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4~3 Comparison of Technologies Chosen in Recent <br />Research/ Procurements <br />In the foregoing studies, reports and procurements, a total of 78 technology vendors <br />were represented, evaluated, screened or in some way for consideration as <br />waste processing solutions for the local entities. These 70 vendors offered 14 <br />different technologies. The listing of the 78 vendors is presented in Table A-1 in <br />Appendix A of this paper. Several of those tech no|ogies/vendors were mentioned <br />more than once. Table 4-1 lists the 14 that were cited three or more times in the <br />various documents. <br />The most often cited technology was mass bum, represented by Covarta and <br />VVheoabratmr, who have the most commercial experience of any of the vendors <br />listed. Second on the list is gasification firm IVVT, which employs the Thannooe|ect <br />technology in use in Europe and Japan. Other gasification technology providers are <br />- <br />also mentioned, along with four anaerobic digestion vendors , one plasma arc firm <br />two pyrolysis providers and a thermal depo|ynnehzotionfirm. While this review isnot <br />systematic, it does provide a good summary of the firms and technologies that are <br />most active in the field, and those that localities across the U.S have been most <br />interested in using as they contemplate alternatives to |andfi||ing MSVV. <br />Table 4-1. TechnoUogies/VendomsMentioned in Recent Procurements <br />Vendor-designated <br />Technology <br />Vendor <br />Total <br />Times <br />Cited <br />Mass Burn <br />Covanta Energy Corporation <br />7 <br />Mass Burn <br />Wheelabrator Technologies Inc. <br />5 <br />Anaerobic Digestion,__ <br />Systems <br />Anaerobic Digestion <br />Waste Recovery Seattle, Inc. (WRSI) <br />4 <br />Anaerobic Digestion <br />Arrow Ecology and Engineering_ <br />3 <br />Anaerobic Digestion <br />Urbaser <br />3 <br />Gasification <br />Taylor Recycling Facility <br />3 <br />Gasification <br />Whitten Group /Entech Renewable Energy <br />System <br />3 <br />Plasma Gasification <br />Global Energy Solutions <br />3 <br />Pyrolysis <br />Pan American Resources <br />3 <br />Pyrolysis <br />International Environmental Solutions <br />3 <br />I Thermal Depolyrnerization <br />I Changing World Technologies <br />3 <br />GBB/C08027-01 22 August 15, 2008 <br />