Cationic polyacrylamide (CPAM) enhanced pressurized vertical electro-osmotic dewatering of activated sludge

2021 ◽  
pp. 151787
Author(s):  
Meiqiang Cai ◽  
Zhuohui Qian ◽  
Xingaoyuan Xiong ◽  
Chunying Dong ◽  
Zhijun Song ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Cationic Polyacrylamide

Enhancement of Waste Activated Sludge Dewaterability by Potassium Ferrate Pretreatment

2014 ◽  
Vol 1073-1076 ◽  
pp. 937-940 ◽  
Author(s):  
Xiao Rong Kang ◽  
Ya Li Liu
Keyword(s):  
Activated Sludge ◽  
Optimal Dose ◽  
Soluble Proteins ◽  
Waste Activated Sludge ◽  
Potassium Ferrate ◽  
Sludge Dewatering ◽  
Cationic Polyacrylamide ◽  
Floc Structure ◽  
Sludge Dewaterability

Potassium ferrate was used to enhance sludge dewatering and the mechanism was studied. Sludge floc structure was effectively destroyed by potassium ferrate, and the soluble COD, proteins and polysaccharides increased with the increase of potassium ferrate. The optimal dose for sludge disintegration was 100 mg/gSS, and the corresponding maximal SCOD, soluble proteins and polysaccharides concentrations were 2455, 800 and 145 mg/L, respectively. Sludge dewaterability was enhanced significantly with cationic polyacrylamide (C-PAM) application, and the SRF decreased to 0.72×1010m/kg from 50.12×1010m/kg. This study indicated that the potassium ferrate pretreatment was helpful for enhancing sludge dewaterability and reducing the coagulant dose.

Enhanced dewaterability of waste-activated sludge by combined cationic polyacrylamide and magnetic field pretreatment

2014 ◽  
Vol 36 (4) ◽  
pp. 455-462 ◽  
Author(s):  
Dongsu Bi ◽  
Xiaopin Guo ◽  
Zhihong Cai ◽  
Zhen Yu ◽  
Dingmei Wang ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Activated Sludge ◽  
Waste Activated Sludge ◽  
Cationic Polyacrylamide

scholarly journals Understanding the impact of cationic polyacrylamide on anaerobic digestion of waste activated sludge

2018 ◽  
Vol 130 ◽  
pp. 281-290 ◽  
Author(s):  
Dongbo Wang ◽  
Xuran Liu ◽  
Guangming Zeng ◽  
Jianwei Zhao ◽  
Yiwen Liu ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Activated Sludge ◽  
Waste Activated Sludge ◽  
Cationic Polyacrylamide ◽  
The Impact
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