制革废水处理工程工艺设计

第35卷第9期2006年5月中国皮革CHINALEATHERV01．35No．9May2006制革废水处理工程工艺设计周黎采雷晓慧(商丘市环境监测站，河南商丘476000)摘要：本工程要处理的废水是以羊皮为原料的制革工业废水。针对水质特点，首先进行预处理，而后选择UASB厌氧一CASS好氧生物处理工艺。经处理后，废水达标排放。关键词：制苹废水；生物处理；厌氧一好氧工艺中图分类号IS59文献标识码AProcessDesignofTreatmentEngineeringofWastewaterofTanneryZHOULi．LEIXiao—hui(ShangqiuEnvironmentalMonitoringStation，Shangqiu476000，China)Abstract：Sheepskintannerywastewatertreatmentwasintroducedindetail．Thewastewaterwaspre—treatedaccordingtoitsspecificconditionsandtherelatedcriteria．ThewastewaterthenwasadjustedtOproperqualityandquantityandpre—aeratedinaerationtank．ThesulfideandsomeorganicsubstancewasremovedatthisprmeSs．Theequalizingwastewaterwastreatedbyanaerobic—aerobictechnology．UASBwasusedasanaerobicdisposalunitandCASSastheaerobicdisposalunit．Aftertreat—ment，thewastewaterisinwellaccordancewiththerelatedstandard．Keywords：tannerywastewater；biologicaltreatment；anaerobic—aerobicdisposal前言本工程要处理的废水是以羊皮为原料的制革工业废水，其水质：COD约3000mg／L，BOSs1500mg／L，SS1200mg／L，S2—100mg／L，总铬340mg／L，氨氮100mg／L。处理后应达到013