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Investigation of the fate and transport of selected microorganisms in two simulated aquifer conditions in the laboratory and in the field
Expanded Title:The objective of this project was to investigate the fate of microorganisms under selected geohydrological conditions. The specific activities undertaken to achieve this include a literature study, evaluation of models that are suitable for South African groundwater conditions, investigation of the fate and transport of the microbes in the simulated aquifer conditions and in the laboratory, modelling transport of the microorganisms including simulation of the lab and field results. The results were a comprehensive literature review of international and local studies, models that are found to be suitable for South African groundwater conditions and the laboratory and fields study results. Detailed formulation of modelling requirements for fate and transport models were also completed and a prototype model was run using curve fitting algorithms and data. Other findings were that attachment and deposition kinetics of microbes are mainly determined by electrostatic interactions; and that increased temperatures are associated with a substantially higher adsorption rate to particulate matter in an aquifer while the decreasing temperatures play a role in detachment. Studies also showed that the transport and deposition behaviour differ between viruses and bacteria as they respond differently to specific chemical and physical factors.
Date Published:01/03/2013
Document Type:Research Report
Document Subjects:Water Resource Management/IWRM - Planning and development
Document Keywords:Water Quality
Document Format:Report
Document File Type:pdf
Research Report Type:Standard
WRC Report No:1905/1/13
ISBN No:978-1-4312-0378-9
Authors:du Preez M; van der Merwe M; le Roux W; Nel J; Meyer J; Murray K; Paramoer E; Steyl G; Velly C
Project Leader:du Preez M
Project No:K5/1905
Originator:WRC
Document Size:1 664 KB
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