Influence of ultrasonic disintegration on the dewaterability of waste activated sludge

被引：80
|
作者：
Wang, F. [1 ]
Ji, M. [1 ]
Lu, S. [1 ]
机构：
[1] Tianjin Univ, Sch Environm Sci & Technol, Tianjin 300072, Peoples R China
来源：
ENVIRONMENTAL PROGRESS | 2006年 / 25卷 / 03期
关键词：
biopolymers; sludge dewaterability; extracellular polymeric substances;
D O I：
10.1002/ep.10149
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Ultrasound can be used to disintegrate waste activated sludge (WAS), resulting in changes in sludge dewaterability. To observe and explain the change in sludge dewatering properties before and after ultrasonic disintegration, the specific resistance to filtration (SRF), capillary suction time (CST), content of biopolymers (proteins + polysaccharides), and free water in the sludge before and after disintegration were examined. Despite the degradation of extracellular polymeric substances (EPS), the sludge dewatering properties worsened after disintegration. This result is attributed to two changes in the sludge, one being the effect of the water retained by the biopolymers and the other being the adsorption effect of the fine sludge particles for free water.
引用
收藏
页码：257 / 260
页数：4
相关论文
共 50 条
  • [21] Thermal Disintegration of Waste-Activated Sludge
    Bulkowska, Katarzyna
    Zielinska, Magdalena
    [J]. ENERGIES, 2024, 17 (17)
  • [22] Insight into the comparison of thermally and Fe(II) activated persulfate on sludge dewaterability and disintegration
    Guo, Shaodong
    Zhou, Long
    Huang, Yuxin
    Huang, Xinghu
    [J]. WATER SCIENCE AND TECHNOLOGY, 2021, 84 (06) : 1464 - 1476
  • [23] Oxidative treatment of waste activated sludge by different activated persulfate systems for enhancing sludge dewaterability
    Lee, Ki-Myeong
    Kim, Min Sik
    Lee, Changha
    [J]. SUSTAINABLE ENVIRONMENT RESEARCH, 2016, 26 (04) : 177 - 183
  • [24] Operational conditions of activated sludge: Influence on flocculation and dewaterability
    Sanin, F. Dilek
    Vatansever, Aysun
    Turtin, Ipek
    Kara, Fadime
    Durmaz, Burcu
    Sesay, Mohamed L.
    [J]. DRYING TECHNOLOGY, 2006, 24 (10) : 1297 - 1306
  • [25] Enhancing waste activated sludge dewaterability by reducing interaction energy of sludge flocs
    Yu, Wenbo
    Wan, Yanlei
    Wang, Yu
    Zhu, Yuwei
    Tao, Shuangyi
    Xu, Qi
    Xiao, Keke
    Liang, Sha
    Liu, Bingchuan
    Hou, Huijie
    Hu, Jingping
    Yang, Jiakuan
    [J]. ENVIRONMENTAL RESEARCH, 2021, 196
  • [26] Enhanced dewaterability of waste activated sludge with Fe(II)-activated hypochlorite treatment
    Zhu, Xiaofei
    Yang, Qi
    Li, Xiaoming
    Zhong, Yu
    Wu, You
    Hou, Lihua
    Wei, Jing
    Zhang, Weixuan
    Liu, Yu
    Chen, Chongyu
    Wang, Dongbo
    [J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2018, 25 (27) : 27628 - 27638
  • [27] Enhancement of aerobic biodegradability potential of municipal waste activated sludge by ultrasonic aided bacterial disintegration
    Kavitha, S.
    Brindha, G. M. Jessin
    Gloriana, A. Sally
    Rajashankar, K.
    Yeom, Ick Tae
    Banu, J. Rajesh
    [J]. BIORESOURCE TECHNOLOGY, 2016, 200 : 161 - 169
  • [28] Disintegration of waste activated sludge by a combined treatment of alkaline-modified eggshell and ultrasonic radiation
    Xiang, Yulin
    Xiang, Yukun
    Wang, Lipeng
    [J]. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 2017, 5 (02): : 1379 - 1385
  • [29] Enhanced dewaterability of waste activated sludge by Fe(II)-activated peroxymonosulfate oxidation
    Liu, Jun
    Yang, Qi
    Wang, Dongbo
    Li, Xiaoming
    Zhong, Yu
    Li, Xin
    Deng, Yongchao
    Wang, Liqun
    Yi, Kaixin
    Zeng, Guangming
    [J]. BIORESOURCE TECHNOLOGY, 2016, 206 : 134 - 140
  • [30] Progress of improving waste activated sludge dewaterability: Influence factors, conditioning technologies and implications and perspectives
    Yuan, Haiping
    Zhu, Nanwen
    [J]. SCIENCE OF THE TOTAL ENVIRONMENT, 2024, 912
12345