MBBR处理猪场废水厌氧消化液的研究  

Study on treatment of digested piggery wastewater by moving bed biofilm reactor

作　　者：曹玉成[1] 张妙仙[1] 单胜道[1] 

机构地区：[1]浙江林学院环境科技学院,杭州311300

出　　处：《环境工程学报》2008年第5期591-594,共4页Chinese Journal of Environmental Engineering

基　　金：国家"863"高技术研究发展计划(2006AA06Z344);浙江省科技厅重大专项(2006C13036)

摘　　要：采用移动床生物膜反应器（MBBR）处理猪场废水厌氧消化液,考察了水力停留时间（HRT）,进水COD和NH3-N浓度对反应器处理效果的影响。结果表明,在温度为20～30℃,填料填充比为50%,进水COD和NH3-N浓度分别为1 016 mg/L和496 mg/L条件下,当HRT为12.5 h时,COD和NH3-N去除率可分别达到62%和77%,猪场废水厌氧消化液中可生物降解性有机物基本得到去除,当HRT增至23.8 h时,COD和NH3-N去除率分别为64%和86%,出水COD和NH3-N浓度分别为368 mg/L和70 mg/L,均达到了《畜禽养殖业污染物排放标准》（GB18596-2001）的要求。Moving bed biofilm reactor（MBBR） was used to treat digested piggery wastewater,the influences of hydraulic retention time （HRT） , COD and NH3-N concentrations of influent on the treatment effect were investigated. The results showed that under the conditions of temperature = 20 - 30℃ , carrier volumetric ratio = 50% ,the influent concentration of COD = 1 016 mg/L, the influent concentration of NH3-N =496 mg/L, when HRT was 12.5 h, the removal rates of COD and NH3-N were 62% and 77% respectively, most of biodegradable organic substances in digested piggery wastewater were removed, when HRT extended from 12.5 h to 23.8 h, the removal rates of COD and NH3-N were 64% and 86% respectively, the effluent concentrations of COD and NH3-N were 368 mg/L and 70 mg/L, respectively, meeting the standards of《 Discharge Standard of Pollutants for Livestock and Poultry Breeding》

关 键 词：移动床生物膜反应器 猪场废水厌氧消化液 COD NH3-N 

分 类 号：X703[环境科学与工程—环境工程]