Microbial Activity in Granular Activated Carbon Filters in Drinking Water Treatment
Microbial Activity in Granular Activated Carbon Filters in Drinking Water Treatment
Source : https://sense.nl/
Author : Aleksandra Knezev
Background
Water treatment is needed to produce drinking water from sources contaminated with pathogenic micro-organisms, anthropogenic chemicals and/or containing an elevated concentration of natural organic matter (NOM) and/or inorganic compounds impacting drinking water quality, both from a public health point of view and/or its aesthetic appreciation, e.g. colour, taste, odour and turbidity. In the Netherlands, water treatment aiming at the removal of such
constituents includes multiple barriers, e.g. coagulation/sedimentation, filtration, oxidation and disinfection. Granular activated carbon (GAC) filtration has become a main barrier in surface-water treatment for the removal of organic contaminants, but also removes NOM, including humic and fulvic acids and biodegradable compounds. This thesis describes investigations on microbiological processes in these GAC filters (GACFs). The general introduction
provides information about (i) the application of GAC filtration in water treatment, (ii), GAC characteristics, (iii) bacterial attachment and growth, (iv) microbial activity in GACFs, and (v) the objectives and aims of the studies described in this thesis.
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