医院污水处理系统研究与工程实践

Research on the sewage treatment and engineering practice in hospital

目的:针对医院污水水质特点进行达标排放,防止污染环境和危害人类健康。方法:通过测定医院污水水质成分并进行分析研究,采用水解酸化+生物接触氧化+ClO2组合工艺处理综合性医院污水。结果:工程实践结果表明,出水水质指标CODCr、BOD5、SS、NH3-N分别为39.3mg/L、18.5mg/L、20.2mg/L、6.3mg/L,类大肠菌群数为68.0cfu/L,pH值为7.2,均优于污水综合排放标准(GB8978-1996)的一级标准限值。结论:该工艺系统运行稳定,处理效果良好,能够完全杀灭致病微生物及病毒且处理成本较低,适合应用于医院污水处理。

Objective： According to the characteristics of hospital sewage quality, it must be qualified to the standard so that it can prevent environment pollution and human health damage. Methods： The ingredients of hospital wastewater were detected and analyzed. The comprehensive treatment was used by Hydrolytic Acidification combined with Biological Contact Oxidation and ClO2 combination processing. Results： Engineering results showed that COD Cr , BOD5 , SS, NH3-N were 39.3mg/L, 18.5mg/L, 20.2mg/L, 6.3mg/L respectively, the class colorectal flora number and pH were 68.0/L, 7.2 respectively, They were higher than standard value of the Integrated Wastewater Discharge Standard （GB 8978-1996）. Conclusion： The advantages of system were stable operation, eliminating pathogenic microorganisms and viruses completely, good effects and lower processing costs. The process was suitable for the treatment of hospital wastewater.