Your search found 10 records
1 Danso, G. K.; Otoo, Miriam; Duy Linh, N.; Madurangi, Ganesha. 2017. Households’ willingness-to-pay for fish product attributes and implications for market feasibility of wastewater-based aquaculture businesses in Hanoi, Vietnam. Resources, 6(2):1-22. [doi: https://doi.org/10.3390/resources6030030]
Aquaculture ; Household wastes ; Income ; Fish products ; Market research ; Feasibility studies ; Wastewater treatment ; Water use ; Freshwater ; Willingness to pay ; Socioeconomic environment ; Economic aspects ; Government agencies ; Cost benefit analysis / Vietnam / Hanoi
(Location: IWMI HQ Call no: e-copy only Record No: H048216)
(680 KB)
A choice experiment was used to assess households’ willingness-to-pay (WTP) for informational attributes (sources of water used to rear sh, and certi cation) of sh products in Hanoi, Vietnam. The study showed that households’ purchasing decisions are in uenced by their access to information of food product attributes and ascribe an economic value to it. The results indicated that households are willing to pay 51% (USD 1.11 per kg) above the prevailing market price of sh for information to know if wastewater is used to rear the sh they consume. Similarly, they are willing to pay 20% above the prevailing market price of sh (USD 0.43 per kg) to know if freshwater is used as a rearing medium. It is important to note that the increased marginal WTP is for information on whether the sh they consume is raised in wastewater over freshwater. This supports the notion of households’ concern over the safety of consuming wastewater-raised sh. Households are also willing to pay 65% (USD 1.42 per kg) above the prevailing market price for certi ed sh. Based on the cost of sh certi cation and WTP estimates, we found a total economic bene t of USD 172 million for the implementation of a wastewater-raised sh business model in Hanoi. The demand for wastewater-raised sh is likely to be affected by households’ perception of certi cation by a trusted government agency, source of water used to raise the sh, age, income and household size.
2 Danso, G. K.; Otoo, Miriam; Ekere, W.; Ddungu, S.; Madurangi, Ganesha. 2017. Market feasibility of faecal sludge and municipal solid waste-based compost as measured by farmers’ willingness-to-pay for product attributes: evidence from Kampala, Uganda. Resources, 6(2):1-17. [doi: https://doi.org/10.3390/resources6030031]
Faecal sludge ; Urban wastes ; Solid wastes ; Composts ; Willingness to pay ; Nutrients ; Resource recovery ; Cost recovery ; Organic fertilizers ; Farmer participation ; Economic aspects / Uganda / Kampala
(Location: IWMI HQ Call no: e-copy only Record No: H048217)
(260 KB)
There is a great potential to close the nutrient recycling loop, support a ‘circular economy’ and improve cost recovery within the waste sector and to create viable businesses via the conversion of waste to organic fertilizers. Successful commercialization of waste-based organic fertilizer businesses however largely depends on a sound market. We used a choice experiment to estimate farmers’ willingness-to-pay (WTP) for faecal sludge and municipal solid waste-based (FSM) compost in Kampala, Uganda and considered three attributes—fortification, pelletization and certification. Our results reveal that farmers are willing to pay for FSM compost and place a higher value on a ‘certified’ compost product. They are willing to pay US $0.4 per kg above the current market price for a similar certified product, which is 67 times higher than the cost of providing the attribute. Farmers are willing to pay US $0.127 per kg for ‘pelletized’ FSM compost, which is lower (0.57 times) than the cost of providing the attribute. On the other hand, farmers require US $0.089 per kg as a compensation to use ‘fortified’ FSM compost. We suggest that future FSM compost businesses focus on a ‘certified and pelletized’ FSM product as this product type has the highest production cost–WTP differential and for which future businesses can capture the highest percentage of the consumer surplus. The demand for FSM compost indicates the benefits that can accrue to farmers, businesses and the environment from the recycling of organic waste for agriculture.
3 Drechsel, Pay; Danso, G. K.; Hanjra, Munir A. 2018. Phosphorus recovery from wastewater at scale - Business Model 16. In Otoo, Miriam; Drechsel, Pay (Eds.). Resource recovery from waste: business models for energy, nutrient and water reuse in low- and middle-income countries. Oxon, UK: Routledge - Earthscan. pp.538-546.
Resource recovery ; Phosphorus ; Wastewater ; Wastewater treatment ; Sewage ; Business models ; Supply chain ; Risk reduction ; Health hazards ; Environmental impact assessment
(Location: IWMI HQ Call no: IWMI Record No: H048675)
(932 KB)
4 Drechsel, Pay; Danso, G. K.; Hanjra, Munir A. 2018. Viability gap funding (As Samra, Jordan) - Case Study. In Otoo, Miriam; Drechsel, Pay (Eds.). Resource recovery from waste: business models for energy, nutrient and water reuse in low- and middle-income countries. Oxon, UK: Routledge - Earthscan. pp.642-655.
Wastewater treatment ; Hydropower ; Biogas ; Carbon dioxide ; Emission reduction ; Market economies ; Business models ; Supply chain ; Socioeconomic environment ; Environmental impact ; Case studies / Jordan / Amman
(Location: IWMI HQ Call no: IWMI Record No: H048684)
(1.19 MB)
5 Danso, G. K.; Hanjra, Munir A.; Drechsel, Pay. 2018. Fixed wastewater-freshwater swap (Mashhad Plain, Iran) - Case Study. In Otoo, Miriam; Drechsel, Pay (Eds.). Resource recovery from waste: business models for energy, nutrient and water reuse in low- and middle-income countries. Oxon, UK: Routledge - Earthscan. pp.670-678.
Wastewater treatment ; Freshwater ; Urban areas ; Water scarcity ; Water rights ; Business models ; Supply chain ; Case studies / Iran / Mashhad Plain
(Location: IWMI HQ Call no: IWMI Record No: H048686)
(1.12 MB)
6 Drechsel, Pay; Danso, G. K.; Hanjra, Munir A. 2018. Flexible wastewater-freshwater swap (Llobregat delta, Spain) - Case Study. In Otoo, Miriam; Drechsel, Pay (Eds.). Resource recovery from waste: business models for energy, nutrient and water reuse in low- and middle-income countries. Oxon, UK: Routledge - Earthscan. pp.679-690.
Wastewater treatment ; Freshwater ; Deltas ; Farmers ; Integrated management ; Water resources ; Water management ; Water supply ; Water reuse ; Business models ; Market economies ; Supply chain ; Case studies / Spain / Barcelona / Llobregat delta
(Location: IWMI HQ Call no: IWMI Record No: H048687)
(1.17 MB)
7 Drechsel, Pay; Danso, G. K.; Qadir, M. 2018. Growing opportunities for Mexico city to tap into the Tula aquifer (Mexico) - Case Study. In Otoo, Miriam; Drechsel, Pay (Eds.). Resource recovery from waste: business models for energy, nutrient and water reuse in low- and middle-income countries. Oxon, UK: Routledge - Earthscan. pp.698-709.
Wastewater treatment ; Wastewater irrigation ; Urban areas ; Aquifers ; Drinking water ; Water reuse ; Market economies ; Business models ; Supply chain ; Groundwater irrigation ; Groundwater recharge ; Socioeconomic environment ; Case studies / Mexico / Tula Aquifer / Mezquital Valley
(Location: IWMI HQ Call no: IWMI Record No: H048689)
(988 KB)
8 Danso, G. K.; Naidu, D. R.; Drechsel, Pay. 2018. Revival of Amani Doddakere tank (Bangalore, India) - Case Study. In Otoo, Miriam; Drechsel, Pay (Eds.). Resource recovery from waste: business models for energy, nutrient and water reuse in low- and middle-income countries. Oxon, UK: Routledge - Earthscan. pp.710-719.
Wastewater treatment ; Wastewater irrigation ; Domestic consumption ; Ecosystem services ; Urban areas ; Sewage ; Groundwater recharge ; Water storage ; Water resources ; Tanks ; Sewage ; Farmers ; Market economies ; Business models ; Supply chain ; Case studies / India / Banglore / Karnataka / Amani Doddakere
(Location: IWMI HQ Call no: IWMI Record No: H048690)
(1.05 MB)
9 Hanjra, Munir A.; Rao, Krishna C.; Danso, G. K.; Amerasinghe, Priyanie; Drechsel, Pay. 2018. Wastewater as a commodity driving change - Business Model 23. In Otoo, Miriam; Drechsel, Pay (Eds.). Resource recovery from waste: business models for energy, nutrient and water reuse in low- and middle-income countries. Oxon, UK: Routledge - Earthscan. pp.745-759.
Wastewater treatment ; Wastewater irrigation ; Domestic consumption ; Household wastes ; Business models ; Market economies ; Supply chain ; Environmental impact assessment ; Health hazards ; Risk reduction / Pakistan / India / Faisalabad / Gujarat
(Location: IWMI HQ Call no: IWMI Record No: H048693)
(1.16 MB)
10 Danso, G. K.; Drechsel, Pay; Cofie, Olufunke O. 2021. A guide to scaling Resource Recovery and Reuse (RRR) business innovations in Africa and Asia. Colombo, Sri Lanka: International Water Management Institute (IWMI). CGIAR Research Program on Water, Land and Ecosystems (WLE). 21p.
Resource recovery ; Reuse ; Scaling ; Business models ; Innovation ; Frameworks ; Waste management ; Public-private partnerships ; Assessment / Africa / Asia
(Location: IWMI HQ Call no: e-copy only Record No: H050802)
(6.78 MB)
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