Load profile recognition of the biological cleaning stages to operate wastewater purification plant, where the profile recognition is derived from nitrogen load, biological oxygen demand-5-load, and nitrification-denitrification activity

摘要

The load profile recognition of the biological cleaning stages for load- and nutrient-optimized operation of a wastewater purification plant, in which the load profile recognition is derived from nitrogen load, BOD5-load (biological oxygen demand-5) on the basis of the specific performance of the blower (biological energy consumption), and the nitrification-denitrification activity. This recognition procedure actively intervenes in the processes of the purification plant and represents itself as a superordinate measuring-, control- and regulation concept. The load profile recognition of the biological cleaning stages for load- and nutrient-optimized operation of a wastewater purification plant, in which the load profile recognition is derived from nitrogen load, BOD5-load (biological oxygen demand-5) on the basis of the specific performance of the blower (biological energy consumption), and the nitrification-denitrification activity. This recognition procedure actively intervenes in the processes of the purification plant and represents itself as a superordinate measuring-, control-, and regulation concept. This procedure allows to protect the plant-spanning strategy of this load profile, to interactively intervene in the processes of the plant, in order to co-ordinate the processes ideal for one another. Actual blower speed regulation by a fine adjustment system, takes place on the basis of the oxygen need in an aeration basin of the plant, in dependence of a sophisticated specific load classification, which protects an overloading of the purification plant. Integrated loss strategy and plausibility checks increase the working reliability of the plant through measured values (ammonium values from the energy consumption of the biological purification stages are monitored by a plausibility inquiry) secured among one another.