Treatment Techniques in Water Harvesting

Brandon Reyneke, Monique Waso, Thando Ndlovu, Tanya Clements, Sehaam Khan, Wesaal Khan

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review


This chapter focuses on the current primary chemical and physical treatment methods utilized for harvested rainwater and reviews the potential of biological methods as treatment. The quality of harvested rainwater may be significantly improved if contaminants present on the roof-catchment area are prevented from entering the storage tank. Sedimentation may occur inside the rainwater harvesting tank, thereby decreasing water turbidity and potentially also improving the microbial and chemical quality of the harvested rainwater. Chemical disinfection is widely used during the final stages of water treatment, before drinking water is distributed to consumers, and has been employed in the treatment of harvested rainwater to improve its microbiological quality. The physical disinfection of water sources not only refers to the physical removal of microbial contaminants by filtration systems but also to the application of physical stressors that may be detrimental to microorganisms.

Original languageEnglish
Title of host publicationHandbook of Water Harvesting and Conservation
Subtitle of host publicationBasic Concepts and Fundamentals
Number of pages15
ISBN (Electronic)9781119478911
ISBN (Print)9781119478959
Publication statusPublished - 1 Jan 2021

ASJC Scopus subject areas

  • General Engineering
  • General Environmental Science


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