4 uv sterilization layout 1 - atlas filtri
TRANSCRIPT
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UV STERILIZATION
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treatment chamber
connection cover cap
UV lamp
AC plug with transformer
covering holderquartz covering
UV sterilizers
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BACTERIAEscherichia coli Bacterium coli Salmonella sp Legionella pneumophilaMycobacterium tubercolosis
Vibrio cholerae Streptococcus faecalis Pseudomonas sp Leptosphaera spStreptococci Staphylococci
VIRUSESPolivirus poliomyelitis Various bacteriophages Hepatitis Various flu viruses
YEASTSCommon cake yeast Bread yeast Saccharomycetes
Some of the microorganisms removable up to 99.99% with radiation energy at 30,000 mWsec/cm2
removable microorganisms
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❯ multi-lamp unit
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REVERSEOSMOSIS
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❯ direct - reverse osmosis
Concentrated Solution
Membrane Dilute Solution
FlowFlow
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❯ membrane diagram
water passage
product
concentrate
ions
feed
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❯ spiral wound element
concentrate spacer
permeate product
concentrate
concentratepermeate
water passage
membrane
sealing O-rings
feed
permeate spacer
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❯ types of membrane
TW - TABLE (FRESH) WATER from 2-3 bar to 18-20 bar
BW - BRACKISH WATERfrom 7-8 bar to 35-40 bar
SW - SEA WATER from 50-55 bar to 70-84 bar
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Recovery (%) =Flow of permeate x 100Feed flow
Salt rejection (%)
INCREASING WATER FLOW WATERPRODUCED QUALITY
feed pressure increases improves
temperature increases gets worse
feed salinity decreases gets worse
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❯ two-stage system
feed
concentrate
permeate
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❯ reverse osmosis pre-treatments
filtration
dechlorination
pH correction
sodium metabisulphite
antiscalant
reduction in turbidity
protection of the membraneprotection of the membraneprotection of the membrane
anti-incrustation
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❯ maintenace
maintenanceof reverse
osmosis plants{flushingpreservation
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❯ filtration spectrum
Angstroms
sugars
ionic species colloidsfiltration
microfiltration
ultrafiltration
nanofiltration
reverse osmosis
ion exchange
virusesbacteria
sandmacromolecule
1 10 100 1000 104 105 106 107
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❯ ultrafiltration