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Greywater reuse for toilet flushing in high-density urban buildings in South Africa: A pilot study
Expanded Title:The broad concepts of greywater reuse for toilet flushing, and potential beneficiaries’ attitudes towards adopting greywater reuse for toilet flushing as one way of preserving/improving the environmental, are laudable. However, the experiences garnered from this study show that implementing greywater reuse for toilet flushing in South African high density urban buildings already supplied with municipal potable water, must be approached carefully. Implementation of greywater reuse systems for toilet flushing should only proceed after a rigorous evaluation and conclusion on several critical issues including: the availability of regulations or guidelines to which the reuse system would be accountable; consideration (on the part of both the implementing agency and beneficiaries) of the trade-offs between implementing low-technology, low-cost, high maintenance but minimum skill required, and low greywater quality reuse systems versus other greywater reuse system permutations; employing accredited greywater reuse systems; targeting the most appropriate end users i.e. young people and non-residential buildings; achieving economic viability based on a maximum payback period of 8 years; and the need for regular beneficiary awareness and engagement operations. A cursory evaluation of the above issues would likely result in the failure of such systems.
Date Published:01/01/2012
Document Type:Research Report
Document Subjects:Wastewater Management - Sewers, Sanitation - Waterborne sanitation
Document Format:Report
Document File Type:pdf
Research Report Type:Standard
WRC Report No:1821/1/11
ISBN No:978-1-4312-0213-3
Authors:Ilemobade AA; Olanrewaju OO; Griffioen ML
Project No:K5/1821
Organizations:School of Civil & Environmental Engineering, University of the Witwatersrand; Department of Civil Engineering Science, University of Johannesburg
Document Size:9 261 KB
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