Recycling and Material Recovery in Cameroon: Implications for Poverty Alleviation and Ecological Sustainability
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Recycling and Material Recovery in Cameroon: Implications for Poverty Alleviation and Ecological Sustainability Von der Fakultät für Umweltwissenschaften und Verfahrenstechnik der Brandenburgischen Technischen Universität Cottbus zur Erlangung des akademischen Grades eines Doktor-Ingenieurs genehmigte Dissertation vorgelegt von M.Sc. Fred Zisuh Asong aus Tiko, Kamerun Gutachter: Prof. Dr. Jürgen Ertel Gutachter: Prof. Dr. Hans-Jürgen Voigt Tag der mündlichen Prüfung: 27.01.2010 ii Dedication To: My lovely wife Lekeaka for her constant support and endurance for the years I have been away. My Dad (Zisuh) and Mum (Ajoache) for academic and moral upbringing. It has always been their dream to see me reach this level. My mother-in-law, Mama Grace Fonkeng for the lessons of endurance and commitment I have learned from her. iii Declaration I, Fred Zisuh Asong, do hereby declare that this doctoral dissertation entitled “Recycling and Material Recovery in Cameroon: Implications for Poverty Alleviation and Ecological Sustainability” carried out at the Chair of Industrial Sustainability and submitted to the Faculty of Environmental Sciences and Process Engineering at Brandenburgische Technische Universität Cottbus, Germany in partial fulfillment of the requirements for the award of a “Doktor-Ingenieur” (Dr.-Ing) is my original research. The thesis was supervised by Prof. Dr. rer. nat. Jürgen Ertel, Head of the Chair of Industrial Sustainability at BTU Cottbus (main supervisor) and Prof. Dr. rer. nat. Hans- Jürgen Voigt, Head of the Chair of Environmental Geology at BTU Cottbus (co- supervisor). The thesis was defended on 27th January 2010 before an examination panel comprising Prof. Dr. Jur. Albrecht (Head), Prof. Dr. rer. nat. Jürgen Ertel, Prof. Dr. rer. nat. Hans-Jürgen Voigt and Prof. Dr. rer. nat. habil. Albrecht Gnauck. While part of this dissertation builds on the conceptual framework from some of my previous studies at the above mentioned Chair and under the supervision of Prof. Dr. rer. nat. J Ertel, I do also declare that the contents of this doctorate dissertation have never been submitted in part or whole to any other academic or awarding institution for the award of an academic degree. Asong, Fred Zisuh (2311986) (B.Sc. Geology; M.Sc. Appl. Geology; M.Sc. ERM) iv Acknowledgments I would only have done myself justice by admitting work of this magnitude could not have been achieved without the immense support of some sort from some people around me and a whole lot whom I got to meet or crossed path during my study period. My sincere gratitude goes to Prof. Dr. rer. nat. Jürgen Ertel for accepting to supervise this research. Having benefited your supervision from my study project and master thesis (at the master study program in Environmental and Resource Management) and the present supervision for my doctorate thesis, I have not only got a rewarding big thank you but I have come a long way to learning some realities in the academic world and how such realities connect with the outside world. More so, I have learned good human character necessary for interaction in an international community. I also express enormous thanks to Prof. Dr. rer. nat. Hans-Jürgen Voigt of the Chair of Environmental Geology at BTU Cottbus for co-supervising this research. Your critical comments have been helpful. I am also grateful to DAAD through the BTU International office for providing some financial support for my research. I am deeply indebted to Dr. Agyingi, C.M. of the University of Buea for being a helpful contact and resource person in Cameroon and whose input to this work has been commendable. Your love for truth and humility has been my ideal. I wish to thank Obasi Marinus (Life Science graduate of University of Buea) and his pals for the immense help and selfless sacrifice to me for field work and other data collection. To my younger brother, Dr. Ngoasong Michael Zisuh of Nottingham Trent University, England, I say thank you for your financial and moral support. To my bosom friends Nkamta Ernest N. and Nkengapa Daniel L, because of your true friendship to me, I can only say I love you. My gratitude to Mr Klaus-Peter Dreyer for the initial translation of the dissertation summary into German and to Madam Susann Handke, secretary at the Chair of Industrial Sustainability for the final German version and for her wonderful cooperation in administrative issues related to my studies at the Chair. v I wish to acknowledge the massive financial, moral and spiritual support my Dad (Zisuh) and Mum (Ajoache) have provided me with especially in the past six years. And to my sisters and brothers: Mrs Sinju nee Atabong J., Mrs Forzi nee Ngulefac F., Mrs Fuanchenaleh nee Ngenyi E., Nchonganyi Marie, Njinyah Sam, Nkemnji Jude and Ndemafia B, the fact that you demanded so little of me but gave me more was a true sign of your wish to see me succeed. To you all I owe my appreciation and love. I owe immense gratitude to my in-laws the Tsamoh's and Bissong's not only for their support and encouragement but for their coming to terms with the fact that I had to be away from their daughter (my wife) for over three years because of academic obligations. Yours have been a rare but highly commended level of understanding. May the good lord continue to bless and keep you. I remain indebted to the Kembe‟s (especially wife Fru Rose Bih) for the huge impact they created on me during my studies – at some points you were like parents to me. Only the good lord would reward you abundantly. At some point in time when the future seemed bleak, Mrs Ajuang nee Sulwe Jackson and Kwah Mbazang did make a difference for me and for this I owe them gratitude. A whole lot of friends also made life worth living for me during these tumultuous years out of home and all of whose names I cannot cite here not because of negligence yet I remain thankful to them. I wish to acknowledge the support from the following friends: Nkemnkeng Pius, Anu Mbunya, Tabenyang Victor, Samjeh Dinga, Nkengasong Henson, Frau Dreyer nee Daisy Adhiambo, Frau Bittner nee Akinyi Yvonne. Life away from my lovely spouse Atemkeng Mirabel L has never been any easy for me. Despite the huge geographic separation, the love, support and encouragement I received from her was enormous. Her faith in God and her trust in prayer have been so vital in my success. Sweetheart thank you for all you are to me. Despite my weaknesses and foolishness, I trust God has been blessing me and will always do so. To Him be glory, praise and honor. Amen! vi Summary Recycling and material recovery are gaining more grounds in applicability as viable options to sustainable solid waste management especially in Municipal Solid Waste Management (MSWM) schemes. In this dissertation a critical analyzes is made of the MSWM problem in Cameroon and an assessment of the role Small- and Medium-Size Enterprises have been playing in the area of recycling and material recovery. The main research methods applied in this research include: fieldwork, administration of questionnaires, interview and literature review. Using two case study localities (Limbe and Buea municipalities), the various practices in MSWM are elaborated, the constraints and challenges faced by management discussed and proposals for either expanding/upgrading existing schemes to be more sustainable as well as strategies to initiate new systems presented. Innovations within collection systems such as the introduction of household bins and specialized collection of specific waste could be quite beneficial to existing schemes. Waste Electrical and Electronic Equipment (WEEE) which constitute one of the fastest growing waste streams presents greater management challenges. Two case study localities (Buea and Kumba) are used to analyze the problem of WEEE in Cameroon. An overview of the handling of Electrical and Electronic Equipment (EEE) at end-of-life (EoL) in Cameroon is made with special focus on households and repair units. At household level, WEEE is disposed of alongside other waste arisings in the available disposal facilities for given household. Repair units represent a very vital connection between dysfunctional EEE and EoL forms as all users of EEE tend to bring these devices to these units for repairs. An inventory of the various EEE at repair units for these two localities shows that above 40% percent of such equipments are totally out of use. In Kumba, Classes 1 and 4 EEE (according to EU WEEE directive classification) dominate while class 3 is almost absent. In Buea, Class 3 and 4 are dominant. These results show that socio-cultural, economic and even climatic factors influence the choice of EEE that people in this area acquire. The intense level of repair activities and recovery of useful parts by repair units show that there exist adaptable options to handle WEEE in especially economically and environmentally beneficial ways. The recycling of aluminum for production of household utensils represents a very basic vii and adaptive industrial set-up, which can easily be operated and run at very cheap cost and with a little manpower. While this venture seems apparently successful in economic terms as an option to poverty alleviation through income generation, it is plagued by some problems which, if given due consideration will render it a prospective option for poverty alleviation (through small enterprise business development) and environmental sustainability (as an option to sustainable MSWM). In this dissertation, a model is thus presented, which can be utilized by stakeholders to improve on the sector. An assessment of efforts and constraints to implementing comprehensive recycling and recovery schemes in Cameroon was also carried out. Results show that there are existing practices on which comprehensive recycling and recovery can be built upon that would be beneficial to both councils and engaged schemes – mostly SMEs and NGOs.