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Water Treatment Facilities
In a water treatment facility water goes through a 4 step process, these are called treatments. From pre-treatment to tertiary treatment these steps are necessary to filter humanity's trash and to protect the environment from harmful toxic substances.
Water treatment is also a way of controlling harmful pathogens from water such as infections, bacteria, parasites among others.
Pre-treatment is a on-site filtering that can be done at the source of wastewater, it is practised by hospitals, production plants and other industries that produce specific contaminants to water
Simple Grit chamber+ Sedimentation tank
Primary treatment is a basic screening of solid, dense and heavy contaminants off the water. This process produces primary sludge
To achieve these results we use machines such as sedimentation tanks and grit chambers that slow the flow of water.
Secondary Treatment is the removal of organic waste. In this process it is common the use bacteria these consume and release simpler components, this process, however, is done in an aeration tank, because bacteria need oxygen to do this process, here bacteria receive oxygen through gas tubes on the bottom of the tank (see image). The second tank takes a substantial amount of sludge and sends it back to the aeration tank to replace the bacteria population.
Areation tank and secondary sedimentation tank example
https://www.waterpathogens.org/
Global Water Pathogen Project
Tertiary Treatment has the goal of removing unwanted substances and chemicals from water the most common of these are pathogens and others living beings for safe disposal of water on natural bodies of water. The most common decontamination process is chlorination, this process removes a wide variaty of unwanted compounds such as iron, amonia and sulfur.
