What should be considered in wastewater treatment during winter?
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I would like to ask the experts: what aspects should be taken into consideration when treating wastewater in winter?
The most important thing is temperature control; it’s best to make full use of the waste heat from various factories. Raise the temperature of the wastewater; otherwise it will be troublesome. A series of problems will arise.
The main factor affecting wastewater treatment in winter is temperature. First, it affects the microorganisms’ own metabolism; as a result, their activity decreases and the removal rate drops. The second is the issue of freezing protection, including equipment, etc. Third is oxygenation: at low temperatures, the oxygenation efficiency is high, but excessive oxygenation can easily lead to sludge decomposition.
A sudden rise in water temperature can kill bacteria; the temperature should be adjusted gradually, without sharp increases.