The diagram shows the process of water treatment

The diagram illustrates how the

water

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is treated.

Overall

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, there are four main stages: screening, flocculation, sedimentation, and purification

Firstly

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, the

water

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intake goes through a screen to filter big particles, namely solid wastes and rocks, which later be pumped to mix with polyaluminium chloride and oxidants in a flash mix.

The next step is

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flocculation where the remaining particles will create a floc that will settle in the sedimentation basin. After the floc is settled, chlorine will be added to the clear

water

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so it removes bacteria. To make sure that the

water

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is thoroughly clean, additional steps are needed, which are filtering and disinfection. Membranes are planted in the filter to absorb smaller particles,

while

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in disinfection it uses chemical materials,

such

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as chlorine, lime, and fluoride, to purify

water

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from pathogens.

Finally

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, the

water

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is pumped to the faucet so that it can be used by humans.