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Quality of harvested rainwater and application of point of use
Expanded Title:The main aim of this project was to determine the microbiological and chemical quality of harvested rainwater and people's perceptions on the use of rainwater. In addition this study was aimed at evaluating options for treatment of the collected rainwater. First the microbiological and chemical quality of rainwater collected in existing DRWH tanks was determined. Rainwater samples were collected from domestic rainwater harvesting tanks (DRWH) in a sustainable housing development in Kleinmond, South Africa. Water samples were collected on eight occasions from 29 tanks during the period of March to August 2012. The chemical and microbial parameters were compared to drinking water standards stipulated by the South African and Australian Quality Guidelines. A survey of users perceptions on rainwater harvesting was conducted. The social research project was aimed at developing a better understanding of public perceptions, including the degree of acceptance of DRWH, and the way in which the harvested rainwater is utilised. More specifically, quantitative and qualitative data were collected in order to describe the following: (1) the condition of the tank; (2) the users’ knowledge of the DRWH system, including its operation and maintenance; (3) whether the user would be willing to pay for repairs (if required); (4) perceived benefits and risks associated with DRWH; (5) level of satisfaction with DRWH; (6) and views on municipal water. In addition, demographic data on the respondents were gathered, viz. gender, age, highest level of education, household size and employment status, in order to provide a socio-economic background description of the study population. Finally, different point of use treatment systems (mainly filtration and solar pasteurization systems) were evaluated for their effectiveness in treating the harvested rainwater to produce water that meets drinking water quality standards.
Date Published:01/09/2014
Document Type:Research Report
Document Subjects:Agricultural Water - Small holder irrigation, R & D - Methodology
Document Keywords:Technology
Document Format:Report
Document File Type:pdf
Research Report Type:Technical
WRC Report No:TT 603/14
ISBN No:9781431205639
Authors:Dobrowksy PH; van Deventer A; Lombard M; De Kwaadsteniet M; Khan S; Cloete TE
Project No:K5/2124
Originator:WRC
Organizations:Stellenbosch University; Water Research Commission
Document Size:4 118 KB
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