Modeling of mixed liquor inorganic suspended solids and membrane flux at different ratio of SRT to HRT in a submerged membrane bioreactor

Zhao Bo Chen; Zhi Qiang Chen; Nan Qi Ren; Hong Cheng Wang; Shu Kai Nie; Min Hua Cui

doi:10.1016/j.apm.2011.05.043

Modeling of mixed liquor inorganic suspended solids and membrane flux at different ratio of SRT to HRT in a submerged membrane bioreactor

Zhao Bo Chen
, Zhi Qiang Chen
, Nan Qi Ren^*
, Hong Cheng Wang
, Shu Kai Nie
, Min Hua Cui

^*Corresponding author for this work

School of Environment

Harbin Engineering University
Harbin Institute of Technology

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

8 Scopus citations

Abstract

In order to investigate the influence of mixed liquor inorganic suspended solids (MLISS) on membrane flux at different ratio of sludge retention time (SRT) to hydraulic retention time (HRT) in a submerged membrane bioreactor (SMBR), a pilot scale test was conducted for 452days using traditional Chinese medicine (TCM) wastewater as influent. SRT/HRT was controlled at 150, 480 and 750, respectively. The experimental results showed that the average values of MLISS were 1271.9, 1664.5 and 6898.8mg/L at different SRT/HRT, respectively; MLISS were accumulated from 265.5g/h to 4912.93g/h, which indicated that SMBR could not steadily operate for a long period without sludge withdrawal. Sludge oxygen utilized rate (SOUR) decreased from 5.115 to 1.292mgO₂/(gVSSh) and volume oxygen utilized rate (VOUR) increased from 10.84 to 18.13mgO₂/(Lh). Model of membrane flux and MLISS were developed under different temperature and operational pressure by regressions, which were then satisfactorily employed to predict the trend of membrane flux during the experiment.

Original language	English
Pages (from-to)	173-182
Number of pages	10
Journal	Applied Mathematical Modelling
Volume	36
Issue number	1
DOIs	https://doi.org/10.1016/j.apm.2011.05.043
State	Published - Jan 2012

Keywords

Mathematical model
Membrane flux
Mixed liquor inorganic suspended solids
Submerged membrane bioreactor
Traditional Chinese medicine wastewater

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10.1016/j.apm.2011.05.043

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title = "Modeling of mixed liquor inorganic suspended solids and membrane flux at different ratio of SRT to HRT in a submerged membrane bioreactor",

abstract = "In order to investigate the influence of mixed liquor inorganic suspended solids (MLISS) on membrane flux at different ratio of sludge retention time (SRT) to hydraulic retention time (HRT) in a submerged membrane bioreactor (SMBR), a pilot scale test was conducted for 452days using traditional Chinese medicine (TCM) wastewater as influent. SRT/HRT was controlled at 150, 480 and 750, respectively. The experimental results showed that the average values of MLISS were 1271.9, 1664.5 and 6898.8mg/L at different SRT/HRT, respectively; MLISS were accumulated from 265.5g/h to 4912.93g/h, which indicated that SMBR could not steadily operate for a long period without sludge withdrawal. Sludge oxygen utilized rate (SOUR) decreased from 5.115 to 1.292mgO2/(gVSSh) and volume oxygen utilized rate (VOUR) increased from 10.84 to 18.13mgO2/(Lh). Model of membrane flux and MLISS were developed under different temperature and operational pressure by regressions, which were then satisfactorily employed to predict the trend of membrane flux during the experiment.",

keywords = "Mathematical model, Membrane flux, Mixed liquor inorganic suspended solids, Submerged membrane bioreactor, Traditional Chinese medicine wastewater",

author = "Chen, \{Zhao Bo\} and Chen, \{Zhi Qiang\} and Ren, \{Nan Qi\} and Wang, \{Hong Cheng\} and Nie, \{Shu Kai\} and Cui, \{Min Hua\}",

year = "2012",

month = jan,

doi = "10.1016/j.apm.2011.05.043",

language = "英语",

volume = "36",

pages = "173--182",

journal = "Applied Mathematical Modelling",

issn = "0307-904X",

publisher = "Elsevier Inc.",

number = "1",

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TY - JOUR

T1 - Modeling of mixed liquor inorganic suspended solids and membrane flux at different ratio of SRT to HRT in a submerged membrane bioreactor

AU - Chen, Zhao Bo

AU - Chen, Zhi Qiang

AU - Ren, Nan Qi

AU - Wang, Hong Cheng

AU - Nie, Shu Kai

AU - Cui, Min Hua

PY - 2012/1

Y1 - 2012/1

N2 - In order to investigate the influence of mixed liquor inorganic suspended solids (MLISS) on membrane flux at different ratio of sludge retention time (SRT) to hydraulic retention time (HRT) in a submerged membrane bioreactor (SMBR), a pilot scale test was conducted for 452days using traditional Chinese medicine (TCM) wastewater as influent. SRT/HRT was controlled at 150, 480 and 750, respectively. The experimental results showed that the average values of MLISS were 1271.9, 1664.5 and 6898.8mg/L at different SRT/HRT, respectively; MLISS were accumulated from 265.5g/h to 4912.93g/h, which indicated that SMBR could not steadily operate for a long period without sludge withdrawal. Sludge oxygen utilized rate (SOUR) decreased from 5.115 to 1.292mgO2/(gVSSh) and volume oxygen utilized rate (VOUR) increased from 10.84 to 18.13mgO2/(Lh). Model of membrane flux and MLISS were developed under different temperature and operational pressure by regressions, which were then satisfactorily employed to predict the trend of membrane flux during the experiment.

AB - In order to investigate the influence of mixed liquor inorganic suspended solids (MLISS) on membrane flux at different ratio of sludge retention time (SRT) to hydraulic retention time (HRT) in a submerged membrane bioreactor (SMBR), a pilot scale test was conducted for 452days using traditional Chinese medicine (TCM) wastewater as influent. SRT/HRT was controlled at 150, 480 and 750, respectively. The experimental results showed that the average values of MLISS were 1271.9, 1664.5 and 6898.8mg/L at different SRT/HRT, respectively; MLISS were accumulated from 265.5g/h to 4912.93g/h, which indicated that SMBR could not steadily operate for a long period without sludge withdrawal. Sludge oxygen utilized rate (SOUR) decreased from 5.115 to 1.292mgO2/(gVSSh) and volume oxygen utilized rate (VOUR) increased from 10.84 to 18.13mgO2/(Lh). Model of membrane flux and MLISS were developed under different temperature and operational pressure by regressions, which were then satisfactorily employed to predict the trend of membrane flux during the experiment.

KW - Mathematical model

KW - Membrane flux

KW - Mixed liquor inorganic suspended solids

KW - Submerged membrane bioreactor

KW - Traditional Chinese medicine wastewater

UR - https://www.scopus.com/pages/publications/80051815650

U2 - 10.1016/j.apm.2011.05.043

DO - 10.1016/j.apm.2011.05.043

M3 - 文章

AN - SCOPUS:80051815650

SN - 0307-904X

VL - 36

SP - 173

EP - 182

JO - Applied Mathematical Modelling

JF - Applied Mathematical Modelling

IS - 1

ER -

Modeling of mixed liquor inorganic suspended solids and membrane flux at different ratio of SRT to HRT in a submerged membrane bioreactor

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