Sustainability benchmarks for evaluating and adopting technologies for e-waste recycling in developing countries (Adapted from Schluep et al. ).
An “assessment of waste electrical and electronic equipment (WEEE or e-waste) management strategies in Southeastern Nigeria” was conducted towards suggesting appropriate implementable measures. This submission presents a key outcome of a socioeconomic study on factors influencing the paths of e-waste generation and control with a view to suggesting innovative measures and market potentials for firms in the recycling sector. The concept of the study highlighted strategic features in-line with the socioeconomic assessment of e-waste management. Potentials for innovation in e-waste recycling were discussed in-line with elements of sustainability. The research introduced investigative methods by questionnaire administration. Purposive selections of local government areas were made from five mutually exclusive states. Data were analyzed using descriptive statistics. Results revealed the reasons limiting e-waste management trends to include cheap pricing, availability, quality, as well as superiority of obsolete e-devices to newer EEE. Sustainable benchmarks for evaluating and adopting e-waste recycling technologies were recommended.
- waste electrical and electronic equipment (WEEE or e-waste)
- southeastern Nigeria
As one of the main growing waste streams globally [1, 2], a phenomenal increase in the quantities of disposed waste electrical and electronic equipment (WEEE or e-waste) was globally recorded in more than a few parts [3, 4], therefore, seeking for interventions from policy makers and practitioners, as well as the scientific community. The quantity of disposed electrical and electronic equipment (EEE) has been described to increase at a high rate, especially in industrialized countries where markets are flooded with large volumes. Today, the short product lifecycles and rapid innovation in EEE production have resulted in large number of rather new products been thrown away [5, 6]. Estimations places the annual globally volume of generated e-waste to be between 20 and 50 million tonnes [1, 3, 7]. There have been substantial media reports on transboundary movement of WEEE in Nigeria . Records in 2011 shows that Nigeria imported 1.2 million tonnes of new e-devices and generated e-waste of 1.1 million tonnes . With these mounting quantities of WEEE, focus attention is now extended from how WEEE is managed to include reasons for the rising volume and avenues for it to be avoided .
Many nations are now faced with the task of handling e-waste that are internally generated and those imported from abroad. Findings revealed that many used electrical and electronics equipment (UEEE) shipments into developing nations are combinations of nearly 25% of disused or end-of-life (E.o.L) e-devices and more than 75% of e-waste . On the contrary, e-waste, though a take on problem, could be an important and alternate source for manufacturing materials whenever it is collected, dispersed and reprocessed properly [10, 11, 12]. An entirely new business opportunity is developing with the merchandising, recycling and reprocessing of WEEE [12, 13]. Subjective evidences suggest that there are insufficient actions of management functions for WEEE activities in most emerging nations [7, 9, 14]. Modern trends in recycling of WEEE, still fall short of global practice. Hence, the slow and steady upsurge in the volume of WEEE generated thereby strengthening the concern for waste recovering to protecting valuable materials and safeguarding human health and the environment [1, 13].
Nigeria’s approach to WEEE management is seen as considering such emerging waste more on a basis of socioeconomic benefits instead of a long-term human health and environmental effects . Reports by several authors including those by the Öko-Institut and Green Advocacy Ghana in 2010  and Osibanjo and Nnorom  revealed that this is driven by an approach to catch-up with the “digital divide” through imports of low-priced near E.o.L EEE from industrialized countries. Many E.o.L e-devices are reasonably stockpiled instead of direct disposal with everyday household refuse . Policy regulators and monitors at the local government areas (LGAs), whose mandates covers solid waste management , have unsuccessful establish workable management policy for e-waste management . In several industrialized countries with workable policy frameworks for e-waste, there have raised new businesses revolving around tradeoff, reprocessing and repairs of E.o.L EEE . Primarily, this has been linked to the huge volume of precious metals found inside e-waste. The ratio of prized metals to waste in various E.o.L EEE (especially iron, aluminum, copper, gold etc.) is found to supersede its associated pollutants, therefore encouraging recycling in the e-waste sector . Therefore, the study assessed the socioeconomic factors swaying the paths of e-waste generation and control in Southeastern Nigeria with a view to suggesting innovative measures and market potentials for firms in the recycling sector.
2. WEEE streams: The trail to developing nations
The main sources for WEEE inflow into Nigeria is mapped out to include the container market and RoRo market . It is estimated daily that 500 containers of used laptops, computers, televisions and other e-devices are imported into Nigeria Ports . The 2011 Basel Report noted that e-waste comes to Africa predominately from Europe (majorly through the ports of Felixstowe, Amsterdam and Antwerp). The Nigerian counterpart, Belgian Customs estimates that nearly 90% of these prohibited shipments influx Nigeria environment from co-loaded automobiles with E.o.L EEE [7, 18]. On inspection, many of the exports have problematic contents or are in fact mislabeled for ease of shipment of what are in fact illegal goods. In 2008, the inspection of containers by the Nigeria Customs led to the discovery of 127 e-waste containers, from which 47 of them considered hazardous were reversed and shipped to the origin sources abroad. Up to 2011, the National Environmental Standards and Regulations Enforcement Agency (NESREA) had impounded five vessels carrying WEEE destined for Nigeria .
2.1 Bearings of the WEEE value-chain in Nigeria
e-Waste management in Nigeria is now been tackled not only by relying on prohibiting illegal imports, but by embracing other management strategies through the processes of generation, collection, handling, recovery, recycling and towards final disposal. In this regard, e-waste is considered with the idea of evaluating consumer’s behavioral and its socioeconomic implications [15, 18]. Following the Basel Report on e-waste for 2011, a well-coordinated cluster of e-waste recyclers in some regions across West Africa focused their collection activities mainly on UEEE (or end-of-life EEE) and discarded e-waste. These traders source the items from locally generated and foreign imports which is based on categories of items been savaged . The report showed that those in the recycling sector are engaged in recovering e-waste from waste streams, worked on these items and recovered several types of components and materials. Such recovered components from disassembled devices sometimes sever as sources for repair spare-parts. In another report, Lagos, Nigeria has two main recycling clusters located at Alaba International Market and Ikeja Computer Village employing nearly 15,000 technicians and traders with more than 5000 registered enterprises . These two locations were characterized with high patronage by Nigerians, as well as West and Central African nationals in the sales and professional repairs of refurbished EEE.
Furthermore, it is on record that the collection, handling and refurbishing of e-waste in Nigeria take place mainly in the informal sector of recycling by inexperience, low-class, illiterate and undocumented-business individuals. Some of these scavengers, with no prior training and little investment, move around neighborhoods and waste dumps with their handcarts to collect (or in some cases buy) disused e-devices and related metal scraps that contain valuable like aluminum, copper, brass, iron, etc. . These items recovered are then sold directly to cottage recycling businesses (engaged in dismantling to recover valuable components) or to secondary traders that organize large-scale sales to local and foreign recycling firms . The remnant from the dismantled items is often subjected to indiscriminate disposals - including burning (especially plastics coated materials) [8, 16]. Besides, these scavengers are guaranteed of steady access to daily pay, as the proceeds from each day’s scouting immediately materialize on sales of the recovered components.
2.2 Pathways for e-waste generation and recycling of the households and traders
The transboundary movement of UEEE/WEEE in industrialized nations varies from one country to another. In certain instances, private households organize their e-waste disposal by requesting either government service or private service, usually for a price . More often, the scheduled bulky waste pick-up service is managed by private collectors who are often concerned with the afterward segregation of the collected wastes towards recovery and recycling. Whereas, the measures used during “recycling” in Nigeria are comparably considered crude and unstandardized. Recovered components are sometimes sold for export to other places in Africa and Asia .
The transboundary movements of e-waste in West Africa countries is found to be driven by a craving for UEEE/WEEE owing to its cheap pricing, quality and durability [7, 8]. The brokers and traders of WEEE have been identified as some of the key players in this trade. This sector ranges from household-arrangement to a bulky and well-arranged distributing syndicates. They are well organized and linked from their point of shipment (Europe) to destination (Africa). Another influence in the collection and handling of UEEE/WEEE is the recurrent visits of WEEE traders to designated formal collection centers to request certain useful items for free with a view to process them for export outside Europe [1, 20]. In this vein, some amount of e-waste somehow finds its way into informal arrangements. Consequently items originally designated for recycling plants are diverted from the formal value-chain into the informal sector. The Basel Report of 2011 stressed that this trail of UEEE from the formal recyclers to informal recyclers is the deviation orchestrated by some registered middlemen to illicit traders (or informal recyclers). These brokers act as logistic firms or sub-contractors in scheduling pick-up services for WEEE, and in many instances consent certain items requested by WEEE traders from the waste streams . In turn losing track of what becomes of such items at the end.
2.3 The nexus of e-waste and the SDGs
As e-waste recycling scheme is gaining more attention, there remains slow competitiveness for the adaptation of innovative technologies in the preprocessing of WEEE. Hence, there is a strong need for the adoption of frontier technologies in recycling. Consequently, the problems of WEEE could be linked to the sustainable development goals (SDGs) in areas of building strong businesses, promoting inclusive and sustainable industrialization and fostering innovation (goal-9); justifiable economic growth, complete and productive employment with decent working environment for everyone (goal-8); as well as maintaining sustainable resources usage and production patterns (goal-12) . Therefore, sustainable management of e-waste in Nigeria and its possible recycling is of high relevance to the SDGs—the planet goals—especially to the prosperity goals, and particularly to goal-12.
2.4 Theories and concepts for the socioeconomic evaluation of e-waste management
The old perception of waste disposal—“dilute and disperse” is no longer tenable, rather a novel model of “concentrate and contain” has paved way to an idea referred to as the “Integrated Waste Management Scheme” [16, 22]. Generated waste is now deliberated as wealth out of place. Numerous waste items can now be collected, refurbished, and reused in the industries, agricultural, construction and building sectors etc. thereby safeguarding natural resources and energy in production of new items. Such measures also minimize environmental effects and relative health issues that could arise from the continuous exploitation of natural resources [10, 23]. This study is driven by the Pongrácz “theory of Waste Management” which is grounded on an agreed expectation that waste management can prevent waste to safeguard man and his environment. It assumes that the practice of waste management would avoid resources losses by turning waste to resources and conserving natural resources. Hence, the theory suggests that “we shall prevent waste from being produced by producing useful products (non-wastes) primarily” .
Hence, a conceptual framework (Figure 1) was developed to address the socioeconomic factors for the sustainable management of WEEE in the Recycling Sector. The fundamental aspects in this e-waste framework include the “Political, Institutional, Social, Financial, Economical and Technical”. There are four contextual concerns raised in WEEE management which are namely: “Environmental, Socio-cultural, Political and Economic” [10, 16, 24].
Individuals’ behavior and approach to managing their generated wastes differs owing to their social and cultural traits. For example, people living in a fast developing low-income community have been found to constitute a majority of diverse indigenous group with social difference gap. With such gap of the populace, organizing a thorough e-waste management at such places would be challenging. Secondly, the concern of lobbyists, interest groups and political parties would definitely affect to a large extent the kind of management strategies that is finally put in place for managing e-waste in a community . Therefore, there is a need to incorporate in every stage of the policy making process individuals’ views and participation. Lastly, the purpose of e-waste management, its technical and organizational scheme would depend in general on both the economic context of the inhabitants and the economy of the town. For example, in some fast developing towns like Enugu, Onitsha and Aba in Southeastern Nigeria, there are renowned specialized markets boosting informal trade in Fast Moving Consumer Goods with high trade volumes , and its highly characterized waste management problems . Consequently, the level of economic development is a vital factor in the amount and composition of e-waste generated in that place . Therefore, to accomplish the objective of this paper, the authors focused on assessing the strategic aspects revolving the political structure, social context, individual economy and technical inputs.
2.5 Market potential of innovative e-waste recycling at firm level
The industrialization of Africa could be achieved through sustainable innovation and awareness creation of its innovation potentials. According to a report published by Schluep et al. in 2009 , sustainable innovation refers to the shift of sustainable technologies, products and services to the marketplace, requiring a market creation concept and a shared global agenda. Whereas, environmental management and sustainability focuses on finding solutions to global pressing environmental problems. It is said that the best available environmentally sound management (ESM) systems are programs and techniques that produces sustainable environment through its protection, paving way for safer health and working conditions, generating employment as well as other socioeconomic benefits . In pursuit of these, there arises the deployment of frontier strategies (including the 5Rs) in e-waste management. However, the activities of metal recyclers in Nigeria are secondarily connected with the e-waste recycling sector, because the business outputs are a measure of functional items and valuable components rather than just raw materials . Though, the 2011 Basel Report found the sector producing significant amount of e-waste. This is because the e-waste recycling sector in Nigeria is dominated by firms (or individuals) with “informal” arrangements which collect WEEE at random, manually dismantling (or sorting), preprocessing, selling valuable components and, disposal of the leftovers . On the other hand, prized metals present in printed wiring boards (PWBs) are hardly collected for export to recycling facilities, and when that happens, the selling price is often below world market prices and discouraging to WEEE traders . Also, some devices extracted from WEEE are used as spare parts in the repairs of faulty EEE.
Obviously, the ease to getting vital production materials used in the manufacture of new EEE is progressively attracting concern as global reserves of raw materials is fast declining and becoming more expensive . The overall aim for “formal” e-waste recycling is to avert hazardous materials from WEEE in an ESM manner; recover prized items as much as possible; build an eco-friendly and sustainable SMEs and; consider the socio-economic implications . Consequently, the recycling of e-waste is a key strategy for reducing “stockpiled” waste streams, minimizing the consumption of natural resources as well as improving energy usage. In this light, the paper briefly discuss the sustainability benchmarks for evaluating and adopting technologies for e-waste recycling; some innovative WEEE recycling technologies that could be adopted by recycling firms; as well as the market potential for e-waste recycling in many developing nations.
For a better consideration of the procedure for selecting innovative e-waste recycling technologies in developing countries, Schluep et al.  suggested, among others, the importance of sustainability benchmarks. Table 1 shows the sustainability benchmarks for evaluating and adopting technologies for WEEE recycling in developing nations, including Nigeria. The benchmarks to compare the innovation of technologies were then grouped with elements of sustainability. Whereas, Table 2 shows some innovative e-waste recycling technologies that could be adopted by e-waste recycling firms in Nigeria.
To sum up, the market potential for e-waste recycling are enormous as the annual growth rate of WEEE in Nigeria is put at 10% in the volume of waste generated . It has been identified that a mid-term medium potential for integrated e-waste smelting already exist in some countries of Asia, Africa, South and North America . Hence, from job creation, entrepreneurship and sustainability viewpoints, the “informal” practices of collection and manually dismantling of e-waste may not really require a transformation to a “formal” arrangement using high-tech equipment for the processing of WEEE . The innovative technologies been continuously adapted by the larger informal sector in Nigeria is gaining ground . Opportunities in recycling of e-waste arise in the improvement of the processing of cable-coated from poly-vinyl-chloride and insulators, and poly-brominated biphenyls coated plastics. Also is the collection of large quantities of PWBs for export and fair pricing. By using the voluntary carbon standard (VCS) or carbon action reserve (CAR) schemes, there is now the potential of recovering chlorofluorocarbon from cooling units and insulation foam which in turn brings both environmental and economic gains . It was also suggested that the improved utilization of polystyrene from e-waste recycling would guarantee a higher monetary value from the pricing of carbon (IV) oxide.
3. Materials and methods
The methodical conception for this article is based on both reviews from available literature on sustainability, innovations and management strategies for e-waste, and results from e-waste survey carried out in Southeastern Nigeria. The survey was carried out in mutually exclusive strata of States (Enugu, Anambra, Ebonyi, Imo and Abia) with 95 local government areas (LGAs). A local government area (LGA) was purposefully chosen from every senatorial district in each State, and the fourth LGA was taken as the State’s capital. This selection was predicated on the high volume of e-waste generated and handled in these LGAs. Altogether, 20 LGAs were picked for the survey, with 4 LGAs selected from each State. Questionnaires were administered in each of these LGAs to end-users, traders/recyclers, and policy makers/monitors assessing the “socioeconomic of WEEE” of the study area. A population of 280 respondents was surveyed. From the table for determining sample size , a population of 280 respondents gives 162 sample size representatives of the respondents. Using qualitative and quantitative methods, the study measured e-waste needs and demands; generation, collection and final disposal; recycling measures; associated jobs; incomes to traders and technicians; as well as technology frontiers. Both Table 3 and Figure 2 shows methodological approach employed. The analysis that followed established the extent of reliability and a 95% confidence level placed on the information elicited.
|Stakeholders||Number administered||Number retrieved||% of Number retrieved||Number of valid retrieved questionnaire||% of valid retrieved questionnaire|
Sketchy findings suggest that a sustainable WEEE management scheme requires sufficient and continuous financing, frontier technologies, an equipped working environment and the right institutional motivations for key players . The end-users of WEEE are mainly responsible for the patronage/usage of these UEEE. WEEE traders (or recycling firms) serve to collect and distribute these items, while the monitoring agencies ensure execution of policies, taking feedbacks and acting as check on other stakeholders. Hence, we administered three distinct questionnaires to these three players. Table 4 shows an outline of the main areas of interest captured in the respective questionnaire.
|S/No||Outline of key areas of interest of the questionnaire for “Socio-economic assessment of e-waste”||Stakeholder(s)||Questionnaire type administered||No. of respondents|
|1||Administrative framework for WEEE||Monitoring/control agencies||A||35|
|2||End-user participation in WEEE management activities||Monitoring/control agencies||A||35|
|3||e-Waste disposal practices and patterns by the consumers/end-users||End-users/consumers||B||137|
|4||Factors considered in adopting strategies for final disposal of WEEE by recyclers and dealers||Distributors/recyclers||C||29|
|5||WEEE collection, handling and disposal methods by entrepreneurs and recyclers in South Eastern Nigeria||Distributors/recyclers||C||29|
|6||Socio-economic drivers on trends in generation, collection and disposal of WEEE||Monitoring/control agencies; end-users/consumers; distributors/recyclers||A, B and C||201|
|7||Factors influencing technical planning and design for WEEE management systems||Monitoring/control agencies||A||35|
Three distinct questionnaires were administered to stakeholders. These are (1) the policy regulators and managers vis-a-vis “NESREA, SON, State Environment Protection Agencies, Environmental Health offices & Nigeria Customs Service”; (2) e-waste traders/recyclers—“Dealers, Marketer, Retailers, Technicians and Refurbishers/Recyclers of WEEE”; and (3) e-waste consumers/end-users—“Households, Government Institutions, Industries, Private Offices, Communication/Entertainment Businesses, Educational and Health-Care Centers”.
The responses are presented in tables and figures in the sections that follow. The tables depict a collection of these stakeholders, managerial framework and end-users’ participation. It then measured waste disposal pattern by the consumers, as well as factors leading to choice of strategies adopted for the final disposal of e-waste recyclers and traders. It showed some of the strategies used by these entrepreneurs in the gathering, management and final disposal of WEEE. Lastly, it reflected on the socioeconomic drivers of e-waste, and the issues militating on sustainable framework for e-waste management systems.
4. Results and discussions
4.1 Managerial framework for e-waste by policy administrators
Government’s Regulation S.I.28 of 2009 stresses that part of the plans for e-waste management should comprise endorsing current guidelines and strategies for “solid waste (including e-waste) management” through the conduct of baseline surveys, instituting public health and environmental standards, and making sure there is a monitoring program that include early warning system [6, 10]. Therefore, the promotion of a supportive management strategies and plan of action for WEEE was confirmed by 25(71.43%) policy administrators to be an all-encompassing aspect of policy planning. Also, Table 5 revealed that 19(54.29%) administrators affirmed government’s endorsement of regulations which enforces protection to the environs against indiscriminate disposal of e-waste. Furthermore, results showed that this strategy is supported with the development and implementation of strategic work plans for this special waste in assisting stakeholders—23(62.71%) of these respondents. Nonetheless, 8(22.86%) administrators affirmed that policy regulators (tiers of government) put in place dedicated and competent bodies to implement strategies for e-waste management, while nearly half of these officials—15(42.86%) argued that such a specialized section or unit for an exclusive management of e-waste do not exist in their establishments. Field observations showed that in few places where such relative departments exited, it was rooted under units such as “special waste unit” or “harmful waste division”, and it barely gets adequate appropriations to combat these special wastes. Lastly, results revealed that the management strategies for operation were considered unsuitable by a total of 25(71.43%) policy regulators (from combining 8(22.86%), 13(37.14%) and 4(11.45%) respondents).
Does your agency:
|To very great extent||To great extent||To small extent||To very small extent||Not at all|
|Political framework for WEEE||1||Provide e-waste management tenets in written codes||4||11.45||4||11.45||5||14.29||5||14.29||17||45.57|
|2||Prepare and develop working and management plans to stakeholders||6||17.14||17||45.57||10||28.57||1||02.86||1||02.86|
|3||Have adequate periodic documentation on e-waste quantity and budgeting to support management process||1||02.86||3||08.57||3||08.57||10||28.57||18||51.43|
|4||Establish a competent body to implement e-waste management strategies||4||11.45||4||11.45||8||22.86||4||11.45||15||42.86|
|5||Monitor the sources of e-waste into South Eastern Nigeria||2||05.71||8||22.86||5||14.29||6||17.14||14||40.00|
|6||Monitor and protect the environment against illegal e-waste dumping||9||25.71||11||31.43||3||08.57||4||11.45||8||22.86|
|7||Promote strategies/policies/legislations/acts/regulations for WEEE management||6||17.14||19||54.29||8||22.86||0||00.00||2||05.71|
|8||Promulgate edicts to enforce protection policies against illegal disposal of WEEE||7||20.00||12||34.29||2||05.71||7||20.00||7||20.00|
|9||Enact appropriate legislation on grading rules, waste minimization and so on to back e-waste management strategies||6||17.14||13||37.14||8||22.86||2||05.71||6||17.14|
|10||Are the strategies for implementation appropriate?||2||05.71||8||22.86||8||22.86||13||37.14||4||11.45|
4.2 Regulators opinion of end-users’ participation in e-waste management activities
Public education and participation are necessary to support the plan of action for e-waste management. This is in order to achieve an efficient implementation process of management strategies. As depicted in Table 6, together 18(51.43%) policy regulators affirmed government engagement in the sensitization of interested parties. While more than half of them—19(54.29%) agreed that the populace is amply involved with the implementation process of control strategies. However, 24(68.57%) respondents admitted that end-users simply comply with the implemented strategies. Furthermore, these administrators also suggested that the common means for e-waste sensitization were executed with Radio jingles/programs—17(48.57%), Television announcement/documentaries 5(14.29%), Posters 5(14.29%), Handbills/flyers 5(14.29%), as well as (mobile advertisements, campaigns, road-shows, etc.) 3(08.57%) respondents.
Does your agency:
|To very great extent||To great extent||To small extent||To very small extent||Not at all|
|Public education and participation||1||Educate the public on e-waste management scheme||7||20.00||11||31.43||2||05.71||2||05.71||13||37.14|
|2||Are all sectors of the populace adequately carried along during implementation of strategies?||2||05.71||9||25.71||14||40.00||5||14.29||5||14.29|
|3||Does all sectors always comply with the strategies employed?||0||00.00||2||05.71||9||25.71||15||42.86||9||25.71|
4.3 Disposal practices and patterns of e-waste by the end-users
Together Table 7 and Figure 3 underlined management strategies adopted and practiced for e-waste by the customers. This assessment discovered that the most common strategy adopted in the final disposal of WEEE by many homes and businesses is the direct disposal of e-waste along with other regular solid wastes—96(70.07%) respondents. Additional measures embraced by the households included the reselling of disused EEE—32(23.36%), and stockpiling—21(15.33%). In few cases, end-users were found to abandon their defective e-devices with technicians/recyclers who at times refurbish or recovers valuable components—21(15.33%) end-users. In similarly manner, some consumers take apart components of simple devices and reclaim functional parts—25(18.25%). Also, end-users admitted donating certain disused devices to individuals, friends, religion centers, schools, non-governmental organizations (NGOs), etc.—19(13.89%). Besides, it was shown that whatsoever strategy choice(s) chosen by the consumer, the state of the E.o.L EEE or e-waste was definitely taken into account before disposal. 100(72.99%) end-users said that their e-devices which were damaged beyond repairs would certainly be thrown away. However, 4(02.92%) consumers agreed that they would rather throw away any disused EEE which could likely be repaired. An additional 33(24.09%) respondents proposed that E.o.L EEE or disused (obsolete) EEE would also be thrown into the waste stream (Figure 3). In addition to the aforementioned decisions, 91(66.42%) consumers established that they hardly apply any particular stratification measure for generated e-waste before the final disposal into waste streams. Specifically, 85(62.04%) end-users confirmed that their disused batteries are disposed along with other household waste.
|Q/N||(Section D—Consumers/end-users questionnaire)|
|20||How do you discard your waste electronics devices?||Keep in store room||21||15.33|
|Resell the devices||32||23.36|
|Disposed with general waste||96||70.07|
|Give them to a recycler||21||15.33|
|Donate to family, friends, school, NGO, etc.||19||13.89|
|Return to the store where it was bought for a reduction on the price of a new device||11||08.03|
|Return to the seller on a buy-back arrangement||2||01.46|
|Disassemble to reuse some parts||25||18.25|
|Put it on the street||2||01.46|
|Give it to hawkers||1||00.73|
|21||At what state do you do this?||Broken—Not repairable||100||72.99|
|Old or out dated (Obsolete)||33||24.09|
|27||Do you apply any specific classification/stratification for e-waste before disposal?||Yes||15||10.93|
|28||How do you dispose used batteries?||Disposed along with other waste||85||62.04|
|Stratified and disposed alone||18||13.14|
|Disposed along with other classified hazardous waste||21||15.33|
4.4 Factors influencing the adoption of strategies for the disposal of e-waste by recycling firms
Starting with Table 8, several factors were admitted by the stakeholders as reasons for the choice of final disposal of generated e-waste. The survey considered some of these drives to include: obsolescence devices; damaged beyond parts; high cost of maintenance/replacement of components; unavailable spare-parts; as well as unwarranted e-devices. Additional reasons considered by the respondents included business growth, innovation within the firm, slow processing speed of e-devices, inadequate storage capacity of EEE, faults from power-surge, and fault resulting from lightning. Field survey results  showed that many recyclers/technicians throw away disused e-devices owing to outdated functionality—12(41.38%), and when these items are broken beyond repair—15(51.72%). One more noteworthy cause for this latter practice is the absence of replacement spare-parts—9(31.04%) respondents. On the other hand, e-waste traders were unlikely to dispose of faulty e-devices because of non-warranty (divestment)—9(31.04%); business expansion—9(31.04%); power-surge faults—10(34.48%); as well as damages occasioned by lightning—12(41.38%). These second factors are the obvious reasons for e-waste stockpiling in my places and locations surveyed.
|Insignificant ↔ Most_Significant|
|2||Damage beyond repair||2||06.70||2||06.70||4||13.79||6||20.67||15||51.72|
|3||Cost of maintenance||4||13.79||8||27.59||7||24.14||7||24.14||2||06.70|
|4||Repair components not available||3||10.35||0||00.00||6||20.67||4||13.79||9||31.04|
|6||Expansion of business||9||31.04||9||31.04||3||10.35||5||17.24||3||10.35|
|8||Processing speed inadequate||8||27.59||3||10.35||11||37.93||5||17.24||2||06.70|
|9||Storage capacity inadequate||7||24.14||8||27.59||6||20.67||6||20.67||2||06.70|
4.5 e-Waste management measures adopted by recycling firms
Table 9 suggests that the stakeholders involved in WEEE refurbishing and recycling applies one or more of the seven standard strategies in the management of generated e-waste. Many entrepreneurs and recyclers of WEEE in Southeastern Nigeria manage their E.o.L EEE and e-waste by adopting strategies like Reuse of e-waste—18(45%); Repair of disused devices—16(40%); and Incineration (burning)—16(40%). In other occasions, technicians searched for and recycle peculiar components from disused e-device that are valuable and could serves as repair spare-parts for other faulty appliances. In such cases, e-waste is dismantled to retrieve these valuable components and reuse directly during repairs or indirectly in developing of new items. A computer technician confirmed the use of Light Emitting Diode salvaged from disused laptops in the development of electricity detector used in homes. Likewise, some mobile phone businesses in major commercial towns in Southeastern Nigeria were engaged to recalling E.o.L mobile phones on behalf of the parent manufacturers. For instance, two sales outlets of a particular firm in Enugu metropolis accepted from their customers E.o.L mobile phones as trade-in for a new ones with an average of 70% price (of the new product) being committed by the customer. This is apparent under agreed conditions dictated by the fronting firm to the end-users. In contrast, it is important to mention that the assertion of using incinerators as a strategy in managing e-waste is far from reality in the study area. Observations from the study area revealed that stakeholders rather practiced surface burning of WEEE and this takes place in a number of locations (mostly in low-lying lands). This is clearly misjudged as incineration of e-waste. Despite the fact that both processes lead to combustion of the waste materials, surface burning occurs in lower temperatures of between 20°C and 300°C, and incineration involved higher temperatures ranges of up to 1000°C in an environmentally confined engineered plant that traps ashes and non-combustibles remnants . Not a single stakeholders surveyed possesses or operates a confined incinerator for the aim of e-waste management. Also, 11(27.50%) respondents admitted that generated e-waste was management by landfilling. Yet again, observations on the field suggested otherwise. Similarly, landfills are well-engineered facilities designed, operated, carefully monitored, and located off town. They are closely cared for even after years of closure. It could be cleaned up when need be and pay for to insure adequate compliance with standard environmental laws. From global perspective, several landfills maintenances are intermittently managed by government’s prescribed environmental authorities. Most of the surveyed policy regulators could not affirmed to have a well-engineered system of landfill and incinerator in place in Southeastern Nigeria. Also, where claims of landfilling practices took place in the surveyed area, it was another misrepresented for a long term low-land repossession by using collected wastes as a feedstock.
|Q/N||(Section D) Policy instrument||N||%|
|1||Recycling of e-waste||13||32.50|
|Reuse of e-waste||18||45.00|
|Recovery of e-devices||10||25.00|
|Source reduction of generated e-waste||5||12.50|
|Repair of E.o.L electrical/electronic equipment||16||40.00|
|Landfill of waste||11||27.50|
|Incineration of waste||16||40.00|
4.6 The socioeconomic drivers on trends in the management of e-waste
Four factors were recognized and reflected as likely economic drivers which determined the disposal pattern of obsolete EEE (or e-waste) in Southeastern Nigeria. These included cheaper e-devices, access to EEE, crave over inferior devices, and the quest for superior EEE. Table 10 showed officials of the regulatory agencies in the surveyed area strongly affirming some of these key economic drives as access to e-waste—25(71.43%), as well as low-priced WEEE—16(45.71%). From this, a line can be drawn from several literatures which have shown clear suggestions buttressing the claims that Nigeria was undergoing rapid ICT revolution in recent years . As a result to connect with the “digital divide”, attempts were made by individuals and e-waste traders to import cheap and (sometimes) durable E.o.L e-devices (or e-waste) from developed countries into Nigeria. Also, Table 10 showed that the upsurge in the demand by end-users and e-waste traders for UEEE (or e-waste) could be linked to its cheap pricing—141(79.66%); device durability—96(54.24%); economic class of consumers—77(43.50%); EEE accessibility—82(46.33%); as well as the quality of WEEE and its superiority to (some brand) new products. While the noting the factors influence the final disposal of e-waste, these respondents associated these to high cost of disposal—43(24.29%); inadequate storage space—38(21.47%); associated disposal fees—46(25.99%); quick obsolesce of UEEE—42(23.73%); and the inaccessibility to formal recycling plants/facilities, as well as enormous cost in setting up a formal recycling facility for e-waste disposal. Owing to such associated cost, there exists only one eco-friendly electronic waste recycling company—E-Terra in Nigeria.
|(Monitoring Agencies = 35)||Cheap EEE||Availability of EEE||Inferior EEE||Superior EEE||Others|
|1||What are the economic drives that help to determine the disposal of used electrical/electronic device?||16(45.71%)||25(71.43%)||13(37.14%)||5(14.39%)|
|(End-users + Dealers = 177)||Cost||Durability||Income||Accessibility||Others|
|2||What give rises to the attractiveness of used (Tokunbo) electrical electronic equipment in South Eastern Nigeria?||141(79.66%)||96(54.24%)||77(43.50%)||82(46.33%)||Quality(2), superiority, cheap|
|(End-users + Dealers = 177)||Cost of disposal||Lack of storage space||Money exchanged for WEEE||Obsolesce||Others|
|3||What are the possible economic drivers for final disposal of WEEE||43(24.29%)||38(21.47%)||46(25.99%)||42(23.73%)||Availability of recycling facilities, cost of recycling (2)|
4.7 Factors swaying the planning and design for sustainable e-waste management systems
The laws and guidelines that support e-waste management schemes in Southeastern Nigeria were identified to be anchored on four strategic aspects and therefore considered for this study. These included establishment of state-of-the-art technologies and essential working equipment, capable and sufficient manpower, funding of WEEE schemes, as well as impediment in implementation of e-waste regulations. From Tables 11, 18(51.43%) of the monitory and regulatory agencies were able to show that the absence of frontier technologies, essential and new equipment has hindered the operations and enthusiasm of e-waste managers. Furthermore, inadequate funding of e-waste schemes—14(40.00%) was acknowledged as a major factor influencing the ineffectiveness in the process of e-waste collection and disposal, as well as the choice adopted for final disposal measures. Collectively, 21(60.00%) policy regulators agreed that the type of guideline framed and approved by the political system sometimes militates against the effective execution of management plans for e-waste.
|S/N||Question:||Are there any particular difficulties in the implementation process of e-waste management strategies?|
|Strongly Agreed||Agreed||Disagreed||Strongly Disagreed|
|1||Lack of technologies /necessary equipment||18(51.43%)||6(17.14%)||4(11.43%)||1(02.86%)|
|2||Lack of adequate manpower (Personnel)||7(20.00%)||12(34.29%)||9(25.71%)||1(02.86%)|
|4||Nature of guideline options formulated by the political system||10(28.57%)||11(31.43%)||5(14.29%)||3(08.57%)|
5. Conclusion and policy recommendations
To recapitulate, this paper discussed the transboundary movements of e-waste, the sustainability benchmarks for evaluating and adopting technologies, innovative recycling technologies, and market potential for e-waste recycling in Nigeria. With the aim of assessing the socioeconomic factors swaying e-waste generation and disposal, data collected were analyzed and discussed. The survey revealed that the structure for developing sustainable strategies frameworks and establishing resilient infrastructure for the effective management of e-waste are clearly lacking. End-users of e-waste are in the habit of stockpiling and indiscriminately disposal of e-waste. Also, it was revealed that e-waste was not segregated from household waste before final disposing. Formal recycling of e-waste is yet to be domesticated in Southeastern Nigeria. The socioeconomic reasons for the rising volume of WEEE in the study area include its cheap pricing, quality and durability, economic status of the consumer, and easy access to disused e-waste. Some of the acknowledged factors hindering the sustainable disposal of e-waste includes unavailability of innovative technologies, high cost of setting up of recycling facilities, inadequate space for stockpiling, and total obsolesce of disused EEE.
A sustainable e-waste recycling scheme would not be economically worthwhile without suitable policies in place, adoption of frontier technologies and financial measures attached. First, the management strategies for WEEE should be focused on evolving tenets of operations, and frontiers in e-waste recycling that deploys innovative and sustainable technologies. This could be achieved by adopting sustainability benchmarks for evaluating and adopting new strategies and technologies for e-waste recycling; awareness creation in the value-chain for stakeholders; as well as exploring the market potentials for e-waste recycling. These would in turn improve social and economic benefits, including decent job creations. Lastly, this can be realized through promoting appropriate policies and deliberate producer-led (and government support) initiative for recycling of e-waste.