摘要
本文以污水处理厂的生活污水和污泥为试验对象,室内进行了100d试验,分析了短程硝化反硝化技术在处理污水时污染物浓度随时间变化情况,结果表明,通过构建周期性的厌氧/低氧环境后,60d内可试验该装置的启动,随后通过构建厌氧/缺氧/低氧环境,最终出水中PO_(4)^(-)P浓度在0.5mg·L^(-1)以下、COD浓度在30mg·L^(-1)以下、NH_(3)-N浓度在0.2mg·L^(-1)以下,PO_(4)^(-)P及NH_(3)-N去除率都在90%以上,COD去除率在85%以上。研究结论可为进一步了解短程硝化反硝化技术处理污水污染物机理提供理论参考。
This article takes domestic sewage and sludge from sewage treatment plants as the test objects.A 100-day experiment was carried out indoors to analyze the pollutant concentration changes with time when the short-cut nitrification and denitrification technology treats sewage.The results showed that:by constructing periodic the startup of the device can be tested within 60 days after anaerobic/hypoxic environment,and then by constructing an anaerobic/hypoxic/hypoxic environment,the final PO_(4)^(-)P concentration in the effluent is below 0.5mg·L^(-1)and the COD concentration is 30mg·L^(-1)below,the concentration of ammonia nitrogen is below 0.2mg·L^(-1),the removal rate of PO_(4)^(-)P and ammonia nitrogen is above 90%,and the removal rate of COD is above 85%.The research conclusions can provide a theoretical reference for further understanding the mechanism of short-cut nitrification and denitrification technology in treating sewage pollutants.
作者
毛霖
荆黎
MAO Lin;JING Li(SPIC Yuanda Environmental-Protection Science&TechnologyBranch,Chongqing 401122,China)
出处
《化学工程师》
CAS
2022年第10期41-44,共4页
Chemical Engineer
基金
国家电力投资集团公司C类科技项目(2021-KYC-004-YD-KJ-X):光芬顿生物法处理生活垃圾填埋场渗滤液浓缩液工艺研究。
关键词
短程硝化
反硝化除磷
COD
氨氮
short-cut nitrification
denitrification and phosphorus removal
COD
ammonia nitrogen
