Water Treatment

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by Ashleigh007195
Last updated 5 years ago

Cycles & Processes

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Water Treatment




Once sitting in the sedimentation tanks for a few hours, the impurities of the water begin to settle to the bottom, forming sludge. The sludge is then emptied out and the water stays behind. This is using a method which is decanting. The sludge is then recycled and takes the Coagulation and Flocculation steps again.The non-sludge water passes on to the next level, filtration.

The first step is 'Coagulation & Flocculation'. This involves the addition of a chemical. This chemical, coagulant, reacts with the 'impurities' of raw water. The impurities then stick with the coagulant particles, forming small pin-head particles, termed 'flocs'.


Water Treatment'Water treatment is the act or process of making water more potable or useful, as by purifying, clarifying, softening, or deodorizing it.'- Dictionary.com

What is Water Treatment

Coagulation and Flocculation

What are the steps?

Water Treatment!

Around 30 minutes-1 hour later...

The water passes back through a series of filters, which contain sand and anthracite (coal). The mixture of sand and coal can trap the particles of the water which is impure. The impure particles then stay trapped against the filter pieces. The filter has to be cleaned regularly to ensure that it traps all the impure particles found in water.

Chlorine is added to the water which removes any micro-organisms which could manage to escape the filters. The micro-organisms would then disappear. If water is travelling a long distance, a diifferent chemical is used. This chemical is Chloramine. Chloramaine is stronger and more effective than Chlorine in long distance tracks.


Once the water has gone through all the steps, the pure and clean water is now storaged and distributed.

Storage and Distribution


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