Potential and limitations of alum or zeolite addition to improve the performance of a submerged membrane bioreactor

J. C. Lee; J. S. Kim; I. J. Kang; M. H. Cho; P. K. Park; C. H. Lee

doi:10.2166/wst.2001.0667

Potential and limitations of alum or zeolite addition to improve the performance of a submerged membrane bioreactor

J. C. Lee, J. S. Kim, I. J. Kang, M. H. Cho, P. K. Park, C. H. Lee

Division of Environmental Engineering

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

106 Citations (Scopus)

Abstract

In this study, alum and natural zeolite were added to a submerged membrane bioreactor (MBR) not only to reduce membrane fouling but also to increase the removal of nitrogen and phosphorus. Alum addition reduced significantly the rising rate of suction pressure and also resulted in stable and better COD removal. Although phosphorus removal was more than 90% by chemical precipitation, nitrification inhibition was observed. With the addition of natural zeolite, membrane permeability was greatly enhanced by the formation of rigid floc that had lower specific resistance than that of the control activated sludge floc. In particular, the nitrification efficiency was over 95% even at N-shock loading due to the ion-exchange capacity of zeolite. The mechanisms for improved membrane permeability through alum or zeolite addition were discussed in detail.

Original language	English
Pages (from-to)	59-66
Number of pages	8
Journal	Water Science and Technology
Volume	43
Issue number	11
DOIs	https://doi.org/10.2166/wst.2001.0667
Publication status	Published - 2001

All Science Journal Classification (ASJC) codes

Environmental Engineering
Water Science and Technology

Access to Document

10.2166/wst.2001.0667

Cite this

@article{3ced23236f16429883149e56777db83a,

title = "Potential and limitations of alum or zeolite addition to improve the performance of a submerged membrane bioreactor",

abstract = "In this study, alum and natural zeolite were added to a submerged membrane bioreactor (MBR) not only to reduce membrane fouling but also to increase the removal of nitrogen and phosphorus. Alum addition reduced significantly the rising rate of suction pressure and also resulted in stable and better COD removal. Although phosphorus removal was more than 90% by chemical precipitation, nitrification inhibition was observed. With the addition of natural zeolite, membrane permeability was greatly enhanced by the formation of rigid floc that had lower specific resistance than that of the control activated sludge floc. In particular, the nitrification efficiency was over 95% even at N-shock loading due to the ion-exchange capacity of zeolite. The mechanisms for improved membrane permeability through alum or zeolite addition were discussed in detail.",

author = "Lee, {J. C.} and Kim, {J. S.} and Kang, {I. J.} and Cho, {M. H.} and Park, {P. K.} and Lee, {C. H.}",

year = "2001",

doi = "10.2166/wst.2001.0667",

language = "English",

volume = "43",

pages = "59--66",

journal = "Water Science and Technology",

issn = "0273-1223",

publisher = "IWA Publishing",

number = "11",

}

TY - JOUR

T1 - Potential and limitations of alum or zeolite addition to improve the performance of a submerged membrane bioreactor

AU - Lee, J. C.

AU - Kim, J. S.

AU - Kang, I. J.

AU - Cho, M. H.

AU - Park, P. K.

AU - Lee, C. H.

PY - 2001

Y1 - 2001

N2 - In this study, alum and natural zeolite were added to a submerged membrane bioreactor (MBR) not only to reduce membrane fouling but also to increase the removal of nitrogen and phosphorus. Alum addition reduced significantly the rising rate of suction pressure and also resulted in stable and better COD removal. Although phosphorus removal was more than 90% by chemical precipitation, nitrification inhibition was observed. With the addition of natural zeolite, membrane permeability was greatly enhanced by the formation of rigid floc that had lower specific resistance than that of the control activated sludge floc. In particular, the nitrification efficiency was over 95% even at N-shock loading due to the ion-exchange capacity of zeolite. The mechanisms for improved membrane permeability through alum or zeolite addition were discussed in detail.

AB - In this study, alum and natural zeolite were added to a submerged membrane bioreactor (MBR) not only to reduce membrane fouling but also to increase the removal of nitrogen and phosphorus. Alum addition reduced significantly the rising rate of suction pressure and also resulted in stable and better COD removal. Although phosphorus removal was more than 90% by chemical precipitation, nitrification inhibition was observed. With the addition of natural zeolite, membrane permeability was greatly enhanced by the formation of rigid floc that had lower specific resistance than that of the control activated sludge floc. In particular, the nitrification efficiency was over 95% even at N-shock loading due to the ion-exchange capacity of zeolite. The mechanisms for improved membrane permeability through alum or zeolite addition were discussed in detail.

UR - http://www.scopus.com/inward/record.url?scp=0034748144&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034748144&partnerID=8YFLogxK

U2 - 10.2166/wst.2001.0667

DO - 10.2166/wst.2001.0667

M3 - Article

C2 - 11443987

AN - SCOPUS:0034748144

SN - 0273-1223

VL - 43

SP - 59

EP - 66

JO - Water Science and Technology

JF - Water Science and Technology

IS - 11

ER -

Potential and limitations of alum or zeolite addition to improve the performance of a submerged membrane bioreactor

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this