蒋小梅, 杨项军, 王世雄, 季四平, 蒋峰芝, 黄章杰, 林志国, 陈景. 铁盐沉淀吸附法除磷在云南大学泽湖中的工程化实践[J]. 云南大学学报(自然科学版), 2021, 43(6): 1183-1191. doi: 10.7540/j.ynu.20210453
引用本文: 蒋小梅, 杨项军, 王世雄, 季四平, 蒋峰芝, 黄章杰, 林志国, 陈景. 铁盐沉淀吸附法除磷在云南大学泽湖中的工程化实践[J]. 云南大学学报(自然科学版), 2021, 43(6): 1183-1191. doi: 10.7540/j.ynu.20210453
JIANG Xiao-mei, YANG Xiang-jun, WANG Shi-xiong, JI Si-ping, JIANG Feng-zhi, HUANG Zhang-jie, LIN Zhi-guo, CHEN Jing. Research and engineering practice of phosphorus removal by the method of iron salt precipitation adsorption in Ze Lake of Yunnan University[J]. Journal of Yunnan University: Natural Sciences Edition, 2021, 43(6): 1183-1191. DOI: 10.7540/j.ynu.20210453
Citation: JIANG Xiao-mei, YANG Xiang-jun, WANG Shi-xiong, JI Si-ping, JIANG Feng-zhi, HUANG Zhang-jie, LIN Zhi-guo, CHEN Jing. Research and engineering practice of phosphorus removal by the method of iron salt precipitation adsorption in Ze Lake of Yunnan University[J]. Journal of Yunnan University: Natural Sciences Edition, 2021, 43(6): 1183-1191. DOI: 10.7540/j.ynu.20210453

铁盐沉淀吸附法除磷在云南大学泽湖中的工程化实践

Research and engineering practice of phosphorus removal by the method of iron salt precipitation adsorption in Ze Lake of Yunnan University

  • 摘要: 为探索富营养化湖泊的治理方法,在实验室小试取得成功的基础上,对云南大学呈贡校区泽湖试验区进行了铁盐沉淀吸附法除磷的工程化实践探索. 结果表明,在泽湖水体总磷质量浓度高达1.630 mg/L的情况下,通过喷洒铁盐,3 d内可将水体总磷质量浓度降低至0.284 mg/L,去除率高达80 %;同时,水体pH值可维持在安全的中性至弱碱范围(7.15~8.32)内;其它污染物,诸如粪大肠菌群数、氨氮、总氮、阴离子表面活性剂浓度及高锰酸钾指数亦得到不同程度的降低. 治理后,泽湖试验区域内湖面的视觉、嗅觉得到明显改善,效果良好.

     

    Abstract: To contribute the effective method for eutrophication water, this research took Ze Lake, and engineering practiced the phosphorus removal by the method of ferric salt precipitation adsorption, which based on the success of laboratory experiments. The results indicated that the concentration of total phosphorus reduced to 0.284 mg/L within 3 days (removal rate up to 80 %) by spraying ferric salt while the original value as high as 1.630 mg/L. Meantime, the pH of water body maintained within the safe range of neutral to weak alkaline range (7.15−8.32). In addition, other pollutants such as fecal coliform count, ammonia nitrogen, total nitrogen, anionic surfactant concentration and potassium permanganate index were also decreased to varying degrees. Last, the visual and olfactory in Ze Lake that obtained obviously improvement, as well as the overall water quality.

     

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