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In which action of filtration, colloidal particles are removed?

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in Environmental Engineering by (81.4k points)
In which action of filtration, colloidal particles are removed?

(a) Mechanical Straining

(b) Sedimentation

(c) Biological mechanism

(d) Electrolytic action

The question was asked in an interview for job.

My doubt is from Theory and classification of Filtration topic in chapter Filtration of Environmental Engineering

1 Answer

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Best answer
Right answer is (b) Sedimentation

Easiest explanation: In the sedimentation action of filtration, colloidal particles arrested in the voids attract other finer particle, settle down in the voids and get removed.

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