Research On The Treatment Technology Of Artificial Wetland In Water Purification

In recent years, as the development of industry, population growth, escalatingpollution in urban and rural is seriously affecting people's production and life, atpresent, the city's rural water environment quality is generally poor, which hasseriously affected the living environment of rural residents, social and economicsustainable development, and became a serious threat to the health of the masses. Wehave to research and develop new technologies to solve this problem. Constructedwetland treatment technology is the technology, artificial wetlands as a naturalbiological treatment methods can improve the ecological structure and promotematerial energy cycle.Artificial ecological wetland treatment technology research, consists of three keycomponents: plants, microbes and matrix. Aquatic plants rooted in the stromal bed,bed is soaked with body of water, the matrix supports these plants, microorganismsand plant roots to provide a variety of survival compared to home, give full play thecoordinating role between systems, processing capability greatly improved, with highload factor, small footprint, reliable results, resistance to shock loading, and otheradvantages. Wetland surface plant cultivation can be combined with the actual needsof farmers, planting plants or economic landscape plants, sewage treatment, whileachieve rural landscape improvement, sewage treatment process a certain degree ofeconomic efficiency, increases income. This essay is about constructed wetlandtreatment technologies and the application of towns and villages in the city, the maincontents are as follows:(1)Wetland filling screening. Select shale, coarse gravel, stone and iron ore as thetest material, the adsorption assay removal of phosphorus by comparing differentfiller filler isothermal phosphorus. Different from the effects of the same kind of fillerparticle size on phosphorus adsorption performance point of view, the smaller theparticle size of the filler, the greater the maximum adsorption of phosphorus. Throughindoor and outdoor small scale and pilot test analysis compared the shale, coarsegravel, iron ore, stone, and their combination in the absence of plant cultivationconditions on COD, TN and TP removal.(2)Screening of dominant plants. Compare the growth of some common nativeaquatic plants in Tianjin with the actual polluted water purification through outdoorsmall test analysis.(3)Wetland structure optimization. Wetland pond-shaped structure is designed toTN and TP removal of the important factors affecting the wetland system.