The need to dispose the waste of water is one of the oldest needs of humanity, in fact many human activities lead to the production of contaminated waste water, which must be restored in some way, for this reason it is necessary to consider the water treatment systems.
Rivers, seas, lakes therefore need a purification treatment in order to don’t compromise the ecosystem, it is true that they are able to absorb a certain concentration and purify themselves, but the density of inhabited centers has made this necessity increasingly primary.
What is wastewater treatment and purification?
Purification has spread in Italy only since the last century with the enrollment of the Merli’s law, which established the limit concentrations of wasted water.
The wastewater purification process is a complex process which involved various mechanical, chemical and biological actions, that has the objective of removing pollutants from the water.
In general, wastewater can include various contaminants with a high environmental impact, such as:
- Suspended solids, which can sink to the bottom and create a slime film.
- Organic substances, which steal oxygen from the waters on which they have been discharged.
- Ammonium and hydrogen sulphate, which are toxic substances for aquatic organisms.
- Phosphorus and nitrogen compounds, which promote the growth of algae.
- Pathogenic bacteria, which are responsible and spreaders of diseases.
How do aerators can contribute to a safe water basin?
Aeration is an important element for the health of the aquatic ecosystem, correct aeration allows you to maintain a high concentration of dissolved oxygen throughout the water column, thus allowing the biological activities of the aquatic ecosystem or the biological process of depuration, the true protagonist of the process of purification of water from its organic and chemical loadout.
It is also very important to make a distinction between surface and submersible aeration, the first one is made up of water jets which oxygenate the water because of the direct contact between water and air, while the second one is achieved through systems which inject air in depth and dissolve the oxygen through the injection of bubbles of different sizes and consequent transfer efficiency. The smaller the diameter of the injected bubble, the greater the transfer efficiency is due to the greater relative contact surface between bubbles and water.
Another factor is the residence time of the bubbles in the water, this is why a circulation effect associated with the injection of bubbles is a key factor in obtaining high hydraulic residence times of the bubbles and consequently maximum transfer efficiency.
Water treatment systems: Get in touch with Acqua&Co!
We are constantly engaged in the creation of purification systems, focusing on maximum purification performance and minimizing energy consumption, thanks to the use of patented mechanisms and taking particular attention to the environmental sustainability. Contact us now to find out more and request a consultation immediately!