The Research On Sewage Treatment Project And The Drainage System Optimization Of Medium And Small Towns In Southern Shanxi

The economic constructiont of medium and small towns in southern Shanxi isdeveloping rapidly in recent years, but the construction of drainage system and sewagetreatment system is relatively backword,the main problem is:many towns have nodrainage network,the rainwater and sewage water run along with the terrain into nearbyrivers,it pollutes the rivers, and then threatens the health of the public;The area ofsouthern Shanxi is mountainous with terrain elevation and topography complex.Thesewage system,industrial wastewater system and storm-water system are lack of unifiedplanning and overall layout concept,this can’t make full use of the advantage of terrainand form an organic whole,so they can’t produce the best engineering benefit and can’tmeet the requirements of industrial development of town;In addition,the managementsystem is not perfect,with the lack of scientific management facilities.According to the specific problems,this text analyzede the related documents andraised a optimization plan of the drainage system and took the design of Lvhe town asan example,to research the applications of this optimization scheme in practice.Throughthe research,we offer references which are practical significance when we design thedrainage system and sewage treatment system,especially when we choose drainagetreatment.The main contents of this text:1.By investigating and literature reviewing on medium and small towns in southernShanxi,know the general situation of nature and the present situation of water quality inthese areas, analyze the present situation of drainage system and sewage system of theseareas,raise this side issue existing in these areas; 2.The drainage system includes sewage system and storm-water system.Thinkingabout the choice of drainage system,layout of the net work and the choice of designparameter to optimize these two systems, by comparating and analyzing,put forwardoptimization technology of drainage system.In addition,aimed at the optimization ofstorm-water system, put fprward rain utilization as resource and managerial actions.3.Though literature review,put forward process schemes which are fit for sewagetreatment of medium and small towns.Combining with the specific conditions ofmedium and small towns in southern Shanxi, establish the sewage treatment plan of thisarea.4.Using the proposing theory and methods about the drainage system and sewagetreatment to one representative town of southern Shanxi---Lvhe town, combining withspecialized planning on drainage of Lvhe and research data,design the drainage systemand sewage system of Lvhe.