鸭绿江(丹东段)水污染控制系统规划研究

鸭绿江是中朝两国的界河,是沿江两国人民生活和生产的主要水源。下游河道长233km,可分为各具特点的三个江段:上段由浑江至水丰电站,为水库淹没区;中段由太平湾电站至马市为河流段;下段由马市至江海分界线为感潮河口段,该段长约55km,潮流界在东尖头处,距江口27km。下段中,由大沙河口开始承纳中朝两国沿岸工矿、城镇排放的大量污水,使宽阔(干流宽度为1～3km)江面的沿岸两侧形成了二条明显的岸边污染带,中方江桥处污染带宽达200m左右。从目前和未来都不能满足水产养殖和旅游的要求。本研究的目的是为经济有效地改善鸭

System Planning Research for Water Pollution Control in Yalu Estuary

This paper outlines the studies on methods and procedures of systematic planning for water pollution control at the region of Dandong City-Yalu Estuary. Five aspects of water quality managment: prediction of pollutants, control of pollutant sources, discharge system of sewage, sewage treatment, and influence on aquatic environment have been considered as a whole system, from which 22 alternatives of projects and the optimal one have been investigated. And then, a planning project which conforms itself to integrative benefits of environment, economy and society has been made. In this paper, a new method, "computerized scanning calculation: gradient searching" is applied to estimate optimal parameters for modelling of river water quality. A two-dimension steady model that includes a considerable parameters is developed to simulate tidal water quality of the estuary. An analysis of "effectiveness-policy-making" for water management of multi-levels and multi-goals is applied.