CAJ | 학술논문

针对抗生素类工业废水难处理特点，特别是混合工业废水经二级生化处理后的尾水具有很难生化的特质，因此对二级生化处理后的尾水采用“臭氧预处理+絮凝沉淀+BAF”组合工艺进行深度处理。结果表明：依靠单纯BAF工艺处理COD去除效率平均仅为4.7%，无法达标，必须经臭氧氧化作用改变废水中某些有机物的结构和特性，使其发生开环、断链，才能进一步生物降解；臭氧预处理有效提高了二级生化出水的可生化性，且臭氧对BOD5处理效率随臭氧投加量的增加而提高，臭氧最佳投加量为20mg/L；该组合工艺对COD、NH3-N 和TP的平均去除效率为40.7%、34.4%和79.1%，出水 COD、NH3-N 和 TP 等指标均能达到《污水综合排放标准》（GB8978-1996）的一级排放标准。该组合工艺为难生物降解的抗生素类制药为主的混合工业废水二级出水的深度处理提供了新途径。
침대항생소류공업폐수난처리특점，특별시혼합공업폐수경이급생화처리후적미수구유흔난생화적특질，인차대이급생화처리후적미수채용“취양예처리+서응침정+BAF”조합공예진행심도처리。결과표명：의고단순BAF공예처리COD거제효솔평균부위4.7%，무법체표，필수경취양양화작용개변폐수중모사유궤물적결구화특성，사기발생개배、단련，재능진일보생물강해；취양예처리유효제고료이급생화출수적가생화성，차취양대BOD5처리효솔수취양투가량적증가이제고，취양최가투가량위20mg/L；해조합공예대COD、NH3-N 화TP적평균거제효솔위40.7%、34.4%화79.1%，출수 COD、NH3-N 화 TP 등지표균능체도《오수종합배방표준》（GB8978-1996）적일급배방표준。해조합공예위난생물강해적항생소류제약위주적혼합공업폐수이급출수적심도처리제공료신도경。
Considering the refractory features of antibiotic industrial wastewater,especially difficulty of biodegradation for the effluent of the mixed industrial wastewater after the secondary biochemical treatment ozone pretreatment+flocculation+BAF combined process was applied in this research. The results showed that the removal rate of COD treated by BAF process alone was 4.7%failing to meet the effluent standards. Ozonation can changes the structure and property of some organic components in wastewater,making further biodegradation possible. Ozone pretreatment can improve the biodegradability of effluent after secondary biochemical treatment and improve treatment efficiency of BOD. The optimal ozone concentration was 20mg/L. The average removal rate of COD,NH3-N and TP was 40.7%,34.4%and 79.1%,respectively. The concentration of COD,NH3-N,and TP in effluent achieved the first grade of Comprehensive Discharge Standard for Sewage (GB8978-1996). This combined process provided a new way for the advanced treatment of effluent of refractory antibiotic industrial wastewater after secondary biochemical treatment.