Fouling in gravity driven Point-of-Use drinking water treatment systems

C. Chawla; A. Zwijnenburg; A.J.B. Kemperman; K. Nijmeijer

doi:10.1016/j.cej.2017.02.120

Fouling in gravity driven Point-of-Use drinking water treatment systems

C. Chawla, A. Zwijnenburg, A.J.B. Kemperman^*, K. Nijmeijer

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

This paper describes fouling in simulated Point-of-Use (PoU) systems based on low pressure hollow fiber ultrafiltration membranes. Various operational configurations such as recirculation of feed, discontinuous vs. continuous filtration, and inside/out vs. outside/in were compared to study their effects on fouling and permeate production. Flux values stabilized around 2 L/m2 h for gravity driven (100 mbar) ultrafiltration. Intermittent operation resulted in lower overall hydraulic resistances compared to continuously operated systems. This was due to the low organic loading and relaxation of the fouling layer during periods of standstill. In most experiments the fouling layer mainly consisted of diatoms, inorganic particles and few microbial clusters. The PoU systems investigated can be operated for longer duration without the need for strong chemical cleaning.

Original language	English
Pages (from-to)	89-97
Number of pages	9
Journal	Chemical Engineering Journal
Volume	319
DOIs	https://doi.org/10.1016/j.cej.2017.02.120
Publication status	Published - 24 Feb 2017

Keywords

Point-of-Use (PoU) systems
Ultrafiltration
Hollow fiber membranes
Biofouling
Intermittent operation

UN SDGs

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

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title = "Fouling in gravity driven Point-of-Use drinking water treatment systems",

abstract = "This paper describes fouling in simulated Point-of-Use (PoU) systems based on low pressure hollow fiber ultrafiltration membranes. Various operational configurations such as recirculation of feed, discontinuous vs. continuous filtration, and inside/out vs. outside/in were compared to study their effects on fouling and permeate production. Flux values stabilized around 2 L/m2 h for gravity driven (100 mbar) ultrafiltration. Intermittent operation resulted in lower overall hydraulic resistances compared to continuously operated systems. This was due to the low organic loading and relaxation of the fouling layer during periods of standstill. In most experiments the fouling layer mainly consisted of diatoms, inorganic particles and few microbial clusters. The PoU systems investigated can be operated for longer duration without the need for strong chemical cleaning.",

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author = "C. Chawla and A. Zwijnenburg and A.J.B. Kemperman and K. Nijmeijer",

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doi = "10.1016/j.cej.2017.02.120",

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T1 - Fouling in gravity driven Point-of-Use drinking water treatment systems

AU - Chawla, C.

AU - Zwijnenburg, A.

AU - Kemperman, A.J.B.

AU - Nijmeijer, K.

PY - 2017/2/24

Y1 - 2017/2/24

N2 - This paper describes fouling in simulated Point-of-Use (PoU) systems based on low pressure hollow fiber ultrafiltration membranes. Various operational configurations such as recirculation of feed, discontinuous vs. continuous filtration, and inside/out vs. outside/in were compared to study their effects on fouling and permeate production. Flux values stabilized around 2 L/m2 h for gravity driven (100 mbar) ultrafiltration. Intermittent operation resulted in lower overall hydraulic resistances compared to continuously operated systems. This was due to the low organic loading and relaxation of the fouling layer during periods of standstill. In most experiments the fouling layer mainly consisted of diatoms, inorganic particles and few microbial clusters. The PoU systems investigated can be operated for longer duration without the need for strong chemical cleaning.

AB - This paper describes fouling in simulated Point-of-Use (PoU) systems based on low pressure hollow fiber ultrafiltration membranes. Various operational configurations such as recirculation of feed, discontinuous vs. continuous filtration, and inside/out vs. outside/in were compared to study their effects on fouling and permeate production. Flux values stabilized around 2 L/m2 h for gravity driven (100 mbar) ultrafiltration. Intermittent operation resulted in lower overall hydraulic resistances compared to continuously operated systems. This was due to the low organic loading and relaxation of the fouling layer during periods of standstill. In most experiments the fouling layer mainly consisted of diatoms, inorganic particles and few microbial clusters. The PoU systems investigated can be operated for longer duration without the need for strong chemical cleaning.

KW - Point-of-Use (PoU) systems

KW - Ultrafiltration

KW - Hollow fiber membranes

KW - Biofouling

KW - Intermittent operation

U2 - 10.1016/j.cej.2017.02.120

DO - 10.1016/j.cej.2017.02.120

M3 - Article

SN - 1385-8947

VL - 319

SP - 89

EP - 97

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

ER -

Fouling in gravity driven Point-of-Use drinking water treatment systems

Abstract

Keywords

UN SDGs

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