The Sewage Treatment Plant Energy Consumption Analysis And Energy Conservation Technology Research In The City Of Kunming

Sewage treatment is an integrated energy-intensive technology, there is electricity and thermal energy comsuming in plant. With China's rapid economic development, here it comes by the energy crisis and environmental crisis, so that people concerned about the problem of energy consumption. To build a resource-conserving and environment-friendly society, the needs for high-energy resources use efficiency of sewage treatment of advanced and applicable technologies. According to the information said that the municipal sewage treatment plant the total consumption of electric power consumption 60～90%, mainly used in waste water, sewage sludge elevation, enhance biological oxygen system, as well as sludge treatment process these.This paper studies 6 sewage treatment plants power consumption issues in the main city of Kunming. Based on one year of operations information, it analysis the treatment process and the equipment power consumption. The sewage treatment plant s in the main city of Kunming it investigate the processes of the main system level energy consumption, the energy use characteristics and installed capacity of commonly used equipment and the actual use of the capacity situation, the direct energy consumption (mainly water and electricity are tons consumption) for qualitative assessment of the costs. Combined with the micro-organisms and the processing unit energy consumption we get the energy transfer model. This papper has a specific analysis of the energy consuming aeration equipment in urban secondary sewage treatment processes. Means of aeration, aeration tank dissolved oxygen in the transfer disciplinarian of the factors that affect the oxygen transfer to commence the study, set up models to describe and understand the transmission process of dissolved oxygen on the process design to provide technical guidance in theory, but also by simulating the wastewater treatment plant The dynamic changes of aeration system and its impact on the water quality objectives, and optimize the operation of sewage treatment plants and provide a theoretical basis for energy-saving design.The aeration tank is a complex microbial ecology response system, in the sewage treatment plant process. Dissolved oxygen demand is changing regularly. It is important indicative parameter, not only the impact of pollution treatment effects, also related to the running costs. Through the fuzzy PID control of time-varying oxygen can make sewage treatment plants play a more obvious energy saving effect. It can radically improve the aeration machines the problem of excessively high energy consumption. Sewage treatment plants can protect normal, continuous operation.This papper discusses the various sewage treatment plants pump electricity consumption and the impact of the sewage pump efficiency reasons, proposed VVVF as a energy-saving measures.By Combining the characteristics of the region, it get the sludge farm using and composting techniques near Kunming. Sludge recycle can be utilized in some of the energy, to energy saving, emission reduction, efficiency purposes.