Co-composting of solid waste and fecal sludge for nutrient and organic matter recovery
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International Water Management Institute
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Biological treatment, composting, in particular, is a relatively simple, durable and inexpensive alternative for stabilizing and reducing biodegradable waste. Co-composting of different waste sources allows to enhance the compost nutrient value. In particular, integration of ‘biosolids’ from the sanitation sector as potential input material for co-composting would provide a solution for the much needed treatment of fecal sludge from on-site sanitation systems, and make use of its high nutrient content. This research paper elaborates in detail the main parameters that govern the co-composting process as well as factors that control the production of a safe and valuable quality compost. It further explains technological options to tailor the final product to crop and farmer needs.
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resource recovery, environmental effects, nutrients, solid wastes, recycling, composting, faecal coliforms, sewage sludge, urbanization, urban wastes, food wastes, waste management, developing countries, farmyard manure, excreta, soil organic matter, organic wastes, organic fertilizers, public health, health hazards, sanitation, moisture content, temperature, ph, microorganisms, aeration, pathogens, emission, livestock, heavy metals