SHIJing-xin,XUChun-yan,HANHong-jun.Anaerobic Degradation of Coal Pyrolysis Wastewater Enhanced by Polyurethane Packing Media[J].China Water & Wastewater,2023,39(7):102-106.
Anaerobic Degradation of Coal Pyrolysis Wastewater Enhanced by Polyurethane Packing Media
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第7期
Page:
102-106
Column:
Date of publication:
2023-04-01
- Keywords:
- coal pyrolysis wastewater; phenolic compounds; enhanced anaerobic treatment; polyurethane packing media; biotoxicity
- Abstract:
- The phenolic compounds with high concentration in coal pyrolysis wastewater have the characteristics of low degradation rate and high biotoxicity in anaerobic treatment process. To solve this problem, this paper designed an enhanced anaerobic sludge system packing with polyurethane for coal pyrolysis wastewater treatment, and investigated the effects of anaerobic sludge reactor and polyurethane biofilter on the degradation rate of high concentration phenolic compounds in coal pyrolysis wastewater. When the concentration of total phenol in influent was 600 mg/L, the degradation rates of total phenol in anaerobic sludge reactor and polyurethane biofilter were 18.3% and 51.89%, respectively. Compared with single anaerobic sludge reactor, the anaerobic biofilter packing with polyurethane media showed stronger impact load resistance and stable degradation rate. In addition, the high concentration phenolic compounds showed strong toxicity inhibition on barley seed and Daphnia magna. Compared with anaerobic sludge reactor, the toxicity inhibition effect of high concentration phenolic compounds was significantly reduced after the treatment of biofilter packing with polyurethane.
Last Update:
2023-04-01