Evaluation of process parameters of the biological stage of wastewater treatment plant

摘要

With the accumulation of sufficient knowledge of technological processes in a waste water treatment plant, and the need arose to check them. By using simulations, can be studied the effects of various environmental conditions, can be testing the sensitivity of the system to the different parameters, different configurations can be applied to the control. Performance analysis of a WWTP waste water using simulation JASS program has allowed us to make the following remark: 1) in the input parameters for the reporting station, it does not require additional capacities for carrying out a process of water purification; 2) Modernization of aeration basins, by converting to the bioreactors of these anoxic will lead to better-informed optimal nitrogen removal; 3) Monitoring of aeration capacity of bioreactors compartments, these can be adjusted as, depending on the flow rate, to be in an optimum ratio of volumes for nitrification and denitrification, with the goal of eliminating the greatest quantity of nitrogen in the effluent. 4) The JASS simulation can be used as a prior calibration of the model for the assessment of the ability of biological treatment plant, under various conditions of quality of influent WWTP configuration. In this paper we analyze the operational stage of biological treatment plants by simulating aerobic processes, the station is configured to work without nitrogen removal processes in water. We used a simulation JASS program, establishing the characteristics of the aeration chamber and of secondary settling vessel, using geometric data input. The model parameters used in the simulation are the principals in the simulation program.