falling film evaporator with mechanical vapor recompression, part of a Zero Discharge System (ZLD). The Evaporator includes the following major components: the evaporator, a circulation pump, a compressor, the deaereator, a distillate system, the feed heaters, and associated pumps. Each evaporator shares a common feed tank and seeding system. This evaporation system was previously used in a Zero Discharge System by a major Utility company. It was designed and engineered by Bechtel, and utilizes a seed-slurry process to maintain heat transfer tubes in a scale controlled manner. The process has been maintained in excellent shape.

• The main evaporator (Plant # BC-1/2) is a Model 130T designed by RCC and manufactured by Plant Maintenance Services, and has 13,000 square foot of surface area in the tube section. The construction Alloys are Titanium, AL6XN, and 316 SS. The design conditions for the condenser shell are 8 psig internal and 2 psig external at 250 degrees F. The condenser tubes are rated for full flooding and 8 psig external at 250 degrees F. The floor and sump are rated for full flooding and 2 psig at 250 degrees F. The evaporators dimensions are 88" OD at the condenser, 106" OD in the mid section and 134"OD at the sump/skirt. Overall height is 54' 11". The unit is skirt mounted. The tubes are 2" OD x 0.028" wall thickness x 24' long with a titanium top tube sheet and a AL6XN bottom tube sheet. The vessel includes two 30" manway for top and side access, and structural steel with stairs and platforms. *The recirculation pump(Plant # P-034-A/B) is an AC/ITT single stage, open impeller, horizontal centrifugal pump. It is a model # 150, size 14 x 12 x 21 PWO, with packing on the main shaft. It is rated for 5000 GPM at 40' TDH. The material of construction is Austenitic SS (CD4MCU). It is a base mounted direct coupled pump, driven by a 75 HP AC motor. The motor is rated for 60 Hz, 3 ph, TEFC with a 497 T frame. Mechanical Vapor recompression is provided by a Roots centrifugal blower( Plant # C-002-A/B), in a skid mounted package with an electrical driver. The blower is a Type 360IB, serial # HA3352. It is rated for 1233 lbs./minute, with an inlet volume of 30,003 ACFM, at 14.82 psi, with a specific gravity of 0.622. The inlet temperature is rated for 217 degrees F and the discharge pressure is 20.2 psi. It operates at 7309 RPM. It has a Lufkin gear increaser, and is driven by a Siemens 1000 HP ac motor. The motor is rated for 3/60 1460 volts. The skid mounted unit includes controls, oil system, and oil cooler.

double effect evaporation system. See video of system operating at http://www.youtube.com/watch?v=Y6J52r-maPE. Capacity based on a brine stream at 24% to 50% strength. Feedstock of 32,000 lbs/hr(normal operating) or up to 50,000 lbs./hr. brine at ~ 20-25% NaBr is sent to the first effect, where it is strengthened to ~ 35% NaBr. The steam generated from this effect is used for heating on the second effect. Final target for brine leaving the second effect is 45-50% NaBr. The first effect (IPP Stock # 216077) (drum type)t is 2,000 gallon, and is manufactured by Paget. With a 400 sq.ft. "U" tube heater, this unit is operaing at 310 degrees F using 150# steam. The second effect is a modular, forced circulation system, designed by Swenson and manufactured by Four Corp. This effect is operating at atmospheric pressure and using the steam generated from the first effect to heat the second effect 838 sq. ft shell and tube heater(reboiler, IPP Stock # 216082). Overheads are condensed (IPP Stock # 216085). Product at ~ 50% NaBr is sent to storage. Circulation is acheived by a Goulds 6,000 gpm centrifugal pump. The first effect is a stand alone unit, the second effect is a modular system with all equipment mounted with in it's own framework. Instrumentation by Rosemount.

• Internal plated for crystallizing the product, with wipers driven by the rotating shaft.
• Body OAL(no Motor or shaft) 118" long x 82" high x 60" wide.

• 130 gal (500 liter), Open top, dish bottom. No bottom outlet.

98.6% water evaporation 4-effect falling film evaporator system Designed by Fritz Voltz sohn feed rate 3.4m3/hr, product 1.3 m3/hr Feed to 1st evaporator is 3.4 m3/hr @ 34.8% concentration and @ 104 deg C vacuum @ 4th evaporator 130 mbar Evaporator concentrations are: 1st = 42.1% @ 116 deg C 2nd = 55.8% @ 107 deg C, 3rd = 91.3% @ 81 deg C, 4th = 98.6% @ 98 deg C System consists of: (3) 46 square meter 316 stainless steel tube, head and shell falling film evaporator (1st , 2nd, 3rd effects), manufactured by APV, design pressure tubeside 0.69 bar + full vacuum @ 130 degrees C, shell 3.10 bar + full vacuum @ 140 degrees C, working pressure tubeside 0.207 bar @ 120 degrees C, shell 2.07 bar @ 130 degrees C, (44) 50mm diameter x 18 SWG X 7m long 316 stainless steel tubes, 316 stainless steel tube sheets, 560mm diameter 316 stainless steel shell with expansion joint, (1) 316 stainless steel bonnet head, (1) bolt dished bottom head, mounted on a carbon steel skirt (1) 6 square meter 316 stainless steel tube, head and shell falling film evaporator (4th effect), manufactured by APV, design pressure tubeside 2.5 bar + full vacuum @ 150 degrees C, shell 2.5 bar + full vacuum @ 150 degrees C, (14) 44mm diameter x 16G x 3.5m long 316 stainless steel tubes, 323.9mm diameter 316 stainless steel shell with expansion joint, 4295mm overall height, (1) 316 stainless steel flat bonnet head, (1) weld coned bottom, effect attached on top of a 720 liter 316 stainless steel vertical pressure separator/tank, manufactured by APV, design pressure 2.5 bar + full vacuum @ 250 degrees C, 792mm diameter x 1.5m straight side, weld dished top and bottom, mounted on legs (3) approx 600 liter 316 stainless steel vertical separators, manufactured by APV, design pressure 10 psig + full vacuum @ 130 degrees C, 775mm diameter x 1219mm straight side, weld slight coned top, weld coned bottom, (1) 10.6 square meter 316 stainless steel tube and shell horizontal condenser (1st stage), manufactured by APV, design pressure tubeside 2.5 bar + full vacuum @ 150 degrees C, shell 2.5 bar + full vacuum @ 150 degrees C, (34) 25mm diameter x 16G x 4m long 316 stainless steel tubes, (2) 316 stainless steel flat heads, 406mm diameter 316 stainless steel shell, 4.5m overall length, mounted on saddles (1) 11 square meter 316 stainless steel tube and shell horizontal condenser (2nd stage), manufactured by APV, working pressure tubeside 2.07 bar @ 35 degrees C, shell -0.9 bar + full vacuum @ 50 degrees C, (76) ¾” x 18 swg x 4145mm long 316 stainless steel tubes, (2) 316 stainless steel flat heads, 300mm diameter 316 stainless steel shell, overall length 4523mm, mounted on saddles, (3) approx 132 liter 316 stainless steel vertical pressure tanks (flash vessel), manufactured by APV, design pressure 2.5 bar + full vacuum @ 150 degrees C, 400mm diameter x 750mm straight side, bolt dished bonnet head, weld dished bottom, mounted on legs Process operation The first 3 evaporators are falling film and tube (shell & tube) evaporators, where the product flows up and down through a series of tubes which are surrounded by a heating medium, steam @ 1.8 bar is used as the heating medium The hot liquid from each evaporator is fed to its associated “separator” in which the vapour separates from the liquid and is drawn off, The 4th evaporator uses a “once-through” falling film concentrator, the unit is similar to that of a shell & tube heat exchanger except that the product falls down the unit through a number of pipes which are surrounded by a heating medium, steam @ 1.8 bar is used as the heating medium, Vacuum @ 130mbar is applied to the 4th evaporator, which draws the vapour through the first 4 evaporators. After the 4th evaporator the product is fed through a heat exchanger, where it cools the product to between 50 deg C and 70 deg C, water is used as a cooling medium, from there the product goes to storage tanks (not available)

CS, with rubber lining, Vapor Body, with Alloy support accessories, forced circulation crystallizer, part of a Zero Discharge System (ZLD). The system's major equipment consists of a shell and tube evaporator heater, Vapor body, recirculation pump and centrifuge. Rated for 50 GPM flow 10% moisture) and consumes 20 psi steam at 25,00 lbs./hr Following is a short process description: The feed from Brine Evaporator enters the recirculation piping above the recirculation pump. The feed is mixed with recirculating brine slurry and pumped through the heater where it increases in temperature and is sent to the vapor body. The hot brine flashes down to the saturation pressure inside the vessel, producing vapor and the cycle is repeated. Crystals are formed continuously in crystallizer vapor body and have to be removed. Concentrated product is removed from the system, passed through a centrifuge to remove the solid crystals and is returned to the evaporator recirculation line. The crystals are sent to a landfill. Vapor from the crystallizer is sent to a small barometric condenser using cooling water to condense the vapors. Condensate is mixed with incoming cooling water and is discharged back to the cooling tower. Vent from the condenser is vented by a CS ejector, through a silencer, and out to the atmosphere. Prime condensate from the condensed plant stream is sent back to the primary feed heater to assist in heating incoming Brine Evaporator feed. The following are main components of the system: Stock #228100- crystallizer heater is 5,700 Ft2 of surface area, with 1040 straight tubes, 1.25”OD x 0.028” wall thickness x 12 Feet long, and are constructed of Titanium. The tube sheets are SS316 Ti clad. Heads are made of SS alloy AL6XN & Shell of SS316L. The Crystallizer stock # 228156 is 16’ Dia. x 30’ Overall Height with 60” cone bottom. It is made of rubber lined Carbon steel. (the crystallizer vessel was removed , we have a drawing so a new vapor body can be constructed.) The Crystallizer recirculation pump, stock #228104 is 19,000 GPM with 150 HP motor and fabricated from SS alloy. The centrifuge stock #228101 is Bird Bowl type, 24" diameter x 38" long, rated for 18,304 Lbs./hr. with SS316L contact parts, 30 HP Motor with SS alloy product contact parts.

300 GPM Zero Discharge System brine evaporator/crystallizer system (ZLD) System includes a falling film evaporation system, with mechanical vapor recompression, and a forced circulation crystallizer. previously used by a major utility company. This process has been maintained to an excellent standard. The overall system is designed to concentrate 300 GPM flow rate Reverse Osmosis reject stream to essentially dry, land fillable solids. Distillate produced in the evaporator / crystallizer is of high quality ( less than 10 mg/l TDS excluding volatiles) and suitable to recycle. There are two 150 GPM, MVR falling film Brine Evaporators followed by a 50 GPM feed flow rate, steam driven, forced circulation type Brine evaporative crystallizer. A centrifuge is integrated with the crystallizer to produce solids suitable for a landfill. All major and minor components are included including some but not all field instrumentation. The evaporator uses "seeding" crystals in the slurry in order to prevent scale up on the tubes. Major items are as follows: Two (2) 150 GPM falling film evaporators with titanium tubes, and flood box/sump constructed of AL6XN and 316 SS. Each evaporator has a MVR system with a mechanical compressor provided by Dresser-Rand, and a recirculation pump by ITT rated for 5000 gpm. ( IPP stock numbers 228146 & 228148) ; One 50 GPM crystallizer, previously had a rubber lined vessel, but was removed due to bad rubber. (vessel can be re fabricated from either SS or CS). Also with a 3,500 sq.ft. shell and tube heat exchanger, and a recirculation pump rated for 19,000 GPM. The heater has wetted parts of AL6XN, and the pump alloy is CD4MCu. ( IPP stock numbers 228100 through 228110) Dry product is discharged through a Bird centrifuge rated for 18,000 lbs./hr. (IPP stock number 228101)

Mixer is driving a two tier 316SS 3 blade agitator 54" span upper impeller, 42" span lower impeller. Mixer drive is Inverter duty. Agitator Seal Type: Mechanical. Internal Coil or Jacket Pressure: 50 psi. Capacity in Gallons: 5,800 gallons.

Feed Heating: 316 SS plate & Frame Alfa Laval 27 Sq.Ft. & 51 Sq.Ft..

tubular evaporation system manufactured by Buflovak-Blaw-Knox. Includes 5 main pieces and support equipment such as pumps and small plate heat exchanger. Main pieces are as follows:(D) 1st effect steam chest (heat exchanger), 900 Sq Ft. NB #8255/ 9393, SN # 17669/18701, (1997) rated for 50 psi at 300 degrees on the shell, Model 1256642. 36" diameter x 10' OAL mounted vertical. (C) 1st effect vapor separator, RRFC, 42" diameter x 9' OAL with top side man way and "York" style 931 316 SS demisting mesh packing for vapor carry over.(needs to be replaced). (E) 2nd effect heater, 4' diameter x 13' OAL, with (B) 38" diameter x 8' OAL separator with cone bottom. NB # 3136, serial # 11514, Rated for MAWP Vacuum at 179 degrees F. ( HSB # 2544B) Plant # S-11181-2. With 18" man way and sight glass. With 12" interconnecting pipe, and elbow pump. Overhead condenser (A) approx. 2000 Sq. ft., 316 SS , 2/4 pass on tube side(cooling) with 12" water inlet/outlet. Discharge of overheads to distillate.
30" diameter x 10' 3" OAL, saddle mounted, with two 40 Lb. steam jets to supply vacuum.

single effect batch evaporator system with (2) reinforcing rings around straight side of vapor body With top center mounted veritcal SS condensor, manufactured by APV, approx 16" diameter x 8' straight side; ,Also with 304SS seperator tank,, National Board number 96, Serial Number 10312-3. rated FV/30 @ 297 degrees F, with 12" side tagential inlet connected to the vapor body, and a 12" top outlet connecting to a 2nd vertical condensor, 12" x 6' straight side, National Board number 99, Serial Number 10312-4, Rated 100 psi @ 150 degrees F shell side, FV/15 psi @ 175 degrees f tube side. System Includes interconnecting piping circulation pumps. Evaporator Drawing shows tubes as (38),

Jkt rated 13 bar @ 220 deg C Shell 850mm (34") dia x 4800mm (15.8') long, Rotor driven by 30 KW, 3/50/380 volt, 260 rpm output speed.

single effect falling film evaporator system, product feed approximately 300 kg/hr @ 20 degrees C, product output approximately 200 kg/hr @ 50 degrees C, system includes: shell -1/3.2 bar @ 150 degrees C (66 liter), 220mm diameter 316 stainless steel (1.4571) shell, with expansion bellows, insulated and clad, (1) 300 liter 316 stainless steel (1.4571) vertical jacketed separator vessel, manufactured by Wiegand/Becker, pressure internal -1/3.2 bar @ 150 degrees C, jacket: -1/3.2 bar @ 150 degrees C, 508mm diameter x 1500mm straight side insulated and clad, (1) 316 stainless steel (1.4571) tube, shell and head vertical preheater/condenser, manufactured by Wiegand/Becker, serial #3681, pressure tubeside -1/3.2 bar @ 150 degrees C (46 liter), shell -1/3.2 bar @ 150 degrees C, (5.6 liter), 140mm diameter x 4m long 316 stainless steel shell, (2) 316 stainless steel (1.4571) bolt dished heads, mounted on lugs, insulated and clad, (1) 316 stainless steel(1.4571) tube, shell and head vertical condenser, manufactured by Wiegand/Becker, serial #3682, pressure tubeside -1/3.2 bar @ 150 degrees C (61 liter), shell -1/3.2 bar @ 150 degrees C (25 liter), 168mm diameter x 3944mm long 316 stainless steel shell. (2) 316 stainless steel (1.4571) flat heads, Mounted on lugs, insulated and clad, (3) 316 stainless steel(1.4571) centrifugal circulation pumps, manufactured by Fristam/Stamp, (1) pump is a type FP712/120KF and (2) are type FP712/130KF, 1.1 kW/2900 rpm, openings DN40/PN16 inflow and (1) DN40/PN16 outlet driven by 1.1 kW, 220-380V/50 Hz/ 2840 rpm, ex proof (T3) motor, mounted on baseplate;
Other ancillaries include, carbon steel framework, control panel, miscellaneous stainless steel pipework,

With Condenser and Schutte & Koerting 10" thermo compressor. 246877 1450 Sq.Ft. 316 SS clad on CS 65 psi at 200 degrees F.

Mfd by Balfour/Sybron Order #48621 Lined w/glass #3115 CS jkt 98 psi @ 392 deg F Has glass covered int rotor w/graphite wipers. Retaining pins and rotor shaft are titanium. jkt body section, 48" dia x 9'10" str side; and clamp jkt cone btm.Has 3-sections: clamped dish entrainment section, 48" dia x 42" str side; jkt body section, 48" dia x 9'10" str side; and clamp jkt cone btm.

Drive is Pfaudler Type VS80-U21983, belt driven by approx 10 HP motor w/mech seal on shaft.

Short Path wiped film evaporator system with internal condensrr includes SS seperator tank Rated 2000 liter 95 liter in the jacket. Top mounted rotor drive with a 3.7 kw, 50 Hz gear motor with mechanical seal on rotor, graphite wiper on rotor. Evaporator has a side bottom discharge for product. Vessel weight empty, 2600 kg; motor and rotor 800 kg.

jkt rated 125 psi @ 350 deg F 2-zone CS jkt. 10' long evaporation section. 8-blade rotor, mech seal on shaft. Belt driven by 30 HP, 3/60/460 volt, 890 rpm TEFC motor.

Kontro wiped film evaporator shell rated 25 psi @ 750 deg F. Jacket rated 65 psi @ 750 degree F. Has removable 18" diameter rotor. Mechanical seal. Has 1/2 CS jacket with expansion joint. Has outboard bearings. Has 12" diameter inlet, 8" diameter outlet. Belt driven by 40 HP, 3/60/208/220/440 volt, 885 rpm motor, UL label.

CT-6 Centritherm evaporator Operating temperature ranges from 35 to 70 degrees C Concentration depends upon product ranges from 8:1 to 25:1. Capable of up to 92% solids

"Adjust-o-film" evaporator. jkt rated 50 psi @ 350 deg F. Belt driven by 20 HP, 3/60/230/460 volt motor.

wiped film evaporator/filmtruder body only.

jkt rated 227 psi @ 392 deg F.

jacketed wiped thin film evaporator with column and condenser pressure internal -1/3 bar @ 250/350 deg C (38ltr) jacket 29.6/26.9 bar @ 250/350 deg C (6ltr) s/steel jacket on straight side only, rotor belt driven by 1.5 kw 3/50/500 volt 710rpm Exd 3nG5 motor, Crane 109 mechanical seal, evaporator with (1) 300mm diameter x 1.8m high 316L s/steel jacketed packed column, manufactured by Dynamite Nobel, fabrik #521, pressure internal: 13 bar + vak @ 200 deg C (140ltr), jacket: 8 bar @ 200 deg C (30ltr), internal coil 8 bar @ 200 deg C (2.5ltr), bolt flat top, weld dsihed bottom, 300mm diameter x 1020mm high packing section, Sulzer packing, (1) 1.2 sqm 316L s/steel (1.4571) tube, shell and head vertical jacketed heat exchanger, pressure tube side: 6 bar @ 200 deg C (40ltr), shell side: 3 bar + vak @ 200 deg C (50ltr), jacket: 8 bar @ 200 deg C 925ltr), (34) 25mm diameter x 2mm x 2.5m long 316L s/steel tubes, shell 250mm diameter x 2140mm total length, (1) dished head, (1) flat bonnet head, all parts are TUV certified

4-effect (Kestner) falling film evaporator system product flow rate 5600 lbs/hr @ 48 degrees C, feed flow rate 22400 lbs/hr @ 90 degrees C, System consists of: (1) 24 square meter (268 square feet) 316 stainless steel tube, head and shell vertical falling film evaporator (1st effect), manufactured by APV Mitchell ltd, serial #9/388630/73, working pressure tube side 15 psig + full vacuum @ 100 degrees C, shell 9.5 psig + full vacuum @ 170 degrees C, (38) 1½” diameter x 16 swg x 20’ long 316 stainless steel tubes, 316 stainless steel tube sheets, 14” diameter 316 stainless steel shell, (2) 316 stainless steel dished heads, top head with distributor plate, mounted on lugs, (1) 57 square meter (616 square feet) 316 stainless steel tube, head and shell vertical falling film evaporator (2nd effect), manufactured by APV Mitchell ltd, serial #9/388640/73, working pressure tube side 9 psig + full vacuum @ 87 degrees C, shell 15 psig + full vacuum @ 100 degrees C, (88) 1½” diameter x 16 swg x 20’ long 316 stainless steel tubes, 316 stainless steel tube sheets, 21” diameter 316 stainless steel shell, (2) 316 stainless steel dished heads, top head with distributor plate, mounted on lugs, (1) 71 square meter (770 square feet) 316 stainless steel tube, head and shell vertical falling film evaporator (3rd effect), manufactured by APV Mitchell ltd, serial #9/388650/73, working pressure tube side full vacuum @ 71 degrees C, shell full vacuum @ 87 degrees C, (109) 1½” diameter x 16 swg x 20’ long 316 stainless steel tubes, 316 stainless steel tube sheets, 23” diameter 316 stainless steel shell, (2) 316 stainless steel dished heads, top head with distributor plate, mounted on lugs, (1) 99 square meter (1070 square feet) 316 stainless steel tube, head and shell vertical falling film evaporator (4th effect), manufactured by APV Mitchell ltd, serial #9/388660/73, working pressure tube side full vacuum @ 50 degrees C, shell full vacuum @ 70 degrees C, (151) 1½” diameter x 20’ long 316 stainless steel tubes, 316 stainless steel tube sheets, 27” diameter 316 stainless steel shell, (2) 316 stainless steel dished heads, top head with distributor plate, mounted on lugs, (1) 30 square meter (330 square feet) 316 stainless steel tube, head and shell vertical condenser (pre-heater), manufactured by Stainless Steel Plant Ltd, serial #4414, design pressure tubeside 110 psi @ 187 degrees C, shell 33 psi @ 130 degrees C, (63) 1” diameter x 20’ long 316 stainless steel tubes, 316 stainless steel tube sheets, 16” diameter 316 stainless steel shell, (2) 316 stainless steel flat heads, mounted on lugs (1) 99 square meter (1072 square feet) 316 stainless steel tube, head and shell horizontal condenser (vacuum condenser), manufactured by Stainless Steel Plant Ltd, serial #4415, design pressure tubeside 100 psi @ 50 degrees C, shell full vacuum @ 50 degrees C, (256) 1” diameter x 16’ long 316 stainless steel tubes, 2-pass tubeside, 316 stainless steel tube sheets, 25” diameter 316 stainless steel shell, (2) 316 stainless steel dished heads, mounted on saddles (1) approx 670 liter 316 stainless steel separator (1st effect), manufactured by APV, serial #388530, design pressure 17 psig + full vacuum @ 126 degrees C, 2’ 6” diameter x 4’ 6” straight side, bolt dished top, weld coned bottom, mounted on lugs, (1) approx 880 liter 316 stainless steel separator (2nd effect), manufactured by APV, serial #388540, design pressure full vacuum @ 100 degrees C, 2’ 9” diameter x 4’ 11” straight side, bolt dished top, weld coned bottom, mounted on lugs, (1) approx 1500 liter 316 stainless steel separator (3rd effect), manufactured by APV, serial #388550, design pressure 4.4 psi + full vacuum @ 80 degrees C, 3’ 3” diameter x 5’ 10” straight side, bolt dished top, weld coned bottom, mounted on lugs, (1) approx 4000 liter 316 stainless steel separator (4th effect), manufactured by APV, serial #388560, design pressure full vacuum @ 60 degrees C, 4’ 6” diameter x 8’ 3” straight side, bolt dished top, weld coned bottom, mounted on lugs,

72" OD x 111 straight side 2000 gallon capacity "U" tube heater Size 35-42 Channel head is CS Vessel includes Koch style 931 6" thick denmister. Bundle is 36" x 5', Channel head is CS. Channel head is CS.

Short Path wiped film evaporator system with internal condensor 650 liter internal 45 liter in the jacket top mounted rotor drive with a 2.2 kW/50 Hz gear motor with mechanical seal on rotor, (72) Graphit wipers on rotor wipers dimensions: 30mmx16mmx150mm; shell thickness: 8.0 mm; evaporator has a side bottom discharge for product 4.5 m² internal condensor: with (40)pipes, 25 mm outside diameter x 2270 mm long x 1.5 mm thickness

motor data: 380 V/2.2 kW/50 HZ/1420 rpm, exproof (G3), mfd by EBERHARD BAUER - Germany; (1) separately 1.3 m² s/steel cold trap, mfd by Chematec AG - Switzerland, rated tube side 2 bar, rated shell side 5 bar, 368 mm diameter x 1420 length total. Mounted on (2) lugs.