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1. comfort safety and efficiency of the operator In it the operator has complete control over the entire system from material feed and discharge to combustion air input and flue gas exit The KM 4 is capable of fully automatic operation which optimizes the feed rate and the fuel usage The entire system is controlled by the discharge soil temperature which is set by the operator and based on prevailing environmental standards Motors are powered by variable frequency drives which allow incremental adjustments to the feed material and air flow rates in all parts of the equipment The KM 4 has more than 20 temperature and pressure sensors and other thermocouples that monitor the various functions of the system Together with the VFDs they help the operator achieve the highest possible throughput with the least consumption of fuel System Pow er Either grid power or a genset is used to power the system For North American applications the power supply is 460V 60Hz For Europe it is 380V 50Hz The genset is sized to power all the KM 4 and feed system motors with extra capacity for lighting and incidental tools Similarly the air compressor which supplies air to the pulse jet baghouse also has additional capacity for burner operations and other air powered equipment The computer system includes a backup plus a means for logging all the input and output data received from the various drives thermocouples and other sensing2. going product upgrades specifications and designs are subject to change without notice Items shipped may differ from those described in this catalog M ulti Clone Heat Ex changer Baghouse L D Fan HMro Kean KVH4 and silo 0 Compressor Panel The Ultimate High Capacity Portable Thermal Desorber The Enviro Klean KM 4 is designed to minimize non productive time For faster mob demob the width and height dimensions are within North American and European road regulations The trailer connects to any heavy duty truck and is immediately ready for transport Set up is straightforward Unlike rotary kilns there is no cumbersome ductwork to connect and no large cranes needed to position the skids Instead the trailer is towed by the truck to a suitable reasonably level site Then a few smaller components notably the material feed and discharge system are set in place and the equipment is ready for operation Cost Effective for Smaller Projects The KM 4 is especially effective for smaller remediation projects and rapid turn around times because it can be set up in less than a day Competing equipment often requires a week or more which adds significantly to the project cost and manpower requirements When small projects are time consuming and costly the contaminated soil is frequently trucked to a central site or a landfill relocating the problem elsewhere and necessitating new fill mate
3. 3 9 6 ENVIRO KLEAN ALERT GHOUN Mic Enviro Klean s Roots Back in the 1980 s manufacturers of asphalt plants began modifying their equipment to remediate hydrocarbon contaminated soils The process was effective however fuel consumption and undesirable air emissions presented significant challenges As a result a group of engineers joined forces under the name Enviro Klean and began to explore alternate soil heating methods They created the unique Enviro Klean soil curtain design which has been modified and improved through 4 generations Each new enhancement has increased the throughput reduced energy consumption and improved air emissions Today s model the KM 4 is a testimony to the company s unceasing pursuit of perfection Certified Engineering and Manufacturing Enviro Klean equipment is engineered and manufactured in North America and meets UL CSA and European CE standards j i desorber is effective for removing All machine components are designed for years of productive service The KM 2 hydrocarbon contamination from pictured above was built in 1994 and is still in operation The drives and gear boxes hel used to power the screw conveyors and augers are top of the line Eurodrive and Baldor The electronics are Siemens The fuel system is Eclipse The heavy duty trailers feature air ride suspensions How Does It Work The Enviro Klean thermal Hydrocarbons volati
4. The government req uirements and results of these tests are shown below ra Air emissions meet or exceed all N orth American sta ndards far ble in all sation Fig EA Klean thermal desorption machines offer significantly greater savings on the capital and operational costs over similar equipment in the marketplace D These savings are attributable to tne innovative processor design and to their manufacture i in Canada The Canadian Government through the Export Development 3 Corporation EDC has agreed to back up t to 8596 ofa KM 4 Phan 0 A Uu je You can iu more raat or on this ownership advantage at the x following websites WWW ede ca and Pp r4 www northstar ca pron ae www enviroklean com 1 Analyte nbn ds riy weigh 1 Unie 1 Rs dd iri Ental Xen jm EPR 10 19 o Fe ISP n TS TIE 5 10 18 Peas eae EPH 1013 err Hx T9 D tlic vein Test Results Analylic Report Northwest Labs Lot 151785 TONET EZ Pure 22 Dex B aon Kwa HT Earp Kran Technologies In LF E E a ee ee ee E H Enviro Klean Remediation Group Inc Head Office 200 1812 152nd St 0000 P O Box 75338 White Rock B C V4B 515 ST USA 313 250 H Street Blaine WA 98230 4033 Tel 1 604 535 0427 Fax 1 604 535 0424 Toll Free 1 866 882 8020
5. appropriate grades of stainless steel for corrosion resistance or when running chlorinated compounds an all stainless machine can be the best option KM 4 HC Scrubber Option Halogenated compounds may require additional treatment in a scrubber system to remove contaminants like chlorine fluorine or bromine from the vapor stream The KM 4 is fabricated with provision for a scrubber to be added either when the machine is ordered from the factory or later when required KM 4 0R Oil Recovery Option When the feed material has hydrocarbon concentrations above 100 000ppm it can be cost effective to select the oil recovery option This model condenses the airstream and collects the volatilized hydrocarbons for reuse 5 yard hopper a 5mm 2 trommel screen and a telescoping feed conveyor that reaches to the in feed hopper on top of the KM 4 The discharge conveyor is 7 meters long 23 and carries soil from the pugmill away from the machine All the components fit on a single highway leg al trailer for transport www enviroklean com 7 KM 4 Oper ation Feed Stock Preparation Dump Discharge TT Trommel Hopper Belt Conveyor Feed Oxidizer Pugmill l Scale Feed Hopper Processor Screen Croscbelt Grizzly Preheater Conveyor KM 4 Primary Components The entire KM 4 thermal desorber including the feed system is contained on two trailers The components include grizzly dump hopper trom
6. devices In all the KM 4 s control system is the finest available today It uses world leader Siemens components to assure dependable performance and product support world wide The variable frequency drives for all the unit s motors are housed within the control house and cooled by a dedicated air conditioner The image at the right shows the quick disconnect panel on the outside wall of the control house All electrical connections are designed to withstand extremes of temperature and the rigors of on site conditions This set of connectors integrates the feed system motors with main processing unit www enviroklean com 11 Pass All Environmental Standards SOURCE EMISSIONS TESTS The following KM 3 tests were conducted in accordance with Environmental Protection Agency EPA standards as defined in document Title 40 Code of Federal Regulations Part 60 40 CFR 60 Appendix A Methods 1 2 3A 4 5 and 25A and Puget Sound Air Pollution Control Agency PSAPCA Method 5 back half extraction procedures The independent testing CODE AM TEST of Washington State ran three 3 60 minute tests The TDU processed 11 12 CY of soil per hour during the tests 16 to 18 tons EPA Method 25A was performed to quantify emissions of volatile organic compounds VO C as THC using a flame ionization analyzer FIA PSAPCA back half analysis procedures were used for consider able matter analysis
7. for removing the organics a baghouse for containing the particulate Most thermal machines use a double shell rotary drum to heat and volatilize the contaminants The residence time for soil in the drum averages 6 to 12 minutes depending on soil type moisture contaminant etc Enviro Klean has a patented soil curtain processor with an average residence time of about one minute Contaminated soil falls 1n thin layers between the processor chambers which allows for maximum heat transfer between the heated air and the soil There are three primary savings with this system less energy is required to heat the contaminants E IL narrow compact pro F T ered I through 4 soil moves through the processor faster which allows the Enviro Klean machine to do the same job as one twice its size the airstream is considerably smaller making it easier to control The net result is Enviro Klean s ability to put all three of the necessary thermal desorption components on a single highway legal trailer making the system smaller less expensive to operate and significantly reducing the capital cost Side view of a KM 3 design during construction showing three of the four processor chambers 4 yn Soil Curtain ls Inside view of a processor chamber showing the screw trough and drop zone Soil cascades down through the processors while heated air volatilizes the contaminants a a
8. heater that absorbs the thermal oxidizer s hot air to raise the temperature of the in coming feed material Air Coding and Cleaning After exiting the thermal oxidizer the hot air is cooled in an air to air heat exchanger This device requires no energy except for a fan to supply ambient air to the process The heat exchanger is required to protect the baghouse filters which in the KM 4 are a recent innovation that allows high temperature pleated elements The pleated filters significantly reduce the space requirements of the baghouse while delivering the same particulate removal as traditional filter Heated air from the thermal oxidizer is cooled by a systems proprietary heat exchanger prior to entering the baghouse A VFD controlled blower provides the correct volume of cooling air to the system The thermal oxidizer heat exchanger and baghouse are about half the size of conventional thermal systems with the same throughput because less heat is required to raise the material temperature and volatilize the hydrocarbons n__n IOMa 10 www enviroklean com c KM 4 Oper ation stem Contr ols System Operation The KM 4 employs up to date control technologies for trouble free efficient operation of the equipment These include touch screens for the operator remote temperature and pressure sensors and motors equipped with variable frequency drives Control House The air conditioned control house is designed for the
9. l oxidizer The machine can be operated in manual or automatic mode Service Enviro Klean machines are built from heavy duty components and with proper maintenance seldom require more than regular greasing and inspection of moving parts They are shipped with a detailed service manual and require approximately 2 hours of service for every 24 hours of operation Machine controls feature readily available off the shelf components with an emphasis on quality The KM 4 control house offers the ultimate in air conditioned comfort Dual touch screen monitors allow the operator to view all important machine functions simultaneously and at the same time have a clear line of sight to all the material feed and discharge processes When necessary a factory rep will travel to the machine jobsite to inspect and repair the equipment Equipment Warranty Enviro Klean warrants to the original buyer that all new equipment and material manufactured or designed by it shall be free from material defects in design and fabrication for a period of one 1 year from the date of shipment Production Warranty Enviro Klean warrants the soil plant production to meet the noted production rate subject to the following criteria oil contamination in the soil not to exceed 80 of the processor and oxidizer fuel load burner fuel to be natural gas liquid propane or 2 fuel oil plant operation at 150 meters 500 elevation or less soil gradation t
10. lize when heated to their boiling point and subsequently convert to water vapor and carbon dioxide in a thermal oxidizer The net result is reusable clean soil Enviro Klean is committed to providing competitive state of the art thermal remediation equipment that meets or exceed the toughest environmental standards world wide W hat Can it Clean For Additional Information on Thermal Desorption The US Navy has commissioned hundreds of dean ups and has complied an intensive analysis of this technology titled Application Guide for Thermal Desorption Systems It indudes the following topics 1 When to Use Thermal Desorption The Enviro Klean thermal desorber can clean gasolines jet fuel kerosene diesel lube oil virtually any petroleum product In addition with modifications these versatile machines can clean soil containing pesticides chlorinated compounds plus recover entrained oil in drill cuttings 2 Design and Performance Characteristics 3 Cost Data and Project Estimating Methodology 4 Regulatory Compliance Issues 5 Case Studies You can review a copy of this report on the Enviro Klean website at www enviroklean com USNavyReport www enviroklean com a 2 ENVIRO KLEAN RENEDIATIC GHOUN MIC The Patented Evro Kean Processor Thermal desorption machines share three common features a processor for heating the soil to release the contaminants a oxidizer or condenser
11. mel weigh belt infeed conveyor feed hopper preheater processor pugmill discharge conveyor multi clone heat exchanger baghouse I D fan compressor genset and control house Feed Stock Preparation The KM 4 feed system is compact and mounted on a single highway legal trailer Various feed and discharge components are stored or folded to facilitate transport This custom designed system screens and blends feedstock before allowing it to enter the soil processing section of the equipment A lt 10cm 4 grizzly keeps oversized material out of the dump hopper The debris is cleared remotely by the loader operator A cross belt conveys material to the lt 5cm 2 rotating trommel which aerates blends and reduces moisture before screening the material onto the feed conveyor En route to the processor the feedstock is first weighed on a computerized belt scale and then deposited into the feed storage hopper This hopper is fitted with an automatic sensor that both controls the feed rate and also maintains a End view of feed trailer system showing the front end material seal inside of the trommel screen with the opening into the dump hopper OE a 8 www enviroklean com a KM 4 Oper ation Contaminated Feed Handling Contaminated Feed Handling The KM 4 handles contaminated material efficiently by heating it quickly to volatilize the hydrocarbons This starts in the triple purpose pre heater It meters the flow
12. o be equal or less than 33 fine material equal to 63 micrometer density of the soil to be equal to or greater than 1 09kg M 85 10 16 soil specific heat equal or less than 22 and when the plant is set up and operated according to the sellers instructions S caseum m d 6 www enviroklean com me ENVIRO KLI AN KM Options and Feed System KM 4 EU 380V 50Hz Option North American KM 4 machines are designed for 460V 60Hz electricity For Europe a 380V 50Hz system is available KM 4 MF Multi Fuel Option The basic KM 4 operates on propane or natural gas It can be optionally modified to use 2 fuel oil and also be configured as a combination gas oil system KM 4 GS Genset Option The KM 4 can be connected directly to grid power or optionally to an appropriately sized generator set KM 4 FS Feed System Option It is highly recommended that the KM 4 is used together with the integrated feed trommel screen system designed to blend dry and meter the feed stock However the KM 4 s electrical and electronic system can be configured to manage other material feed designs ita Aum j Feed and Discharge Conveyor Pictured here is a typical custom feed and discharge system that works with all Enviro Klean models It includes a KM 4 SS Stainless Steel Option Although all high temperature components of the KM 4 processor oxidizer heat exchanger ducting are manufactured using
13. olume of soil compared with a rotary kiln This is accom plished by carefully manipulating the airstream to extract maximum heat transfer from the hot air to the material the volatilized hydrocarbons and the air cooling and cleaning system Heating the I Material The primary system burner is located at the base of the material processor and operates on gas or oil It has a dedicated combustion chamber that assures proper development of the flame and utilization of the combustion air The entire processor is completely foam insulated to minimize radiant heat loss An I D fan pulls the air through the system The KM 4 uses the latest generation of high temperature pleated filter elements to retain particulate within the system The bags are pulse jet cleaned and the particulate is discharged and rehydrated together with the cleaned feed material As the hot air travels through the screw conveyor arrangement in the processor most of the heat is transferred to the material This volatilizes the water and hydrocarbon liquids which are ducted from the top of the processor to the thermal oxidizer by way of the multi clone The thermal oxidizer has a secondary burner that raises the airstream temperature to 900C 1650F in order to destroy the hydrocarbons liberated from the feed material In other systems the hot air is cooled cleaned and then discharged from the system The KM 4 is unique because it uses a patent pending pre
14. rate into the processor it draws excess heat from the thermal oxidizer to begin raising the material temperature and the twin screw design further mixes and blends the feed material Contaminated material passes from the top to the bottom of the processor through a series of heavy duty screw conveyors As the material drops between chambers the finer particles which have the highest hydrocarbon contamination are exposed to the crosscurrent flow of hot air from the burner After passing through the processor the cleaned soil is discharged into the pugmill where it is mixed with water for cooling and dust control The pugmill in turn deposits the cleaned material on to the discharge conveyor that stacks it for immediate or future use as clean backfill At the junction between the lowest processor screw conveyor and the pugmill is a material temperature sensor which controls the feed rate for the entire system This sensor maintains a preset discharge temperature and makes certain the contaminated material is cleaned to environmental standards i 1 ET F End view of the Enviro Klean processor Contaminated feed enters the top of the unit and cascades down through a series of chambers until the material is cleaned On the lower left is a gas oil processor burner Particulate Handling Because the feed material is thoroughly dried to volatilize the hydrocarbons there is always a particulate component to the airstream It i
15. rial This option is environmentally unfriendly and potentially dangerous S Electrical Processor Assembly Material In feed Preheater KM 4 SPECIFICATIONS Nominal Feed Rate 18 27 tonnes 20 30 tons per hour Hydrocarbons to 25 000 mg kg and to Carbon Chain 40 at reduced throughput Contaminants Moisture 20 maximum recommended lt 15 preferred Processor Temp e 315 930 C 600 1700 Fuel Propane natural gas or 2 fuel oil CO 100 ppm to non detect VOCs Meets legal requirements for destruction 9996 to non detect Thermal Oxidizer Direct Thermal 1 2 seconds residence time 900 C 1650F Soil Classification ASTM D2487 83 GW GP SW amp SP Petroleum Contaminated Soils Cleaned to MTC Act Table V Class 2 Levels Under controlled conditions N ote Throughput varies depending on soil moisture soil type contaminant type and level See the Enviro Klean website for additional information www enviroklean com 5 ENVIRO KLEAN ARBOUR BIC Training Enviro Klean equipment is easy to learn and manage It can be run by one operator and helper Training is available when the machines are tested prior to shipping and include a compre hensive training manual for reference All the startup and shutdown controls are at a single station and include temperature monitors for various processor chambers the baghouse inlet and the therma
16. s highest with finely textured materials like clay This particulate must be removed before the airstream is filtered back into the atmosphere and the KM 4 has a number of tightly engineered systems to extract the particulate from the air clean it and discharge it with the balance of the treated material Contaminated Particulate Some feed material exits the processor as particulate in the air stream Approximately 90 is collected by the multi clone and conveyed back to the processor for further hydrocarbon removal Multi clones are more efficient than cyclones and occupy about one quarter of the space for a given particulate removal requirement The KM 4 s multi clone removes nearly all the particulate down to 50 microns Clean Particulate Handling The thermal oxidizer eliminates all hydrocarbons from the air stream however the airstream has a small amount of particulate that is conveyed to the pugmill for discharge The heat exchanger baghouse also collects a small amount of clean particulate and this is also conveyed to the pugmill for rehydration and discharge The material handling systems described above make certain that contaminated materials are cleaned to environmentally safe standards and that all material discharge from the KM 4 is immediately suitable for backfill www enviroklean com 9 KM 4 Oper ation Air Flow The Ar How Overall the KM 4 uses about half the energy to clean the same v
17. www enviroklean com 3 Erwiro Klean KVM The Standard for Fuel ficiency Patented Processor Saves 50 on Fuel Costs Traditional rotary kiln thermal desorbers use twice as much fuel for the same throughput as the KM 4 Here is how the KM 4 design squeezes every drop of potential from its burner fuel e The processor and thermal oxidizer walls are foam insulated which is up to 3 times more effective than hard refractory Radiation losses are minimal The cascading soil design helps to volatilize the hydrocarbons at 30 lower airstream temperatures And since the airstream is half the volume of a rotary kiln less energy is required to destroy the hydrocarbons in the thermal oxidizer and less energy is needed to cool the air prior to the baghouse The result of these design enhancements provides today s thermal remediation market with the fastest throughput the lowest operating cost and the most advanced options for remediating difficult hydrocarbon contamination Thermal Oxidizer Thermal In feed Burner Oxidizer Hopper E i 4 www enviroklean com KM 4 DIMENSIONS Transport Highway legal on most commercial transport roads world wide Trailer mounted Includes material processor thermal oxidizer heat exchanger and baghouse Trailer Length e 16 meters 53 Equipment Height 4 meters 13 2 Trailer Width e 2 5 meters 8 2 Total Weight 33 tonnes 73 000 Ibs Note Due to on
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