about us | careers | terms & conditions | intranet | extranet | sitemap | contact us
   
Skip Navigation Links
Home
Skip Navigation Links
Knowledge Hub
Skip Navigation Links
Research
Skip Navigation Links
Resources & Tools
Skip Navigation Links
Learning
Skip Navigation Links
Events
Skip Navigation Links
News & Media
Skip Navigation Links
FET Water
Skip Navigation Links
SCM
Login | Register
Go Search
     
How fast do pit toilets fill up?
Expanded Title:Disposal of pit latrine sludge has become a massive problem for some municipalities and, with a large number of pits in South Africa anticipated to reach capacity soon, is going to become an even greater difficulty. Disposal of dense pit sludge at waste water treatment works has been found to quickly overload the works in addition to being counterproductive in a number of respects. The policy of the South African government stresses the value of human excreta as a resource although utilisation must be done within strict parameters due to the hazards of contamination. A number of possibilities exist for utilising faecal sludge beneficially. Data provided by Water Services Authorities indicates that most pits are filling in five to nine years. This suggests that of the more than a million VIPs that have been built in the past decade many will soon reach capacity. Studies of pit filling rates across a number of communities indicate that pits generally fill at a rate of 40 litres per capita annum, with 60 litres per capita annum providing a safe margin for planning pit design and emptying programmes. If rubbish is kept out of pits the filling rate will be reduced significantly.
Date Published:01/07/2012
Document Type:Research Report
Document Subjects:Sanitation - On site sanitation, Sanitation - Hygiene
Document Format:Report
Document File Type:pdf
Research Report Type:Technical
WRC Report No:1745/2/12
ISBN No:978-1-4312-0292-8
ISBN Set No:978-1-4312-0294-2
Authors:Still DA; Foxon KM
Project No:K5/1745
Originator:WRC
Organizations:Partners in Development; Pollution research group University of KwaZulu-Natal
Document Size:1 190 KB
Related Documents:Understanding sludge accumulation in VIPs
Copyright 2016 - Water Research Commission Designed By: Ceenex