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利用浓缩污泥对污水中污染物的连续回收试验

苏 翌 袁林江

苏 翌, 袁林江. 利用浓缩污泥对污水中污染物的连续回收试验[J]. 环境科学研究, 2011, 24(12): 1422-1429.
引用本文: 苏 翌, 袁林江. 利用浓缩污泥对污水中污染物的连续回收试验[J]. 环境科学研究, 2011, 24(12): 1422-1429.
SU Yi, YUAN Lin-jiang. Applying Condensed Sludge to Reclaim Pollutants from Wastewater in a Continuous Flow Reactor[J]. Research of Environmental Sciences, 2011, 24(12): 1422-1429.
Citation: SU Yi, YUAN Lin-jiang. Applying Condensed Sludge to Reclaim Pollutants from Wastewater in a Continuous Flow Reactor[J]. Research of Environmental Sciences, 2011, 24(12): 1422-1429.

利用浓缩污泥对污水中污染物的连续回收试验

基金项目: 教育部新世纪优秀人才支持计划(NCET-07-0659);教育部留学回国人员科研启动基金(教外司留[2007]1108号)

Applying Condensed Sludge to Reclaim Pollutants from Wastewater in a Continuous Flow Reactor

  • 摘要: 为了回收污水中的有机物、氮和磷以便资源化,在工艺流程为好氧活化-好氧吸附-厌氧释放连续流处理系统中,研究了浓缩污泥对模拟生活污水中污染物的吸附及污泥中污染物的厌氧释放,确定了活化浓缩污泥所需时间,揭示了吸附段HRT对污泥吸附效果的影响及厌氧释放段pH对污泥中污染物释出的影响. 结果表明,污水厂浓缩污泥好氧活化120 min以上即可提高其对污染物的吸附/吸收能力. 控制吸附段HRT为25~50 min和污泥负荷〔Ns,为投配CODCr量(kg)/污泥量(kg·d)〕为3~5 kg/(kg·d),系统运行良好. 活化污泥对CODCr,NH4+-N和PO43--P的最大去除率分别为86.78%,64.78%和75.5%. 在连续厌氧释放段,pH对各污染物释放的影响不尽相同,在pH为11.0,SRT为3 d的条件下,CODCr,NH4+-N和PO43--P分别被浓缩了3.6,1.3和8.4倍.

     

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出版历程
  • 收稿日期:  2011-04-27
  • 修回日期:  2011-05-19
  • 刊出日期:  2011-12-25

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