PRESENTING NEW LOW ENERGY EVAPORATION TECHNOLOGY ON LIQUID...
Transcript of PRESENTING NEW LOW ENERGY EVAPORATION TECHNOLOGY ON LIQUID...
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PRESENTING NEW LOW ENERGY
EVAPORATION TECHNOLOGY ON
LIQUID WASTE FOR
ZERO LIQUID DISCHARGE By
at
TWO DAY ‘NATIONAL WORKSHOP CUM
TECHNOLOGY EXHIBITION FOR PROMOTING
INDUSTRIAL ENERGY EFFICIENCY’
7th - 8th November, 2016
By
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3 = high separation 2 = moderate 1 = low separation
Note! pH may change rating considerably
Pollutant to remove
Dissolved substances
Cat
ion
s (e
.g.
heav
y m
etal
s)
M
onov
alen
t io
ns
M
ultiv
alen
t io
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C
ompl
exed
ions
An
ion
s
M
onov
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M
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.g.
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42- )
A
mm
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m
Org
an
ic c
om
po
un
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C
arbo
hydr
ates
P
rote
ins
A
lcoh
ols
S
olve
nts
(e.g
. hy
droc
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P
igm
ents
P
estic
ides
C
OD
in g
ener
al
Technology
Adsorption (e.g. activated carbon) 1 1 1 1 1 1 1 3 3 3 1
Ion exchange 3 3 3 3 2
Chemical precipitation 1 2 3 2 2 1
Membrane technologies
Ultrafiltration (UF) 2 1 1
Nanofiltration (NF) 2 3 2 2 3 2 3 2
Reverse osmosis (RO) 3 3 3 3 3 1 3 3 1 3 3 3
Electrodialysis 3 3 3 3 3 3
Evaporation 3 3 3 3 3 2 3 3 3 3 3
Distillation 3 3 3
Flotation 1 1 2 2 2 1 1
Air/steam stripping 3 2 3 2
Electrical methods
Electrolyse 3 3 3
Electro coagulation 1 3 3 2 2 2 2
Biological treatment 1 1 2 1 1 2 3 3 3 1 2 1 2
Methods have often to be combined for zero discharge operation or to meet discharge limits
APPLICABILITY OF DIFFRENT WATER TREATMENT TECHNOLOGIES
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EVAPORATION – NATURE’S PURIFICATION METHOD
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PROCESS
PRETREATMENT EVAPORATION RE –USE
OR DISPOSAL
CONCENTRATE
WASTE WATER CLEAN WATER
MAKE UP WATER
ZERO DISCHARGE SYSTEM BY EVAPORATION
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SINGLE EFFECT EVAPORATION
Specific Steam Consumption =
1.1
Vapour
Steam
Primary Condensate
Feed
Concentrate
Cooling Water
Condensate
1.1
1.0
CONDENSER
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4-EFFECT MULTI-EFFECT EVAPORATION
Concentrate
Condensate
Vapour Steam Vapour
Waste Heat
Feed
Cooling
Water CONDENSER
Vapour Vapour Vapour
Primary Condensate
Specific Steam Consumption = 0.28
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Vapor
Feed
Concentrate
Condensate
COMPRESSOR
Compressed Vapor
DT Steam consumption ~ 0
Cooling water cons. ~ 0
P = C x MF x DT P = Fan Power Use (kW) C = Constant (2,5…3) MF = Vapor mass flow (ton/h) DT = Temp. difference (°C)
MECHANICAL VAPOR RECOMPRESSION EVAPORATION
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ARVIND ENVISOL INTRODUCES
NEW EVAPORATION
TECHNOLOGY
USING LOW ENERGY POLYMERIC FILM AS HEAT TRANSFER MEDIA
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9
POLYMERIC FILM EVAPORATION TECHNOLOGY
Low cost Evaporative surface
o large heat transfer surface
o small temperature difference
o low energy use - typically 10 to 15
kWh per m3 of purified water
Efficient production of
polymeric heat exchanger
elements by new machine
(1,5 million m2/year)
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10
0
500
1000
1500
2000
2500
3000
00,20,40,60,811,2
Wall thickness, mm
Heat
tran
sfe
r co
eff
icie
nt,
U W
/m2oC
SS 316 PE
OVERALL HEAT TRANSFER COEFFICIENT AS FUNCTION OF WALL THICKNESS
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Uniform distribution of Liquid on the Surface of Polymeric Heat Exchanger
LIQUID DISTRIBUTION ON POLYMERIC HEAT EXCHANGER
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POLYMERIC EVAPORATIVE HEAT EXCHANGER CASSETTE
50 elements
Surface area 200 m2
Total weight 50 kg
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OPERATION PRINCIPLE
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TYPICAL EVAPORATOR LAY OUT (14 CASSETTES)
LARGE DIAMETER UNIT (3.8 mtr.)
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CONTAINER SIZE EVAPORATOR (10 CASSETTES)
SMALL DIAMETER UNIT (2.4 mtr.)
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INTERNAL ARRANGEMENT OF CASSETTES
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MVR-FAN (HEART OF SYSTEM)
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OPEX COMPARISON OF POLYMER MVR WITH CONVENTIONAL MEE & MVR
Energy consumption (Power = Rs6/kWh, steam Re1 /kg) Rs/m3 clean water New technology MVR (12 kWh/m3 + 10 kg/m3) 82
Conventional MVR (25 kWh/m3 + 20 kg/m3) 170 Conventional ME 1 stage (2 kWh/m3 +1100 kg/m3) 1112
Conventional ME 4 stage (3 kWh/m3 + 280 kg/m3) 298
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COST COMPARISION OF SOME HEAT EXCHANGE MATERIALS
Material Relative cost/m2
AISI 316 51 x 1,0 mm tube (50 EUR/m2) 1 254 SMO 51 x 1,25 mm tube 2,5 654 SMO 51 x 1,25 mm tube 4,9 Sanicro 28 51 x 1,8 mm tube 5,7 Hastelloy C276 51 x 1,0 mm tube 13 Titanium 50,8 x 0,9 mm tube 13 Polyolefin film 40 my (0,3 EUR/m2) 0,006 High tech plastic film 0,06
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TYPICAL APPLICATION AREAS
Textile industry Steel and metal industry Mining industry Pulp & Paper Food and feed industry Landfill leachate Groundwater remediation Seawater desalination Chemical industry Electronic industry Power plants Pharma industry
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MVRE PLANT (3 X 500 M3/D)
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COPPER CABLE MANUFACTURING FROM COPPER EFFLUENT 350 M3/D
Condensate
Concentrate
Copper
Electrolyse
Sulfuric acid H2SO4
Evaporator
Pickling basin
H 2 SO 4 Surface active agent
Copper cable
Passivation Rinsing counter current
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OUR VALUED CLIENTS
• Textile CETPs
• Tannery CETPs
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THANK YOU !
From:- Pradeep Samajdar
Head-Business Development
Email: [email protected]
Mob:+917621077729