【摘要】 针对煤热解废水内高浓度酚类化合物在厌氧工艺中降解率较低和生物毒性较强的特点，设计了以聚氨酯填料为载体的强化厌氧处理煤热解废水系统，研究了厌氧污泥反应器和聚氨酯生物膜反应器对煤热解废水中高浓度酚类化合物降解率的影响。结果表明，当进水中总酚浓度为600 mg/L时，厌氧污泥反应器和聚氨酯生物膜反应器对总酚的降解率分别为18.3%和51.89%。相比于厌氧污泥反应器，聚氨酯生物膜反应器具有较强的耐冲击负荷能力和稳定的降解率。此外，高浓度酚类化合物对大麦种子和大型溞具有较强的毒性抑制作用。相比于厌氧污泥反应器，高浓度酚类化合物经聚氨酯生物膜反应器处理后，其毒性抑制作用明显减弱。更多还原

【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.更多还原