In response to the needs of sewage treatment, the renovation, upgrading and expansion of sewage treatment plants are in full swing. In order to ensure the quality of effluent, sewage treatment plants usually install water quality monitors. In fact, it is also very important to install online monitoring instruments in the water quality monitor. This article demonstrates the need for such an installation in detail using an example.
In order to ensure the stable discharge of effluent water quality, various on-line monitoring instruments are usually installed in each sewage treatment plant to monitor the sewage treatment results and processes in the sewage treatment stage, such as: pH, COD, NH3-N, TP, TN, flow and other parts Online monitoring of outcome items. For example, some process items such as DO, MLSS, and air volume of the biological reaction tank are monitored. Due to the improvement of effluent quality, the quantity and quality of online monitoring instruments installed in sewage treatment plants are no longer the same. However, due to the uncontrollable source of sewage and the lack of monitoring of water quality, although water quality testing instruments are installed in the plant, once the excess sewage enters the plant, it is basically too late to activate the emergency response plan. Therefore, it is necessary to install online monitoring instruments in the sewage pumping station to monitor the quality of sewage. This paper takes an enterprise in Shanghai as an example to analyze the necessity of installing an online water quality monitor in a sewage pumping station.