基于纳米气泡臭氧氧化的剩余污泥内碳源强化脱氮技术研究  

Enhanced Biological Denitrification by Inner Carbon Source from Excess Sludge Based on Nanobubble Ozone Oxidation Technology

作　　者：薛喆涵 吴海英 韩小蒙 张鑫 宋姗姗 周维奇 马艳[2,3] Xue Zhehan;Wu Haiying;Han Xiaomeng;Zhang Xin;Song Shanshan;Zhou Weiqi;Ma Yan(High School Affiliated to University of Shanghai for Science and Technology,Shanghai 200082,China;Key Laboratory of Interfacial Physics and Technology,Chiness Academy yo Sciences,Shanghai 201800,China;Shanghai Urban Water Resources Development and Utilization National Engineering Center Co,Ltd,Shanghai 200082,China)

机构地区：[1]上海理工大学附属中学,上海200082 [2]中国科学院微观界面物理与探测重点实验室,上海201800 [3]上海城市水资源开发利用国家工程中心有限公司,上海200082

出　　处：《净水技术》2018年第8期82-86,共5页Water Purification Technology

基　　金：中国科学院微观界面物理与探测重点实验室开放课题(CASKL-IPT1604);上海市中央引导地方科技发展专项资金(基于内碳源回收利用的污泥微气泡臭氧氧化快速稳定减量技术研究与装备开发);同济大学环境学院污染控制与资源化研究国家重点实验室开放课题(PCRRF16031)

摘　　要：剩余污泥含有丰富的碳源,因此探索用纳米气泡臭氧处理剩余污泥,将内碳源释放至上清液中并回用至AAO污水处理系统的缺氧段。结果表明,纳米气泡臭氧处理后的剩余污泥上清液SCOD浓度达到1 055 mg/L,SCOD/TN比值为15.8,反映了得到剩余污泥上清液中的内碳源补充的污水有了合适的碳氮比、有利于反硝化。长期试验结果表明,加入内碳源的AAO污水处理装置出水TN浓度由23.1±4.7 mg/L下降至15.0±6.0 mg/L,说明利用纳米气泡臭氧处理后的剩余污泥上清液可以明显提升AAO污水处理系统的脱氮效果。Microbubble ozone was used to treat excess sludge which contained abundant carlDon source. Inner carbon source was released to the supernatant and then transferred to anoxic zone of a AAO waste＇water treatment system. Results showed thatration and SCOD/TN ratio of sludge supernatant ater treatment by microbubble ozone were 1 055 mg/L, indicated denitrification potential of tlie supernatant. During the long-term experiment,TN concntration in ^fluent was decreased from23. 1 ±4. 7 mg/L to 15. 0±6. 0 mg/L due to inner carbon source addition to AAO wastewater treasupernaant ater treatment of microbubble ozone could enhance the denirification efect of the AAO wastewater treatment system.

关 键 词：剩余污泥 纳米气泡臭氧 碳源 污水处理 生物脱氮 

分 类 号：TU992.3[建筑科学—市政工程]