连续流SBR法处理城市污水试验研究  

Study on Treatment of Municipal Wastewater with Continuous Flow SBR System

作　　者：熊建英[1] 杨海真[1] 顾国维[1] 

机构地区：[1]同济大学环境科学与工程学院

出　　处：《中国给水排水》1999年第8期9-15,共7页China Water & Wastewater

基　　金："九五"国家科技攻关课题

摘　　要：采用一种新型污水处理工艺———连续流ＳＢＲ法，对城市污水生物脱氮除磷进行了试验研究。结果表明：该工艺在总ＨＲＴ为１０ｈ、容积负荷为０．５５～０．９ｋｇＣＯＤ／（ｍ３·ｄ）、主曝区污泥负荷为０．５～０．７ｋｇＣＯＤ／（ｋｇＭＬＳＳ·ｄ）时，控制主曝区的ＤＯ在０．２～０．５ｍｇ／Ｌ，便可获得较好的ＣＯＤ和ＴＰ去除效果，出水ＣＯＤ低于５０ｍｇ／Ｌ，去除率达８５％以上，出水ＴＰ可降至０．５ｍｇ／Ｌ以下，去除率＞９０％，但ＮＨ３－Ｎ的去除率只有２０％左右。上述条件不变，将主曝区的ＤＯ提高至１．０～２．０ｍｇ／Ｌ后，系统在保持ＣＯＤ和ＴＰ高去除率的条件下，ＮＨ３－Ｎ去除率达９０％以上。A study on biological nitrogen and phosphorus removal from municipal watewater was carried out with a new kind processcontinuous flow SBR system. The operational condition was the total hydraulic retention time of 10 h ,volumetric load of 0.55～0.90 kgCOD/(m 3 ·d) and sludge load of 0.5～0.7kgCOD/(kgMLSS·d) in the main aeration zone. If dissolved oxygen (DO) in the main aeration zone. If dissolved oxygen (DO) in the main aeration zone was kept at 0.2～0.5mg/L,removal officiency of COD was over 85% and that of total phosphorus (TP) was 90%. However,there was no obvious nitrification occurred, the ammonia removal officiency was only about20%.When DO in the main aeration Zone in creased to 1.0～2.0mg/L,the process showed a good nitrification efficiency, the ammonia removal was over 90% while COD and TP removal still kept high.

关 键 词：城市污水 连续流SBR 生物除磷脱氮 废水处理 

分 类 号：X703[环境科学与工程—环境工程] X799.03