ABSTRACT
This chapter focuses on both streams in developing-country contexts, and the related challenges and opportunities for the productive and safe use of urban organic wastes and wastewater. Rapid urbanization in developing countries raises the challenges of urban food supplies and management of the waste flows from urban households and markets. The urban agriculture as a source of nutrient and organic matter is the organic fraction of municipal solid waste (MSW) and agro-industrial waste, and as a source of water and nutrients also domestic wastewater. The types of waste commonly used in urban farming: Solid waste, Horticultural and agricultural waste, Agro-industrial waste, Sludge and biosolids, Wastewater. Large amounts of municipal solid waste, human excreta and wastewater are produced, which mostly end up in non-engineered landfills or polluting the urban environment, especially in low-income countries where sanitation infrastructure is less developed. Human excreta are the final 'food waste' and a key component of domestic waste production.
