有机负荷对EGSB处理高浓度有机废水的影响  

EFFECT OF ORGANIC LOADING ON TREATMENT OF HIGH STRENGTH ORGANIC WASTEWATER BY EGSB

作　　者：颜智勇[1] 胡勇有[2] 

机构地区：[1]湖南农业大学资源环境学院,湖南长沙410128 [2]华南理工大学环境科学与工程学院,广东广州510640

出　　处：《水处理技术》2007年第4期25-27,49,共4页Technology of Water Treatment

基　　金：广东省科技攻关项目(C31502)

摘　　要：研究了厌氧颗粒污泥膨胀床(EGSB)反应器处理高浓度有机废水过程中的有机负荷变化规律。经过约5个月的运行,结果表明在(30±1)℃下,进水COD浓度在8000～12000mg/L时,进水COD负荷达42.3kgCOD/m·3d,COD去除率可达85%,出水COD浓度在1500mg/L左右;当负荷超过42.3kgCOD/m3·d时,反应器出现酸化,说明该负荷已达到了极限值;当负荷在5kgCOD/m3·d以下,COD浓度在3472～4514mg/L时,进水COD的波动对出水COD的影响不明显,但当负荷在15kgCOD/m3·d以上,COD浓度为4988～8253mg/L时,进水COD的波动将导致工艺运行不稳定和出水基质浓度波动。The change law of organic loading in the course of high strength organic wastewater treatment by expanded granular sludge bed （EGSB） was studied. Through operation for 5 months, it was shown that at （30± 1）℃, with the influent COD concentration of 8000～ 12000 mg/L, the influent COD load could reach to 42.3kgCOD/m^3·d, the effluent COD concentration was about 1500 mg/L and COD removal rate could reach to 85%, when the load exceeded 42.3kgCOD/m^3· d, acidification of the reactor appeared, indicating that the load reached limited value, when load was below 5 kgCOD/m^3·d and COD concentration was 3472- 4514mg/L, the effect of the fluctuation of COD concentration on effluent COD was not obvious, but when load was above 15kgCOD/m^3·d COD concentration was 4988～8253mg/L, COD fluctuation in influent would lead to operational instability and the fluctuation of effluent.

关 键 词：厌氧颗粒污泥膨胀床 高浓度有机废水 有机负荷 COD 

分 类 号：X703.1[环境科学与工程—环境工程]