摘要
以贵阳市某污水处理厂扩建工程为案例,阐述了AAO+悬浮填料(IFAS)工艺的选择依据、工艺技术流程和参数,以及其运行效果,对2022年1~12月工艺运行情况分析。运行结果表明:AAO+悬浮填料(IFAS)工艺对COD、NH_(3)-N、TN、TP、SS的去除率分别达到92.3%、98.6%、69.1%、96.2%、96.9%,出水2022年均值COD为9.2 mg/L,NH_(3)-N为0.38 mg/L,TN为8.5 mg/L,TP为0.07 mg/L,SS为4.9 mg/L,其中出水COD、NH_(3)-N及TP优于《地表水环境质量标准》(GB 3838-2002)中的Ⅳ类水体标准,出水TN和SS优于《城镇污水处理厂污染物排放标准》(GB 18918-2002)一级A标。折合直接运行费用为0.33元/m^(3)。说明扩建工程设计中所采用的工艺流程适当,构筑物参数合理,达到设计预期要求。
The application effect of A/A/O+Integrated Fixed-film Activated Sludge Process(IFAS)is discussed and verified based on the case study in the wastewater treatment plant in Guiyang city.Which described the selection basis,technological process and parameters of the A/A/O+IFAS process,as well as its operation effect,the process operation from January to December in 2022 was analyzed.The results show that the removal rates of COD,NH3-N,TN,TP and SS by AAO+IFAS process are 92.3%,98.6%,69.1%,96.2% and 96.9%,respectively.The average COD of effluent in 2022 is 9.2 mg/L,NH_(3)-N is 0.38 mg/L,TN is 8.5 mg/L,TP is 0.07 mg/L,SS is 4.9 mg/L.The sewage treatment of COD,NH_(3)-N,TP are better than the class Ⅳ surface waters in Table 1 GB3838-2002,the sewage treatment of TN and SS is better than the class Ⅰ A discharge standard in Table 1 of GB18918-2002.The direct operating cost is 0.33 Yuan/m3.All above Results show that the technological process adopted in the design of the extension project is proper and the parameters of the structure are reasonable,which meets the design requirements.
作者
卢茜
吴永贵
秦仕亿
LU qian;WU Yonggui;QIN Shiyi(College of Resources and Environmental Engineering,Guizhou University,Guiyang 550000,China;Guizhou Zhuxin Water Environment Co.,Ltd.,Guiyang 550000,China)
出处
《水处理技术》
CAS
CSCD
北大核心
2024年第12期140-145,共6页
Technology of Water Treatment
基金
贵州大学科研计划专项项目“人工湖富营养化水体复合生态净化与水质长效维持关键技术集成与示范-以贵州大学阅湖为例”(贵大科合[2017]65,贵大党会[2017]23-11号,贵大专会[2017]65号)
贵州省百层次创新人才培养计划项目(黔科合平台人才[2020]6002-2)。
关键词
污水处理
AAO+悬浮填料(IFAS)工艺
工艺设计
去除效率
wastewater treatment
A/A/O+integrated fixed-film activated sludge process
process design
removal efficiency
