低碳氮比进水条件下一体化氧化沟在高原污水处理中的应用及调试  

Application and Debugging of Integrated Oxidation Ditch in Plateau Sewage Treatment Under the Condition of Low Carbon Nitrogen Ratio Influent Water

作　　者：唐昭[1] 樊勇吉 卢英源 陆嘉晖 陈轩 TANG Zhao;FAN Yong-ji;LU Ying-yuan;LU Jia-hui;CHEN Xuan(Guangxi Health Science College,Nanning 530000,China;Scientific Research Academy of Guangxi Environmental Protection,Nanning 530000,China)

机构地区：[1]广西卫生职业技术学院,广西南宁530000 [2]广西壮族自治区环境科学保护研究院,广西南宁530000

出　　处：《环境科技》2023年第6期35-40,46,共7页Environmental Science and Technology

基　　金：广西2021年度重点研发计划项目(桂科AB22035059)。

摘　　要：为揭示一体化氧化沟在高原环境下消纳城市生活污水的特性与机制,以贵州某污水厂的一体化氧化沟污水处理设施为研究对象,通过对该设施在同条件下实现提标改造的可行性进行研究。结果表明,在低进水负荷条件下(ρ(BOD)/ρ(COD)为0.25~0.3),控制氧化沟曝气池中pH值及DO的质量浓度(分别为7.3~7.6,2.1~2.4 mg/L),氧化沟出水即可满足GB 3838-2002一级A标准,后续可从调整污泥回流比、加长污泥泥龄、控制前置厌氧池流速等方面采取措施以提高其脱氮除磷效率。In order to reveal the characteristics and mechanism of integrated oxidation ditch in the plateau environment to absorb urban domestic sewage,the integrated oxidation ditch sewage treatment facility of a sewage plant in Guizhou was studied as the research object,and the feasibility of upgrading the facility under the same conditions was studied.The results indicate that under low influent load conditions(ρ(BOD)/ρ(COD)is 0.25~0.3),the mass concentration of pH value and DO in the oxidation ditch aeration tank(7.3~7.6,2.1~2.4 mg/L,respectively)can be controlled,and the oxidation ditch effluent can meet the GB 3838-2002 first-class A standard.Measures were taken to control the flow rate of the pre-anaerobic tank to improve the nitrogen and phosphorus removal efficiency.

关 键 词：一体化氧化沟工艺 高原污水处理 脱氮除磷 

分 类 号：X5[环境科学与工程—环境工程]