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Recovering nutrients, water and energy from domestic waste streams, including wastewater and faecal sludge, is slowly gaining momentum in low-income countries. Resource recovery and reuse (RRR) offers value beyond environmental benefits through cost recovery. An expected game changer in sanitatio...


Rao, Krishna C.Otoo, MiriamDrechsel, PayHanjra, Munir A.[Resource recovery and reuse as an incentive for a more viable sanitation service chain]Resource recovery and reuse as an incentive for a more viable sanitation service chain

To assess the efficiency of seven treatments including biochars produced from dried faecal matter and manures as stabilizing agents of cadmium (Cd)-spiked soils, lettuce was grown in glasshouse on two contrasting soils. The soils used were moderately fertile silty loam and less fertile sandy loam...


Woldetsadik, D.Drechsel, PayKeraita, Bernard N.Marschner, B.Itanna, F.Gebrekidan, H.[Effects of biochar and alkaline amendments on cadmium immobilization, selected nutrient and cadmium concentrations of lettuce (Lactuca sativa) in two contrasting soils]Effects of biochar and alkaline amendments on cadmium immobilization, selected nutrient and cadmium concentrations of lettuce (Lactuca sativa) in two contrasting soils

Fecal sludge (FS) contains significant amounts of plant nutrients and organic matter although it also contains pathogens. Therefore, FS can be used as fertilizer after proper sanitization. This study was designed to test dried fecal sludge (DFS)-based pellet fertilizers on maize cultivation. The ...


Pradhan, Surendra K.Nikiema, JosianeCofie, Olufunke O.Olufunke, O.Drechsel, Pay[Fecal sludge-derived pellet fertilizer in maize cultivation]Fecal sludge-derived pellet fertilizer in maize cultivation

Motivation: Proper management of fecal sludge has significant positive health and environmental externalities. Most research on managing onsite sanitation so far either simulates the costs of, or the welfare effects from, managing sludge in situ in pit latrines. Thus, designing management strateg...


Balasubramanya, SoumyaEvans, B.Hardy, R.Ahmed, R.Habib, A.Asad, N.S.M.Rahman, M.Hasan, H.Dey, D.Fletcher, J.Camargo-Valero, M.A.[Towards sustainable sanitation management: Establishing the costs and willingness to pay for emptying and transporting sludge in rural districts with high rates of access to latrines]Towards sustainable sanitation management: Establishing the costs and willingness to pay for emptying and transporting sludge in rural districts with high rates of access to latrines

This study applied a combined analytical hierarchy process (AHP) and goal programming (GP) model to assist decision makers in identifying and prioritizing key investment climate (IC) indicators for waste recycling and reuse enterprises in developing countries. Taking a sector based perspective, k...


Gebrezgabher, Solomie A.Taron, A.Amewu, Sena[Investment climate indicators for waste reuse enterprises in developing countries: application of analytical hierarchy process and goal programming model]Investment climate indicators for waste reuse enterprises in developing countries: application of analytical hierarchy process and goal programming model

The study was carried out to assess the ef cacy of a standard Bio l toilet digester with regard to its ef uentqualityandtoevaluatetheperformanceofnewef uentpolishingoptionsbeingdeveloped by Bio lCom. In uent and ef uent were collected from 18 standard Bio l digesters connected to full- ush toilet...


Amoah, PhilipNartey, E.G.Schrecongost, A.[Performance evaluation of bio l toilet waste digester technologies in Ghana: the ef cacy of ef uent treatment options]Performance evaluation of bio l toilet waste digester technologies in Ghana: the ef cacy of ef uent treatment options

Biogas (anaerobic digestion) technology is one of the most viable renewable energy technologies today. However, its economic efficiency depends on the investment costs, costs of operating the biogas plant and optimum methane production. Likewise the profit level also rests on its use directly for...


Mohammed, M.Egyir, I.S.Donkor, A.K.Amoah, PhilipNyarko, S.Boateng, K.K.Ziwu, C.[Feasibility study for biogas integration into waste treatment plants in Ghana]Feasibility study for biogas integration into waste treatment plants in Ghana

Co-composted dewatered faecal sludge (FS) with organic fractions of municipal solid waste (MSW) has a high potential to be used as an agricultural resource in Sri Lanka. In addition to options for cost recovery in waste management, closing the nutrient and carbon cycles between urban and rural ar...


Grau, FelixDrechsel, NikitaHaering, V.Trautz, D.Weerakkody, W.J.S.K.Drechsel, PayMarschner, B.Dissanayake, D.M.P.S.Sinnathamby, V.[Impact of fecal sludge and municipal solid waste co-compost on crop growth of Raphanus Sativus L. and Capsicum Anuum L. under stress conditions]Impact of fecal sludge and municipal solid waste co-compost on crop growth of Raphanus Sativus L. and Capsicum Anuum L. under stress conditions

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