响应面法优化光聚合CMCTS-g-CPAM及其污泥脱水性能

Wenquan Sun; Hui Zhu; Yongjun Sun; Huaili Zheng; Mengdan Tang

doi:10.11835/j.issn.2096-6717.2019.083

响应面法优化光聚合CMCTS-g-CPAM及其污泥脱水性能

Translated title of the contribution: Optimization of photopolymerization CMCTS-g-CPAM by response surface methodology and evaluation of sludge dewatering performance

Wenquan Sun, Hui Zhu, Yongjun Sun, Huaili Zheng, Mengdan Tang

College of Urban Construction

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

Abstract

The novel cationic flocculant of CMCTS-g-CPAM was synthesized by polymerizing carboxymethyl chitosan (CMCTS), acrylamide (AM) and methacryloyloxyethyl trimethyl ammonium chloride (DMC) under ultraviolet (UV) radiation. The response surface method was adopted to obtain the optimum preparation conditions:illumination time 2 h, initiator mass fraction 0.04%, pH=8. FT-IR and ¹H-NMR of the graft copolymer indicated that AM, DMC and CMCTS have been successfully aggregated. Additionally, it can be verified by sludge dewatering test that it has good sludge dewatering performance: SRF decreased from 9.10×10¹³ m/kg to 1.96×10¹³ m/kg, and FCMC decreased from 90.15% to 79.28%,at the flocculant dosage and pH of 30 mg/L and 10, respectively. Sludge dewatering effect and economic benefits of CMCTS-g-CPAM are significantly precede to commercially available CPAM. Simultaneously, the research provides a reference for the flocculation treatment in the field of sludge dewatering and the application of chitosan modification in sludge dewatering.

Translated title of the contribution	Optimization of photopolymerization CMCTS-g-CPAM by response surface methodology and evaluation of sludge dewatering performance
Original language	Chinese (Traditional)
Pages (from-to)	150-158
Number of pages	9
Journal	Tumu yu Huanjing Gongcheng Xuebao/Journal of Civil and Environmental Engineering
Volume	41
Issue number	4
DOIs	https://doi.org/10.11835/j.issn.2096-6717.2019.083
State	Published - 1 Aug 2019

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10.11835/j.issn.2096-6717.2019.083

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title = "响应面法优化光聚合CMCTS-g-CPAM及其污泥脱水性能",

abstract = "The novel cationic flocculant of CMCTS-g-CPAM was synthesized by polymerizing carboxymethyl chitosan (CMCTS), acrylamide (AM) and methacryloyloxyethyl trimethyl ammonium chloride (DMC) under ultraviolet (UV) radiation. The response surface method was adopted to obtain the optimum preparation conditions:illumination time 2 h, initiator mass fraction 0.04%, pH=8. FT-IR and 1H-NMR of the graft copolymer indicated that AM, DMC and CMCTS have been successfully aggregated. Additionally, it can be verified by sludge dewatering test that it has good sludge dewatering performance: SRF decreased from 9.10×1013 m/kg to 1.96×1013 m/kg, and FCMC decreased from 90.15% to 79.28%,at the flocculant dosage and pH of 30 mg/L and 10, respectively. Sludge dewatering effect and economic benefits of CMCTS-g-CPAM are significantly precede to commercially available CPAM. Simultaneously, the research provides a reference for the flocculation treatment in the field of sludge dewatering and the application of chitosan modification in sludge dewatering.",

keywords = "Acrylamide, Carboxymethyl chitosan, Response surface mathod, Sludge dewatering, Ultraviolet light initiated polymerization",

author = "Wenquan Sun and Hui Zhu and Yongjun Sun and Huaili Zheng and Mengdan Tang",

year = "2019",

month = aug,

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doi = "10.11835/j.issn.2096-6717.2019.083",

language = "繁体中文",

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T1 - 响应面法优化光聚合CMCTS-g-CPAM及其污泥脱水性能

AU - Sun, Wenquan

AU - Zhu, Hui

AU - Sun, Yongjun

AU - Zheng, Huaili

AU - Tang, Mengdan

PY - 2019/8/1

Y1 - 2019/8/1

N2 - The novel cationic flocculant of CMCTS-g-CPAM was synthesized by polymerizing carboxymethyl chitosan (CMCTS), acrylamide (AM) and methacryloyloxyethyl trimethyl ammonium chloride (DMC) under ultraviolet (UV) radiation. The response surface method was adopted to obtain the optimum preparation conditions:illumination time 2 h, initiator mass fraction 0.04%, pH=8. FT-IR and 1H-NMR of the graft copolymer indicated that AM, DMC and CMCTS have been successfully aggregated. Additionally, it can be verified by sludge dewatering test that it has good sludge dewatering performance: SRF decreased from 9.10×1013 m/kg to 1.96×1013 m/kg, and FCMC decreased from 90.15% to 79.28%,at the flocculant dosage and pH of 30 mg/L and 10, respectively. Sludge dewatering effect and economic benefits of CMCTS-g-CPAM are significantly precede to commercially available CPAM. Simultaneously, the research provides a reference for the flocculation treatment in the field of sludge dewatering and the application of chitosan modification in sludge dewatering.

AB - The novel cationic flocculant of CMCTS-g-CPAM was synthesized by polymerizing carboxymethyl chitosan (CMCTS), acrylamide (AM) and methacryloyloxyethyl trimethyl ammonium chloride (DMC) under ultraviolet (UV) radiation. The response surface method was adopted to obtain the optimum preparation conditions:illumination time 2 h, initiator mass fraction 0.04%, pH=8. FT-IR and 1H-NMR of the graft copolymer indicated that AM, DMC and CMCTS have been successfully aggregated. Additionally, it can be verified by sludge dewatering test that it has good sludge dewatering performance: SRF decreased from 9.10×1013 m/kg to 1.96×1013 m/kg, and FCMC decreased from 90.15% to 79.28%,at the flocculant dosage and pH of 30 mg/L and 10, respectively. Sludge dewatering effect and economic benefits of CMCTS-g-CPAM are significantly precede to commercially available CPAM. Simultaneously, the research provides a reference for the flocculation treatment in the field of sludge dewatering and the application of chitosan modification in sludge dewatering.

KW - Acrylamide

KW - Carboxymethyl chitosan

KW - Response surface mathod

KW - Sludge dewatering

KW - Ultraviolet light initiated polymerization

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JO - Tumu yu Huanjing Gongcheng Xuebao/Journal of Civil and Environmental Engineering

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ER -

响应面法优化光聚合CMCTS-g-CPAM及其污泥脱水性能

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