改良厌氧_生物接触氧化处理纺织印染废水_彭继伟

改良厌氧-生物接触氧化处理纺织印染废水彭继伟1,邵云海2,王军波2(1.武汉方元环境科技股份有限公司,湖北武汉　430073;2.增城环保工程公司,广东增城　511300)　　[摘要]采用改良的水解酸化-生物接触氧化工艺处理纺织印染废水。采取了预曝气、污泥回流和分级沉淀等措施,CODCr去除率约为95%,脱色效果可达到97%,最终出水水质达到广州市污水一级排放标准的要求。运行结果表明:该工艺具有剩余污泥少,耐冲击负荷能力强,难降解有机物去除效率高等优点,在纺织印染废水处理中具有实用性。　　[关键词]水解酸化;生物接触氧化;脱色;活性污泥;污泥回流;剩余污泥　　[中图分类号]X791　[文献标识码]A　[文章编号]1005-829X(2002)07-0046-03Treatmentoftextileprintinganddyeingwastewaterbyimprovedanaerobic-biologicalcontactoxidationechnologyPENGJi-wei1,SHAOYun-hai2,WANGJun-bo2(1.WuhanFangyuanEnvironmentalTechnologyCo.,Ltd.,Wuhan430073,China;2.GuangdongZengchengEnvironmentalEngineeringCompany,Zengcheng511300,China)Abstract:Textileprintinganddyeingwastewateristreatedbyimprovedhydrolyticacidification-biologicalcontactoxidationpro-cess.Somestepssuchaspre-aeration,returnsludge,gradedsedimentationandsoonhavebeentaken.TheCODCrremovalrateisabout95%,theefficiencyondecolourizationcanreach97%.TheendeffluentqualitymeetstherequirementofGrade1,DischargeStandardforwastewaterinGuangzhoucity.Therunningresultssh