摘要：

分别采用兼氧/好氧工艺和好氧工艺对苯酚丙酮废水进行生物处理研究。该废水具有高盐分、高有机物浓度、低pH的特点，进水COD_Cr约1 187 mg/L。监测结果表明，使用兼氧/好氧工艺处理，兼氧槽出水平COD_Cr为1 021 mg/L，CODCr降低20.9%，而BOD5则升高11.9%，B/C升高了41.5%。这说明经过兼氧槽处理后，废水的可生化性进一步提高。再经过好氧槽处理，最终出水平均COD_Cr为63.0 mg/L。但仅采用好氧工艺的好氧槽出水平均COD_Cr为75.2 mg/L。实践证明采用生物处理工艺处理苯酚苯酮废水，出水可达《污水综合排放标准》（GB 8978—1996）的一级排放标准。

关键词: 苯酚丙酮废水, 兼氧, 好氧, 生物处理

Abstract:

Phenol acetone wastewater biological treatment has been studied by facultative anaerobic/aerobic technology and aerobic technology respectively.This wastewater is characterized by high salt,high concentrations of organic matter and low pH. The COD_Cr of influent wastewater is about 1 187 mg/L. Monitoring results show that after facultative anaerobic/aerobic treatment, the average COD_Cr of effluent wastewater from facultative anaerobic tank is 1 021 mg/L. Eventually, the COD_Cr from facultative anaerobic tank decreases 20.9%, but BOD₅ increases 11.9%,B/C ratio increases 41.5% higher. This shows that through the treatment in facultative anaerobic tank,wastewater biodegradability is further increased. After being treated in the aerobic tank again, the final average effluent COD_Cr is 63.0 mg/L. However, if only the aerobic treatment technology is used, the average effluent COD_Cr is 75.2 mg/L. Practice has proved that the wastewater treated by biological treatment technology, the effluent reaches the First Grade of the Comprehensive Wastewater Discharge Standard（GB 8978—1996）.

Key words: phenol acetone wastewater, facultative anaerobic, aerobic, biological treatment.

中图分类号: 

• X703.1