Wastewater aeration plays an important role in the treatment of wastewater in New Zealand. Industrial treatment of wastewater is the process of treating wastewater that is produced as commercial and industrial activities byproduct. After treating the industrial wastewater, it may be released into the surface water or be reused.
Aeration of wastewater
Aeration of wastewater is the process of adding air into the wastewater being treated to allow pollutant components to be aerobically biodegraded. It is an important part of most biological treatment systemsin New Zealand. On the other hand, chemical treatments use chemicals to react with contaminants and stabilize them in the wastewater.
When to use aeration
The most common option under secondary wastewater treatment is the activated sludge process. aeration of wastewater is part of the secondary wastewater treatment process. Wastewater aeration equipment in New Zealand is used to pump air into a tank. The air promotes the growth of microbial in the wastewater being treated. These microbes eat organic material to form flocs that settle out and easily removed.
How aeration works
Aeration provides the necessary oxygen to bacteria in the wastewater to treat and stabilize the wastewater. Once the bacteria have enough oxygen to thrive, they break down the organic matter that contains carbon to form water and carbon dioxide utilizing the oxygen supplied through aeration. Without enough oxygen, bacteria aren’t able to biodegrade organic matter within a reasonable time. Without dissolved oxygen, degradation has to occur under septic conditions that are odorous, slow and yield incomplete pollutants conversions.
Under septic conditions, some of the processes convert Sulphur and hydrogen to form organic acids and make water more difficult to treat. It also promotes the formation of odour. Without oxygen, organic matter biodegradation is very slow. For this reason, wastewater aeration is necessary to make the process faster, odourless and yield complete pollutants conversions.
