Application Research Of Water Quality Automatic Monitoring Technologies About Sewage Plants In Erdos City

Erdos City has experienced a period of rapid economic development. With the development of the economy, the limitation to Erdos City caused by water shortage is becoming more and more prominent. Sewage treatment and water reuse is an important measure to solve problems of water resources shortage, while the water quality monitoring is a significant way to evaluate wastewater treatment efficiency. Erdos has established and put into operation many sewage treatment plants during the Eleven Five-Year-Plan, and the main wastewater treatment technologies are activated sludge and oxidation ditch process. Since the Twelve Five-Year-Plan, the country has provided in the automatic monitoring that on the basis of original sulfur dioxide and COD to conduct automatic monitoring, the country has increased the online monitoring of nitrogen oxide and ammonia nitrogen. This paper is based on the online monitoring data of sewage treatment plant in Erdos City to make a comparison of wastewater pollutants removal rate by sewage treatment technologies.The paper involves the composition of automatic monitoring system of waterpollution resource, analyzer equipment and basic principles. Based on the automatic monitoring data of sewage treatment plants in Erdos City, it has been concluded that:1. Adopt contrast experiment (laboratory manual monitoring and automatic online monitoring), take the method of mathematical statistics to make a correlation analysis to experimental results. Through the calculation of correlation coefficient, it can be drawn a conclusion:concluded data by the monitoring of water pollution sources automatic monitoring equipment are reliable, which can be used for the study of pollutants removal rate.2. By taking daily data curve and annual statement of online monitoring system, analyze and conclude that the wastewater collected by Erdos City sewage treatment plant is mainly town domestic sewage, of which the water inflow is lesser, the water quality is volatile and changes of water pollutants are not regular.3. By online monitoring data calculation to conclude pollutants removal rate, solely accords with pollutants removal to consider the choice of sewage techniques, which can be concluded that the best way is an oxidation ditch method, and then activated sludge method. However, A/O process of phosphorus and nitrogen removal is worse compared with the two above.