Biofouling potential of chemicals used for scale control in RO and NF membranes

The potential of 14 different antiscalants (AS) to promote biofouling was determined with the easily assimilable organic carbon (AOC) test and the Biomass Production Potential (BPP) test, respectively. The AOC concentrations of slow sand filtrate supplemented with 50 mg/l of AS ranged from 4 to 112...

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Bibliographic Details
Published in:Desalination 2000-12, Vol.132 (1), p.1-10
Main Authors: Vrouwenvelder, J.S., Manolarakis, S.A., Veenendaal, H.R., van der Kooij, D.
Format: Article
Language:English
Subjects:
Antiscalant
AOC
Applied sciences
Autopsy
Biofilm formation rate
Biofouling
Biomass production potential
Drinking water
Drinking water and swimming-pool water. Desalination
Exact sciences and technology
Membranes
Nanofiltration
Pollution
Reverse osmosis
Scaling
Water treatment and pollution
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Summary:The potential of 14 different antiscalants (AS) to promote biofouling was determined with the easily assimilable organic carbon (AOC) test and the Biomass Production Potential (BPP) test, respectively. The AOC concentrations of slow sand filtrate supplemented with 50 mg/l of AS ranged from 4 to 112 μg of C/l, and maximum concentrations of adenosinetriphosphate (ATP) from 7 to 380 ng/l, respectively. Concentrations of AOC and BPP were not related to the organic carbon content of the AS's tested. Biofilm Formation Rate (BFR) values of three selected AS's, as determined with the biofilm monitor at a concentration of 2.5 mg/l, were 245, 18.1 and
ISSN:0011-9164
1873-4464
DOI:10.1016/S0011-9164(00)00129-6