A/O-MBR工艺调试强化炼化废水脱氮除碳及模拟研究  

A/O-MBR process debugging for enhancing denitrification and decarbonization of refining wastewater and simulation research

作　　者：郭春梅[1] 张晓玉[1] 王业腾 孔繁鑫 贾建伟 陈进富[1] 赵龙 GUO Chunmei;ZHANG Xiaoyu;WANG Yeteng;KONG Fanxin;JIA Jianwei;CHEN Jinfu;ZHAO Long(School of Chemical Engineering and Environment,China University of Petroleum(Beijing),Beijing 102249,China;CSCEC AECOM Consultant Co.,Ltd.,Xi'an 710061,China;Beijing OriginWater Technology Co.,Ltd.,Beijing 102206,China)

机构地区：[1]中国石油大学(北京)化学工程与环境学院,北京102249 [2]中国市政工程西北设计研究院有限公司,陕西西安710061 [3]北京碧水源科技股份有限公司,北京102206

出　　处：《工业水处理》2025年第2期96-103,共8页Industrial Water Treatment

基　　金：住房和城乡建设部研发计划项目(2021-K-111);中国市政西北设计研究院有限公司研究课题(XBSZKY2037)。

摘　　要：以陕西省某石化公司污水处理厂为研究对象,通过调试A/O-MBR中试系统的运行参数优化脱氮除碳处理效果,并基于活性污泥模型(ASMs)建立污水生物处理系统数学模型,对污水处理过程进行模拟研究。运行调试结果表明,优化运行参数后AO5工艺仍不能确保出水达标排放,而将原AO^(5)工艺改为A^(2)O^(4)工艺使缺氧区停留时间由4 h延长至8 h后,在好氧池填料投加比20%,缺氧池100%污泥内回流和200%硝态液回流条件下,出水COD、NH_(4)^(+)-N、TN分别为28.53、0.24、12.22 mg/L,满足《陕西省黄河流域污水综合排放标准》(DB 61/224—2018)中表2其他单位水污染物排放质量浓度限值标准。此外,基于ASMs模型构建的Ind.ASM-Petrochem模型可较为准确地模拟系统对COD和NH_(4)^(+)-N的去除,对TN的模拟则需要进一步提升。In this paper,the sewage treatment plant of a petrochemical company in Shaanxi Province was used as the research object to optimize the effect of nitrogen and carbon removal by adjusting the operating parameters of A/O-MBR pilot system,and the mathematical model of sewage biological treatment system based on the activated sludge models(ASMs)was established to simulate the sewage treatment process.The results of operation and debug-ging showed that the AO^(5) process still could not ensure the effluent meet the standard after optimizing the operation parameters.Then the residence time of the anoxic zone was extended from 4 h to 8 h by changing the original AO^(5) process to A^(2)O^(4) process.Under the conditions of 20%filling ratio in the aerobic tank,100%sludge reflux in the an-oxic tank,and 200%nitrate liquid reflux,effluent COD,NH_(4)^(+)-N,and TN were 28.53 mg/L,0.24 mg/L,and 12.22 mg/L,respectively,which met the concentration limit standards for other units of water pollutants in Table 2 of the Integrated Wastewater Discharge Standard of Yellow River Basin in Shaanxi Province(DB 61/224-2018).In addi-tion,the Ind.ASM-Petrochem model based on the ASMs model could simulate the removal of COD and NH_(4)^(+)-N ac-curately,while further improvement was needed for the simulation of TN.

关 键 词：A/O-MBR 脱氮除碳 停留时间 填料 Ind.ASM-Petrochem模型 

分 类 号：X742[环境科学与工程—环境工程]