The role of trees in the bioremediation of drinking water ? A research experiment in Nawakkaduwa, Kalpitiya

Kamal Melvani, Kanchana Chandrasekera, Rahul Mudannayake

Research output: Chapter in Book/Report/Conference proceedingConference Paper published in Proceedingspeer-review

Abstract

The Kalpitiya Peninsula is a low-lying sand peninsula located on the North West coast of Sri Lanka. Of special significance is the underlying Gyben-Herzberg lens of fresh water that is extensively pumped for irrigation and potable water supply. Ground water quality throughout the peninsula had been good until massive amounts of inorganic fertilizer and chemical pesticides began to be used in agriculture which increased ground water concentrations of nitrate, nitrite, chloride and potassium beyond WHO drinking water standards. There is seen a correlation between ground water quality and land use. The National Water Supply and Drainage Board (NWSDB) were thus compelled to abandon many wells constructed in the Kalpitiya peninsula since the water was contaminated with nitrates and nitrites. In 2004, they contracted with the Neo Synthesis Research Centre (NSRC) to conduct research on the bioremediation of the contaminants. Thus far the results are very encouraging.

Original languageEnglish
Title of host publicationSustainable Development of Water Resources, Water Supply and Environmental Sanitation
Subtitle of host publicationProceedings of the 32nd WEDC International Conference
Pages304-312
Number of pages9
Publication statusPublished - 2007
Externally publishedYes
Event2006 32nd WEDC International Conference: Sustainable Development of Water Resources, Water Supply and Environmental Sanitation - Colombo, Sri Lanka
Duration: 1 Nov 20061 Nov 2006

Publication series

NameSustainable Development of Water Resources, Water Supply and Environmental Sanitation: Proceedings of the 32nd WEDC International Conference

Conference

Conference2006 32nd WEDC International Conference: Sustainable Development of Water Resources, Water Supply and Environmental Sanitation
CountrySri Lanka
CityColombo
Period1/11/061/11/06

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