【摘要】 在相同运行条件下,进行了A₁-A₂/O（厌氧-缺氧/好氧）与A₂/O（缺氧/好氧）固定床处理焦化废水的比较试验.结果表明:A₁-A₂/O系统处理焦化废水的效果优于A₂/O系统,出水COD和NH₃—N平均低10～30mg/L和25.8mg/L;A₁-A₂/O系统在系统稳定性及抗冲击负荷能力上,明显优于A₂/O系统;A₁-A₂/O系统较优的原因在于厌氧段的水解酸化作用.更多还原

【Abstract】 A test to compare A1-A2/O (Anaerobic-Anoxic/Oxic) and A2/O (Anox-ic/Oxic) fixed-biofilm System has been running for coke-plant wastewater under the same operation conditions. The results show that A1-A2/O system is more efficient than A2/O system for the coke-plant wastewater, the average effluent COD and NH3-N of A1-A2/O system is lower than that of A2/O system about 10~30mg/l and 25. 8mg/l; A1-A2/O system is obviously better than A2/O system on the system stability to shock loading?the reasons for the advantages of A1-A2/O system lie in the hydrolysis acidification function of anaerobic reactor.更多还原