Today, according to experts, there are a great many diverse, and most importantly, effective methods of water treatment, including biological, chemical, as well as mechanical.
In this article, we will consider in more detail such a question as biological wastewater treatment. Today it is the most popular and at the same time effective.
Biological wastewater treatment is practiced exclusively in one type of existing treatment facilities - the so-called autonomous sewers. Of course, this method is innovative, based on the use of special bacteria, which, in turn, decompose organic compounds into carbon and water.
It is important to note that the microorganisms that are used with this method are conditionally divided into two small groups: aerobic and anaerobic. Their main difference is that the first species requires oxygen-rich water. In the second case, the presence of O 2 is not necessary at all.
How is biological wastewater treated?
Firstly, after the waste enters a special station, it settles for some time, resulting in a process of fermentation and clarification.
At the next stage, already clarified waters fall into another chamber, where the process of active fine-bubble aeration takes place.
At the last stage, final purification takes place due to the presence of sludge, which is already saturated in the oxygen medium.
It is important to recall that biological wastewater treatment mainly implies an almost complete absence of extraneous odors. According to experts, this method has a large number of positive points, among which it is necessary to note the possibility of reuse of the liquid. But in this case, already pre-treated water can be used exclusively for household purposes, for example, for watering plants.
On the other hand, chemical wastewater treatment is no less popular. This method, as a rule, is carried out using three methods: neutralization, oxidation and reduction. Of course, this solution is very effective, however, due to the high cost of electrochemical oxidation, it is rarely used.
In conclusion, it should be noted that today such a question as wastewater disposal and wastewater treatment is considered very relevant. Otherwise, if everyone will pollute nature, in the near future humanity will face a terrible ecological catastrophe. Moreover, when using, for example, the biological method, each person has the opportunity, as already noted above, to reuse the liquid obtained for economic purposes, which indicates the saving of natural resources. Already today, experts are sounding the alarm and calling for the use of the biological method, which is the most reasonable and at the same time effective solution.