dc.contributor.author | Kogo, Kipkemboi Benjamin | |
dc.date.accessioned | 2013-03-20T07:02:28Z | |
dc.date.issued | 2009 | |
dc.identifier.citation | Master of Science in Environmental and Biosystems Engineering | en |
dc.identifier.uri | http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/14799 | |
dc.description.abstract | Biological waste management systems are increasingly being used in Kenya to treat domestic
and industrial effluent. These systems exist as conventional waste stabilization ponds or as
constructed wetlands. Waste stabilization ponds (WSPs) have been widely used in most parts of
the country for wastewater treatment. However, effluent discharges from some WSPs don’t meet
the BOD, COD and Faecal Coliform standards acceptable to NEMA, KEBS and WHO. In
addition, land required for WSPs is often large and unavailable. Hence, there is need for adoption
of other water treatment technologies to augment the WSPs. Constructed wetlands have been
used as a viable alternative to WSPs and have been used to a limited extent in Kenya.
Constructed wetlands (CWs) have been used as an environmentally friendly and sustainable
wastewater management technology. Unlike WSPs, CWs require less space and when well
designed significantly purify wastewater to acceptable WHO, NEMA and KEBS discharge
standards. CWs can significantly reduce the viruses and pathogenic bacteria in wastewater
through exposure to UV from sunlight.
This study aimed at evaluating alternative designs of waste stabilization ponds and constructed
wetlands systems for Kaputiei Housing Estate consisting of 2,000 low cost housing units. The
evaluation specifically focused on effectiveness and purification efficiencies of WSPs and CWs
in terms of BOD reduction and faecal coliform removal. As per the hybrid system design an
effluent BOD of 20 mg/l and 195 FC per 100ml would be achieved | en |
dc.description.sponsorship | University of Nairobi | en |
dc.language.iso | en | en |
dc.subject | wastewater, | en |
dc.subject | waste stabilization ponds, | en |
dc.subject | constructed wetlands, | en |
dc.subject | BOD, | en |
dc.subject | faecal coliforms, | en |
dc.subject | purification | en |
dc.title | Analysis of Alternative Waste Stabilization Ponds and Constructed Wetlands Systems for Kaputiei Housing Estate, Kisaju, Kajiado‐Kenya | en |
dc.type | Thesis | en |
local.publisher | School of engineering department of geospacial and space technology | en |