Ion-exchange membrane bioelectrochemical reactor for removal of nitrate in the biological effluent from a coking wastewater treatment plant

2014 ◽  
Vol 46 ◽  
pp. 99-102 ◽  
Author(s):  
Daohai Xie ◽  
Chenchen Li ◽  
Rong Tang ◽  
Zhisheng Lv ◽  
Yuan Ren ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Ion Exchange ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Ion Exchange Membrane ◽  
Coking Wastewater ◽  
Exchange Membrane ◽  
Bioelectrochemical Reactor

scholarly journals Isolation and characterization of organic matter-degrading bacteria from coking wastewater treatment plant

2018 ◽  
Vol 78 (7) ◽  
pp. 1517-1524 ◽  
Author(s):  
Riqiang Li ◽  
Jianxing Wang ◽  
Hongjiao Li
Keyword(s):  
Organic Matter ◽  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Removal Rate ◽  
Treatment Plant ◽  
Coking Wastewater ◽  
Naphthalene Degradation ◽  
Isolation And Characterization ◽  
Degrading Bacteria

Abstract As a step toward bioaugmentation of coking wastewater treatment 45 bacteria strains were isolated from the activated sludge of a coking wastewater treatment plant (WWTP). Three strains identified as Bacillus cereus, Pseudomonas synxantha, and Pseudomonas pseudoaligenes exhibited high dehydrogenase activity which indicates a strong ability to degrade organic matter. Subsequently all three strains showed high naphthalene degradation abilities. Naphthalene is a refractory compound often found in coking wastewater. For B. cereus and P. synxantha the maximum naphthalene removal rates were 60.4% and 79.8%, respectively, at an initial naphthalene concentration of 80 mg/L, temperature of 30 °C, pH of 7, a bacteria concentration of 15% (V/V), and shaking speed of 160 r/min. For P. pseudoaligenes, the maximum naphthalene removal rate was 77.4% under similar conditions but at 35 °C.

The occurrence and fate of phenolic compounds in a coking wastewater treatment plant

2013 ◽  
Vol 68 (2) ◽  
pp. 433-440 ◽  
Author(s):  
Wanhui Zhang ◽  
Chaohai Wei ◽  
Chunhua Feng ◽  
Yuan Ren ◽  
Yun Hu ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Phenolic Compounds ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Treated Wastewater ◽  
Coking Wastewater ◽  
Sludge Sample ◽  
Physical Chemical ◽  
Mass Flows ◽  
Dewatered Sludge

The occurrence of 14 phenolic compounds (PCs) was assessed in the raw, treated wastewater, dewatered sludge and gas samples from a coking wastewater treatment plant (WWTP) in China. It was found that 3-cresol was the dominant compound in the raw coking wastewater with a concentration of 183 mg L−1, and that chlorophenols and nitrophenols were in the level of μg L−1. Phenol was the dominant compound in the gas samples, while 2,4,6-trichlorophenol predominated in the dewatered sludge sample. The anaerobic and aerobic tanks played key roles in the elimination of chlorophenols and phenols, respectively. Analysis of daily mass flows of PCs in WWTP showed that 89–98% of phenols and 83–89% of nitrophenols were biodegraded, and that 44–69% of chlorophenols were adsorbed to sludge, indicating that the fate of PCs was highly influenced by their biodegradability and physical–chemical property.

Estrogenic activity and identification of potential xenoestrogens in a coking wastewater treatment plant

2015 ◽  
Vol 112 ◽  
pp. 238-246 ◽  
Author(s):  
Jian-Liang Zhao ◽  
Xiao-Wen Chen ◽  
Bo Yan ◽  
Chaohai Wei ◽  
Yu-Xia Jiang ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Estrogenic Activity ◽  
Treatment Plant ◽  
Coking Wastewater
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