摘要
《地表水环境质量标准》(GB 3838-2002)是当前南水北调中线水质监测评价的主要依据,但是该标准中部分指标与《生活饮用水卫生标准》(GB 5749-2006)和《城市供水水质标准》(CJ/T 206-2005)不衔接,导致供水和用水双方的水质信息无法充分共享。通过对比3部标准中水质指标和浓度限值的异同,结合南水北调中线水质特征,从水质标准衔接和水质从严管控的角度,初步拟定了南水北调中线输水水质标准,即以《地表水环境质量标准》(GB 3838-2002)为基础,提出将氨氮和粪大肠菌群等21项指标浓度限值调低,继续保留pH等87项指标的浓度限值,明确基本项目中总氮指标的浓度限值为2mg/L,增加浑浊度、叶绿素a和藻密度3项指标。
": Environmental quality standards for surface water"(GB 3838-2002)is the main basis for the monitoring and evaluation of current water quality for Middle Route of South-to-North Water Transfer Project,but some of the indicators in this standard are not connected with "Standards for drinking water quality"(GB 5749-2006)and " Water Quality Standard for Urban Water Supply"(GB 5749-2006).The water quality information of the water supplier and the water user cannot be fully shared.By comparing the similarities and differences of the water quality indicators and the concentration limits among the three standards,and combined with the water quality characteristics of the Middle Route of South-to-North Water Transfer Project,the water quality standard of the project was formulated from the perspective of water quality standard connection and strict control of water quality.Based on the "Environmental quality standards for surface water"(GB 3838-2002),the concentration limits of 21 indicators such as ammonia nitrogen and fecal coliforms were reduced,the concentration limits of 8 indicators such as pH are retained,the concentration limits of total nitrogen index was confirmed as 2 mg/L,and turbidity,chlorophyll-a,algae density three indicators were supplemented.
作者
李建
辛小康
王超
白凤朋
LI Jian;XIN Xiaokang;WANG Chao;BAI Fengpeng(Changjiang Water Resources Protection Institute,Wuhan 430051,China)
出处
《南水北调与水利科技（中英文）》
CAS
北大核心
2020年第2期114-125,共12页
South-to-North Water Transfers and Water Science & Technology
基金
水体污染控制与治理科技重大专项(2017ZX07108-001)。
关键词
水质标准
标准衔接
南水北调中线
water quality standard
standard connection
the Middle Route of the South-to-North Water Transfer Project
