A/O+膜炭生物反应器处理制膜废水工程实例  

Engineering example of A/O+membrane carbon bioreactor treating membrane-making wastewater

作　　者：戚广贤 王建明 陈顺权 QI Guangxian;WANG Jianming;CHEN Shunquan(Guangdong Key Laboratory of Membrane Materials and Membrane Separation,Guangzhou Institute of Ad-vanced Technology,Guangzhou 511458,China;Shenzhen Institutes of Advanced Technology,Chinese Academy of Sciences,Shenzhen 518055,China)

机构地区：[1]广州先进技术研究所,广东省膜材料与膜分离重点实验室,广东广州511458 [2]中国科学院深圳先进技术研究院,广东深圳518055

出　　处：《工业水处理》2023年第12期188-192,共5页Industrial Water Treatment

基　　金：中国科学院科技服务网络计划(STS计划)区域重点项目(KFJ-STS-QYZX-043);深圳市科技计划可持续发展专项(KCXFZ20201221173402006)。

摘　　要：随着膜技术的发展,制膜过程中会产生大量难降解有机废水,开发高效实用的处理工艺以保障膜行业的绿色发展显得十分迫切。采用A/O+膜炭生物反应器(MCBR)一体化设备处理某膜材料生产企业产生的N,N-二甲基乙酰胺(DMAc)废水。项目处理水量为30 m^(3)/d,整体占地面积仅为36 m^(2),建造时间短,生化调试简单,启动快,整体调试驯化时间在2个月内完成。在进水COD为1 800~3 100 mg/L,TN为120~180 mg/L情况下,经膜炭生物反应器处理后出水COD为200~400 mg/L,TN<40 mg/L,COD去除率在90%左右,TN去除率>70%,出水水质优于广东省地方标准《水污染物排放限值》(DB 44/26—2001)第二时段Ⅲ级标准。经济性分析表明,制膜废水综合处理成本为1.99元/m^(3),低于“铁碳耦合Fenton氧化-混凝沉淀”和BDD电催化氧化法。A/O+膜炭生物反应器的稳定运行为难生化膜废水的处理提供了参考工艺。With the development of membrane technology,a large amount of refractory organic wastewater will be produced in the process of membrane production.It is very urgent to develop efficient and economic processing technology to ensure the green development of membrane industry.The A/O+membrane carbon bioreactor integrated equipment was used to treat the N,N-dimethylacetamide(DMAc)wastewater produced by a membrane material production enterprise.The water treatment capacity of the project was 30 m^(3)/d.The overall floor area was only 36 m^(2),while the project had a lot of characteristic such as easy to operate,start-up quickly,construction fast.The overall commissioning and domestication had been completed within 2 months.When the COD of influent water was 1800-3100 mg/L and the TN was 120-180 mg/L,the COD of effluent water was 200-400 mg/L and the TN was<40 mg/L,the removal rate of COD was about 90%and the removal rate of TN was above 70%,the effluent quality was far superior than the tertiary standard of the second period of Guangdong provincial standard of Discharge Limits of Water Pollutants(DB 44/26—2001).The total cost of wastewater treatment was 1.99 yuan/m³,which was lower than“iron-carbon coupling Fenton oxidation-coagulation precipitation”process and BDD electrocatalytic oxidation method.The stable operation of A/O+membrane carbon bioreactor provided a reference technical path for the treatment of refractory biochemical membrane-making wastewater.

关 键 词：制膜废水 DMAC 厌氧生化 膜炭生物反应器 

分 类 号：X703[环境科学与工程—环境工程]