沙漠公园弱盐碱化水体治理工程设计与实践  被引量:1

Treatment Project Design for Weakly Saline Water Bodies in Desert Parks and Practice

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作  者:冯喻 张文磊 许玉凤 张华俊 FENG Yu;ZHANG Wenlei;XU Yufeng;ZHANG Huajun(School of Tourism and Resource Environment,Qiannan Normal University for Nationalities,Duyun 558000,China;Guangdong Nore Detection Technology Co.,Ltd.,Guangzhou 510000,China)

机构地区:[1]黔南民族师范学院旅游与资源环境学院,贵州都匀558000 [2]广东诺尔检测技术有限公司,广东广州510000

出  处:《人民珠江》2022年第8期35-40,共6页Pearl River

基  金:贵州省教育厅创新群体重大研究项目(黔教合KY字〔2016〕055)。

摘  要:通过构建完整水生态系统对内蒙古高原盐碱化公园水体进行富营养化治理。通过水体酸碱调节,在湖体构建水生植物群落和水生动物群落,辅以功能菌剂构建和恢复微生物群落,并通过现场维护措施保障生态系统稳定发展。工程效果表明:水生态系统构建成功后系统持续稳定,水体清澈且具有良好的污染物去除效果,主要水质指标明显优于治理前。水体pH从9.09降至8.75,浊度从20.5 NTU下降到4.0 NTU,透明度最深处达到1.5 m以上或清澈见底,总磷浓度从0.19 mg/L降低至0.03 mg/L,COD_(Cr)浓度从109.5 mg/L降至17.0 mg/L,此外水生动物生物量及种类数显著增加,实现了水质改善目标。配合维护措施治理后的水生态系统具备一定抵抗外界干扰的能力,该工程的实施可为高原地区的盐碱化湖泊治理提供参考。The eutrophication control of a saline park water body in the Inner Mongolia Plateau is conducted by constructing a complete aquatic ecosystem.Acid-alkali adjustment of this water body is carried out to build aquatic plant and animal communities in the lake body,and functional bacterial agents are also supplemented to build and restore microbial communities.Moreover,the stable development of the ecosystem is guaranteed by on-site maintenance measures.The project effect shows that the aquatic ecosystem remains stable after its successful construction,with a clear water body that offers a favorable pollutant removal effect and main water quality indexes significantly better than those before treatment.Specifically,the pH of the water body decreases from 9.09 to 8.75,and the turbidity is lowered from 20.5 NTU to 4.0 NTU.Regarding transparency,it reaches more than 1.5 m at the deepest part of the water body,or even a clear bottom is achieved.The total phosphorus concentration decreases from 0.19 mg/L to 0.03 mg/L,and the COD_(Cr) concentration is reduced from 109.5 mg/L to 17.0 mg/L.In addition,aquatic animal biomass and the number of species of aquatic animals increase significantly.The above results indicate that the water quality improvement target is achieved.The aquatic ecosystem after treatment with maintenance measures can resist external disturbance to a certain extent,and the implementation of this project can provide a reference for the treatment of saline lakes in plateau areas.

关 键 词:盐碱化 公园水体 水生态修复 稳态转换 生物操纵 

分 类 号:X52[环境科学与工程—环境工程]

 

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