On the free-settling test for estimating activated sludge floc density

D. J. Lee; G. W. Chen; Y. C. Liao; C. C. Hsieh

doi:10.1016/0043-1354(95)00229-4

On the free-settling test for estimating activated sludge floc density

D. J. Lee, G. W. Chen, Y. C. Liao, C. C. Hsieh

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

182 Citations (Scopus)

Abstract

The feasibility of using free-settling test for estimating activated sludge flee density was discussed in the present work. Some usually applied models or correlations, such as for the primary particle density, the drag coefficient, the correction factor for advection flow through the flee and the estimation for flee permeability, are examined. The results show that flee permeability depends strongly on the models or parameter sets applied. However, the effective flee density, and also the fractal dimension, is insensitive to the flee permeability estimation, but is strongly dependent on the drag coefficient expression employed. Possible valid experimental range is proposed.

Original language	English
Pages (from-to)	541-550
Journal	Water Research
Volume	30
Issue number	3
DOIs	https://doi.org/10.1016/0043-1354(95)00229-4
Publication status	Published - Mar 1996
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

UN SDGs

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

SDG 6 Clean Water and Sanitation

Research Keywords

Floc density
Fractal dimension
Free-settling test
Freeze/thaw treatment
Permeability

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10.1016/0043-1354(95)00229-4

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title = "On the free-settling test for estimating activated sludge floc density",

abstract = "The feasibility of using free-settling test for estimating activated sludge flee density was discussed in the present work. Some usually applied models or correlations, such as for the primary particle density, the drag coefficient, the correction factor for advection flow through the flee and the estimation for flee permeability, are examined. The results show that flee permeability depends strongly on the models or parameter sets applied. However, the effective flee density, and also the fractal dimension, is insensitive to the flee permeability estimation, but is strongly dependent on the drag coefficient expression employed. Possible valid experimental range is proposed.",

keywords = "Floc density, Fractal dimension, Free-settling test, Freeze/thaw treatment, Permeability",

author = "Lee, {D. J.} and Chen, {G. W.} and Liao, {Y. C.} and Hsieh, {C. C.}",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected]. ",

year = "1996",

month = mar,

doi = "10.1016/0043-1354(95)00229-4",

language = "English",

volume = "30",

pages = "541--550",

journal = "Water Research",

issn = "0043-1354",

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TY - JOUR

T1 - On the free-settling test for estimating activated sludge floc density

AU - Lee, D. J.

AU - Chen, G. W.

AU - Liao, Y. C.

AU - Hsieh, C. C.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 1996/3

Y1 - 1996/3

N2 - The feasibility of using free-settling test for estimating activated sludge flee density was discussed in the present work. Some usually applied models or correlations, such as for the primary particle density, the drag coefficient, the correction factor for advection flow through the flee and the estimation for flee permeability, are examined. The results show that flee permeability depends strongly on the models or parameter sets applied. However, the effective flee density, and also the fractal dimension, is insensitive to the flee permeability estimation, but is strongly dependent on the drag coefficient expression employed. Possible valid experimental range is proposed.

AB - The feasibility of using free-settling test for estimating activated sludge flee density was discussed in the present work. Some usually applied models or correlations, such as for the primary particle density, the drag coefficient, the correction factor for advection flow through the flee and the estimation for flee permeability, are examined. The results show that flee permeability depends strongly on the models or parameter sets applied. However, the effective flee density, and also the fractal dimension, is insensitive to the flee permeability estimation, but is strongly dependent on the drag coefficient expression employed. Possible valid experimental range is proposed.

KW - Floc density

KW - Fractal dimension

KW - Free-settling test

KW - Freeze/thaw treatment

KW - Permeability

UR - http://www.scopus.com/inward/record.url?scp=0030030875&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0030030875&origin=recordpage

U2 - 10.1016/0043-1354(95)00229-4

DO - 10.1016/0043-1354(95)00229-4

M3 - RGC 21 - Publication in refereed journal

SN - 0043-1354

VL - 30

SP - 541

EP - 550

JO - Water Research

JF - Water Research

IS - 3

ER -

On the free-settling test for estimating activated sludge floc density

Abstract

Bibliographical note

UN SDGs

Research Keywords

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