净水技术2024，Vol.43Issue(z1)：288-293,392,7.DOI:10.15890/j.cnki.jsjs.2024.s1.041
缓释除磷材料在低污染负荷湖库水体中长效控磷效果
Long-Term Phosphorus Control Efficacy of Sustained-Release Phosphorus Removal Materials in Low-Pollution-Load Lake and Reservoir Water Bodies
吴沈乾 1吴郑清 1杨宁 2蔡光胜 2林镁清2
作者信息
- 1. 嘉兴市水利投资有限公司,浙江嘉兴 314033
- 2. 同华禹水<上海>科技有限公司,上海 201700
- 折叠
摘要
Abstract
According to the data from the 2022 China Ecological Environment Status Bulletin,the main environmental pollution factor of lakes and reservoirs in China is total phosphorus.Although there are various phosphorus removal materials currently available,their practical applications are susceptible to interference from complex environments,resulting in performance differences compared to laboratory data.Therefore,it is crucial to select a phosphorus removal material with strong adaptability and good purification effects.In this study,efficient sustained-release phosphorus removal material was added to the enclosed water body of 1 000 m2 on the north bank of Jiaxing South Lake,and the total phosphorus concentration in the study area was tracked and detected for one year.The results showed that the original water body had fluctuations in total phosphorus concentration around 0.05 mg/L due to the death and decay of submerged plants and water exchange with external rivers,failing to meet class 111 water quality requirements.After adding the efficient sustained-release phosphorus removal material,the total phosphorus concentration in the experimental area remained stable between 0.02～0.05 mg/L for one year,except for fluctuations caused by water exchange and sediment disturbance during rainfall events.In contrast,the total phosphorus concentration in the non-experimental areas fluctuated between 0.03～0.10 mg/L and 0.04～0.14 mg/L.Additionally,the addition of the efficient sustained-release phosphorus removal material had no significant impact on dissolved oxygen,pH,ammonia nitrogen,and permanganate index.Through field application and continuous monitoring,this study demonstrates the long-term effectiveness of the material in reducing total phosphorus concentration in lake and reservoir waters,providing a new solution and approach for eutrophication control.关键词
湖库/低污染负荷/富营养化/总磷/除磷材料Key words
lake and reservoir/low pollution load/eutrophication/total phosphorus/phosphorus removal material分类
环境科学引用本文复制引用
吴沈乾,吴郑清,杨宁,蔡光胜,林镁清..缓释除磷材料在低污染负荷湖库水体中长效控磷效果[J].净水技术,2024,43(z1):288-293,392,7.
