石化厂皂化废水的厌氧处理  

ANAEROBIC TREATMENT OF SAPONIFICATION EFFLUENT FROM PETROCHEMICAL PLANT

作　　者：周律[1] 张孟青[2] 

机构地区：[1]清华大学环境工程系,北京100084 [2]西安交通大学能源工程系,西安710049

出　　处：《环境工程》1996年第5期10-14,共5页Environmental Engineering

摘　　要：石化厂以氯醇法生产环氧乙烷过程中排出的皂化废水有机物含量高、含盐量高,并呈强碱性.废水中的物质对厌氧微生物产生强烈的抑制.本工艺通过预处理,减轻了抑制程度.采用厌氧工艺作为主要处理工艺,在水力停留时间≥4天,有机容积负荷COD_(Cr)小于2.0kg/m^3·d的条件下,取得了较好的厌氧处理效果.补充好氧接触氧化法作后处理,出水水质满足排放要求.The content of CODCr, salt and pH in effluent from saponification process of petrochemical plant are very high. Substances in the effluent have strong inhibition on anaerobic microorganisms. By pretreatment, the inhibition is decreased. A good result has been achieved under HRT more than 4 days and organic load less than 2.0kgCODCr/m3 · d in UASB reactor. By using aerobic contact process as af-tertreatment, effluent quality meets the discharge standards.

关 键 词：皂化废水 预处理 厌氧降解 后处理 石油化工 

分 类 号：X740.3[环境科学与工程—环境工程]