Study On Optimization System Of Rural Domestic Wastewater Treatment Technology In Hebei

In recent years,the treatment of rural domestic sewage has been more and more valued by the state,in Water pollution prevention action plan and The national economic and social development of the People's Republic of China thirteenth five-year plan outline are clearly defined.However,the rural domestic sewage treatment by rural economy,technology and local comprehensive index and other factors of influence is determined not to copy the urban sewage treatment mode,should be required to confirm that the sewage treatment technology is based on the actual situation of the local rural.Therefore,the choice of suitable rural domestic sewage treatment model will become the focus of rural domestic sewage treatment research.Based on the present situation of rural domestic sewage treatment,by using the analytic hierarchy process and fuzzy comprehensive evaluation method and TOPSIS method combination of the three methods,from rural local conditions,establish a rural domestic wastewater treatment optimization system.Relative to a single evaluation method,this method ensures objectivity and rationality of the evaluation results.The interval-valued ambiguity theory in this method can reduce the deviation from the expert's personal experience and the subjective attention to the attributes when using the expert scoring in the analytic hierarchy process.In combination with the distance scale of each scheme and ideal solution in TOPSIS method,the evaluation target is evaluated with advantages and disadvantages,which makes the evaluation result more objective,scientific and accurate.Based on the established evaluation system of rural domestic sewage treatment,the selected typical examples are applied.Finally,the constructed rapid infiltration technology is the best domestic sewage treatment technology in a village of Zhengding County.The small-sized constructed wetland is the best domestic sewage treatment technology in a village of Zhengding County.Combining local research and related data collection in the field,determine the feasibility and practicability of establishing evaluation system of optimum,for rural domestic sewage treatment technology in different areas to provide a reference and guide.