Evaluating the potential of biofilm control in water supply systems by removal of phosphorus from drinking water

Jãnis Rubulis; Tãlis Juhna

doi:10.2166/wst.2007.261

Evaluating the potential of biofilm control in water supply systems by removal of phosphorus from drinking water

Jãnis Rubulis^*
, Tãlis Juhna

^*Corresponding author for this work

Riga Technical University

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › Research › peer-review

20 Citations (Scopus)

Abstract

Effect of microbially available phosphorus (MAP) on biofilm development in drinking water systems was investigated at the pilot-scale experiments over 3 years. Completely mixed biofilm reactors Propella® (water detention time 24 h, flow rate 0.25 m s^-1, PVC pipe coupons) were used as water distribution network models. Four experimental runs were carried out with water containing different levels of phosphorus which was limiting nutrient for bacterial growth. Positive correlation between MAP in the inlet water and heterotrophic plate count (correlation coefficient 0.95) in biofilm, as well as for the total bacteria number (correlation coefficient 0.71), was observed. However, our experiments showed that removal of phosphorus down to very low levels (below detection limits of chemical method and MAP < 1 μg L^-1) was not an efficient strategy to eliminate bacterial regrowth and biofilm formation (<51,00,000 cells/cm²) in drinking water supply systems.

Original language	English
Title of host publication	Biofilm Systems VI
Editors	M.C.M. Loosdrecht, C. Picioreau
Pages	211-217
Number of pages	7
Edition	8-9
DOIs	https://doi.org/10.2166/wst.2007.261
Publication status	Published - 2007
Externally published	Yes

Publication series

Name	Water Science and Technology
Number	8-9
Volume	55
ISSN (Print)	0273-1223

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation

Keywords

Bacterial growth
Drinking water
Heterotrophic plate counts
Microbially available phosphorus
Total bacteria number

Access to Document

10.2166/wst.2007.261

Cite this

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title = "Evaluating the potential of biofilm control in water supply systems by removal of phosphorus from drinking water",

abstract = "Effect of microbially available phosphorus (MAP) on biofilm development in drinking water systems was investigated at the pilot-scale experiments over 3 years. Completely mixed biofilm reactors Propella{\textregistered} (water detention time 24 h, flow rate 0.25 m s-1, PVC pipe coupons) were used as water distribution network models. Four experimental runs were carried out with water containing different levels of phosphorus which was limiting nutrient for bacterial growth. Positive correlation between MAP in the inlet water and heterotrophic plate count (correlation coefficient 0.95) in biofilm, as well as for the total bacteria number (correlation coefficient 0.71), was observed. However, our experiments showed that removal of phosphorus down to very low levels (below detection limits of chemical method and MAP < 1 μg L-1) was not an efficient strategy to eliminate bacterial regrowth and biofilm formation (<51,00,000 cells/cm2) in drinking water supply systems.",

keywords = "Bacterial growth, Drinking water, Heterotrophic plate counts, Microbially available phosphorus, Total bacteria number",

author = "J{\~a}nis Rubulis and T{\~a}lis Juhna",

year = "2007",

doi = "10.2166/wst.2007.261",

language = "English",

isbn = "1843395932",

series = "Water Science and Technology",

number = "8-9",

pages = "211--217",

editor = "M.C.M. Loosdrecht and C. Picioreau",

booktitle = "Biofilm Systems VI",

edition = "8-9",

}

Evaluating the potential of biofilm control in water supply systems by removal of phosphorus from drinking water. / Rubulis, Jãnis; Juhna, Tãlis.
Biofilm Systems VI. ed. / M.C.M. Loosdrecht; C. Picioreau. 8-9. ed. 2007. p. 211-217 (Water Science and Technology; Vol. 55, No. 8-9).

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › Research › peer-review

TY - GEN

T1 - Evaluating the potential of biofilm control in water supply systems by removal of phosphorus from drinking water

AU - Rubulis, Jãnis

AU - Juhna, Tãlis

PY - 2007

Y1 - 2007

N2 - Effect of microbially available phosphorus (MAP) on biofilm development in drinking water systems was investigated at the pilot-scale experiments over 3 years. Completely mixed biofilm reactors Propella® (water detention time 24 h, flow rate 0.25 m s-1, PVC pipe coupons) were used as water distribution network models. Four experimental runs were carried out with water containing different levels of phosphorus which was limiting nutrient for bacterial growth. Positive correlation between MAP in the inlet water and heterotrophic plate count (correlation coefficient 0.95) in biofilm, as well as for the total bacteria number (correlation coefficient 0.71), was observed. However, our experiments showed that removal of phosphorus down to very low levels (below detection limits of chemical method and MAP < 1 μg L-1) was not an efficient strategy to eliminate bacterial regrowth and biofilm formation (<51,00,000 cells/cm2) in drinking water supply systems.

AB - Effect of microbially available phosphorus (MAP) on biofilm development in drinking water systems was investigated at the pilot-scale experiments over 3 years. Completely mixed biofilm reactors Propella® (water detention time 24 h, flow rate 0.25 m s-1, PVC pipe coupons) were used as water distribution network models. Four experimental runs were carried out with water containing different levels of phosphorus which was limiting nutrient for bacterial growth. Positive correlation between MAP in the inlet water and heterotrophic plate count (correlation coefficient 0.95) in biofilm, as well as for the total bacteria number (correlation coefficient 0.71), was observed. However, our experiments showed that removal of phosphorus down to very low levels (below detection limits of chemical method and MAP < 1 μg L-1) was not an efficient strategy to eliminate bacterial regrowth and biofilm formation (<51,00,000 cells/cm2) in drinking water supply systems.

KW - Bacterial growth

KW - Drinking water

KW - Heterotrophic plate counts

KW - Microbially available phosphorus

KW - Total bacteria number

UR - https://www.scopus.com/pages/publications/34249678312

U2 - 10.2166/wst.2007.261

DO - 10.2166/wst.2007.261

M3 - Conference paper

C2 - 17546989

AN - SCOPUS:34249678312

SN - 1843395932

SN - 9781843395935

T3 - Water Science and Technology

SP - 211

EP - 217

BT - Biofilm Systems VI

A2 - Loosdrecht, M.C.M.

A2 - Picioreau, C.

ER -

Evaluating the potential of biofilm control in water supply systems by removal of phosphorus from drinking water

Abstract

Publication series

UN SDGs

Keywords

Access to Document

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