Coagulation performance and membrane fouling of polyferric chloride/epichlorohydrin-dimethylamine in coagulation/ultrafiltration combined process

Shenglei Sun; Zhonglian Yang; Xin Huang; Fan Bu; Defang Ma; Hongyu Dong; Baoyu Gao; Qinyan Yue; Yan Wang; Qian Li

doi:10.1016/j.desal.2014.11.031

Coagulation performance and membrane fouling of polyferric chloride/epichlorohydrin-dimethylamine in coagulation/ultrafiltration combined process

Shenglei Sun
, Zhonglian Yang
, Xin Huang
, Fan Bu
, Defang Ma
, Hongyu Dong
, Baoyu Gao^*
, Qinyan Yue
, Yan Wang
, Qian Li

^*Corresponding author for this work

Shandong University

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

17 Scopus citations

Abstract

Polyferric chloride (PFC) and epichlorohydrin-dimethylamine (DAM-ECH) with different PFC (as Fe³⁺)/DAM-ECH mass ratios (MR) and dose methods were used in the treatment of humic acid-kaolin (HA-kaolin) simulated water under different pH conditions. Coagulation performance, floc characteristics and membrane fouling of PFC/DAM-ECH in coagulation-ultrafiltration (C-UF) process were investigated in this study. Results showed that the optimum coagulation performance was achieved when PFC dose was 15mg/L with PFC/DAM-ECH MR of 2:1 under pH6.0. Opposite adding sequence (DAM-ECH/PFC) would reduce UV₂₅₄ (ultraviolet adsorption at 254nm) and DOC (dissolved organic carbon) removal efficiency. Addition of DAM-ECH on the basis of PFC produced larger and stronger flocs with better regrowth ability. Proper dosage of DAM-ECH under certain coagulation condition could achieve the best coagulation performance and keep the UF membrane operating under a preferable status. Results of this study would be beneficial for application of composite coagulant PFC-DAM-ECH and DAM-ECH as coagulant aid in water treatment processes.

Original language	English
Pages (from-to)	163-170
Number of pages	8
Journal	Desalination
Volume	357
DOIs	https://doi.org/10.1016/j.desal.2014.11.031
State	Published - 2 Feb 2015
Externally published	Yes

Keywords

Coagulation
Floc properties
Membrane fouling
PFC/DAM-ECH

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10.1016/j.desal.2014.11.031

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@article{d89fe76d341f4fe5a665744437f51a9e,

title = "Coagulation performance and membrane fouling of polyferric chloride/epichlorohydrin-dimethylamine in coagulation/ultrafiltration combined process",

abstract = "Polyferric chloride (PFC) and epichlorohydrin-dimethylamine (DAM-ECH) with different PFC (as Fe3+)/DAM-ECH mass ratios (MR) and dose methods were used in the treatment of humic acid-kaolin (HA-kaolin) simulated water under different pH conditions. Coagulation performance, floc characteristics and membrane fouling of PFC/DAM-ECH in coagulation-ultrafiltration (C-UF) process were investigated in this study. Results showed that the optimum coagulation performance was achieved when PFC dose was 15mg/L with PFC/DAM-ECH MR of 2:1 under pH6.0. Opposite adding sequence (DAM-ECH/PFC) would reduce UV254 (ultraviolet adsorption at 254nm) and DOC (dissolved organic carbon) removal efficiency. Addition of DAM-ECH on the basis of PFC produced larger and stronger flocs with better regrowth ability. Proper dosage of DAM-ECH under certain coagulation condition could achieve the best coagulation performance and keep the UF membrane operating under a preferable status. Results of this study would be beneficial for application of composite coagulant PFC-DAM-ECH and DAM-ECH as coagulant aid in water treatment processes.",

keywords = "Coagulation, Floc properties, Membrane fouling, PFC/DAM-ECH",

author = "Shenglei Sun and Zhonglian Yang and Xin Huang and Fan Bu and Defang Ma and Hongyu Dong and Baoyu Gao and Qinyan Yue and Yan Wang and Qian Li",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier B.V.",

year = "2015",

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doi = "10.1016/j.desal.2014.11.031",

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T1 - Coagulation performance and membrane fouling of polyferric chloride/epichlorohydrin-dimethylamine in coagulation/ultrafiltration combined process

AU - Sun, Shenglei

AU - Yang, Zhonglian

AU - Huang, Xin

AU - Bu, Fan

AU - Ma, Defang

AU - Dong, Hongyu

AU - Gao, Baoyu

AU - Yue, Qinyan

AU - Wang, Yan

AU - Li, Qian

PY - 2015/2/2

Y1 - 2015/2/2

N2 - Polyferric chloride (PFC) and epichlorohydrin-dimethylamine (DAM-ECH) with different PFC (as Fe3+)/DAM-ECH mass ratios (MR) and dose methods were used in the treatment of humic acid-kaolin (HA-kaolin) simulated water under different pH conditions. Coagulation performance, floc characteristics and membrane fouling of PFC/DAM-ECH in coagulation-ultrafiltration (C-UF) process were investigated in this study. Results showed that the optimum coagulation performance was achieved when PFC dose was 15mg/L with PFC/DAM-ECH MR of 2:1 under pH6.0. Opposite adding sequence (DAM-ECH/PFC) would reduce UV254 (ultraviolet adsorption at 254nm) and DOC (dissolved organic carbon) removal efficiency. Addition of DAM-ECH on the basis of PFC produced larger and stronger flocs with better regrowth ability. Proper dosage of DAM-ECH under certain coagulation condition could achieve the best coagulation performance and keep the UF membrane operating under a preferable status. Results of this study would be beneficial for application of composite coagulant PFC-DAM-ECH and DAM-ECH as coagulant aid in water treatment processes.

AB - Polyferric chloride (PFC) and epichlorohydrin-dimethylamine (DAM-ECH) with different PFC (as Fe3+)/DAM-ECH mass ratios (MR) and dose methods were used in the treatment of humic acid-kaolin (HA-kaolin) simulated water under different pH conditions. Coagulation performance, floc characteristics and membrane fouling of PFC/DAM-ECH in coagulation-ultrafiltration (C-UF) process were investigated in this study. Results showed that the optimum coagulation performance was achieved when PFC dose was 15mg/L with PFC/DAM-ECH MR of 2:1 under pH6.0. Opposite adding sequence (DAM-ECH/PFC) would reduce UV254 (ultraviolet adsorption at 254nm) and DOC (dissolved organic carbon) removal efficiency. Addition of DAM-ECH on the basis of PFC produced larger and stronger flocs with better regrowth ability. Proper dosage of DAM-ECH under certain coagulation condition could achieve the best coagulation performance and keep the UF membrane operating under a preferable status. Results of this study would be beneficial for application of composite coagulant PFC-DAM-ECH and DAM-ECH as coagulant aid in water treatment processes.

KW - Coagulation

KW - Floc properties

KW - Membrane fouling

KW - PFC/DAM-ECH

UR - https://www.scopus.com/pages/publications/84913553650

U2 - 10.1016/j.desal.2014.11.031

DO - 10.1016/j.desal.2014.11.031

M3 - 文章

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SN - 0011-9164

VL - 357

SP - 163

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JO - Desalination

JF - Desalination

ER -

Coagulation performance and membrane fouling of polyferric chloride/epichlorohydrin-dimethylamine in coagulation/ultrafiltration combined process

Abstract

Keywords

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