Study On The Design And Application Of Monitoring On-line For Wastewater Information System For Urban Drainage Network In Hangzhou

Water pollution is an outstanding problem in our country. In order to improve the environmental management, the department of environment management need adopt advanced technology nowadays and establish the automated water quality monitoring station to monitor the water pollution continuously in all dominating river. Because the intelligent online water quality monitor system, which will be reseached in this paper can monitor water quality continuously for all day and all night, the data that we get can reflect water quality and development trend of pollution, thus the system can provide reliable reference for management of environment.COD, NH3-N and pH are three important water pollution indexes. In conventional method, the water is time sampled and measured manually in the laboratory. The integrated instrument for measurement of COD, NH3-N and pH of water introduced in this thesis realizes the automation of the measurement of water quality. The instrument has the characteristics of nicety, online, multi-parameter measurement at same time.The objectives of this dissertation are system analysis and design of Monitoring On-line for Wastewater Information System for Urban Drainage Network. According to actual situation of management and characteristics of the system, the Information System for Urban Drainage Network should combine primary functions, such as producing professional schematics and tables, special spatial analysis, etc. to promote management on drainage network. This paper analyzes demands of the system and brings design objectives of its functions and capabilities, and the principles in the process of design, then puts forward to proper tools to develop the system and its frame. The next step, this paper brings forward objects of the management, and their method of sorting, organizing and managing, and then design functions and their scenarios of implementation. In which, elements of data management and their characteristics and relations are concluded by frame, operational traits and forceful factors of drainage network. With schemes of optimization and security mechanisms, database in relational model is used to keep data in this system, and data is organized by lays and codes. After discussed data management, this paper puts forward to design and implementation method of functions of the system.By introducing the Information System for Urban Drainage Network in Hangzhou city, the paper expounds the process of design and implementation of Monitoring On-line for Wastewater Information System for Urban Drainage Network. Thissystem has met economical and technical demands in the process of management.