FILTRATION I FILTRATION Settled water has a turbidity
FILTRATION I
FILTRATION Settled water has a turbidity in the range from 1 to 10 NTU (typically 2 NTU) • Level of turbidity interferes with the disinfection process • Turbidity must be reduced further after the sedimentation process. • It is important that the treated water turbidity level to be below 0. 3 NTU (1 NTU is regulatory) • Filtration is used to remove turbidity to required levels Dr Mustafa @2012 2
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GRANULAR BED FILTRATION Dr Mustafa @2012 8
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FILTRATION Dr Mustafa @2012 11
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FILTRATION MEDIA Dr Mustafa @2012 21
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FILTRATION Dr Mustafa @2012 24
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Surface removal versus depth removal Dr Mustafa @2012 46
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END Dr Mustafa @2012 50
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