What is the main purpose of aeration?
曝氣的主要目的是什麼？
Aeration provides oxygen to the bacteria that naturally occur in wastewater. This allows them to multiply and efficiently digest dissolved contaminants. Wastewater is otherwise an anaerobic environment, so when all the oxygen has been used up, the bacteria would stop working. By reintroducing air using a blower or compressor, the bacteria can continue not just at their previous rate, but become increasingly more abundant and more efficient.
曝氣為廢水中天然存在的細菌提供氧氣。這使其能夠繁殖並有效分解溶解的污染物。而廢水作為厭氧環境，當所有氧氣耗盡時，細菌便會停止運作。透過鼓風機或壓縮機重新引入空氣，細菌不僅恢復先前的速率，還能大量繁殖並提高效率。