The Research On Application Prospect Of Intelligent Control In Municipal Wastewater Treatment System

With the rapid development of modern industry, urban water environmental pollution in China is getting worse, tons of water consumption in municipal wastewater treatment plants are much higher than developed countries, operating managers are too more, and there is a big gap of operation management and automatic control from foreign countries, the most important is that this does not meet the requirements of the scientific development concept. Since wastewater treatment process has the characteristics of multivariable, nonlinear, time-varying stochastic, and its control is complex. It is difficult to achieve real-time control of wastewater treatment with the traditional methods. Intelligent control can be used to solve control problems in the complex system, which is difficult to resolve by traditional methods. However, intelligent control technology of municipal wastewater treatment as a high-tech, with the uncertain characteristics of technology development and commercialization prospects, it brings great difficulties for the investment decisions. Therefore, it is essential to study the prospects of technology.Based on this, this paper analyzes the research status on intelligent control technology of municipal wastewater treatment, make use of technology maturity to analyze the technology's prospects, as well as the research status and the lack of technology maturity, then proposes the research method of combination with objective and subjective.Then, this paper takes intelligent control technology of municipal wastewater treatment as an example, makes a concrete analysis of their maturity. There are two parts: (1) from an objective point, there are three methods based on bibliometric analysis, including document type transformation, key words transformation and Fisher-Pry model method; (2) from a subjective point, using structural equation model based on expert judgments to optimize the evaluation index system, to further improve the determination of technology maturity. Based on the above analysis, intelligent control technology of municipal wastewater treatment does not reach maturity, which is in the stage of technical maturity recovery.Finally, for intelligent control technology of municipal wastewater treatment being in the stage of technical maturity recovery, this paper makes the development countermeasures, further complete the research of technology prospect, which provide a reference for investment decisions, but also provides a new method for the determination of technology maturity and the research of high-tech prospects.