Vacuum evaporators powered by hot/cold water Solutions & Technologies

EVALED™ AC Solution represents the range of hot/cold water evaporators utilizing low cost energy sources, such as the ones from cogeneration plants. The battle against the climate change is a priority VWS Italia has a real commitment to reduce C02 emissions: we are working to make sure that our technological offering is ever more environmentally 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 i with scraped jacket. ,

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 features of every EVALED™ evaporators, essential when dealing with extremely concentrated liquids. Austenic stainless steel AISI 316L 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...

EVALED™ EW Series EW is the hot/cold water evaporator with forced circulation and external shell&tube heat exchanger. The heat necessary to boil the waste water is supplied by hot water running into 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: landlls and waste disposal food industry mechanical industry biogas plants digestor steel and aluminium industry chemical industry power SPECIFICATIONS The capacity of EW evaporators varies from 20.000 l (5.300 gal)...

Process diagram Cold water inlet Vapour 2 Demister Boiling chamber Cold water outlet Condensate Ejector Distillate Outlet Feed Inlet Tank Pump 1 Hot water outlet Hot water inlet Circulation pump Concentrate Outlet

RW is the hot/cold water evaporator with stirred and scraped heat exchanger surface that transfers heat by heating jacket containing circulating hot water. This series is designed to treat waste water containing a high concentration of suspended and dissolved solids. That is the reason why within the boiling chamber waste water is stirred continuously by an Archimedes screwtype 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 less than 15%. The...

Process diagram Cold water inlet Vapour Cold water outlet Condensate Ejector Distillate Outlet Tank Pump Hot water outlet Feed Inlet Hot water inlet Heating Jacket Discharge

Solutions Division and Service Division Via Pra’ di Risi 3, 33080 Zoppola (PN), Italy Tel. +39 0434 516311 • Fax +39 0434 516310 [email protected] [email protected] Industrial Design & Build Division Largo A. Cacciari, 1/B • 1/D, 43100 Parma (PR), Italy Tel. +39 0521 247672 • Fax +39 0521 463992 [email protected] www.veoliawaterst.it Photo: © VWS Italia The data in this document are indicative. Veolia Water Solutions & Technologies Italia S.r.l. reserves the right to change any data without prior notice. Images are neither representative of all versions nor models....