Your search found 10 records
1 Nikiema, Josiane; Tanoh-Nguessan, R.; Abiola, F.; Cofie, Olufunke O. 2020. Introducing co-composting to fecal sludge treatment plants in Benin and Burkina Faso: a logistical and financial assessment. Colombo, Sri Lanka: International Water Management Institute (IWMI). CGIAR Research Program on Water, Land and Ecosystems (WLE). 50p. (Resource Recovery and Reuse Series 17) [doi: https://doi.org/10.5337/2020.206]
Resource recovery ; Resource management ; Reuse ; Faecal sludge ; Waste treatment ; Solid wastes ; Treatment plants ; Composting ; Logistics ; Economic analysis ; Waste management ; Waste collection ; Sewerage ; Recycling ; Waste disposal ; Sludge dewatering ; Anaerobic treatment ; Septic tanks ; Sanitation ; Technology ; Maintenance ; Public-private partnerships ; Investment ; Business models ; Cost recovery ; Production costs ; Operating costs ; Marketing ; Cost benefit analysis ; Land use ; Urban areas ; Households / West Africa / Benin / Burkina Faso / Ghana / Ouagadougou / Accra / Grand Nokoue
(Location: IWMI HQ Call no: IWMI Record No: H049802)
(1.47 MB)
Based on primary data from fecal sludge (FS) treatment plants in three West African urban regions (Ouagadougou in Burkina Faso, Greater Accra in Ghana, and Grand Nokoué in Benin), FS collection and treatment patterns were analyzed to identify possible scenarios for resource recovery (RR) through FS co-composting. FS collection was analyzed for up to 7 years, in part per day, month and season, as well as FS characteristics to understand peak flows, FS qualities and related variations to plan for appropriate RR technology and capacities.
Overall, the FS volumes collected by vacuum trucks were not significantly affected by the calendar days, months or seasons. Commonly assumed increases during rainy months were, for example, only recorded in Ouagadougou. FS composition appeared highly variable with a pronounced difference in total solids between FS collected from households versus institutional sources, likely indicating that institutions are served more frequently.
The analyzed treatment plants appear to be exploited beyond their capacity. RR for reuse can turn sludge disposal from a cost into a source of revenue with co-benefits for farmers and the environment, thereby reducing the pressure on tipping fees. The probability of the added co-compost production being financially viable on its own was estimated for all the study sites, indicating an earliest breakeven point after 5 to 8 years.
Overall, the FS volumes collected by vacuum trucks were not significantly affected by the calendar days, months or seasons. Commonly assumed increases during rainy months were, for example, only recorded in Ouagadougou. FS composition appeared highly variable with a pronounced difference in total solids between FS collected from households versus institutional sources, likely indicating that institutions are served more frequently.
The analyzed treatment plants appear to be exploited beyond their capacity. RR for reuse can turn sludge disposal from a cost into a source of revenue with co-benefits for farmers and the environment, thereby reducing the pressure on tipping fees. The probability of the added co-compost production being financially viable on its own was estimated for all the study sites, indicating an earliest breakeven point after 5 to 8 years.
2 Kulkarni, B. N.; Anantharama, V. 2020. Repercussions of COVID-19 pandemic on municipal solid waste management: challenges and opportunities. Science of the Total Environment, 743:140693. (Online first) [doi: https://doi.org/10.1016/j.scitotenv.2020.140693]
Coronavirus disease ; Pandemics ; Waste management ; Solid wastes ; Municipal wastes ; Waste collection ; Waste treatment ; Recycling ; Landfills ; Public health ; Risk ; Developing countries ; Socioeconomic environment ; Households
(Location: IWMI HQ Call no: e-copy only Record No: H049832)
(0.96 MB)
The COVID-19 pandemic has caused global emergency and has raised social and economic concerns which will also spill over to environmental issues. Amid this natural experiment, current study evaluates prevailing municipal solid waste (MSW) management practices, with the emphasis on MSW treatment and disposal facilities in select developed and developing countries. The data and information used in this paper is collected from several scientific research papers from different disciplines, publications from governments and multilateral agencies and media reports. Despite limited literature on MSW management during such pandemics, this article presets a global backdrop of MSW management during COVID-19 outbreak and examines various aspects of MSW management. Discussion includes identifying parameters of disease transmission through solid waste handling, consequences of medical waste surge on current municipal waste treatment and disposal systems. Further, based on previous pandemic and disaster waste management studies, this study also presents challenges and opportunities in the aftermath of the ongoing pandemic. The paper recommends alternatives approaches for MSW treatment and disposal and outlines the future scope of work to achieve sustainable waste management during and aftermath of the pandemics.
3 Majumder, Ayan; Ulrich, Andreas; Taron, Avinandan. 2020. Catalog of technical options for solid waste management in Bangladesh. Colombo, Sri Lanka: International Water Management Institute (IWMI). CGIAR Research Program on Water, Land and Ecosystems (WLE). 115p.
Waste management ; Solid wastes ; Technological changes ; Value chains ; Resource recovery ; Reuse ; Waste disposal ; Waste collection ; Urban wastes ; Transport ; Waste treatment ; Recycling ; Waste landfills ; Methane fermentation ; Organic wastes ; Composting ; Plastics ; Fuels ; Regulations ; Planning ; Maintenance ; Costs ; Households ; Public participation / Bangladesh
(Location: IWMI HQ Call no: e-copy only Record No: H050041)
(11.7 MB)
4 Pharino, C. 2017. Challenges for sustainable solid waste management: lessons from Thailand. Singapore: Springer. 141p. (SpringerBriefs on Case Studies of Sustainable Development) [doi: https://doi.org/10.1007/978-981-10-4631-5]
Waste management ; Solid wastes ; Sustainable development ; Waste treatment ; Recycling ; Waste collection ; Waste disposal ; Municipal wastes ; Household wastes ; Hazardous wastes ; Toxic substances ; Electronic equipment ; Landfills ; Pollution control ; Environmental impact ; Integrated management ; Costs ; Technology ; Strategies ; State intervention ; Policies ; Community involvement ; Public opinion ; Public health ; Developing countries ; Case studies / Thailand / Bangkok / Phang Khon / Sakol Nakorn
(Location: IWMI HQ Call no: e-copy SF Record No: H049700)
5 Senanayake, Dehaja; Reitemeier, Maren; Thiel, Felix; Drechsel, Pay. 2021. Business models for urban food waste prevention, redistribution, recovery and recycling. Colombo, Sri Lanka: International Water Management Institute (IWMI). CGIAR Research Program on Water, Land and Ecosystems (WLE). 85p. (Resource Recovery and Reuse Series 19) [doi: https://doi.org/10.5337/2021.208]
Resource recovery ; Resource management ; Reuse ; Food wastes ; Business models ; Waste management ; Urban wastes ; Waste reduction ; Redistribution ; Recycling ; Food consumption ; Food losses ; Waste collection ; Food supply chains ; Stakeholders ; Entrepreneurs ; Public-private partnerships ; Markets ; Incentives ; Energy recovery ; Nutrients ; Sustainable Development Goals ; Goal 12 Responsible production and consumption ; Environmental impact ; Food preservation ; Composting ; Feeds ; Regulations ; Policies ; Awareness raising ; Consumer participation ; Costs
(Location: IWMI HQ Call no: IWMI Record No: H050448)
(5.48 MB)
A necessary extension of the concept of Resource Recovery and Reuse with an even higher priority is the prevention and reduction of waste. One concern, in particular, is food waste, which constitutes the largest share of human waste. Target 12.3 of the United Nations Sustainable Development Goals (SDGs) is to ‘halve per capita global food waste at the retail and consumer levels and reduce food losses along production and supply chains, including post-harvest losses, by 2030’. For this report, over 400 businesses were analyzed to identify common approaches and business models to address the food waste challenge. The business models are presented under seven categories – measurement, redistribution, resell, value addition, responsible waste collection, resource recovery, and recycling – with a special focus on their application potential to the Global South.
6 Tawfik, Mohamed Hassan; Hoogesteger, J.; Elmahdi, Amgad; Hellegers, P. 2021. Unpacking wastewater reuse arrangements through a new framework: insights from the analysis of Egypt. Water International, 46(4):605-625. [doi: https://doi.org/10.1080/02508060.2021.1921503]
Water reuse ; Wastewater treatment ; Waste management ; Waste collection ; Sewerage ; Irrigation ; Water policies ; Regulations ; Treatment plants ; Technology ; Water resources ; Villages ; Farmers ; Case studies / Egypt / Nile Delta / Marsa Matrouh / El Hamamee / Al Ashara
(Location: IWMI HQ Call no: e-copy only Record No: H050497)
https://www.tandfonline.com/doi/pdf/10.1080/02508060.2021.1921503?needAccess=true
https://vlibrary.iwmi.org/pdf/H050497.pdf
https://vlibrary.iwmi.org/pdf/H050497.pdf
(10.20 MB) (10.2 MB)
Wastewater reuse is identified as strategic to help ameliorate scarcity in water-stressed regions around the world. However, to develop it, there is a need to better understand the social, institutional and technological contexts in which it takes place. This article develops a novel socio-technical framework to inform such an analysis and applies it to current wastewater reuse in Egypt. Our analysis highlights the different actors, management activities and practices that shape wastewater collection, transfer, treatment, discharge and/or reuse in different social, technological and environmental contexts in Egypt. It points out bottlenecks of current wastewater reuse policies and programmes.
7 Taron, Avinandan; Drechsel, Pay; Gebrezgabher, Solomie. 2021. Gender dimensions of solid and liquid waste management for reuse in agriculture in Asia and Africa. Colombo, Sri Lanka: International Water Management Institute (IWMI). CGIAR Research Program on Water, Land and Ecosystems (WLE). 33p. (Resource Recovery and Reuse Series 21) [doi: https://doi.org/10.5337/2021.223]
Resource recovery ; Resource management ; Water reuse ; Gender equity ; Social equality ; Waste management ; Solid wastes ; Liquid wastes ; Agricultural value chains ; Circular economy ; Business models ; Women's participation ; Urban wastes ; Household wastes ; Faecal sludge ; Waste collection ; Recycling ; Wastewater treatment ; Organic wastes ; Composting ; Wastewater irrigation ; Sustainable Development Goals ; Health hazards ; Sanitation ; Community involvement ; Social marketing ; Entrepreneurs ; Farmers / Asia / Africa / India / Indonesia / Philippines / Vietnam / Nepal / Ghana
(Location: IWMI HQ Call no: IWMI Record No: H050720)
(978 KB)
This report examines social equality aspects related to resource recovery through solid waste composting and wastewater irrigation. The report shows that women are represented in greatest numbers at the base of the recycling chain, most often as informal waste pickers and as sorters of recyclables with limited access to resources and upward mobility. Despite a wide gender gap in the solid waste and sanitation sectors, women play a key role in both municipal waste reduction and food safety where irrigation water is unsafe. Analyzing the gender dimension is important for understanding household responses to recycling programs, differences between the formal and informal sectors as well as along the waste-to-resource value chain from collection to treatment and reuse. The report stresses the important role of women in household waste management, including waste segregation, and the power of women-dominated waste picker associations, where the informal sector plays an essential role alongside the formal sector.
8 Jayathilake, Nilanthi; Drechsel, Pay; Dominish, E.; Carrard, N. 2021. Organic waste system assessment: Kaduwela Municipal Council. Report prepared by the International Water Management Institute (IWMI) as part of Activity 1 within the project “From Urban Waste to Sustainable Value Chains: Linking Sanitation and Agriculture through Innovative Partnerships”. Sydney, Australia: University of Technology Sydney. Institute for Sustainable Futures. 53p.
Organic wastes ; Urban wastes ; Municipal authorities ; Waste management ; Assessment ; Solid wastes ; Faecal sludge ; Waste collection ; Waste treatment ; Waste disposal ; Treatment plants ; Recycling ; Composting ; Biogas ; Landfills ; Resource recovery ; Sanitation ; Private sector ; Financial analysis ; Parameters / Sri Lanka / Kaduwela
(Location: IWMI HQ Call no: e-copy only Record No: H050835)
https://opus.lib.uts.edu.au/bitstream/10453/148959/2/Waste%20Supply%20Assessment_From%20urban%20waste%20to%20sustainable%20value%20chains.pdf
https://vlibrary.iwmi.org/pdf/H050835.pdf
https://vlibrary.iwmi.org/pdf/H050835.pdf
(4.99 MB) (4.99 MB)
9 Muheirwe, F.; Kombe, W.; Kihila, J. M. 2022. The paradox of solid waste management: a regulatory discourse from Sub-Saharan Africa. Habitat International, 119:102491. [doi: https://doi.org/10.1016/j.habitatint.2021.102491]
Solid wastes ; Waste management ; Regulations ; Policies ; Waste collection ; Governance ; Developing countries ; Informal settlements ; Awareness ; Political aspects ; Towns / Africa South of Sahara
(Location: IWMI HQ Call no: e-copy only Record No: H050864)
(0.60 MB)
Solid waste management remains a challenge globally attributed to several factors including inadequacies and ineffectiveness of policies. Presumably, good policies should translate to better solid waste management practices. However, other underlying factors and implementation challenges may determine the waste management status. Thus the debate in the literature on solid waste management policy and practice remains inconclusive. Based on literature review, this paper examines the discourse on solid waste management regulation and status in Sub-Saharan Africa. A paradox of policy outcomes is revealed at global and national level. Global policies have not been holistically contextualised and integrated in national policies. While national policies have not improved the solid waste management status of some countries, in others, it has, albeit unsustainably. Notably, inherent weaknesses such as insufficiency, homogeneity and ambiguity of policies affects implementation. This is exacerbated by poor enforcement strategies, lack of participatory mechanisms, inadequate sensitisation, influence of power and politics, as well as weak political commitment, among others. To ensure smart and clean cities, it is crucial for initiatives of solid waste management not only to be legally supported, but also contextualised and co-generated. For effective policy implementation, there is need for sensitisation of urban dwellers to enable comprehension of policies. Participatory strategies and governments’ commitment towards solid waste management should be paramount. Due to rapid changes in urban areas, periodic studies on content and context inferences such as solid waste collection practices and participation of actors in the informal settlements are required to dispel the practice of homogenising policies in order to enhance relevancy and suitability.
10 Jayathilake, Nilanthi; Aheeyar, Mohamed; Drechsel, Pay; Bucatariu, C. 2023. Quantitative analysis of food waste from wholesale to households in Colombo, Sri Lanka. Rome, Italy: FAO; Colombo, Sri Lanka: International Water Management Institute (IWMI). 43p. [doi: https://doi.org/10.4060/cb7810en]
Food waste ; Wholesale markets ; Households ; Quantitative analysis ; Waste management ; Food service ; Food losses ; Waste reduction ; Urban wastes ; Solid wastes ; Waste collection ; Landfills ; Recycling ; Policies ; Strategies ; Feeds ; Local authorities ; Municipal governments ; Social impact ; Environmental impact ; Sustainable Development Goals ; Case studies / Sri Lanka / Western Province / Colombo / Karadiyana / Kerawalapitiya / Kaduwela
(Location: IWMI HQ Call no: e-copy only Record No: H052087)
(2.03 MB) (2.03 MB)
Currently, in Sri Lanka, strategies to address FW prevention and reduction are being considered by different state and non-state stakeholders. However, in the current scenario, solutions for FW are mostly addressing (bio-)waste management.
Quantifying FW is of paramount importance in understanding the magnitude and socio-economic as well as environmental impacts of the problem. A good understanding of the availability and quality of FW data is a prerequisite for tracking progress on reduction targets, analyzing environmental impacts, and exploring mitigation strategies for FLW (Xue et al., 2019). FW quantification aims at creating a robust evidence base for developing strategies, action plans, and policies towards FW prevention, reduction, and management as well as guide prioritization of actions, evaluation of solutions, and monitoring progress (CEC, 2019).
Quantifying FW is of paramount importance in understanding the magnitude and socio-economic as well as environmental impacts of the problem. A good understanding of the availability and quality of FW data is a prerequisite for tracking progress on reduction targets, analyzing environmental impacts, and exploring mitigation strategies for FLW (Xue et al., 2019). FW quantification aims at creating a robust evidence base for developing strategies, action plans, and policies towards FW prevention, reduction, and management as well as guide prioritization of actions, evaluation of solutions, and monitoring progress (CEC, 2019).
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