Water coagulation using electrostatic patch coagulation (EPC) mechanism

Ya Ling Cheng; Ruei Jyun Wong; Justin Chun Te Lin; Ch-Hpin Huang; Duu Jong Lee; Arun S. Mujumdar

doi:10.1080/07373937.2010.490492

Water coagulation using electrostatic patch coagulation (EPC) mechanism

Ya Ling Cheng, Ruei Jyun Wong, Justin Chun Te Lin, Ch-Hpin Huang, Duu Jong Lee^*, Arun S. Mujumdar

^*Corresponding author for this work

Institute of Environmental Engineering

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

19 Scopus citations

Abstract

Coagulation of fine particles to form large flocs is an essential step to reach efficient dewatering of wet materials. The electrostatic patch coagulation (EPC) mechanism was applied in this study to remove turbidity and natural organic matters in water using four different dosing-mixing schemes. Sufficient rapid mixing and slow mixing or applying two-stage coagulation benefit removal of turbidity. The EPC mechanism could only efficiently remove organic matters of molecular weight of 7500-10,000 Da. Only sufficient rapid mixing is relevant to organic matter removal. The mechanisms for natural organic matters (NOM) removal are proposed to be complexation of ions and NOM to form insoluble aggregates to be separated by membrane filtration.

Original language	English
Pages (from-to)	850-857
Number of pages	8
Journal	Drying Technology
Volume	28
Issue number	7
DOIs	https://doi.org/10.1080/07373937.2010.490492
State	Published - Jul 2010

Keywords

Coagulation
Electrostatic
Mixing intensity
Natural organic matters

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10.1080/07373937.2010.490492

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abstract = "Coagulation of fine particles to form large flocs is an essential step to reach efficient dewatering of wet materials. The electrostatic patch coagulation (EPC) mechanism was applied in this study to remove turbidity and natural organic matters in water using four different dosing-mixing schemes. Sufficient rapid mixing and slow mixing or applying two-stage coagulation benefit removal of turbidity. The EPC mechanism could only efficiently remove organic matters of molecular weight of 7500-10,000 Da. Only sufficient rapid mixing is relevant to organic matter removal. The mechanisms for natural organic matters (NOM) removal are proposed to be complexation of ions and NOM to form insoluble aggregates to be separated by membrane filtration.",

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AU - Cheng, Ya Ling

AU - Wong, Ruei Jyun

AU - Lin, Justin Chun Te

AU - Huang, Ch-Hpin

AU - Lee, Duu Jong

AU - Mujumdar, Arun S.

PY - 2010/7

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N2 - Coagulation of fine particles to form large flocs is an essential step to reach efficient dewatering of wet materials. The electrostatic patch coagulation (EPC) mechanism was applied in this study to remove turbidity and natural organic matters in water using four different dosing-mixing schemes. Sufficient rapid mixing and slow mixing or applying two-stage coagulation benefit removal of turbidity. The EPC mechanism could only efficiently remove organic matters of molecular weight of 7500-10,000 Da. Only sufficient rapid mixing is relevant to organic matter removal. The mechanisms for natural organic matters (NOM) removal are proposed to be complexation of ions and NOM to form insoluble aggregates to be separated by membrane filtration.

AB - Coagulation of fine particles to form large flocs is an essential step to reach efficient dewatering of wet materials. The electrostatic patch coagulation (EPC) mechanism was applied in this study to remove turbidity and natural organic matters in water using four different dosing-mixing schemes. Sufficient rapid mixing and slow mixing or applying two-stage coagulation benefit removal of turbidity. The EPC mechanism could only efficiently remove organic matters of molecular weight of 7500-10,000 Da. Only sufficient rapid mixing is relevant to organic matter removal. The mechanisms for natural organic matters (NOM) removal are proposed to be complexation of ions and NOM to form insoluble aggregates to be separated by membrane filtration.

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KW - Electrostatic

KW - Mixing intensity

KW - Natural organic matters

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Water coagulation using electrostatic patch coagulation (EPC) mechanism

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Keywords

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