南通市水污染控制与规划研究

南通市域内水环境形势恶化，未来有加剧趋势，其根本原因在于十分有限的水环境容量与逐年加重的水污染负荷之间的矛盾。针这一根本原因，提出南通市水污染控制规划的两点基本思路；一是消减污染负荷，是二是调整负荷的空间分布，确定了控制规划的基本思想；污水控制导流清污分开原则，采用生态工程与二级污水处理厂相结合而以生态为主导的污水多元集中处理原则，环境容量跨水域平衡原则。基于这一，构建了南通市水污染控制方案；南通

ON CONTROL PLANNING OF WATER POLLUTION IN NANTONG CITY

In Nantong city,the water environmental quality is tending to deteriorate.The essential cause of this situation is the contrariety between the limited water environmental capacity and the aggravating pollution burden.By analyzing the reason,this paper advances the basic train of thoughts in control planning of water pollution in Nantong,which includes reducing pollution burden and adjusting the distribution of burden among waters.The paper projects three basic principles,which include controlling sources of pollution and diverting course of polluted water from clean waters,centralized treatment of polluted water which is characteristic of the combination of sewage treatment plants and dominant ecological engineering,and balancing environmental capacity among waters.Based on these three principles,the control plan of water pollution in Nantong is devised.Polluted water in Nantong City is to be secondarily treated and discharged to Yangtze River.After being ecologically processed by the beach,wastewater from Haimen and Qidong is also to be discharged to Yangtze River.After being ecologically processed by the seashore and shoal,polluted water in Rudong,Rugao and Haian will be discharged to Yellow Sea.In the near future,after being secondarily treated,polluted water in Tongzhou will be discharged to Tonglu River,and in long range perspective,after being ecologically processed by seashore,it is to be discharged to the sea.