Numerical optimization of membrane module design and operation for a full-scale submerged MBR by computational fluid dynamics

Mengmeng Liu; Min Yang; Meixue Chen; Dawei Yu; Jiaxi Zheng; Jiang Chang; Xiaoshuang Wang; Chunmiao Ji; Yuansong Wei

doi:10.1016/j.biortech.2018.08.089

Numerical optimization of membrane module design and operation for a full-scale submerged MBR by computational fluid dynamics

Mengmeng Liu
, Min Yang
, Meixue Chen
, Dawei Yu
, Jiaxi Zheng
, Jiang Chang
, Xiaoshuang Wang
, Chunmiao Ji
, Yuansong Wei^*

^*Corresponding author for this work

CAS - Research Center for Eco-Environmental Sciences
University of Chinese Academy of Sciences
Changsha University of Science and Technology
Beijing Drainage Group Co., Ltd

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

32 Scopus citations

Abstract

The hydrodynamics in the membrane module of a full-scale sMBR at 500 m³/d was simulated by computational fluid dynamics (CFD) in this study. Several key indexes, including membrane distance (d), aeration design, height of gas-liquid dispersion h_m, and freeboard height h_f and operational conditions, including SAD_p and liquid viscosity, were optimized through investigating their impacts on water velocity distribution and membrane shear stress. The CFD model was validated by comparing the simulated trace element RTD curves with experimental results. The optimal design and operational parameters for the full scale sMBR are as following: membrane distance d = 35 mm, air diffusers parallel located 75–100 mm under the bottom of the membrane module, the free board height h_f adjusted to 400 mm, and the SAD_p recommended as 20 in the full-scale MBR studied.

Original language	English
Pages (from-to)	300-308
Number of pages	9
Journal	Bioresource Technology
Volume	269
DOIs	https://doi.org/10.1016/j.biortech.2018.08.089
State	Published - Dec 2018
Externally published	Yes

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Aeration
CFD simulation
MBR
RTD
Shear stress

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10.1016/j.biortech.2018.08.089

Cite this

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title = "Numerical optimization of membrane module design and operation for a full-scale submerged MBR by computational fluid dynamics",

abstract = "The hydrodynamics in the membrane module of a full-scale sMBR at 500 m3/d was simulated by computational fluid dynamics (CFD) in this study. Several key indexes, including membrane distance (d), aeration design, height of gas-liquid dispersion hm, and freeboard height hf and operational conditions, including SADp and liquid viscosity, were optimized through investigating their impacts on water velocity distribution and membrane shear stress. The CFD model was validated by comparing the simulated trace element RTD curves with experimental results. The optimal design and operational parameters for the full scale sMBR are as following: membrane distance d = 35 mm, air diffusers parallel located 75–100 mm under the bottom of the membrane module, the free board height hf adjusted to 400 mm, and the SADp recommended as 20 in the full-scale MBR studied.",

keywords = "Aeration, CFD simulation, MBR, RTD, Shear stress",

author = "Mengmeng Liu and Min Yang and Meixue Chen and Dawei Yu and Jiaxi Zheng and Jiang Chang and Xiaoshuang Wang and Chunmiao Ji and Yuansong Wei",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = dec,

doi = "10.1016/j.biortech.2018.08.089",

language = "英语",

volume = "269",

pages = "300--308",

journal = "Bioresource Technology",

issn = "0960-8524",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Numerical optimization of membrane module design and operation for a full-scale submerged MBR by computational fluid dynamics

AU - Liu, Mengmeng

AU - Yang, Min

AU - Chen, Meixue

AU - Yu, Dawei

AU - Zheng, Jiaxi

AU - Chang, Jiang

AU - Wang, Xiaoshuang

AU - Ji, Chunmiao

AU - Wei, Yuansong

PY - 2018/12

Y1 - 2018/12

N2 - The hydrodynamics in the membrane module of a full-scale sMBR at 500 m3/d was simulated by computational fluid dynamics (CFD) in this study. Several key indexes, including membrane distance (d), aeration design, height of gas-liquid dispersion hm, and freeboard height hf and operational conditions, including SADp and liquid viscosity, were optimized through investigating their impacts on water velocity distribution and membrane shear stress. The CFD model was validated by comparing the simulated trace element RTD curves with experimental results. The optimal design and operational parameters for the full scale sMBR are as following: membrane distance d = 35 mm, air diffusers parallel located 75–100 mm under the bottom of the membrane module, the free board height hf adjusted to 400 mm, and the SADp recommended as 20 in the full-scale MBR studied.

AB - The hydrodynamics in the membrane module of a full-scale sMBR at 500 m3/d was simulated by computational fluid dynamics (CFD) in this study. Several key indexes, including membrane distance (d), aeration design, height of gas-liquid dispersion hm, and freeboard height hf and operational conditions, including SADp and liquid viscosity, were optimized through investigating their impacts on water velocity distribution and membrane shear stress. The CFD model was validated by comparing the simulated trace element RTD curves with experimental results. The optimal design and operational parameters for the full scale sMBR are as following: membrane distance d = 35 mm, air diffusers parallel located 75–100 mm under the bottom of the membrane module, the free board height hf adjusted to 400 mm, and the SADp recommended as 20 in the full-scale MBR studied.

KW - Aeration

KW - CFD simulation

KW - MBR

KW - RTD

KW - Shear stress

UR - https://www.scopus.com/pages/publications/85052866735

U2 - 10.1016/j.biortech.2018.08.089

DO - 10.1016/j.biortech.2018.08.089

M3 - 文章

C2 - 30195222

AN - SCOPUS:85052866735

SN - 0960-8524

VL - 269

SP - 300

EP - 308

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Numerical optimization of membrane module design and operation for a full-scale submerged MBR by computational fluid dynamics

Abstract

UN SDGs

Keywords

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