模拟土地处理系统对再生水中氨氮去除效率对比研究——以准噶尔生态环境观测研究站典型包气带土壤为例  

Comparative Study on the Removal Efficiency of Ammonia Nitrogen in Reclaimed Water by Simulated Land Treatment System——Taking the Soil in Typical Vadose Zone at Junggar Ecological Environment Observation Station as an example

作　　者：茉莉得尔.金斯汗 王晓愚 赵晨曦 Molideer·JINSIHAN;WANG Xiao-yu;ZHAO Chen-xi(Xinjiang Academy of Environmental Protection Science,Urumqi,Xinjiang 830011;Xinjiang Key Laboratory for Environmental Pollution Monitoring and Risk Warning,Urumqi,Xinjiang 830011,China)

机构地区：[1]新疆环境保护科学研究院,新疆乌鲁木齐830011 [2]新疆环境污染监控与风险预警重点实验室,新疆乌鲁木齐830011

出　　处：《新疆环境保护》2018年第1期33-37,共5页Environmental Protection of Xinjiang

摘　　要：本文以准噶尔生态环境观测研究站的典型地带土壤和城镇污水处理厂再生水为主要研究对象,通过在室内设计3种模拟土壤柱试验,研究氨氮在土壤柱中的迁移规律,探讨不同深度及不同质地的土壤对氨氮去除效率的影响,并做对比研究。结果表明:土地处理系统对再生水中的氨氮有良好的去除效果,并具有较高的抗冲击负荷能力。各柱在土壤表层30 cm厚度对氨氮的去除效果不明显,出水浓度不稳定,受进水浓度的影响较大。随着深度的增加,在土壤层60 cm厚度,各柱对氨氮的去除率均达到95%左右,出水达到地下水回灌标准。土地处理系统的净化能力主要发生在土层60 cm以内。由于土壤质地的差距,砂柱(柱1)的去除效果最好。系统启动初期,三柱的氨氮出水浓度均不稳定,因此,该装置在运行的初期,不适宜处理进水氨氮浓度<1mg/L的污水。This article,taking the soil in typical zone at Junggar Ecological Environment Observation Station and reclaimed water from urban sewage treatment plant as main research objects,studies the migration regularity of ammonia nitrogen in soil columns,discusses the impact of soil with different depth and texture on the ammonia nitrogen removal efficiency,and makes a comparison,based on 3 indoor simulated soil columns experiment.The results show that,the simulated land treatment system has good removal efficiency of ammonia nitrogen in reclaimed water,and has high impact load resistance.The ammonia nitrogen removal efficiency of all columns is not obvious at a thickness of 30cm on the surface soil,and the effluent concentration is unstable,which is greatly influenced by the influent concentration.As the depth increases,the ammonia nitrogen removal efficiency of all columns is up to about 95%at a thickness of 60cm,and the effluent reaches the ground water recharge standard.The purification ability of land treatment system is mainly in the soil within 60cm.Due to the difference of soil texture,the removal efficiency of sand soil column(column 1)is the best.At the beginning of the system startup,the effluent concentrations of ammonia nitrogen from all three columns are unstable.Therefore,this device is not suitable for sewage with influent concentration of ammonia nitrogen less than 1mg/l in the initial operation stage.

关 键 词：土地处理 再生水 氨氮 去除效率 试验 

分 类 号：X703.1[环境科学与工程—环境工程]