摘要
以吉安市城区3个集中供水水源地为研究对象,选取溶解氧(DO)、高锰酸盐指数(CODMn)、五日生化需氧量(BOD5)、氨氮(NH3-N)、总磷(TP)、铁(Fe)6个参数,采用线性回归分析法和季节性Kendall检验法分析其2013~2018年水质变化趋势.结果表明:两种方法得到的断面各分析因子水质趋势一致,但相对而言季节性Kendall检验法的结果更精确.运用两种分析方法进行综合判定,3个供水水源地NH3-N和BOD5均呈上升趋势,虽然目前水质良好,但是后期还要加强管理,以确保饮水水质安全.
Taking three centralized water supply sources in ji'an city as the research object,dissolved oxygen(DO),permanganate index(CODMn),five-day biochemical oxygen demand(BOD5),ammonia nitrogen(NH3-N),total phosphorus(TP)and iron(Fe)were as the selected parameter.Using linear regression analysis method and the analysis of seasonal Kendall test the water quality change trend in 2013-2018.The analysis results show that the water quality trend of each analysis factor obtained by the two methods is consistent.But the results of seasonal Kendall test are more accurate.By using two analysis methods,it was found that NH3-N and BOD5 in the three water supply sources were on the rise.Although the water quality was good at present,management should be strengthened in the later period to ensure the safety of drinking water quality.
作者
肖莹洁
候林丽
郎锋祥
吴蓉
邹武
徐鹏
XIAO Yingjie;HOU Linli;LANG Fengxiang;WU Rong;ZOU Wu;XU Peng(Ji'an Hydrology Bureau of Jiangxi Province,Ji'an 343000,China)
出处
《江西水利科技》
2019年第6期428-434,共7页
Jiangxi Hydraulic Science & Technology
基金
江西省水文局2018年度青年科技创新基金资助项目(SWJJ-KT201805)
