• 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:

Jin, Baodan (Jin, Baodan.) | Wang, Shuying (Wang, Shuying.) (学者:王淑莹) | Xing, Liqun (Xing, Liqun.) | Li, Baikun (Li, Baikun.) | Peng, Yongzhen (Peng, Yongzhen.) (学者:彭永臻)

收录:

Scopus SCIE

摘要:

Carbon source shortage and waste sludge treatment are two problems facing sewage treatment plants. The purpose of this work was to investigate the feasibility of using salt (NaCl) to enhance the production of short-chain fatty acids (SCFAs) from waste sludge, reduce sludge production, and lower the operating cost. Four sodium chloride (NaCl) concentrations (0, 2, 15, and 25 g/L) and temperatures (20, 30, 35, and 40 degrees C) were examined individually in batch-mode sludge fermentation systems. The results showed that NaCl promoted the release of soluble proteins and polysaccharides, enhanced hydrolysis acidification and SCFAs accumulation, suppressed the activity of coenzyme 420 and the growth of methanogens. The optimal condition of hydrolysis acidification was 15 g/L NaCl and 35 degrees C, and the acidification was deteriorated at 25 g/L NaCl and 40 degrees C. Compared with the blank test (0 g/L NaCl), the sludge reduction and SCFAs production increased by 22.12 and 21.21%, respectively. With regard to the alkali consumption per unit (1 mmol), the SCFAs production and sludge reduction was increased by 9.6 and 21.99%.

关键词:

Hydrolytic acidification Methanogens Short volatile fatty acids (SCFAs) Sodium chloride (NaCl) Waste activated sludge

作者机构:

  • [ 1 ] [Jin, Baodan]Beijing Univ Technol, Engn Res Ctr Beijing, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China
  • [ 2 ] [Wang, Shuying]Beijing Univ Technol, Engn Res Ctr Beijing, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China
  • [ 3 ] [Xing, Liqun]Beijing Univ Technol, Engn Res Ctr Beijing, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China
  • [ 4 ] [Li, Baikun]Beijing Univ Technol, Engn Res Ctr Beijing, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China
  • [ 5 ] [Peng, Yongzhen]Beijing Univ Technol, Engn Res Ctr Beijing, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China

通讯作者信息:

  • 王淑莹

    [Wang, Shuying]Beijing Univ Technol, Engn Res Ctr Beijing, Key Lab Beijing Water Qual Sci & Water Environm R, Beijing 100124, Peoples R China

电子邮件地址:

查看成果更多字段

相关关键词:

来源 :

CLEAN-SOIL AIR WATER

ISSN: 1863-0650

年份: 2016

期: 12

卷: 44

页码: 1750-1758

1 . 7 0 0

JCR@2022

ESI学科: ENVIRONMENT/ECOLOGY;

ESI高被引阀值:145

中科院分区:3

被引次数:

WoS核心集被引频次: 6

SCOPUS被引频次: 7

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: 2

在线人数/总访问数:1309/2921174
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