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Sustainable sanitation technology options for urban slums

Paper ID Volume ID Publish Year Pages File Format Full-Text
14465 1223 2012 15 PDF Available
Title
Sustainable sanitation technology options for urban slums
Abstract

Poor sanitation in urban slums results in increased prevalence of diseases and pollution of the environment. Excreta, grey water and solid wastes are the major contributors to the pollution load into the slum environment and pose a risk to public health. The high rates of urbanization and population growth, poor accessibility and lack of legal status in urban slums make it difficult to improve their level of sanitation. New approaches may help to achieve the sanitation target of the Millennium Development Goal (MDG) 7; ensuring environmental sustainability. This paper reviews the characteristics of waste streams and the potential treatment processes and technologies that can be adopted and applied in urban slums in a sustainable way. Resource recovery oriented technologies minimise health risks and negative environmental impacts. In particular, there has been increasing recognition of the potential of anaerobic co-digestion for treatment of excreta and organic solid waste for energy recovery as an alternative to composting. Soil and sand filters have also been found suitable for removal of organic matter, pathogens, nutrients and micro-pollutants from grey water.

Keywords
Excreta; Grey water; Sanitation; Slums; Solid waste; Technology
First Page Preview
Sustainable sanitation technology options for urban slums
Publisher
Database: Elsevier - ScienceDirect
Journal: Biotechnology Advances - Volume 30, Issue 5, September–October 2012, Pages 964–978
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering