电催化氧化/EGSB/SBR处理养牛场废水的效能研究  

Treatment of Dairy Cattle Wastewater by Combined Process of Electrocatalytic Oxidation/EGSB/SBR

作　　者：黄琳琳 李姗姗 刘峻峰 冯玉杰 HUANG Lin-lin;LI Shan-shan;LIU Jun-feng;FENG Yu-jie(State Key Laboratory of Urban Water Resource and Environment,School of Environment,Harbin Institute of Technology,Harbin 150090,China)

机构地区：[1]哈尔滨工业大学环境学院城市水资源与水环境国家重点实验室

出　　处：《中国给水排水》2019年第23期105-109,共5页China Water & Wastewater

摘　　要：以哈尔滨市某养牛场混凝后的出水为研究对象,采用电催化氧化/EGSB/SBR工艺对其进行处理,考察了该组合工艺的处理效能。试验结果表明,电催化氧化作为预处理技术能够解除高氨氮对后续生物处理单元的抑制作用,提高生物处理的效果,在Ti/SnO2为阳极、电流密度为25 mA/cm^2条件下,反应3 h后,系统对COD和TN的去除率分别为62.5%和37.3%。EGSB/SBR运行稳定后(EGSB停留时间为24 h,SBR停留时间为8 h),该生物组合工艺对养牛场废水中COD的去除率达到97.4%,出水水质达到《农田灌溉水质标准》(GB 5084—2005)旱作的要求。该组合工艺可以有效降解养殖类废水中的污染物,实现废水的达标排放。The combined process of electro-catalytic oxidation/EGSB/SBR was applied to treat dairy cattle wastewater after coagulation in Harbin,and the treatment performance of the process was investigated.The electro-catalytic oxidation being used as the pretreatment process could relieve the inhibition effect of high concentration ammonia on the subsequent biological treatment units and improve the treatment efficiency.The removal rates of COD and TN were 62.5% and 37.3% after three hours of reaction under the conditions of Ti/SnO2 being used as the anode and current density of 25 mA/cm^2.After the stable operation of EGSB/SBR(HRTs of EGSB and SBR were 24 h and 8 h),the COD removal rate of the biological combined process reached 97.4%.Livestock wastewater could be effectively degraded by the combined process,and the effluent quality could meet the requirements of Standards for Irrigation Water Quality(GB 5084-2005).

关 键 词：养牛场废水 电催化氧化 膨胀颗粒污泥床 序批式活性污泥反应器 

分 类 号：TU992[建筑科学—市政工程]