All the sewage water have become a matter of concern in recent decades since the same they cannot be absorbed and neutralized by the environment itself. There is also the fact that many plants of sewage treatment (especially those located in a part of Asia and Africa) operate poorly. This represents a significant risk not only for public health, but also for the environment itself.
Many of the deficiencies that we find in treatment plants are mainly due to use of outdated technologies, a low budget for its maintenance and bureaucratic obstacles. However, thanks to the growing concern that the issue of wastewater has had, new technologies have emerged to treat them efficiently and at low cost. Let's get to know some of them.
Advanced oxidation
Water treatment by optimized ozone injection It turns out to be an excellent solution as well as not being that expensive. This technology offers many advantages such as:
Has a wide range of action
Ozone injected into water is capable of eliminate not only harmful microorganisms but also complex organic compounds and non-degradable chemicals such as mercury or lead.
It has very good performance
Simply add a small amount of ozone to the water to be treated to achieve massive disinfection and elimination of harmful elements. With this, it is also possible to comply with the current discharge regulations. It should not be forgotten that by injecting O3 the production of sludge and sediment is also mitigated.
Costs are optimized
Ozone is a very rich oxygen gas which can be reused in biological tanks. This fact makes this solution have a wide offer in the market and therefore, a magnificent profitability. Its use is recommended above all in those environments where there is a strong resistance from contamination towards biological treatments.
Solution by CO₂ injection
If what is sought is to neutralize the alkalinity in the effluents and at the same time, minimize the environmental impact due to possible secondary effects, then the use of CO₂ injection will prove to be the most suitable solution. Let's look at some of its benefits below.
It is very customizable
CO₂ injection water treatment turns out to be a highly customizable option so it can be adapted to many devices. This makes CO₂ injection wastewater treatment one of the most widely used and reliable solutions on the market.
It is a very economical solution
Unlike the use of other mineral gases and acids, CO₂ injection is a very economical solution, since by not attacking the structures where it is used, it reduces maintenance costs.
The impact on the environment is minimal
Contrary to solutions based on neutralizing CO₂, the solution by injection of this gas has a minimal impact on the atmosphere. This is because this solution acts by permanently trapping CO₂ and keeps it in the form of hydrogen carbonate, a neutral element for the environment.
In addition to the two previous methods, other innovative technologies such as pure oxygen treatment (Nexelia), membrane filtration, microbial fuel cells, etc. should also be highlighted.