Please help me with the sewage problem! ! !
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The water in the accident tank was black and smelly due to insufficient aeration (TSS inside was about 1,000). Will such water entering the aeration tank affect the microorganisms inside and the quality of the effluent? Water has been bad recently.
Yes, if the sewage turns black and smells bad, it means it contains too much organic matter and sulfide. The index must have exceeded the processing capacity of the aeration tank.
It can be treated in a small amount as an accident pool. When there is sewage, it must be treated in time and the liquid level of the accident pool should be kept low to cope with the occurrence of unexpected accidents. Other water treatments can be mixed in small amounts.
What did you use for preprocessing? If you do a good job of materialization preprocessing, this situation will not occur.
Can be mixed with normal sewage in small amounts
Definitely, because the aeration of the accident tank is insufficient, anaerobic phenomena will occur, which will worsen the water quality and increase the content of organic matter. Microorganisms will have enough food, their growth and metabolism will be accelerated, and the cohesion and adsorption capacity of each other will be reduced, resulting in loose sludge and poor sedimentation. The fine sludge particles will increase. In addition, the organic matter remaining in the discharge water that has no time to be adsorbed and degraded by the bacterial jelly group will increase, affecting the quality of the effluent water.
The accident pool should be used to store wastewater discharged from unconventional production due to accidents, so its concentration is higher. Although the COD of the water in the accident pool is high, it is black and smelly at the same time, indicating that the accident pool is anaerobic. Of course, the oxygen supply is insufficient. It is better to stop the oxygen supply and allow the accident pool to be directly anaerobic before entering the aerobic pool for treatment. In fact, the water in the accident pool must be treated sooner or later, and this was also taken into consideration during the design. Therefore, the water in the accident pool is mixed with regular production wastewater in certain quantities and then enters the aerobic pool for treatment. Generally, it will not have a major impact on the system. Of course, since the aerobic system itself has problems, it is recommended to adjust the aerobic system first, and then proceed to sewage treatment in the accident pool.