• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Zhang, Jinghui (Zhang, Jinghui.) | Yang, Hong (Yang, Hong.) (学者:杨宏) | Yang, Lian (Yang, Lian.) | Li, Wei (Li, Wei.) | Xu, Lei (Xu, Lei.) | Wang, Jiawei (Wang, Jiawei.)

收录:

Scopus SCIE

摘要:

Wastewater treatment generates considerable amounts of sludge. Reducing sludge volume by dewatering is an important part of many wastewater treatment processes. We investigated the effects of a combination of sodium dodecyl sulfate (SDS) and polydimethyldiallylammonium chloride (PDMDAAC) on anaerobically digested sludge dewaterability. Capillary suction time (CST) and specific resistance to filtration (SRF) were measured as indicators of sludge dewaterability. Extracellular polymeric substances (EPS) content, particle size, zeta potential, and bound water in sludge floc were also measured. We found that CST increased from 348.5 to 530.5 s as the SDS dosage increased. However, with a dose 0.03 g g(-1) DS PDMDAAC only, SRF and CST were 3.78 x 10(12) m kg(-1) and 79.2 s; with a combined dose of 0.025 g g(-1) DS SDS and 0.03 g g(-1) DS PDMDAAC, SRF and CST decreased to 3.21 x 10(12) m kg(-1) and 68.7 s. These results indicate that above a certain dose, SDS reduces sludge dewaterability and that an optimum dose of SDS in sludge pre-treatment would improve subsequent PDMDAAC conditioning. Sludge conditioned with a combination of SDS and PDMDAAC increases dewaterability more than conditioned with SDS only or PDMDAAC only. Freeing EPS-bound water with SDS followed by re-flocculation using PDMDAAC gave improvement in sludge dewaterability.

关键词:

Polydimethyldiallylammonium chloride Extracellular polymeric substances Bound water Sludge dewatering Sodium dodecyl sulfate

作者机构:

  • [ 1 ] [Zhang, Jinghui]Beijing Univ Technol, Dept Civil Engn, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 2 ] [Yang, Hong]Beijing Univ Technol, Dept Civil Engn, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 3 ] [Zhang, Jinghui]Beijing Drainage Grp Co LTD, B37 Chegongzhuang St North Lane, Beijing 100044, Peoples R China
  • [ 4 ] [Yang, Lian]Beijing Drainage Grp Co LTD, B37 Chegongzhuang St North Lane, Beijing 100044, Peoples R China
  • [ 5 ] [Li, Wei]Beijing Drainage Grp Co LTD, B37 Chegongzhuang St North Lane, Beijing 100044, Peoples R China
  • [ 6 ] [Xu, Lei]Beijing Drainage Grp Co LTD, B37 Chegongzhuang St North Lane, Beijing 100044, Peoples R China
  • [ 7 ] [Wang, Jiawei]Beijing Drainage Grp Co LTD, B37 Chegongzhuang St North Lane, Beijing 100044, Peoples R China
  • [ 8 ] [Zhang, Jinghui]Beijing Municipal Sewage Recycling Engn & Technol, A1 Gaobeidian, Beijing 100122, Peoples R China
  • [ 9 ] [Yang, Lian]Beijing Municipal Sewage Recycling Engn & Technol, A1 Gaobeidian, Beijing 100122, Peoples R China
  • [ 10 ] [Li, Wei]Beijing Municipal Sewage Recycling Engn & Technol, A1 Gaobeidian, Beijing 100122, Peoples R China
  • [ 11 ] [Wang, Jiawei]Beijing Municipal Sewage Recycling Engn & Technol, A1 Gaobeidian, Beijing 100122, Peoples R China

通讯作者信息:

  • 杨宏

    [Yang, Hong]Beijing Univ Technol, Dept Civil Engn, 100 Pingleyuan, Beijing 100124, Peoples R China

查看成果更多字段

相关关键词:

来源 :

DESALINATION AND WATER TREATMENT

ISSN: 1944-3994

年份: 2019

卷: 158

页码: 59-66

1 . 1 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:136

JCR分区:4

被引次数:

WoS核心集被引频次: 2

SCOPUS被引频次: 2

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 1

在线人数/总访问数:302/3907982
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司