Advanced treatment of biologically pretreated coal gasification wastewater using a novel anoxic moving bed biofilm reactor (ANMBBR)–biological aerated filter (BAF) system

2014 ◽  
Vol 157 ◽  
pp. 223-230 ◽  
Author(s):  
Haifeng Zhuang ◽  
Hongjun Han ◽  
Shengyong Jia ◽  
Qian Zhao ◽  
Baolin Hou
Keyword(s):  
Coal Gasification ◽  
Biofilm Reactor ◽  
Advanced Treatment ◽  
Biological Aerated Filter ◽  
Moving Bed Biofilm Reactor ◽  
Moving Bed ◽  
Coal Gasification Wastewater ◽  
Aerated Filter

scholarly journals Enhanced Degradation of Phenolic Compounds in Coal Gasification Wastewater by Methods of Microelectrolysis Fe-C and Anaerobic-Anoxic—Oxic Moving Bed Biofilm Reactor (A2O-MBBR)

Processes ◽  
2020 ◽  
Vol 8 (10) ◽  
pp. 1258
Author(s):  
Do Tra Huong ◽  
Van Tu Nguyen ◽  
Xuan Linh Ha ◽  
Hien Lan Nguyen Thi ◽  
Thi Thoa Duong ◽  
...  
Keyword(s):  
Coal Gasification ◽  
Combined Treatment ◽  
Biofilm Reactor ◽  
Phenol Removal ◽  
Joint Stock Company ◽  
N Content ◽  
Total N ◽  
Moving Bed ◽  
Internal Electrolysis ◽  
Coal Gasification Wastewater

The coal gasification wastewater figures prominently among types of industrial effluents due to its complex and phenolic composition, posing great difficulty for conventional water treatment processes. Since the coking wastewater is toxic and mutagenic to humans and animals, treatment of coal gasification wastewater is genuinely necessary. In this study, we established a lab-scale A2O (Anaerobic-Anoxic—Oxic) with moving bed biological reactor (MBBR) system and evaluated some water indicators of wastewater pretreated with internal electrolysis, of wastewater output of the established A2O-MBBR system, and of the wastewater treated by the combination thereof. The wastewater was taken from a coking plant at Thai Nguyen Iron and Steel Joint Stock Company in Vietnam. COD, BOD5, NH4+-N, phenol, and pH of the input coal gasification wastewater were 2359, 1105, 319, 172 mg/L, and 8 ± 0.1, respectively. The conditions of internal electrolysis were as follows: 720 min of reaction time, pH = 4, 25 g/L Fe-C dosage, and 100 mg/L PAM dosage. After internal electrolysis process, the removal of COD, BOD5, NH4+-N, and phenol were 53.7%, 56.7% 60.5%, and 73.3%, respectively. After 24 h of treatment, the treatment efficiencies of the combined treatment process are as follows: 100% phenol removal, 71.3% of TSS removal; 97.7% reduction of BOD5, and 97.1% reduction of COD; total N content reduced by 97.6%; total P content decreased by 81.6%; and NH4+-N content decreased by 97.5%. All above indicators after treatment have met QCVN 52: 2017/BTNMT (column A) Vietnamese standard for steel industry wastewater.

Advanced treatment of biologically pretreated coal gasification wastewater using a novel expansive flow biological intermittent aerated filter process with a ceramic filler from reused coal fly ash

RSC Advances ◽  
2016 ◽  
Vol 6 (46) ◽  
pp. 39940-39946 ◽  
Author(s):  
Haifeng Zhuang ◽  
Shengdao Shan ◽  
Chengran Fang ◽  
Xiaoli Yuan
Keyword(s):  
Coal Gasification ◽  
Coal Fly Ash ◽  
Advanced Treatment ◽  
Low Carbon ◽  
Filter Process ◽  
Expansive Flow ◽  
Carbon Nitrogen Ratio ◽  
Nitrogen Ratio ◽  
Coal Gasification Wastewater ◽  
Aerated Filter

A novel expansive flow biological intermittent aerated filter (BIAF) process was employed for the advanced treatment of real biologically pretreated coal gasification wastewater (CGW) which had poor biodegradability and a low carbon/nitrogen ratio.

Modeling of the attached and suspended biomass fractions in a moving bed biofilm reactor

Chemosphere ◽  
2021 ◽  
Vol 275 ◽  
pp. 129937
Author(s):  
Alessandro di Biase ◽  
Maciej S. Kowalski ◽  
Tanner R. Devlin ◽  
Jan A. Oleszkiewicz
Keyword(s):  
Biofilm Reactor ◽  
Moving Bed Biofilm Reactor ◽  
Moving Bed ◽  
Suspended Biomass
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