In this article, the author describes the main problems in old townsewage system, finds the potential reasons and provides solutions.
本文介绍了旧城区排水设施中存在的主要问题，找出潜在的原因，并针对这些问题提出了解决的对策。
2
In view of characteristic and control requirement of the townsewage treatment, this paper makes use of fuzzy control method to control the deal of drug.
针对城镇污水处理的特点和控制要求，采用模糊控制方法对加药量进行控制。
3
As a new technology for wastewater treatment, vertical subsurface flow constructed wetland has good practical value and application prospect in townsewage resourcing.