基质结构对人工湿地运行性能的影响分析
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摘要
通过比较不同基质结构的水平潜流人工湿地(单层CW1,3层CW3,6层CW6)在不同负荷运行条件下对污染物的去除效果,对影响水平潜流人工湿地净化性能的3个因素——水力负荷、有机负荷和悬浮物负荷开展实验,并利用示踪实验考察运行负荷对系统水力性能的影响。结果表明,在典型高、低2种不同水力负荷(0.16、0.80 m/d)条件下,进水有机负荷(COD、TSS)与去除率呈正相关关系,同时对COD、TSS的去除率具有显著性影响。示踪试验说明多层基质结构人工湿地较单层基质结构人工湿地有延缓系统堵塞的作用,提高系统污染物的去除效果。
By comparing the pollutant removal efficiency of horizontal subsurface flow constructed wetlands(single layer CW1, three layers CW3, six layers CW6) with different substrates under different operating conditions, three factors affecting the purification performance of horizontal subsurface flow constructed wetlands, hydraulic load, organic load and suspended matter load, were experimented and tracer experiments were carried out. The influence of operating load on hydraulic performance of the system was investigated. The results showed that, there was a positive correlation between COD, TSS and removal rate under typical high and low hydraulic loads(0.16 and 0.80 m/d), and the removal rate of COD and TSS was significantly affected. The results of tracer experiment showed that the multi-layer constructed wetland had the effect of delaying system blockage and improving the removal efficiency of pollutants compared with the single-layer constructed wetland.
By comparing the pollutant removal efficiency of horizontal subsurface flow constructed wetlands(single layer CW1, three layers CW3, six layers CW6) with different substrates under different operating conditions, three factors affecting the purification performance of horizontal subsurface flow constructed wetlands, hydraulic load, organic load and suspended matter load, were experimented and tracer experiments were carried out. The influence of operating load on hydraulic performance of the system was investigated. The results showed that, there was a positive correlation between COD, TSS and removal rate under typical high and low hydraulic loads(0.16 and 0.80 m/d), and the removal rate of COD and TSS was significantly affected. The results of tracer experiment showed that the multi-layer constructed wetland had the effect of delaying system blockage and improving the removal efficiency of pollutants compared with the single-layer constructed wetland.
引文
[1]耿彪.曝气潜流湿地填料筛选与净化性能研究[D].江苏:中国矿业大学,2015.
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[8]李紫霞,唐晓丹,崔理华.3种负荷对模拟垂直流人工湿地去除氮、磷效果的影响[J].环境工程学报,2016,10(2):637-642.
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[11]刘人太,李术才,张庆松,等.示踪试验分析方法在地下工程水害治理中的应用研究[J].岩石力学与工程学报,2012,31(4):814-821.
[12]庞菊梅,王树芳,孙彩霞,等.雄县地热田示踪试验的解释及分析[J].城市地质,2011,6(2):12-17.
[13]鲁程鹏,束龙仓,苑利波,等.基于示踪试验求解岩溶含水层水文地质参数[J].吉林大学学报(地球科学版),2009,39(4):717-721.
[14]宋志鑫,白少元,解庆林,等.美人蕉根系对不同基质结构水平潜流人工湿地水力特性的影响[J].环境科学学报,2014(6):1505-1509.
[15]国家环境保护总局《水和废水监测分析方法》编委会.水和废水监测分析方法[M].4版.北京:中国环境科学出版社,2002:211-213.
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[17]陈腾殊,白少元,王敦球,等.基质结构对水平潜流人工湿地净化效果影响[J].环境工程学报,2012,6(10):3449-3454.
[18]RONKANEN-A K,KLOVE B.Hydraulics and flow modelling of water treatment wetlands constructed on peatlands in Northern Finland[J].Water Research,2008,42(14):3826-3836.
[19]SIRIANUNTAPIBOON S,JITVIMOLNIMIT S.Effect of plantation pattern on the efficiency of subsurface flow constructed wetland(SFCW)for sewage treatment[J].Africa Journal Agricultural Research,2007,2(9):447-454.
[20]MALTAIS-LANDRY G,CHZAZRENC F,COMEAU Y,et al.Effects of artificial aeration,macrophyte species,and loading rate on removal efficiency in constructed wetland mesocosms treating fish farm wastewater[J].Journal of Environmental Engineering Science,2007,6(4):409-414.
[21]谢龙,汪德爟,戴昱.水平潜流人工湿地有机物去除模型研究[J].中国环境科学,2009,29(5):502-505
[22]李稹,黄娟,姜磊,等.人工湿地植物根系分泌物与根际微环境相关性的研究进展[J].安全与环境学报,2012,12(5):41-45.
[23]惠斌,顾银海,张金戈.人工湿地强化复氧技术研究现状及设计构想[J].绿色科技,2014(1):153-156.
[24]白少元,宋志鑫,丁彦礼,等.潜流人工湿地基质结构与水力特性相关性研究[J].环境科学,2014(2):592-596.
[25]REN L J,XU L L,ZHANG Y Y,et al.Effects of connection mode and hydraulic retention timeon wastewater pollutants removal in constructed wetland microcosms[J].CLEAN-Soil,Air,Water,2015,43(12):1574-1581.
[26]张翔凌,张晟,贺锋,等.不同填料在高负荷垂直流人工湿地系统中净化能力的研究[J].农业环境科学学报,2007,26(5):1905-1910.
[2]孙文杰,佘宗莲,关艳艳,等.垂直流人工湿地净化污水的研究进展[J].安全与环境工程,2011,18(1):25-28.
[3]王宜明.人工湿地净化机理和影响因素探讨[J].昆明冶金高等专科学校学报,2000,16(2):1-6.
[4]SANI A,SCHOLZ M,BABATUNDE A,et al.Impact of water quality parameters on the clogging of vertical-Flow constructed wetlands treating urban wastewater[J].Water,Air,&Soil Pollution,2013,224(3):1-18.
[5]PLATZER C,MAUCH K.Soil clogging in vertical flow reed beds:Mechanisms,parameters,consequences and solution[J].Water Science&Technology,1991,35(5):175-181.
[6]ZHAO Q Y,SUN G,LAFFERTY C,et al.Optimizing the performance of a lab-scale tidal flow reed bed systems treating agricultural wastewater[J].Water Science&Technology,2004,50(8):65-72.
[7]杜新,施春红,马方曙.有机负荷对潮汐流人工湿地净化农村生活污水的影响[J].生态与农村环境学报,2015,31(3):380-384.
[8]李紫霞,唐晓丹,崔理华.3种负荷对模拟垂直流人工湿地去除氮、磷效果的影响[J].环境工程学报,2016,10(2):637-642.
[9]和丽萍,范泽文,陈静,等.不同水力负荷条件下的人工湿地污染处理效果分析[J].四川环境,2014,33(2):89-94.
[10]王开然,姜光辉,郭芳,等.桂林东区峰林平原岩溶地下水示踪试验与分析[J].现代地质,2013,27(2):454-459.
[11]刘人太,李术才,张庆松,等.示踪试验分析方法在地下工程水害治理中的应用研究[J].岩石力学与工程学报,2012,31(4):814-821.
[12]庞菊梅,王树芳,孙彩霞,等.雄县地热田示踪试验的解释及分析[J].城市地质,2011,6(2):12-17.
[13]鲁程鹏,束龙仓,苑利波,等.基于示踪试验求解岩溶含水层水文地质参数[J].吉林大学学报(地球科学版),2009,39(4):717-721.
[14]宋志鑫,白少元,解庆林,等.美人蕉根系对不同基质结构水平潜流人工湿地水力特性的影响[J].环境科学学报,2014(6):1505-1509.
[15]国家环境保护总局《水和废水监测分析方法》编委会.水和废水监测分析方法[M].4版.北京:中国环境科学出版社,2002:211-213.
[16]中国标准出版社第二辑室.中国环境保护标准汇编水质分析方法[M].北京:中国标准出版社,2001.
[17]陈腾殊,白少元,王敦球,等.基质结构对水平潜流人工湿地净化效果影响[J].环境工程学报,2012,6(10):3449-3454.
[18]RONKANEN-A K,KLOVE B.Hydraulics and flow modelling of water treatment wetlands constructed on peatlands in Northern Finland[J].Water Research,2008,42(14):3826-3836.
[19]SIRIANUNTAPIBOON S,JITVIMOLNIMIT S.Effect of plantation pattern on the efficiency of subsurface flow constructed wetland(SFCW)for sewage treatment[J].Africa Journal Agricultural Research,2007,2(9):447-454.
[20]MALTAIS-LANDRY G,CHZAZRENC F,COMEAU Y,et al.Effects of artificial aeration,macrophyte species,and loading rate on removal efficiency in constructed wetland mesocosms treating fish farm wastewater[J].Journal of Environmental Engineering Science,2007,6(4):409-414.
[21]谢龙,汪德爟,戴昱.水平潜流人工湿地有机物去除模型研究[J].中国环境科学,2009,29(5):502-505
[22]李稹,黄娟,姜磊,等.人工湿地植物根系分泌物与根际微环境相关性的研究进展[J].安全与环境学报,2012,12(5):41-45.
[23]惠斌,顾银海,张金戈.人工湿地强化复氧技术研究现状及设计构想[J].绿色科技,2014(1):153-156.
[24]白少元,宋志鑫,丁彦礼,等.潜流人工湿地基质结构与水力特性相关性研究[J].环境科学,2014(2):592-596.
[25]REN L J,XU L L,ZHANG Y Y,et al.Effects of connection mode and hydraulic retention timeon wastewater pollutants removal in constructed wetland microcosms[J].CLEAN-Soil,Air,Water,2015,43(12):1574-1581.
[26]张翔凌,张晟,贺锋,等.不同填料在高负荷垂直流人工湿地系统中净化能力的研究[J].农业环境科学学报,2007,26(5):1905-1910.