Accelerating pollutant release from mud bed by sand drains

C. J. Lai; J. M. Leu; H. C. Chan

Accelerating pollutant release from mud bed by sand drains

C. J. Lai, J. M. Leu, H. C. Chan

Department of Hydraulic and Ocean Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

It is proposed to use sand drain systems in a channel mud bed to accelerate the pollutants release rate of the mud bed, based on the fact that the hydraulic conductivity of mud in the horizontal is usually larger than that of the vertical. Experiments are conducted in model channel bed system to assess this concept. This model is filled with various mud depths and has different sand drain arrangements. Ammonium nitrogen (NH₄-N) and dissolved oxygen (DO) concentrations at the water body adjacent to the mud surface are measured. Experimental results show that the ammonium nitrogen concentration increases with the test time. It's release rate increases with intensity of the sand drains. Deployment of a sand drain system is proved to be useful in accelerating the releasing of mud- trapped pollutant.

Original language	English
Title of host publication	Brownfield Sites
Subtitle of host publication	Assessment, Rehabilitation and Development
Editors	C.A. Brebbia, D. Almorza, H. Klapperich
Publisher	WIT Press
Pages	507-514
Number of pages	8
ISBN (Print)	1853129186
Publication status	Published - 2002 Dec 1
Event	First International Conference on Brownfield Sites: Assessment,Rehabilitation and Development, BROWNFIELDS - Cadiz, Spain Duration: 2002 Sept 2 → 2002 Sept 4

Other

Other	First International Conference on Brownfield Sites: Assessment,Rehabilitation and Development, BROWNFIELDS
Country/Territory	Spain
City	Cadiz
Period	02-09-02 → 02-09-04

All Science Journal Classification (ASJC) codes

General Engineering

Cite this

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title = "Accelerating pollutant release from mud bed by sand drains",

abstract = "It is proposed to use sand drain systems in a channel mud bed to accelerate the pollutants release rate of the mud bed, based on the fact that the hydraulic conductivity of mud in the horizontal is usually larger than that of the vertical. Experiments are conducted in model channel bed system to assess this concept. This model is filled with various mud depths and has different sand drain arrangements. Ammonium nitrogen (NH4-N) and dissolved oxygen (DO) concentrations at the water body adjacent to the mud surface are measured. Experimental results show that the ammonium nitrogen concentration increases with the test time. It's release rate increases with intensity of the sand drains. Deployment of a sand drain system is proved to be useful in accelerating the releasing of mud- trapped pollutant.",

author = "Lai, {C. J.} and Leu, {J. M.} and Chan, {H. C.}",

year = "2002",

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editor = "C.A. Brebbia and D. Almorza and H. Klapperich",

booktitle = "Brownfield Sites",

publisher = "WIT Press",

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note = "First International Conference on Brownfield Sites: Assessment,Rehabilitation and Development, BROWNFIELDS ; Conference date: 02-09-2002 Through 04-09-2002",

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TY - GEN

T1 - Accelerating pollutant release from mud bed by sand drains

AU - Lai, C. J.

AU - Leu, J. M.

AU - Chan, H. C.

PY - 2002/12/1

Y1 - 2002/12/1

N2 - It is proposed to use sand drain systems in a channel mud bed to accelerate the pollutants release rate of the mud bed, based on the fact that the hydraulic conductivity of mud in the horizontal is usually larger than that of the vertical. Experiments are conducted in model channel bed system to assess this concept. This model is filled with various mud depths and has different sand drain arrangements. Ammonium nitrogen (NH4-N) and dissolved oxygen (DO) concentrations at the water body adjacent to the mud surface are measured. Experimental results show that the ammonium nitrogen concentration increases with the test time. It's release rate increases with intensity of the sand drains. Deployment of a sand drain system is proved to be useful in accelerating the releasing of mud- trapped pollutant.

AB - It is proposed to use sand drain systems in a channel mud bed to accelerate the pollutants release rate of the mud bed, based on the fact that the hydraulic conductivity of mud in the horizontal is usually larger than that of the vertical. Experiments are conducted in model channel bed system to assess this concept. This model is filled with various mud depths and has different sand drain arrangements. Ammonium nitrogen (NH4-N) and dissolved oxygen (DO) concentrations at the water body adjacent to the mud surface are measured. Experimental results show that the ammonium nitrogen concentration increases with the test time. It's release rate increases with intensity of the sand drains. Deployment of a sand drain system is proved to be useful in accelerating the releasing of mud- trapped pollutant.

UR - http://www.scopus.com/inward/record.url?scp=3543147189&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=3543147189&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:3543147189

SN - 1853129186

SP - 507

EP - 514

BT - Brownfield Sites

A2 - Brebbia, C.A.

A2 - Almorza, D.

A2 - Klapperich, H.

PB - WIT Press

T2 - First International Conference on Brownfield Sites: Assessment,Rehabilitation and Development, BROWNFIELDS

Y2 - 2 September 2002 through 4 September 2002

ER -

Accelerating pollutant release from mud bed by sand drains

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All Science Journal Classification (ASJC) codes

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