摘要
某奶牛养殖场因生产工艺改变,导致过量COD排入废水收集系统,使污水处理站不能正常运转。为达到GB 18918—2002《城镇污水处理厂污染物排放标准》一级A要求,需对现有污水处理系统进行改扩建,以满足现有水量和水质处理要求。该奶牛养殖场污水CODCr浓度高,可生化性强,应用EGSB反应器,采用典型A2/O生化处理工艺,辅以臭氧深度氧化处理,可以实现排放水达到《城镇污水处理厂污染物排放标准》一级A标准。奶牛养殖场周边无农田灌溉条件,必须将养殖废水深度处理后达标排放。应用本工艺,不仅实现排放水达标,而且为企业争取了更宽松的发展环境,极大地促进了企业的发展。
With the changing of production process in cow farm,the sewage treatment station has been overburdened due to large amounts of sewage.In order to meet the Standard A of ＂Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant＂（GB 18918—2002）,reform current sewage treatment system.The sewage contains high-concentration CODCr and the biodegradability is strong.Adopting expanded granular sludge bed（EGSB） reactor and typical A2/O biochemical treatment process supplemented by ozone deep oxidation,the sewage could be treated to meet the Standard A.The irrigation conditions of farmland surrounding this cow farm is poor,that means the treated water could be used to irrigate farmland.The new production process creates a favorable development environment and greatly promotes the development of enterprise.
出处
《洁净煤技术》
CAS
2012年第2期105-108,共4页
Clean Coal Technology
