摘要
根据2006~2016年黄壁庄水库水质监测数据,选取溶解氧、总氮、总磷等8项指标为评价因子,基于模糊数学综合评价法对水库水质进行评价,确定水库主要污染因子,并对主要污染因子成因进行分析。结果表明,黄壁庄水库水质综合评价为地表水Ⅴ类水质,主要受总氮指标影响,其他评价指标基本符合地表水Ⅱ类水质。过高的总氮浓度主要源于较高的硝酸盐氮,来水硝酸盐氮含量高,且库内反硝化作用受抑制,是导致水库硝酸盐氮含量高的主要原因,同时季节变化对库区硝酸盐氮含量也有一定影响。该研究对保护水源地水质,保障黄壁庄水库安全供水具有重要意义。
According to the water quality monitoring data of Huangbizhuang Reservoir in the period of 2006-2016,the eight indicators were selected as evaluation factors,which included dissolved oxygen,total nitrogen,total phosphorus and so on.The paper evaluated the water quality and determined the main pollution factors of the reservoir by using the fuzzy mathematics comprehensive evaluation method,and analyzed the pollution causes of major pollution factors.The results show that the comprehensive evaluation of reservoir water quality is Class V water,which is mainly affected by the total nitrogen.But the other evaluation indicators basically meet ClassⅡ water.The high total nitrogen concentration is mainly derived from the high nitrate nitrogen.The nitrate nitrogen content in the incoming water is high,and the denitrification is inhibited,which are the main reasons of high nitrate nitrogen content in the reservoir.Meanwhile the seasonal changes have a certain impact on the reservoir nitrate nitrogen content.This study is of great significance to protect the source water quality and ensure the safe water supply of Huangbizhuang Reservoir.
作者
王瑶
王慧勇
安丽娟
王树谦
WANG Yao;WANG Hui-yong;AN Li-juan;WANG Shu-qian(School of Water Conservancy and Hydroelectric Power,Hebei University of Engineering,Handan 056038,China)
出处
《水电能源科学》
北大核心
2020年第4期60-63,共4页
Water Resources and Power
基金
国家水体污染控制与治理科技重大专项(2014ZX07203-008)
河北省水资源高效利用工程技术研究中心项目(18965307H)。
关键词
黄壁庄水库
模糊数学
水质评价
污染成因
Huangbizhuang Reservoir
fuzzy mathematics
water quality evaluation
pollution causes
