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作 者:张立秋[1,2] 吴丹[1] 张朝升[1,2] 刘思宇[1] 张可方[1,2] 李淑更[2] ZHANG Li-qiu WU Dan ZHANG Chao-sheng LIU Si-yu ZHANG Ke-fang LI Shu-geng(School of Civil Engineering, Guangzhou University, Guangzhou 510006, China Key Laboratory for Water Quality Security and Protection in Pearl River Delta 〈 Ministry of Education and Guangdong Province〉, Guangzhou University, Guangzhou 510006, China)
机构地区:[1]广州大学土木工程学院,广东广州510006 [2]广州大学教育部广东省珠江三角洲水质安全与保护实验室,广东广州510006
出 处:《中国给水排水》2016年第23期61-64,共4页China Water & Wastewater
基 金:国家自然科学基金资助项目(51178125;51478127);广州市科技计划项目(201510010051);广东省科技计划项目(2012B03080005;1211051900001)
摘 要:采用序批式生物膜反应器(SBBR)同步硝化反硝化(SND)技术处理南方地区微污染水源水,通过控制温度在28~31℃、低DO浓度和较高pH值实现了SND,重点考察了DO浓度和pH值对系统脱氮效果的影响。结果表明,当DO浓度为0.3~1.1 mg/L时,对NH_4^+-N和TN的去除效果较好,平均去除率分别为91.9%和85.3%;当pH值为8.0±0.1时,系统的脱氮效果最好,对NH_4^+-N和TN的平均去除率分别可达93.9%和92.3%。在最佳工况条件下,出水氨氮和TN浓度均可达到《地表水环境质量标准》(GB 3838—2002)的Ⅲ类水质要求。The simultaneous nitrification and denitrification (SND)in a designed sequencing biofilm batch reactor (SBBR) was used to treat the micro-polluted source water in the south of China. The simultaneous nitrification and denitrification was achieved at temperature of 28 ℃ to 31℃, low dissolved oxygen (DO) and high pH value. The effects of DO and pH value on SND were investigated. The results indicated that when DO was 0.3 to 1.1 mg/L, the removal efficiencies of ammonia nitrogen and TN were the best, with average removal rates of 91.9% and 85.3%. When pH was 8.0 ±0.1, the removal efficiencies of ammonia nitrogen and TN were the best, with average removal rates of 93.9% and 92.3%. Under the optimal conditions, the effluent concentrations of ammonia nitrogen and TN could both meet the class m criteria specified in the Environmental Quality Standards for Surface Water (GB 3838 -2002).
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