The Research On The Comparison Of Technology And Economy About The New Type Water & Wastewater Municipal Engineering Piping

Along with the demand of city development and industrialization, city will build and ameliorate a great deal of water factory and the dirty water processing factory annually,and build a great deal of piping at the same time. Analyze from the actual water & waste water engineering,the city need increase the water supply ability of the 10000m3/d in the water supply and set up the water supply piping 13-15 km; At the dirty aspect of water,because of increasing the processing ability of the 10000 m3/d each time,the city need to construct the 9-11 km pipe of waste water, therefore in the water & waste water engineering,the piping investment occupy the whole engineering about 60%,the application and developments of the piping and piping technique should be doubly paid attention. The application and development of new-style drain piping have changed enormously Water & waste water industry. Conventional piping material,e.g. cast iron pipe,steel pipe,concrete pipe etc. have been used for one hundred years that will be replaced by new-style piping material. Manufacturer of conventional piping material and stylist and constructor and supervisor and manager of Water & waste water industry who all will face the problem of renewing professional knowledge. The research of new-style drain piping is no time to delay but the technical economic trade-off studies of new-style drain piping is more important. After summarize the home and abroad development and present conditions of the piping of water & waste water,this paper analyzes and compares the new developed municipal engineering pipes for water supply and water drainage on technique function,application,construction,economic and other aspects systematically after summarizing the past and recent situation of the pipes for water supply and water drainage. Based on investigating the corresponding information,piece price formulas about some different pipes are estimated in least square method. Then the paper sums up some opinions for recommendation about choosing the material of pipes under the different condition. Analyzing and predicting the development situation about piping market. Using exponential curve to forecast the output of plastics pipes in 2005. Predicting the mainly developed kinds of pipe and the development policy about municipal engineering pipes in our country. The conclusions and suggestions drawn from careful analysis provide references for water pollution treatment administrator to make decisions,it also provide aegis for the construction of urban water supply works & wastewater treatment works. The municipal engineering design unit can get auspice from it too.