What is the difference between biological treatment of wastewater?

To date, according to experts, there is a great variety of various, and most importantly, effective methods of water treatment, including biological, chemical, and mechanical.

In this article, we will consider in more detail such a question as biological treatment of wastewater. Nowadays it is the most popular and at the same time effective.

Biological wastewater treatment is practiced exclusively in one type of sewage treatment plant - the so-called autonomous sewage systems. Of course, this method is innovative, it is based on the use of special bacteria, which, in turn, decompose organic compounds into carbon and water.

It is important to note that microorganisms, which are used in this method, are divided conditionally into two small groups: aerobic and anaerobic. Their main difference is that for the first species, water rich in oxygen is required. In the second case, the presence of O ₂ is not necessary.

How is biological wastewater treated?

Firstly, after getting the waste in a special station, they stand for some time, resulting in a process of fermentation and clarification.

At the next stage, already clarified waters enter another chamber, where the process of active small-bubbly aeration takes place.

At the last stage, the final cleaning takes place due to the presence of silt, which is already saturated in the oxygen medium.

It is important to recall that biological treatment of wastewater mainly implies a virtually complete absence of extraneous unpleasant odors. According to experts, this method has a lot of positive moments, among which it is necessary to note the possibility of re-use of liquid. But in this case already pre-treated water can be used exclusively for economic purposes, for example, for watering plants.

On the other hand, chemical wastewater treatment is equally popular. This method is usually carried out by using three methods: neutralization, oxidation and reduction. Undoubtedly, this solution is very effective, however, due to the high cost of electrochemical oxidation, it is used quite rarely.

In conclusion, it should be noted that to date, such a question as wastewater treatment and wastewater treatment is considered very relevant. Otherwise, if everyone will pollute nature, in the near future mankind faces a terrible ecological catastrophe. Moreover, when using, for example, the biological method, everyone has the opportunity, as already noted above, to reuse the obtained liquid for economic purposes, which indicates the saving of natural resources. Already today, experts are sounding the alarm and are urging to use the biological method, which is the most reasonable and at the same time effective solution.