水力负荷对地下渗滤系统净化效果及气体释放的影响  

Effect of hydraulic load on pollutants removal and gases emission of subsurface infiltration system

作　　者：潘晶 高蕊 郑翻萍 张智宇 夏语擎 姜晓业 佟德利 PAN Jing;GAO Rui;ZHENG Fanping;ZHANG Zhiyu;XIA Yuqing;Jiang Xiaoye;TONG Deli(College of Life Science,Shenyang Normal University,Shenyang 110034,China;Jingtai County Landscape Administration Bureau of Baiyin City in Gansu Province,Baiyin 730400,China)

机构地区：[1]沈阳师范大学生命科学学院,沈阳110034 [2]甘肃省白银市景泰县园林管理局,甘肃白银730400

出　　处：《沈阳师范大学学报（自然科学版）》2022年第3期270-276,共7页Journal of Shenyang Normal University:Natural Science Edition

基　　金：辽宁省“百千万人才工程”资助项目(2019921076);辽宁省科技厅自然科学基金资助项目(2018050655);沈阳市科学技术计划项目(21-108-9-36)。

摘　　要：地下渗滤系统(subsurface infiltration system,SIS)是以生态学原理为基础的好氧与厌氧相协同的污水处理技术。研究了不同水力负荷对2种不同渗滤基质的SIS(1^(#)SIS:活性污泥、草甸棕壤、炉渣;2^(#)SIS:生物炭、活性污泥、草甸棕壤、炉渣)污水净化效果及对气体释放的影响。研究结果表明:1^(#)SIS和2^(#)SIS中COD,NH_(4)^(+)-N和TP的去除率随着水力负荷的增加而降低,气体的释放速率随着水力负荷的增加而升高。在相同的水力负荷下,2^(#)SIS的净化效果优于1^(#)SIS。1^(#)SIS和2^(#)SIS的最佳水力负荷均为0.04 m^(3)·(m^(2)·d)^(-1);在0.04 m^(3)·(m^(2)·d)^(-1)的水力负荷下,1^(#)SIS中COD,NH_(4)^(+)-N和TP的平均去除率分别为87.6%,94.2%和84.8%,2^(#)SIS中COD,NH_(4)^(+)-N和TP的平均去除率分别为89.0%,95.5%和93.9%;2组系统出水COD,NH_(4)^(+)-N和TP质量浓度均符合《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级标准;1^(#)SIS中CO_(2),CH_(4),NH_(3)和N_(2)的释放速率分别为286.80,20.65,0.31和1.61 mg·(m^(2)·d)^(-1),2^(#)SIS对CO_(2),CH_(4),NH_(3)和N_(2)的释放速率分别为330.90,30.28,0.32和1.63 mg·(m^(2)·d)^(-1)。The subsurface infiltration system(SIS)is an integrated process of aerobic and anaerobic combination wastewater treatment technology based on the ecological principle.In the experiment,the effect of hydraulic loading(0.04,0.08,0.12 and 0.16 m^(3)·(m^(2)·d)^(-1))on pollutants removal and gases emission were studied in two different matrix SISs(1^(#)SIS:activated sludge,meadow brown soil,slag.2^(#)SIS:biochar,activated sludge,meadow brown soil and slag).The results show that COD,NH_(4)^(+)-N,TP removal efficiencies of 1^(#)SIS and 2^(#)SIS decrease with the increase of hydraulic load.However,gases emission rates of 1^(#)SIS and 2^(#)SIS increase with hydraulic load increasing.Under the same hydraulic load,the removal performance of 2^(#)SIS is better than 1^(#)SIS.The optimal hydraulic load of 1^(#)SIS and 2^(#)SIS is 0.04 m^(3)·(m^(2)·d)^(-1).Under this hydraulic load,average removal efficiencies of COD,NH_(4)^(+)-N and TP are 87.6%,94.2%,84.8%in 1^(#)SIS,and are 89.0%,95.5%,93.9%in 2^(#)SIS.The effluent concentrations of COD,NH_(4)^(+)-N and TP met the first level of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants(GB 18918-2002)in two systems.CO_(2),CH_(4),NH_(3) and N_(2) emission rates are 286.80,20.65,0.32,1.61 mg·(m^(2)·d)^(-1) in 1^(#)SIS and are 330.90,30.28,0.32,1.63 mg·(m^(2)·d)^(-1) in 2^(#)SIS.

关 键 词：水力负荷 地下渗滤系统 气体 

分 类 号：X703[环境科学与工程—环境工程]