在冷季利用人工湿地处理泉州永春县养猪场废水的效果研究

发布时间：2019-04-17 07:09

【摘要】：以福建省泉州市永春县养猪场废水为处理对象,选取10种植物,构建表面流人工湿地系统。于2014年12月10~16日、2015年1月4~10日和1月20~26日、2015年11月3~9日和11月20~26日,进行了5个周期的实验,比较了不同植物配置的人工湿地在冷季对养猪场废水中化学需氧量、氨氮、总氮和总磷的深度处理效果。研究结果表明,不同植物配置的人工湿地对各污染物的去除效果有所差异,2014年12月10~16日,栽种水龙(Ludwigia adscendens)的人工湿地对化学需氧量、氨氮、总氮和总磷的去除率分别为34.4%、63.7%、13.0%和46.8%;栽种黄菖蒲(Iris pseudacorus)的人工湿地对化学需氧量、氨氮、总氮和总磷的去除率分别为78.1%、96.3%、42.0%和26.3%。2015年1月4~10日,栽种水龙的人工湿地对化学需氧量、氨氮、总氮和总磷的去除率分别为59.1%、94.8%、81.9%和19.4%;栽种黄菖蒲的人工湿地对化学需氧量、氨氮、总氮和总磷的去除率分别为53.8%、95.0%、60.4%和75.3%。在10种供试植物中,栽种水龙和黄菖蒲的人工湿地对各污染物的去除效果相对较好,其可以作为深度处理养猪场废水的植物选择。2015年1月20~26日,受温度影响,栽种水龙和黄菖蒲的人工湿地对化学需氧量的去除效果受到明显抑制,但其对氨氮、总氮和总磷仍有一定的去除效果。
[Abstract]:The wastewater from pig farm in Yongchun County of Quanzhou City Fujian Province was selected as the treatment object and 10 species of plants were selected to construct the surface flow constructed wetland system. Five cycles of experiments were conducted on 10-16 December 2014, 4-10 January and 20-26 January 2015, 3-9 November 2015 and 20-26 November 2015. Chemical oxygen demand (COD), ammonia nitrogen (NH3-N) and chemical oxygen demand (COD) in pig farm wastewater with different plant configurations were compared in cold season. The advanced treatment effect of total nitrogen and total phosphorus. The results showed that the removal efficiency of each pollutant in constructed wetland with different plant allocation was different. From December 10 to 16, 2014, the constructed wetland planted with water dragon (Ludwigia adscendens) had chemical oxygen demand, ammonia nitrogen, and chemical oxygen demand. The removal rates of total nitrogen and phosphorus were 34.4%, 63.7%, 13.0% and 46.8%, respectively. The removal rates of chemical oxygen demand, ammonia nitrogen, total nitrogen and total phosphorus were 78.1%, 96.3%, 42.0% and 26.3% respectively in the constructed wetland of Acorus calamus (Iris pseudacorus). January 4-10 2015, The removal rates of chemical oxygen demand, ammonia nitrogen, total nitrogen and total phosphorus in constructed wetland were 59.1%, 94.8%, 81.9% and 19.4%, respectively. The removal rates of chemical oxygen demand, ammonia nitrogen, total nitrogen and total phosphorus in the constructed wetland were 53.8%, 95.0%, 60.4% and 75.3%, respectively. Among the 10 plants tested, the constructed wetland planting water dragon and calamus gladiolus has a relatively good effect on the removal of each pollutant, and it can be used as a plant choice for advanced treatment of pig farm wastewater. From January 20 to 26, 2015, under the influence of temperature, the wetland could be used as a plant choice for advanced treatment of pig farm wastewater. The removal efficiency of chemical oxygen demand was obviously inhibited by the constructed wetland planted with water dragon and calamus, but it still had certain removal effect on ammonia nitrogen, total nitrogen and total phosphorus.
【作者单位】：中国科学院湿地生态与环境重点实验室中国科学院东北地理与农业生态研究所;中国科学院大学;永春县环境保护局;
【基金】：国家重点基础研究发展计划项目(2013CB430401) 泉州市院士专家工作站项目资助
【分类号】：X713

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