摘要
采用活性污泥法水解酸化～MBR组合工艺处理某制药企业高浓度难降解生产废水，试验结果表明：出水CODCr在适宜的生化温度条件下只能达到当前800mg／L的排放标准。组合工艺出水中残留有机污染物主要为苯环、杂环和C18-28直链烃等难降解有机污染物。这些有机污染物主要来自生产原料和生产反应中间产物，但也有少数物质是在．Y-段废水排放时由可生物降解物质混合反应而生成。因此应提高生产原料的回收率，同时对工段废水的排放方式进行优化组合。
Combined process of activated sludge-hydrolysis acidification-MBR was employed to treat the high concentration persistent pharmaceutical wastewater. Results revealed that, within suitable temperature range, the treated water quality could meet the existing emission standard of CODer below 800 mg/L. Organic pollutants remained in the effluent were refractory benzene series, heterocyclic compounds and linear hydrocarbon containing 18 to 28 carbons, most of which stem from raw material and intermediate products, but a few from reaction of biodegradable materials from different units. In order to meet the new emission requirement, therefore, it is key and fundamental to improve the recovery rate of raw material, as well as to optimize the discharge of wastewater from different units.
出处
《给水排水》
CSCD
北大核心
2010年第9期158-161,共4页
Water & Wastewater Engineering
基金
“十一五”国家科技支撑计划(2006BAC02A16)
浙江省重大科技成果转化(2008C16026)
嘉兴市科技计划项目(2007AY1016)
关键词
制药废水
MBR
活性污泥法
水解酸化
Pharmaceutical wastewater
MBR
Activated sludge
Hydrolysis acidification
