Partial list of pollutants that may be contained in wastewater

Waste water also known as liquid effluent may contain various pollutants or hazardous substances which are capable of causing various diseases for living beings and deteriorating the environment. These can be processed and then reused. In any case, before being discharged into the wild, they should be treated in order not to become toxic or harmful.

Pollutants that can be found in wastewater

Depending on their nature and provenance, wastewater may have several harmful constituents such as heavy metals and metalloids. Large amounts of phosphates and nitrates can also be found in these wastewater. But this is not all, they also contain organic pollutants such as polychloro-biphenyl, veterinary and human drugs, hydrocarbon residues, and so on. Some wastewater even contains pesticides, viruses, parasites, bacteria, prions and many others. These pollutants come from products used in industries and various human activities such as agriculture, animal husbandry, cleaning, and many others. These are also visible results of urbanization. For all these reasons, it is not advisable to dump wastewater into the environment or to reuse it without first processing it. This is even prohibited and can lead to severe penalties.

How to treat wastewater?

Wastewater treatment refers to all processes used to decontaminate wastewater or wastewater before returning to the environment or re-using them. It is a kind of measure to protect the receiving environments whether directly nature or other. The aim is therefore to reduce the impact of this wastewater on the environment or on the recycling site. The treatment itself involves several stages, including pretreatment, primary treatment, secondary treatment, tertiary treatment and quartenary treatment. These stages are divided in turn by several small sub-stages depending on the expected results, the level of water pollution etc. They all require the use of specific products or solutions such as chlorine, ozone, filter sand and many others.

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The way water treatmeant impacts your body

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How to treat sludge to become potable water

How to treat sludge to become potable water
Knowing that the sludge contains more than 95% of water, they can therefore be treated to extract them and make them again drinkable solutions. The main goal of the treatment of sludge in a treatment plant is to make the drinkable aspect and the potability of the water that they contain. This is achieved by reducing the volume of sludge to limit the quantities to be stored or spread, and stabilizing them to optimize their physical characteristics while eliminating all unnecessary and harmful (drinking water) [...]