Study On Wastewater Treatment Of Constructed Wetlands In Shijiazhuang Township

With the continuous development of our country's economy,the speed of industrialization also gradually accelerated,the sewage also in unceasing increase,this not only increased the pressure of the environment,also caused the waste of water resources.The center of gravity of sewage treatment is usually in the city,but the sewage treatment in the township is often neglected.According to statistics,90%of the villages and towns sewage is sewage discharge without any effective treatment directly,serious impact on the rural areas around the living environment and water body,in the influence of the local economy development,hinder the construction of ecological civilization at the same time,also seriously affected the people's health,sewage treatment is imminent.In the process of sewage treatment,affect the cost of treatment effect is the key problem,how can in under the premise of guarantee treatment effect,reduce the construction and operation cost is now the main task of the aim of the new technology and related fields.When choosing sewage treatment technology,we should be able to adapt to local conditions,use less investment,see more rapid benefits,and run management can be easily distributed processing technology.Artificial wetland sewage treatment technology has the characteristics of high efficiency and low energy consumption.In recent years,it has received more attention in the process of urban sewage treatment.At the same time,the application of wetland technology can better protect the environment,which is more in line with the concept of sustainable development,and can better solve the environmental problems caused by pollution caused by pollution.This study mainly analyzed the situation of town sewage and sewage treatment in Shijiazhuang,and put forward the corresponding countermeasures according to the actual situation,and analyzed the construction of the combined model of town sewage treatment constructed wetland.The main research results are as follows:the construction of the combined model of town sewage treatment constructed wetland,using the principle of combination efficiency and ecological balance,established the combined model of town sewage treatment constructed wetland.The sewage treatment combination model with catchment wells,hydraulic regulation channels,surface flow constructed wetlands and winter water accumulation pits as the basic units has refined the structure of surface flow constructed wetlands,and two plant communities have been selected by analogy to improve the efficiency of wetland treatment.This sewage treatment adopts the way of"storage in winter and treatment in summer".That is to say,the sewage is stored after winter comes and treated after spring temperature rises.The sewage stored in winter and new sewage discharged daily are mixed in a certain proportion to gradually purify the sewage stored in winter.The solid wastes and sludge in sewage can be treated by biogas treatment system,which can be mixed with crop straw and fermented.The wastes can be used as organic fertilizer for crops.In addition,the use of combined sewage treatment model can effectively improve cost-effectiveness,the system also has a relatively high efficiency,needs less wastage,but also can save land resources,can be widely used in township sewage treatment,can better protect the aquatic environment and aquatic ecosystem.