| 不同基质厌氧折流-垂直流人工湿地(ABR-VFW)对农村生活污水的处理效果 |
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| 引用本文： | 刘娟,谢雪东,张洋,雷平,顾儒馨,倪九派.不同基质厌氧折流-垂直流人工湿地(ABR-VFW)对农村生活污水的处理效果[J].农业环境科学学报,2018,37(8):1758-1766. |
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| 作者姓名： | 刘娟 谢雪东 张洋 雷平 顾儒馨 倪九派 |
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| 作者单位： | 西南大学资源环境学院;遂宁市安居区环境保护局;绵阳师范学院城乡与建设学院 |
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| 基金项目： | 国家自然科学基金项目（41671291）；重庆市社会事业与民生保障科技创新专项项目（cstc2017shms-xdny80062） |
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| 摘 要： | 为筛选不同污染浓度下垂直流人工湿地处理农村生活污水的最优基质,选取4种常见的基质:页岩砖渣(YYZZ)、火山岩(HSY)、生物陶粒(SWTL)和无烟煤(WYM),构建厌氧折流-垂直流人工湿地(ABR-VFW),水力负荷统一设置为4.2 m3·m~(-2)·d~(-1),通过对比分析不同污染浓度(低、中、高)下4种基质对农村生活污水中的有机物(以COD计)、总氮(TN)、总磷(TP)、铵态氮(NH_4~+-N)、硝态氮(NO-3-N)的处理效果,为垂直流人工湿地治理农村生活污水最佳基质的选取提供了合理依据。结果表明:YYZZ对污水中COD和TN的去除率最高,分别为88.12%~95.78%(低浓度)、64.05%~84.09%(中浓度)、61.25%~74.07%(高浓度)和51.98%~55.98%(低浓度)、38.52%~50.84%(中浓度)、47.42%~53.22%(高浓度),其次为WYM和HSY,而SWTL最低;SWTL对农村生活污水中NH_4~+-N和TP的去除率显著高于其他基质,其分别高12%~24%(NH_4~+-N)和13%~23%(TP)。研究表明,对COD和TN含量较高的农村生活污水以YYZZ基质去除效果为佳,而对TP或NH_4~+-N为主的农村生活污水以SWTL基质去除效果为优。
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| 关 键 词： | 厌氧折流-垂直流人工湿地(ABR-VFW) 污染负荷 基质 处理效果 |
| 收稿时间： | 2017/10/24 0:00:00 |
Experimental study on treatment of rural domestic sewage by four substrates anaerobic baffled reactorvertical flow wetlands (ABR-VFW) |
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| LIU Juan,XIE Xue-dong,ZHANG Yang,LEI Ping,GU Ru-xin and NI Jiu-pai.Experimental study on treatment of rural domestic sewage by four substrates anaerobic baffled reactorvertical flow wetlands (ABR-VFW)[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2018,37(8):1758-1766. |
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| Authors: | LIU Juan XIE Xue-dong ZHANG Yang LEI Ping GU Ru-xin and NI Jiu-pai |
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| Institution: | College of Resources and Environment, Southwest University, Chongqing 400715, China,Environmental Protection Bureau of Suining City, Suining 629006, China,College of Resources and Environment, Southwest University, Chongqing 400715, China,College of Resources and Environment, Southwest University, Chongqing 400715, China;College of Urban and Rural Construction, Mianyang Teachers''College, Mianyang 621000, China,College of Resources and Environment, Southwest University, Chongqing 400715, China and College of Resources and Environment, Southwest University, Chongqing 400715, China |
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| Abstract: | In order to select optimal substrates for artificial vertical flow wetlands(VFW)that are used to filter domestic sewage with varying levels of pollution, four common substrates(i.e., shale debris, volcano ash, biological porcelain, and anthracite)were used to construct anaerobic baffled reactor(ABR)-VFWs. Hydraulic load was set uniformly to be 4.2 m3·m-2·d-1. The effects of the four substrates were analysed on three pollution loadings(low, medium, and high concentration)in terms of the chemical oxygen demand(COD), total nitrogen(TN), total phosphorus(TP), and ammonium nitrogen(NH4+-N)of rural domestic sewage. The shale debris substrate reduced the COD of the low, medium, and high-pollution sewage by 88.12%~95.78%, 64.05%~84.09%, and 61.25%~74.07%, respectively, and the TN by 51.98%~55.98%, 38.52%~50.84%, and 47.42%~53.22%, whereas the anthracite and volcano ash substrates were less effective, and the biological porcelain was the least effective. In contrast, the biological porcelain substrate removed NH4+-N and TP from the rural domestic sewage at significantly higher rates than the other substrates. Therefore, shale debris are the most effective substrate for purifying rural domestic wastewater with high COD or TN, whereas biological porcelain is the most effective substrate for purifying wastewater with high TP or NH4+-N. |
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| Keywords: | anaerobic baffled reactor-vertical flow wetland pollution load matrix purification effect |
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