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水温对慢滤池深度处理污水的性能影响
  • 期刊名称:环境工程学报
  • 时间:0
  • 页码:2437-2440
  • 语言:中文
  • 分类:X703.1[环境科学与工程—环境工程]
  • 作者机构:[1]北京工业大学建筑工程学院水质科学与水环境恢复工程北京市重点实验室,北京100124
  • 相关基金:国家自然科学基金资助项目(50808002); 北京市科技新星计划项目(2008B11)
  • 相关项目:生物膜滤池去除再生水中DEHP的吸附过滤生物降解机制
中文摘要:

当前国内很多地方都将曝气生物滤池用于污水深度处理和回用。从保障再生水安全的角度出发,采用小试装置,对曝气生物滤池去除典型环境激素——邻苯二甲酸二(2-乙基己基)酯的效能进行了研究。结果发现,采用厚度1 000 mm的石英砂做滤料,在滤速0.5 m/h的条件下,进水邻苯二甲酸二(2-乙基己基)酯在5-35μg/L范围内时,即使浓度波动很大,曝气生物滤池出水邻苯二甲酸二(2-乙基己基)酯可稳定在5μg/L左右,表现出良好的适应能力。滤速升高时,曝气生物滤池去除的邻苯二甲酸二(2-乙基己基)酯能力稍有下降。实验证明了曝气生物滤池在去除邻苯二甲酸二(2-乙基己基)酯方面的良好性能。

英文摘要:

Biological aerated filter is widely used in China as an advanced wastewater treatment technology.To evaluate the safety of its effluent,a pilot scale biological aerated filter with 1 000 mm hight quartz sands as filter bed was built in our lab to polish the secondary effluent of a sequencing batch reactor which was fed with domestic wastewater.The concentrations of di(2-ethylhexyl) phthalate(DEHP)in the influent and effluent of the biological aerated filter were carefully determined under different operational conditions.All results showed that,at the filtration rate of 0.5 m/h and the influent concentration of DEHP varied between 5~35 μg/L drasticly,the effluent concentration of DEHP was stable at 5 μg/L.With proper design and operation,biological aerated filter is a feasible technology for DEHP removal.

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