Effects of Piecewise Electric Field Operation on Sludge Dewatering: Phenomena and Mathematical Model

Hang Lv; Fang Wang; Daoguang Liu; Yanlin Zhang; Yueyuan Gu; Du Yuan; Siqi Xing; Xu Wu; Jiakuan Yang; Wenbiao Zhang; Keith Scott

doi:10.1021/acs.iecr.8b01019

Effects of Piecewise Electric Field Operation on Sludge Dewatering: Phenomena and Mathematical Model

Hang Lv
, Fang Wang
, Daoguang Liu
, Yanlin Zhang
, Yueyuan Gu
, Du Yuan
, Siqi Xing
, Xu Wu
, Jiakuan Yang
, Wenbiao Zhang
, Keith Scott

Research output: Journal article publication › Journal article › Academic research › peer-review

20 Citations (Scopus)

Abstract

Electro-dewatering (EDW) is an energy-efficient method for sludge dewatering. In this study, effects of piecewise electric field operation on EDW were investigated by experiments and simulation. Operational parameters were studied mainly in terms of sludge resistance variation during electro-dewatering process, which were evaluated by linear sweep voltammetry (LSV) analysis. Simulation of the sludge cake electro-dewatering processes was developed and validated, based upon time-dependent experimental data of electric currents and filtrate weights. The modeling results were in good agreement with experiments. It was proved by experimental and modeling results that the piecewise operation has positive effects on key performances of EDW devices, that is, limited water content, space-time yield, and mass specific energy consumption.

Original language	English
Pages (from-to)	12468-12477
Number of pages	10
Journal	Industrial and Engineering Chemistry Research
Volume	57
Issue number	37
DOIs	https://doi.org/10.1021/acs.iecr.8b01019
Publication status	Published - 19 Sept 2018
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

UN SDGs

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

More information

10.1021/acs.iecr.8b01019

Cite this

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title = "Effects of Piecewise Electric Field Operation on Sludge Dewatering: Phenomena and Mathematical Model",

abstract = "Electro-dewatering (EDW) is an energy-efficient method for sludge dewatering. In this study, effects of piecewise electric field operation on EDW were investigated by experiments and simulation. Operational parameters were studied mainly in terms of sludge resistance variation during electro-dewatering process, which were evaluated by linear sweep voltammetry (LSV) analysis. Simulation of the sludge cake electro-dewatering processes was developed and validated, based upon time-dependent experimental data of electric currents and filtrate weights. The modeling results were in good agreement with experiments. It was proved by experimental and modeling results that the piecewise operation has positive effects on key performances of EDW devices, that is, limited water content, space-time yield, and mass specific energy consumption.",

author = "Hang Lv and Fang Wang and Daoguang Liu and Yanlin Zhang and Yueyuan Gu and Du Yuan and Siqi Xing and Xu Wu and Jiakuan Yang and Wenbiao Zhang and Keith Scott",

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doi = "10.1021/acs.iecr.8b01019",

language = "English",

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journal = "Industrial and Engineering Chemistry Research",

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TY - JOUR

T1 - Effects of Piecewise Electric Field Operation on Sludge Dewatering

T2 - Phenomena and Mathematical Model

AU - Lv, Hang

AU - Wang, Fang

AU - Liu, Daoguang

AU - Zhang, Yanlin

AU - Gu, Yueyuan

AU - Yuan, Du

AU - Xing, Siqi

AU - Wu, Xu

AU - Yang, Jiakuan

AU - Zhang, Wenbiao

AU - Scott, Keith

PY - 2018/9/19

Y1 - 2018/9/19

N2 - Electro-dewatering (EDW) is an energy-efficient method for sludge dewatering. In this study, effects of piecewise electric field operation on EDW were investigated by experiments and simulation. Operational parameters were studied mainly in terms of sludge resistance variation during electro-dewatering process, which were evaluated by linear sweep voltammetry (LSV) analysis. Simulation of the sludge cake electro-dewatering processes was developed and validated, based upon time-dependent experimental data of electric currents and filtrate weights. The modeling results were in good agreement with experiments. It was proved by experimental and modeling results that the piecewise operation has positive effects on key performances of EDW devices, that is, limited water content, space-time yield, and mass specific energy consumption.

AB - Electro-dewatering (EDW) is an energy-efficient method for sludge dewatering. In this study, effects of piecewise electric field operation on EDW were investigated by experiments and simulation. Operational parameters were studied mainly in terms of sludge resistance variation during electro-dewatering process, which were evaluated by linear sweep voltammetry (LSV) analysis. Simulation of the sludge cake electro-dewatering processes was developed and validated, based upon time-dependent experimental data of electric currents and filtrate weights. The modeling results were in good agreement with experiments. It was proved by experimental and modeling results that the piecewise operation has positive effects on key performances of EDW devices, that is, limited water content, space-time yield, and mass specific energy consumption.

UR - https://www.scopus.com/pages/publications/85048109971

U2 - 10.1021/acs.iecr.8b01019

DO - 10.1021/acs.iecr.8b01019

M3 - Journal article

AN - SCOPUS:85048109971

SN - 0888-5885

VL - 57

SP - 12468

EP - 12477

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

IS - 37

ER -

Effects of Piecewise Electric Field Operation on Sludge Dewatering: Phenomena and Mathematical Model

Abstract

ASJC Scopus subject areas

UN SDGs

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