Question

Role of temperature in waste water treatment process

Answer 1

A model has been developed to simulate the effect of temperature control on the performance of a completely mixed activated sludge wastewater treatment system. From calculations based on the model it is demonstrated that effluent quality is significantly improved for any increase in temperature from 10° to 30°C, irrespective of solids retention time (SRT) and sludge settling characteristics. A trade-off exists concerning the effects of temperature on the sludge disposal and oxygen requirements of the system. Although any increase in temperature above 20°C will significantly reduce the sludge production rate, it will also contribute to increased air flow power requirements. The results suggest that a suitable compromise may be reached with a temperature between 23 and 27°C and an SRT between 8 and 14 days.




hope it helps u plz mark as brainlist if u satisfied with the answer