Water treatmentplant

The eight steps to treat waterwaste

Nowadays our consumer habits are deeply changing: indeed since a few years we can notice that people are becoming aware of the importance of the resources of the earth. We are starting to realize that they are not inexhaustible and that we have to preserve them. Bit by bit we are adopting a way of consumption which is more responsible and sustainable. The respect of the environment is becoming one of the priorities of private individuals and the government as well, who have their heart set on recycling their rubbish. It is especially true for wastewater.

Why it is important to recycle wastewater

You have to know that only the 2% of the wastewater in the world are currently reused. However several regions on earth are in an advanced state of drought: although it is not the case for every country, there are still many populations who have not access to water, drinkable or not. But yet there are many advantages by recycling wastewaters: indeed they can be used in the industry for example, for cooling system in some factories. They also can be used in the cities to spray the green spaces or fight against the fire. The farmers can use them to irrigate their cultivation.

How to purify wastewater?

Eight steps are necessary to purify used water: we start with screening to remove the biggest impurities, and then we put the water in a first sedimentation tank to remove grit and grease. Then the water is decanted one more time to remove the sediments which could contain polluting products. The water is also aerated to bring it oxygen, and it is sent in a bigger sedimentation tank to leave it to decant. Then we provide a tertiary and quaternary treatments, which are intended for remove suspended solids and noxious chemical compounds like pesticides and heavy metals. Then we end with sludge treatment. Click to learn more about wastewater.

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