摘要
基于阳江市那龙河2018~2020年的水环境常规监测数据,对河流的溶解氧、COD、氨氮、总磷含量等相关水质参数,运用单因子分析法及综合污染指数法进行了分析。结果表明:大部分断面的水质从Ⅲ类下降为Ⅳ类,氨氮、总磷同比分别上升了0.36、0.56和0.29倍,溶解氧下降了0.61 mg/L,污染状况加重。从超标频率来看,主要超标因子为氨氮和总磷,且不同位置的支流的水质检测指标沿那龙河上游到下游方向呈上升趋势,同时根据研究结果提出了“加快范围内城镇污水和农村污水处理设施建设”的治理建议。
Based on the routine monitoring data of water environment of Nalong River in Yangjiang City from 2018 to 2020,this study used single factor analysis method and comprehensive pollution index method to analyze the water quality parameters such as dissolved oxygen,COD,ammonia nitrogen and total phosphorus content of the river.The results showed that the water quality of most sections decreased from classⅢto Class IV;ammonia nitrogen and total phosphorus increased by 0.36,0.56 and 0.29 times,respectively,and dissolved oxygen decreased by 0.61mg/L,which aggravated the pollution.From the exceedance frequency,the main exceedance factors were ammonia nitrogen and total phosphorus,and the water quality detection indexes of tributaries in different locations showed an upward trend along the upstream to downstream direction of the Narong River.Meanwhile,according to the results of the study,the treatment suggestions of"speeding up the construction of urban sewage and rural sewage treatment facilities within the scope"were put forward.
作者
秦建桥
蒋东航
冯志权
揭盈丽
郑泽敏
徐浩佳
廖小小
刘燕芳
Qin Jianqiao;Jiang Donghang;Feng Zhiquan;Jie Yingli;Zheng Zemin;Xu Haojia;Liao Xiaoxiao;Liu Yanfang(School of Environmental and Chemical Engineering,Zhaoqing University,Zhaoqing,Guangdong 526061,China;Key Laboratory of Environmental Health and Resource Utilization of Guangdong Province,Zhaoqing,Guangdong 526061,China)
出处
《绿色科技》
2023年第6期122-126,共5页
Journal of Green Science and Technology
基金
广东省普通高校重点领域专项(科技服务乡村振兴)(编号:2021ZDZX4023)
肇庆学院质量工程及教改项目(编号:zlgc 201931)
2021年广东省本科高校教学质量与教学改革工程建设项目(编号:粤教高函[2021]29号)
肇庆学院2022年大学生创新创业训练计划项目(编号:X 202210580130)。
关键词
那龙河
水质检测
阳江市
Nalong River
water quality testing
Yangjiang City
