DINGLai-bao,TIANQing-wen,PANAi-xiang,et al.Application of a Bioaugmentation Technology in Industrial Park Wastewater Treatment[J].China Water & Wastewater,2024,40(16):121-125.
生物增效技术在工业园区污水处理厂的应用
- Title:
- Application of a Bioaugmentation Technology in Industrial Park Wastewater Treatment
- 摘要:
- 针对工业园区废水经上游企业处理后，可降解有机物含量低，活性污泥系统处理效果差、运行困难和深度处理成本高等问题，采用生物增效技术构建新的生物降解体系。实际运行结果表明，好氧出水COD较普通生化出水COD下降明显，平均出水COD从114 mg/L降至77.3 mg/L，平均COD去除率从24.40%升至50.90%；平均氨氮去除率从31.89%提高至76.07%；深度处理聚铁用量为1.35 kg/m3，出水COD基本稳定在30~40 mg/L，平均出水COD为37.4 mg/L、色度为4倍，运行成本较之前可节省1.45 元/m3，两条处理线均采用增效技术后，按处理水量为3×104 m3/d计算，可节约成本1 522.50万元/a，实现了园区污水处理厂运行成本下降、出水水质提升的目标。
- Abstract:
- In view of the problems of low biodegradable organic matter content, poor treatment effect of activated sludge system, difficult operation and high cost of advanced treatment after treatment by upstream enterprises in the industrial park, a new biodegradation system was constructed by bioaugmentation technology. The actual operation results show that the COD of aerobic effluent decreased significantly compared with that of ordinary biochemical effluent. The average effluent COD decreased from 114 mg/L to 77.3 mg/L, and the average COD removal rate increased from 24.40% to 50.90%. The average ammonia nitrogen removal rate increased from 31.89% to 76.07%. The dosage of poly iron in advanced treatment is 1.35 kg/m3, the effluent COD is basically stable at 30 mg/L to 40 mg/L, the average effluent COD is 37.4 mg/L, the chroma is 4 times, and the operation cost can be saved by 1.45 yuan/m3 compared with before. After the two lines adopted the bioaugmentation technology, the annual cost is saved by 15.225 million yuan according to the daily treatment of 3×104 m3, so as to realize the goal of reducing the operation cost of sewage treatment plant and improving the effluent quality in the industrial park.
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