环境污染治理与修复
张捍民,肖景霓,成英俊,张兴文,杨凤林.强化膜生物反应器脱氮除磷性能对比试验研究[J].环境科学学报,2005,25(2):242-248
强化膜生物反应器脱氮除磷性能对比试验研究
- Comparing experiments on enhancing nitrogen and phosphorus removal in membrane bioreactor
- 基金项目：国家自然科学基金资助(50308004)
- 作者
- 单位
- 张捍民
- 大连理工大学 环境与生命学院, 大连 116024
- 肖景霓
- 大连理工大学 环境与生命学院, 大连 116024
- 成英俊
- 大连理工大学 环境与生命学院, 大连 116024
- 张兴文
- 大连理工大学 环境与生命学院, 大连 116024
- 杨凤林
- 大连理工大学 环境与生命学院, 大连 116024
- 摘要：对序批式运行方式强化膜生物反应器脱氮除磷效果进行了研究.在试验过程中逐渐降低进水CODTN值,提高总氮负荷,比较序批式膜生物反应器和传统膜生物反应器的脱氮除磷性能与膜污染状况.试验结果表明,进水CODTN降至3.8～8.3,总氮负荷提高至0.22kg·m-3·d-1时,传统膜生物反应器无法脱氮,而序批式膜生物反应器通过改变周期、提高交换比等方式,TN和氨氮去除率分别保持在67.6%和9.31%.序批式的运行方式还可以减轻膜污染.
- Abstract：Asequencing batch membrane bioreactor was developed to enhance the nitrogen and phosphorus removal. Its performance was investigated by decreasing the COD/TN of influent and increasing the ammonium nitrogen loads gradually to study its characteristics in nitrogen and phosphorus removal and the membrane fouling with the conventional membrane bioreactor systems. When the COD/TN of influent was decreased to 3.8～8.3 and ammonium nitrogen loads was 0.22kg·m-3·d-1, the TNand ammonium nitrogen removal efficiencies of SBMBR(sequencing batch membrane bioreactor) could be maintained at 67.6% and 93.1%, respectively, by changing the running period and increasing the change ratio, etc. Whereas the conventional membrane bioreactor could not work so well. The sequencing batch operation of membrane bioreactor could also reduce the membrane fouling.
- Key words：sequencing batch membrane bioreactor(SBMBR) nitrogen and phosphorus removal membrane fouling
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