纯膜MBBR+A/O双泥系统用于制药废水脱氮工程  

Application of Pure MBBR and A/O Double Sludge System in Pharmaceutical Wastewater Denitrification Project

作　　者：肖宁 唐国卿 周家中 杨忠启 管勇杰 韩文杰 周浩然 吴迪 李振红 XIAO Ning;TANG Guo-qing;ZHOU Jia-zhong;YANG Zhong-qi;GUAN Yong-jie;HAN Wen-jie;ZHOU Hao-ran;WU Di;LI Zhen-hong(North China Municipal Engineering Design&Research Institute Co.Ltd.,Tianjin 300381,China;Capital AihuaMunicipal and Environmental Engineering Co.Ltd.,Tianjin 300060,China;Qingdao SPRING Water Treatment Co.Ltd.,Qingdao 266510,China)

机构地区：[1]中国市政工程华北设计研究总院有限公司,天津300381 [2]首创爱华<天津>市政环境工程有限公司,天津300060 [3]青岛思普润水处理股份有限公司,山东青岛266510

出　　处：《中国给水排水》2022年第14期93-98,共6页China Water & Wastewater

摘　　要：某制药废水处理厂进行扩容提标改造时面临的难题有氨氮去除率高、进水有毒有害物质浓度高、无新增用地、水质水量波动大以及工程施工困难等。采用纯膜MBBR工艺对系统进行原池改造,将已有A/O活性污泥脱氮工艺改造为纯膜MBBR+A/O脱氮双泥系统。实际运行效果显示,纯膜MBBR可有效削减进水氨氮负荷,硝化能力达到0.45 kgN/(m^(3)·d),正常运行系统出水氨氮<5 mg/L,实现了药厂提质增产的目标,保障了实际出水水质的稳定性。面对进水pH冲击、二氯甲烷冲击、长期低基质运行后进水负荷激增冲击等,纯膜MBBR系统受影响程度小,展现了较强的抗毒能力和快速恢复能力。纯膜MBBR池仅通过曝气即可实现系统的充氧、悬浮载体良好流化,风机电耗为1.0~1.8 kW·h/m^(3),占全厂总电耗的20%~35%。纯膜MBBR工艺具备负荷高、耐冲击能力强的优势,适用于高氨氮工业废水的处理。In view of the problems faced by a pharmaceutical sewage treatment plant during expansion and upgrading,including high ammonia nitrogen removal rate,high concentration of toxic and harmful substances in the influent,no new land use,large fluctuation of water quality and quantity,and difficulties in project construction,the pure MBBR process is used to innovate the original biochemical tank.The existing A/O activated sludge denitrification process is transformed into a double sludge system of pure MBBR and A/O denitrification.The actual operation results show that the pure MBBR can effectively reduce the influent ammonia nitrogen load,the nitrification capacity reaches 0.45 kgN/(m^(3)·d)and the effluent ammonia nitrogen is less than 5 mg/L during normal operation,which realizes the goal of improving quality and production of the pharmaceutical factory and ensures the stability of the actual effluent quality.Faced with the impact of influent pH,dichloromethane,and surge of influent load after long-term low substrate operation,the pure MBBR system is less affected and exhibits strong anti-toxicity and rapid recovery capabilities.The pure MBBR tank can realize the oxygenation of the system and good fluidization of suspended carrier only through aeration.The power consumption of the blower is 1.0-1.8kW·h/m^(3),accounting for 20%-35%of the total power consumption of the whole plant.The pure MBBR process has the advantages of high load and strong impact resistance,which is suitable for the treatment of high concentration ammonia nitrogen industrial wastewater.

关 键 词：纯膜MBBR 高氨氮 制药废水 pH冲击 工业废水 毒性冲击 

分 类 号：TU992[建筑科学—市政工程]