强化垂直潜流人工湿地氨氮去除试验研究  

ENHANCED AMMONIA NITROGEN REMOVAL IN VERTICAL-FLOW CONSTRUCTED WETLAND

作　　者：杜晓丽[1] 徐祖信[2] 郑磊[3] 

机构地区：[1]北京建筑工程学院环境与能源工程学院城市雨水系统与水环境教育部重点实验室,北京100044 [2]同济大学(环境科学与工程学院水环境综合整治研究所,上海200092 [3]北京市环境保护局污染防治处,北京100048

出　　处：《水处理技术》2013年第8期99-101,105,共4页Technology of Water Treatment

基　　金：水体污染控制与治理国家科技重大专项(2010ZX07320-002);北京建筑工程学院校设科学研究基金(101200902);上海市科学技术委员会攻关项目(06dz12311)

摘　　要：引入空气导管强化垂直潜流人工湿地复氧效果,进而提高其处理高氨氮农村生活污水时的氨氮去除能力。在连续一个月的跟踪考察试验中发现垂直潜流人工湿地引入空气导管后,氨氮平均去除率可达87.05%,出水氨氮质量浓度达到城镇污水处理厂污染物排放标准(GB 18918-2002)一级B排放标准;引入空气导管可显著提高垂直潜流人工湿地大气复氧能力,强化复氧量约为1.22 g/(m2.h);基质内部通气状况更有利于硝化细菌繁殖生长,硝化能力比传统垂直潜流人工湿地提高近一倍。An air pipe was introduced in vertical-flow constructed wetland for high-strengthen rural wastewater treatment to enhance air oxygenation and improve ammonia nitrogen removal.One month experiments were developed in the vertical-flow constructed wetland with an air pipe,the results showed that average ammonia nitrogen removal rates achieved 87.05% and ammonia nitrogen concentration in effluent achieved the standard B of discharge standard of pollutants for municipal wastewater treatment plant.Air oxygenation was increased because of the air pipe in the vertical-flow constructed wetland.Oxygen supply by the air pipe was 1.22 g/（m2.h）.Both nitrifying bacteria growth and nitrification potential were enhanced.Nearly,doubling of nitrification ability than conventional vertical-flow constructed wetland was achieved.

关 键 词：垂直潜流人工湿地 氨氮 硝化作用 空气导管 

分 类 号：X703.1[环境科学与工程—环境工程]