The following solutions can be taken to address the increase in COD caused by sludge aging:
Firstly, it is necessary to increase the amount of sediment discharge. By timely discharging aged sludge and introducing new activated sludge, the processing capacity of the system can be improved. When discharging sludge, attention should be paid to controlling the sludge discharge speed and amount to avoid excessive sludge discharge that may cause system instability.
Secondly, adjust the proportion of nutrients. Detect the content of nutrients such as nitrogen and phosphorus in sewage to ensure that their proportions meet the needs of microbial growth. When necessary, supplement an appropriate amount of nutrients to promote the metabolism and growth of microorganisms.
Furthermore, optimize the operating conditions. For example, adjusting the aeration rate appropriately to ensure sufficient but not excessive oxygen supply; Control water temperature, pH value, etc. within an appropriate range to create a favorable living environment for microorganisms.
Additionally, the introduction of biological reinforcement technology can be considered. Add specific microbial agents to enhance the activity and diversity of microorganisms in the system, and improve the ability to degrade organic matter.
At the same time, strengthen monitoring and control of incoming water quality. Avoid excessive concentration of wastewater or wastewater containing toxic and harmful substances from entering the treatment system to reduce the system's processing pressure.
Finally, conduct comprehensive inspections and maintenance of the processing system on a regular basis to ensure the normal operation of the equipment and guarantee processing effectiveness.
