EVALED™ PCVacuum heat pump evaporators

EVALED™ RVForced circulation MVR evaporators

EVALED™ RV comprehendsTC and MVR series which

distinguish from each other bythe heat exchanger technique, one

by forced circulation and shell&tube heat exchanger, the other by falling

film and forced circulation with shell&tube heat exchanger.

EVALED™ RV Solution represents the range of mechanical vapour recompression and forced circulation evaporators for industrial wastewatert treatment, ideal when large quantity of waste which can cause fouling, precipitation and crystal formation has to be treated.

The low running costs enable installation of plants whose return oninvestment can often be measured in months.

EVALED™ RV Evaporators

VWS Italia has a firm commitment to reducethe CO2 emissions of its technological offer.Careful analysis has enabled us to calculatethe CO2 emissions of our solutions.

Contact us for a customized Carbon FootprintAssessment.www.veoliawaterst.it

Materials

VWS Italia, in co-operation with respected materials research centres, selects the most suitable materials for the safe management of aggressive liquids.The resistance to corrosion is the main feature of every EVALED™ evaporator, essential when dealing with extremely concentrated liquids.

Austenic stainless steel AISI 316L(Number: 1.4435 – X2 CrNiMo 18-14-3)

Austenic weakly bound structure, non-hardening, non-magnetic. The low percentage of carbon in this alloy reduces the risk of intergranular corrosion at high temperatures.Uses: alkaline liquids, acid liquids (pH>4) with a low percentage of chlorides, oil emulsions, liquids from flexographic printing.

Superduplex stainless steel (Number: 1.4410 - X2 CrNiMo 25-7-4)

Austenic-ferritic structure, magnetic. The high percentage of chromium gives excellent resistance to localised corrosion.Uses: acid liquids (pH>3) with high chlorides and metals content, galvanic wastewater, landfill leachate.

Nickel alloy (Number: 2.4819 – NiMo 16 Cr15 W)

High flexibility Cr-Ni.Mo steel. The low carbon content ensures resistance to the formation of carbides at zones exposed to thermal variation. It has excellent resistance to localised corrosion, both in oxidising and reducing environments, even at high temperatures.Uses: very acid liquids (pH>2) with high content of chlorides, fluorides and metals, anodising wastewater, special applications.

Technical Reports EVALED™ RV

VWS Italia ‐ Ver. GB 05 Rif. FM 1091 

                 

TC 120000  

Mechanical vapour recompression vacuum evaporator with  

forced circulation  

  

EVALED™ TC SeriesTC series is based on forced circulation technology through an external shell&tube heat exchanger. The evaporator allows high levels of waste concentration and dramatical reduction of the frequency of cleaning and maintenance operations. Furthermore the high liquid recirculation through the tube heat exchanger allows an high heat exchange efficiency and a reduction of deposits or scaling on the heating surface.

TC series is the best solution for:mechanical industrysurface treatmentspowerlandfills

TC 1000010.000 l - 2.650 gal of distillate / 24h

TC 1500015.000 l - 3.970 gal of distillate / 24h

TC 3000030.000 l - 7.930 gal of distillate / 24h

TC 6000060.000 l - 15.850 gal of distillate / 24h

TC 120000120.000 l - 31.700 gal of distillate / 24h

Low specific energy consumption:0.050 kWh/l distillate

A standard structure:2 modules on a stainless steel frame

Fully automated non-stop working:evaporation process controlled by a PLC

Features and benefits

Service - assistance| maintenance | spare and consumable parts | Hydrex™ chemical products | Aquamove™ temporary mobile units

Value - dramatic reduction of volumes and disposal costs | water reuse

Responsibility - low carbon and water footprint evaporators

Process diagram

Vapour

Boilingchamber

Demister

Blower

Circulationpump

Distillate tank

Concentrate

Distillate

Heat recovery

Distillate transfer pump

Feed

Heat exchanger

EVALED™ MVR SeriesMVR evaporator is based on the forced circulation technology through a falling film heat exchanger. It operates in two stages both having independent mechanical vapour recompression system: falling film followed by external heat exchanger. The falling film stage carries out the preconcentration of the solution, while the forced circulation with external shell&tube heat exchanger concentrates up to 30% of the total dissolved solids. The distillate is continuously produced and discharged by both stages.The main benefit of the falling film technique is the possibility of treating heat-sensitive products with very low temperature differences between the heat exchanger and the boiling liquid. Therefore the liquid is not effected by any heat shock.

MVR series main benefits:large heat transfer surfacevertical tubelow speedlow energy consumptionreduced difference of temperature on the surface

MVR series is the best solution for:mechanical industrychemical industrybiogas

MVR 100100.000 l - 31.700 gal of distillate / 24h

MVR 200200.000 l - 63.400 gal of distillate / 24h

Low specific energy consumption:from 0.025 to 0.030 kWh/l distillate

A standard structure:5 modules on a stainless steel frame

Fully automated non-stop working:evaporation process controlled by a PLC

Features and benefits

Service - assistance| maintenance | spare and consumable parts | Hydrex™ chemical products | Aquamove™ temporary mobile units

Value - dramatic reduction of volumes and disposal costs | water reuse

Responsibility - low carbon and water footprint evaporators

Process diagram

FallingFilmHeatExchanger

Feed

Blower

ConcentrateDischarge

DistillateDischarge

HeatRecovery

Circulation pump

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Veolia Water Solutions & Technologies Italia S.r.l. unipersonale

Via Pra’ di Risi 3, 33080 Zoppola (PN), ItalyTel. +39 0434 516311 • Fax +39 0434 516310info@veoliawaterst.it

www.veoliawaterst.it

Service - is what we provide our customers

Value - is what we create for our customers

Responsibility - is the keystone for all our business activities

EVALED™ ACVacuum evaporators powered by hot/cold water

EVALED™ AC Solution represents the range of hot/cold water evaporators for industrial wastewater treatment, utilizing low cost energy sources, such as the ones from cogeneration plants.

EVALED™ AC evaporators comprehends both EW and RW series.

The difference between the two series is the thermal exchange technique.EW works with external tube heat

exchanger and forced circulation, RW with scraped jacket.

EVALED™ AC evaporators

VWS Italia has a firm commitment to reducethe CO2 emissions of its technological offer.Careful analysis has enabled us to calculatethe CO2 emissions of our solutions.

Contact us for a customized Carbon FootprintAssessment.www.veoliawaterst.it

VWS Italia, in co-operation with respected materialsresearch centres, selects the most suitable materials forthe safe management of aggressive liquids.

Austenic stainless steel AISI 316L(Number: 1.4435 - X2 CrNiMo 18-14-3)

Austenic weakly bound structure, non-hardening, non-magnetic. The low percentage of carbon in this alloy reduces the risk of intergranular corrosion at high temperatures.Uses: alkaline liquids, acid liquids (pH>4) with a low percentage of chlorides, oil emulsions, liquids from flexographic printing.

Superduplex stainless steel (Number: 1.4410 - X2 CrNiMo 25-7-4)

Austenic-ferritic structure, magnetic. The highpercentage of chromium gives excellent resistance to localised corrosion.Uses: acid liquids (pH>3) with high chlorides andmetals content, galvanic wastewater, landfillleachate.

Nickel alloy (Number: 2.4819 - NiMo 16 Cr15 W)

High flexibility Cr-Ni.Mo steel. The low carboncontent ensures resistance to the formation ofcarbides at zones exposed to thermal variation. Ithas excellent resistance to localised corrosion, bothin oxidising and reducing environments, even athigh temperatures.Uses: very acid liquids (pH>2) with high content ofchlorides, fluorides and metals, anodising wastewater, special applications.

Materials

EVALED™ AC Technical Reports

EVALED™ EW SeriesEW is the hot/cold water evaporator with forced circulation and external shell&tube heat exchanger. The heat necessary to boil the wastewater is supplied by hot water running into the heat exchanger; the cooling necessary to condensate the steam is supplied by cold water running into the heat exchanger at the top of the boiling chamber.

EW is particularly suitable for:landfills and waste contractorsfood industrymechanical industrybiogas plants digestorsteel and aluminium industrychemical industrypower

Single effectEW 20000

20.000 l - 5.300 gal distillate / 24h17 m3/d heating water flow-rate (90 °C/194 °F)

73 m3/d cooling water flow-rate (25 °C/77 °F)

EW 4000040.000 l - 10.600 gal distillate / 24h34 m3/d heating water flow-rate (90 °C/194 °F)146 m3/d cooling water flow-rate (25 °C/77 °F)

Double effectEW 30000

30.000 l - 7.900 gal distillate / 24h14 m3/d heating water flow-rate (90 °C/194 °F)

60 m3/d cooling water flow-rate (25 °C/77 °F)

EW 6000060.000 l - 15.800 gal distillate / 24h

120 m3/d heating water flow-rate (90 °C/194 °F)27 m3/d cooling water flow-rate (25 °C/77 °F)

A standard structure:single or double module on a stainless steel frame

Fully automated non-stop working:evaporation process controlled by a PLC

Double effect:power consumption halving

Service - assistance | maintenance | spare and consumable parts | Hydrex™ chemical products | Aquamove™ temporary mobile units

Value - dramatic reduction of volumes and disposal costs | opportunity to utilize power from cogeneration plants

Responsibility - low carbon and water footprint evaporators

Features and benefits

Process diagram

Tank

Pump

Condensate

EjectorDistillateOutlet

ConcentrateOutlet

Circulation pump

Boilingchamber

Vapour

FeedInlet

Cold waterinlet

Cold wateroutlet

Demister

Hot wateroutlet

Hot waterinlet

2

1

Process diagram

EVALED™ RW SeriesRW is the hot/cold water evaporator/crystallizer with stirred and scraped heat exchanger surface that transfers heat by heating jacket containing circulating hot water.This series is designed to treat wastewater containing a high concentration of suspended and dissolved solids. That is the reason why within the boiling chamber wastewater is stirred continuouslyby an Archimedes screw type scraper, preventing any fouling of the heat exchange surface.The evaporator produces a distillate recyclable, since free of dissolved salts, and a solid or semi-solid concentrate with a water content lower than 15%. The RW evaporators are designed to work both continuously and by batch, by using a pump to discharge the concentrate or by stopping the evaporation process by opening the front door and leaving the screw working.With the addition of an optional intermediate heat exchanger RW evaporators can also utilize steam as a heat source.

RW 30003.000 l - 790 gal distillate / 24h

2.9 m3/d heating water flow-rate (90 °C/194 °F)8.6 m3/d cooling water flow-rate (25 °C/77 °F)

RW 60006.000 l - 1.600 gal distillate / 24h6 m3/d heating water flow-rate (90 °C/194 °F)18 m3/d cooling water flow-rate (25 °C/77 °F)

RW 1200012.000 l - 3.200 gal distillate / 24h

12 m3/d heating water flow-rate (90 °C/194 °F)36 m3/d cooling water flow-rate (25 °C/77 °F)

RW series is the best solution for:landfills and waste contractorsgalvanic industryfood industrymechanical industrychemical industryprintingpower

RW series is particularly suitable where:it is necessary to minimize the concentrate to dispose ofthe wastewater has a high content of dissolved or suspended solidsconcentrate with high solid content has to be achieved

A standard structure:module on a stainless steel frame

Fully automated non-stop working:evaporation process controlled by a PLC

Service - assistance | maintenance | spare and consumable parts | Hydrex™ chemical products | Aquamove™ temporary mobile units

Value - dramatic reduction of volumes and disposal costs | opportunity to utilize power from cogeneration plants | matter recovery

Responsibility - low carbon and water footprint evaporators

Features and benefits

Process diagram

Tank

Pump

Condensate

EjectorDistillateOutlet

Hot wateroutlet

Hot waterinlet

Vapour

FeedInlet

Discharge

Heating Jacket

Cold waterinlet

Cold wateroutlet

Process diagram

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Veolia Water Solutions & Technologies Italia S.r.l. unipersonale

Via Pra’ di Risi 3, 33080 Zoppola (PN), ItalyTel. +39 0434 516311 • Fax +39 0434 516310info@veoliawaterst.it

www.veoliawaterst.it

Service - what we provide our customers

Value - is what we create for our customers

Responsibility - is the keystone for all our business activities

Silicon Carbide (SiC)Chemically inert material resistant to almost all aggressive substances, usually matched with another chemically inert material, PTFE, a fluoride co-polymer used for coating the inner surfaces of the boiling chamber.Uses: pickling wastewater, galvanic wastewater, andaggressive liquids.

EVALED™ PC Technical Reports

MaterialsThe EVALED™ PC Solution is the range of evaporators which uses heat pump for the treatment of many kinds of wastewater. This technology has been refined over many years in terms of flexibility, low energy consumption and reliability.

EVALED™ PC evaporatorscomprehends E Series with

forced circulation and an external shell&tube heat exchanger and

R Series with jacket type heat exchanger and scraped heating

surface.

consistent distillate quality high yield and low quantity of concentrate to dispose of control of foaming excellent separation of surfactants total separation of metals fully automatic operation low maintenance

VWS Italia, in co-operation with respected materials research centres, selects the most suitable materials for the safe management of aggressive liquids.The resistance to corrosion is the main feature of every EVALED™ evaporator, essential when dealing with extremely concentrated liquids.

Austenic stainless steel AISI 316L (Number: 1.4435 – X2 CrNiMo 18-14-3)

Austenic weakly bound structure, non-hardening,non-magnetic. The low percentage of carbon in thisalloy reduces the risk of intergranular corrosion athigh temperatures.Uses: alkaline liquids, acid liquids (pH>4) with a lowpercentage of chlorides, oil emulsions, liquids fromflexographic printing.

Superduplex stainless steel (Number: 1.4410 - X2 CrNiMo 25-7-4)

Austenic-ferritic structure, magnetic. The highpercentage of chromium gives excellent resistance to localised corrosion.Uses: acid liquids (pH>3) with high chlorides andmetals content, galvanic wastewater, landfillleachate.

Nickel alloy(Number: 2.4819 – NiMo 16 Cr15 W)

High flexibility Cr-Ni.Mo steel. The low carboncontent ensures resistance to the formation ofcarbides at zones exposed to thermal variation. Ithas excellent resistance to localised corrosion, bothin oxidising and reducing environments, even athigh temperatures.Uses: very acid liquids (pH>2) with high content of chlorides, fluorides and metals, anodisingwastewater, special applications.

EVALED™ PC evaporators

Main benefits of heat pump:

VWS Italia has a firm commitment to reducethe CO2 emissions of its technological offer.Careful analysis has enabled us to calculatethe CO2 emissions of our solutions.

Contact us for a customized Carbon FootprintAssessment.www.veoliawaterst.it

EVALED™ E SeriesE series is designed to produce maximum distillate quality with minimum capital and operating costs. Each model is a compact skid-mounted unit, simple, safe and easy to move.Control is by a PLC, including the functions of feed and discharge, therefore allowing automatic operation and minimum supervision. All models are designed for continuous operation, 24h/day, and require just electrical supply and compressed air.E series evaporators operate in a high vacuum condition, with the boiling chamber pressure set at 5-6 kPa (absolute vacuum), in order to save the thermal energy produced by the heat pump. In this way the boiling temperature of the wastewater is approximately 40°C (104°F) and typical phenomena (scaling, precipitation, corrosion) which may reduce the performance are either eliminated or considerably reduced.

E evaporators are particularly suitable for:mechanical industryaluminium die-castinglandfills and waste contractorsgraphic artsgalvanic industry and surface treatmentschemical industry

Features and benefits

E 700 - 700 l - 185 gal distillate / 24h

E 1400 - 1.400 l - 370 gal distillate / 24h

E 2400 - 2.400 l - 635 gal distillate / 24h

E 4000 - 4.000 l - 1.057 gal distillate / 24h

E 6000 - 6.000 l - 1.586 gal distillate / 24h

E 8000 - 8.000 l - 2.114 gal distillate / 24h

E 12000 - 12.000 l - 3.170 gal distillate / 24h

E 24000 - 24.000 l - 6.340 gal distillate / 24h

E 48000 - 48.000 l - 12.682 gal distillate / 24h

Process diagram

Low specific energy consumption:from 0.13 to 0.17 kWh/l distillate

A standard structure:from 1 to 4 modules on a stainless steel frame

Fully automated non-stop working:evaporation process controlled by a PLC

Service - assistance| maintenance | spare and consumable parts | Hydrex™ chemical products | Aquamove™ temporary mobile units

Value - dramatic reduction of volumes and disposal costs | water reuse and matter recovery

Responsibility - low carbon and water footprint evaporators

Freo

n

Freon

ConcentrateOutletCirculation

pump

Compressor

ExpansionValve

Fan

Boilingchamber

Vapour

FeedInlet

Heat exchanger

Pump

Condensate

Tank

EjectorDistillateOutlet

Demister

EVALED™ R SeriesIn the R series the exchange of heat is via a conical jacket at the base of the boiling chamber, while the inner heating surface is continuously cleaned by scrapers, which also act to stir the concentrate. This configuration is designed to produce a concentrate with a high final concentration, also in the presence of precipitation conditions.

R Series is particularly suitable where:the wastewater has a high initial content of dissolved or suspended solidsthe wastewater is already pre-concentratedthe daily volumes are relatively smallthe distillate has to be of the highest qualitythe concentrate has to be recycled

R Series is the best solution for:landfills and waste contractorsgraphic artschemical industrygalvanic industry

Process diagram

R 150 - 150 l - 40 gal distillate / 24h

R 500 - 500 l -132 gal distillate / 24h

R 1000 - 1.000 l - 265 gal distillate / 24h

R 2000 - 2.000 l - 529 gal distillate / 24h

Low specific energy consumptionfrom 0.13 to 0.17 kWh/l distillate

A standard structure:single module on a stainless steel frame

Fully automated non-stop working:evaporation process controlled by a PLC

Service - assistance| maintenance | spare and consumable parts | Hydrex™ chemical products | Aquamove™ temporary mobile units

Value - dramatic reduction of volumes and disposal costs | matter recovery

Responsibility - low carbon and water footprint evaporators

Features and benefits

Freon

Freon

TankPump

Condensate

Ejector DistillateOutlet

Compressor

Fan

ExpansionValve

Vapour

FeedInlet

Heating Jacket

Discharge

Boilingchamber

Scraper

Heat exchanger

Service - is what we provide our customers

Value - is what we create for our customers

Responsibility - is the keystone for all our business activities

Veolia Water Solutions & Technologies Italia S.r.l. unipersonale

Via Pra’ di Risi 3, 33080 Zoppola (PN), ItalyTel. +39 0434 516311 • Fax +39 0434 516310info@veoliawaterst.it

www.veoliawaterst.it

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EVAL

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