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首页> 外文期刊>Journal of Environmental Science and Health >Treating swine wastewater by integrating earthworms into constructed wetlands
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Treating swine wastewater by integrating earthworms into constructed wetlands

机译：通过将into整合到人工湿地中来处理猪废水

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The aim of this study was to investigate the application of integrating earthworms {Pheretima peguana) into two-stage pilot-scale subsurface-flow constructed wetlands (SFCWs) receiving swine wastewater in terms of their treatment performance, namely organic content, total kjeldahl nitrogen (TKN), and solid reduction as well as the quantity of sludge production. There was a minor difference in terms of removal efficiency according to each parameter when comparing the unit with earthworms to the one without earthworms. Both achieved the TKN, biochemical oxygen demand (BOD), chemical oxygen demand (COD), total volatile suspended solids (TVSS), suspended solids (SS), and total solids (TS) removal by more than 90 %. The earthworms helped in reducing the sludge production on the surface of constructed wetlands 40 % by volume, which resulted in lowering operational costs required to empty and treat the sludge. The plant biomass production was higher in the wetlands without earthworms. Further research could be undertaken in order to effectively apply earthworms inside the wetlands.
机译：这项研究的目的是研究earth（Pheretima peguana）在处理猪废水的两阶段中试规模地下流人工湿地（SFCWs）中的应用，包括其有机物含量，总凯氏氮（ TKN），固体减少量以及污泥产量。将带有the的设备与没有without的设备进行比较时，根据每个参数的去除效率差异很小。两者均达到90％以上的TKN，生化需氧量（BOD），化学需氧量（COD），总挥发性悬浮固体（TVSS），悬浮固体（SS）和总固体（TS）去除率。 helped有助于将人工湿地表面的污泥产量减少40％（体积），从而降低了排空和处理污泥所需的运营成本。没有earth的湿地植物的生物量产量较高。为了有效地在湿地中应用inside，可以进行进一步的研究。

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