The seven steps to purify water at a treatment plant are: 1) intake and thinning, 2) elevation, 3) addition of reagents, 4) sand elimination and degreasing, 5) primary movement, 6) biological reactors, and 7) clarifiers. The water first arrives and is collected, then pumped to a height of over 8 meters before reagents are added to remove sand and grease. It then moves through primary separators, biological reactors where microorganisms break down particles, and finally clarifiers where solids settle before clean water is released.

1. The water treatment If we want the water to be clean there are different steps to take !

3. Water entrance and thinning First the water arrives at the sewer then it gets collected at the water treatment to be purified before being rejected into the rivers

8. BIOLOGICAL REACTORS Four reactors of 5.200 m3 unitary volume that have four units type turbine of 189 C.V., two of them of double speed. When water is here, the micro-organisms, which are grown up in this phase, fed on all the biodegradable particles that there are in the water.