Effect of phosphate availability on biofilm formation in cooling towers.
AuthorsPinel, Ingrid S M
Kim, Lan Hee
Proença Borges, Vitor R
Farhat, Nadia M
Witkamp, Geert Jan
van Loosdrecht, Mark C M
Vrouwenvelder, Johannes S.
KAUST DepartmentDivision of Biological and Environmental Science and Engineering (BESE), Water Desalination and Reuse Center (WDRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
Biological and Environmental Sciences and Engineering (BESE) Division
Environmental Science and Engineering Program
Water Desalination and Reuse Research Center (WDRC)
Online Publication Date2020-09-04
Print Publication Date2020-08-08
Permanent link to this recordhttp://hdl.handle.net/10754/665041
MetadataShow full item record
AbstractPhosphate limitation has been suggested as a preventive method against biofilms. P-limited feed water was studied as a preventive strategy against biofouling in cooling towers (CTs). Three pilot-scale open recirculating CTs were operated in parallel for five weeks. RO permeate was fed to the CTs (1) without supplementation (reference), (2) with supplementation by biodegradable carbon (P-limited) and (3) with supplementation of all nutrients (non-P-limited). The P-limited water contained ≤10 µg PO4 l-1. Investigating the CT-basins and coupons showed that P-limited water (1) did not prevent biofilm formation and (2) resulted in a higher volume of organic matter per unit of active biomass compared with the other CTs. Exposure to external conditions and cycle of concentration were likely factors that allowed a P concentration sufficient to cause extensive biofouling despite being the limiting compound. In conclusion, phosphate limitation in cooling water is not a suitable strategy for CT biofouling control.
CitationPinel, I. S. M., Kim, L. H., Proença Borges, V. R., Farhat, N. M., Witkamp, G.-J., van Loosdrecht, M. C. M., & Vrouwenvelder, J. S. (2020). Effect of phosphate availability on biofilm formation in cooling towers. Biofouling, 1–16. doi:10.1080/08927014.2020.1815011
SponsorsThe research reported in this manuscript would not have been possible without the support of Evides Industriewater B.V. and of the Water Desalination and Reuse Center (WDRC) and Central Utility Plant of KAUST.
PublisherInforma UK Limited
- Biofouling control by phosphorus limitation strongly depends on the assimilable organic carbon concentration.
- Authors: Javier L, Farhat NM, Desmond P, Linares RV, Bucs S, Kruithof JC, Vrouwenvelder JS
- Issue date: 2020 Sep 15
- Impact of organic nutrient load on biomass accumulation, feed channel pressure drop increase and permeate flux decline in membrane systems.
- Authors: Bucs SS, Valladares Linares R, van Loosdrecht MC, Kruithof JC, Vrouwenvelder JS
- Issue date: 2014 Dec 15
- Role of feed water biodegradable substrate concentration on biofouling: Biofilm characteristics, membrane performance and cleanability.
- Authors: Farhat NM, Javier L, Van Loosdrecht MCM, Kruithof JC, Vrouwenvelder JS
- Issue date: 2019 Mar 1
- Phosphate limitation to control biofouling.
- Authors: Vrouwenvelder JS, Beyer F, Dahmani K, Hasan N, Galjaard G, Kruithof JC, Van Loosdrecht MC
- Issue date: 2010 Jun
- Impact of biofilm accumulation on transmembrane and feed channel pressure drop: effects of crossflow velocity, feed spacer and biodegradable nutrient.
- Authors: Dreszer C, Flemming HC, Zwijnenburg A, Kruithof JC, Vrouwenvelder JS
- Issue date: 2014 Mar 1