ASBBR反应器处理高盐榨菜废水的效能研究  

Research on Efficiency of Anaerobic Sequencing Batch Biofilm Reactor for Hypersalt Mustard Tuber Wastewater Treatment

作　　者：周健[1] 甘春娟[1] 龙腾锐[1] 柴宏祥[1] 

机构地区：[1]重庆大学三峡库区生态环境教育部重点实验室,重庆400045

出　　处：《中国给水排水》2006年第17期77-80,共4页China Water & Wastewater

基　　金：重庆市科委攻关项目(7986)

摘　　要：采用ASBBR反应器作为高盐(10 gC l-/L)、高有机物浓度(COD为4 000 mg/L)榨菜废水的厌氧处理单元,考察了挂膜密度、负荷、水温等对去除COD的影响。结果表明:当水温为30℃、挂膜密度为50%时,分别在0.22 kgCOD/(m3.d)和4 kgCOD/(m3.d)的负荷下运行,相应的出水COD为95 mg/L和1 520 mg/L,分别满足直接排放和后续脱氮工艺对碳源的要求。当水温为10℃时,反应器对COD的去除率较30℃的下降了32%,将挂膜密度提高到70%可使COD去除率增加约4.5%;此外,向废水中投加0.1 mmol/L的甜菜碱,可提高COD去除率约9.5%。Anaerobic sequencing batch biofilm reactor （ASBBR） , an innovative anaerobic treatment teehnique, was used to treat eomposite mustard tuber wastewater with high eoneentration organie substances （COD 4 000 mg/L）, high salt （ 10 gCl^- /L） and high nitrogen. The results in various operational conditions are as follows ： ① When the water temperature is 30 ℃ and the biofilm density of the reactor is 50%, the reactor operates with loading rates of 0.22 kgCOD/（m^3 · d） and 4 kgCOD/（m^3 · d） respectively, and the effluent COD is 95 mg/L and 1 520 mg/L respectively, satisfying the demand of direct discharge and denitrification. ② When the water temperature is 10 ℃, the COD removal rate can deerease by 32% , thus increasing the biofilm density to 70% , it ean also inerease COD removal rate by 4.5% ; furthermore, when 0.1 mmol/L of betaine is added into the wastewater, the COD removal rate ean inerease by 9.5%.

关 键 词：榨菜废水 厌氧 ASBBR 甜菜碱 

分 类 号：X792[环境科学与工程—环境工程]