摘要
广西天等县属于典型的大石山地区,区内以喀斯特岩溶地貌为主,透水性大。为了有效保护、管理该县的水资源,文中采用单因子评价法、综合污染指数法和内梅罗水污染指数法对天等县的太平河(灵山屯上游)、丽川河(流经县城)和伏曼水库(饮用水水源)进行水质分析与评价。结果表明:太平河、丽川河和伏曼水库的高锰酸盐指数(COD_(Mn))、五日生化需氧量(BOD_(5))、氨氮和总磷(TP)指标未超过《地表水环境质量标准》Ⅲ类水限值。太平河、丽川河的总氮(TN)年平均质量浓度分别为1.405、1.546 mg/L(2019年),超过Ⅲ类水限值,超标倍数为2.40、2.20。太平河、丽川河已进入轻污染状态。伏曼水库水质总体上较好,但呈恶化趋势。TN是天等县典型地表水源的主要污染物,建议以控制TN为关键点,按照水污染物排放管理标准进行提标改造、管理,以持续改善水质。
Tiandeng County is a Dashishan area in Guangxi,which is mainly karst landform with high permeability.In order to effectively protect and manage the water resources in this county,the single factor evaluation method,comprehensive pollution index method and Nemerow water pollution index method were used to analyze and evaluate the water quality of Taiping River(upper reaches of Lingshantun),Lichuan River(flowing through the county)and Fuman reservoir(drinking water source)in Tiandeng county.The results showed that permanganate index(COD_(Mn)),five-day biochemical oxygen demand(BOD_(5)),ammonia nitrogen and total phosphorus(TP)in Taiping River,Lichuan River and Fuman reservoir did not exceed the classⅢcriteria of Environmental Quality Standards for Surface Water.The average annual mass concentrations of total nitrogen(TN)in Taiping River and Lichuan River were 1.405 mg/L and 1.546 mg/L(2019)respectively,which had exceeded classⅢcriteria.And there exceed multiple were 2.40 and 2.20.Taiping River and Lichuan River had been lightly polluted.The water quality of Fuman reservoir was generally good,but it trended to be deteriorated.TN was the main pollutant of typical drinking water sources in Tiandeng.It is suggested that taking TN as the key point to carry out upgrading and management to improve water quality continuously,according to water pollutant discharge management standards.
作者
陆宝
朱伟伟
施钦
彭进国
刘绍刚
谭学才
LU Bao;ZHU Weiwei;SHI Qin;PENG Jinguo;LIU Shaogang;TAN Xuecai(School of Materials and Environment,Guangxi Unwersity for Nationalities,Norming 530006,China;Key Laboratory of Chemistry and Engineering of Forest Products,State Ethnic Affairs Commission,Guangxi Key Laboratory of Chemistry and Engineering of Forest Products,Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products,School of Chemistry and Chemical Engineering,Guangxi Unwersity far Nationalities,Nanning 530006,China;Guangxi Huaiou Testing Technology Co.,Ltd.,Nanning 530006,China)
出处
《净水技术》
CAS
2022年第S01期78-83,96,共7页
Water Purification Technology
基金
国家自然科学基金(21976040,22166008,22166007,21667005)
广西自然科学基金(2018GXNSFBA050002)
广西高等学校高水平创新团队及卓越学者资助计划(桂教人[2020]6号)
广西科技重大专项(桂科AA18118013)
广西高校中青年教师科研基础能力提升项目(2019KY0187)
广西民族大学校级引进人才科研启动项目(2018KJQD07)
广西民族大学高等教育教学改革工程项目(2018XJGY48)
广西区级大学生创新创业训练计划项目(20180608003,201810608004,201810608065,201810608039)。
关键词
天等县
单因子
内梅罗水污染指数
综合污染指数
水质分析
Tiandeng County
single factor
Nemerow water pollution index
comprehensive pollution index
water quality analysis
