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Home My WebLink About7.h. Report on Trip to Oregon• eij� Q 2875-145TH ST W, OSQI rl �� ROSEMOUNT, MINNESOTA 5506£ Jem 612 -423-4411 TO: Mayor Knutson Councilmembers: Napper Tucker Walsh Willard FROM: Stephan Jilk, Administrator/Clerk DATE: July 31, 1987 RE: Resource Recovery Seminar Portland, Oregon I would have to sum up the conference in Oregon by saying that (1) it was most worthwhile attending and (2) it could have provided a whole lot more than it did, especially for those fairly new to the field of resource recovery. The staff of professionals chosen came from every possible aspect of projects for resource recovery. They -included design engineers, environmental engineers, lawyers, marketing people, operation personnel and government officials. The two and one-half days of presentation was broken down into two main sessions: (1) an introduction to resource recovery for rookies such as we were; and (2) presentations by the "professionals who have designed, built and run these type of projects. The introduction sessions, I-felt, did not get into the basics of various typesof facilities or a good historical perspective on this approach to our refuse problem.` The presentations were more general than they could have been, and one lengthy portion dwelled on the need for good legal counsel throughout projects such as these. The purpose of the introductory session was to "bring the rookies up to speed" on resource recovery so they could keep up with the rest of the conference. I don't think this was accomplished although the rest of the presentations were not so technical in nature so as to leave anyone in the dark wondering what was being said. The next two days included presentations on: (1) Technology available to the industry; (2) Markets for energy produced by the facilities; (3) The methods used to make decisions on the economic feasibility j of a project; (4) Different methods of financing projects; (5) Insurance and legal issues; (6) Negotiations for the sale of energy from project operations; (7) Siting issues; and (8) Approaching projectswitha "total integrated resource recovery strategy." That is considering all methods of resource recovery; i.e. burning, composting & recycling. ` Resource Recovery Sem Portland, Oregon Page 2 On Tuesday PM we were given given the opportunity to tour the Marion County Resource Recovery facility approximately one hour south of Portland. This facility would be similar in capacity, although somewhat smaller than the one we would have in Dakota County. I've attached a fact sheet on that facility for your info. The main points of interest for me from the conference were: (1) Siting issues; (2) The idea of utilizing a total integrated approach to this type of project; (3) The need to have the local community informed and involved in the project; and (4) The tour of the Marion County facility. Overall, I felt it was very worthwhile; and as we continue in the Dakota County project, I feel we should continue and expand our involvement to insure the best facility for Dakota County as well as, hopefully, Rosemount. smj Attachment i OGDEN MAFbTIN SYSTEMS* OF MARION, INC. db lqw 4850 BROOKLAKE ROAD, N.E. AN OGDEN COMPANY BROOKS, OREGON 97305 (503) 393-0890 !MARION COUNTY SOLID WASTE-TO-ENERGY FACILITY The Marion County Solid Waste -to -Energy Facility (the "Facility") receives, stores, and burns Acceptable Waste and produces electricity.. The Company is required to operate the Facility in accordance with applicable permits and environmental standards. The technology used by the Facility is a process generally known as "mass burning," in which solid waste is burned with little or no precombustion processing.. Mass burn technology has been used successfully in Europe since the early 1900s and in the United States for over 15 years. The Facility is similar to more than 350 facilities in operation throughout the world. Site Description The Facility is located on an approximately 15 -acre site, east of Exit 263 on Interstate Highway 5 and along Brooklake Road. The land is zoned so that it may be used as a resource recovery facility. The Company provides the necessary utilities, including on-site potable and industrial water systems, a septic system for sanitary wastes, and a pumping station and pipeline to the Willamette River for discharge of treated cooling and process water. Electricity for in -plant use is generated primarily by the Facility. The Facility is tied into the Portland General Electric Company electrical grid at the on-site switchyard. Natural gas service is supplied from a natural gas main, located near the site. Telephone service is supplied via an underground cable from the existing telephone lines. Facility operation After being weighed, unprocessed Acceptable Waste is delivered to a storage pit. From the pit, the waste is lifted by one of two overhead cranes and placed into one of two combustion unit charging hoppers. Combustion takes place in two boilers with integral waterwall furnaces. Each has a design capacity of 275 tons of solid waste per day and operates independently of the other. Solid waste is, lifted into the charging hoppers, then passes downward through a feed chute and is then pushed onto the stoker grates by a hydraulically operated ram feeder. To seal the feed chute from outside air infiltration and maintain control of the furnace draft, the hopper is kept filled with solid waste. In the furnace, reverse -reciprocating grates provide continued mixing, thus assisting in attaining thorough burnout of the Waste. Forced draft combustion air is supplied to the underside of the grate bars in volumes that are controlled to meet the necessary combustion conditions. The uniform air distribution also cools the grate bars to prolong grate bar life. Additional combustion air is introduced above the stoker at the front and rear walls of .the furnaces. The resulting flame turbulence prevents the escape of unburned gases from the furnace. As the hot gases move through the boiler sections of each furnace, water in the boiler tubes is heated, 'and steam is generated. The steam is directed to a`- turbine -generator (manufactured by Mitsubishi) to produce electricity. Exhaust steam from the turbine - generator is condensed in a watercooled condenser. The electricity produced flows to electrical switchgear and then over an intercon- nection line into the Portland General Electric company (PGE) grid system. Approximately 11 megawatts of the 13.1 megawatts produced is sold to the local utility. After leaving the steam generators, the combustion gases pass through dry -flue gas scrubbers for removal of HC1 and other acid gases and through baghouse-type fabric filters for removal of particulates prior to discharge through the 25$ --foot stack. This equipment is designed and furnished by American Air Filter. The Facility is the first resource recovery plant in the U.S. to use a combination of dry scrubbers and fabric filters. Bottom ash and grate siftings are discharged into a water -quenched residue removal system. From the Martin ash discharger, cooled residue is moved via vibrating conveyors and belt conveyors to an enclosed residue storage .area for final disposal at a sanitary landfill or, possibly, for recovery of secondary materials. Facility specifications do not currently include equipment for the recovery of secondary materials, but such equipment can be retrofitted in the future if such an activity is proven cost effective. The ash removal system is designed to handle any size material which can be delivered through -the feed chute and across the grates. Ash from the air pollution control equipment is collected separately and conveyed to the ash removal system for handling and disposal together with the bottom ash. The principal components of the Facility are the proprietary grate system, the overhead refuse cranes, the boilers, the dry -flue gas scrubbers, the baghousetype fabric filters, and the turbine generator set. Auxiliary equipment is provided at a level of redundancy consistent with practices common within the power - generating industry. a The stoker grate system is designed and furnished by Martin GmbH fur Umwelt- Und Energietechnik. Martin GmbH has more than 20 years of experience in the design, engineering, construction, and operation of systems for solid waste combustion and energy generation. As of the endof 1985, there were over 125 plants with Martin GmbH combustion units' in operation or - under construction. Nearly forty plants throughout the world have Martin stoker units of a capacity similar to or larger than the Marion County Facility. In the United States, there are presently several Martin plants in operation and under construction. The operating plants are located in: - Chicago, Illinois - Pinellas County, Florida - Harrisburg, Pennsylvania North Andover, Massachusetts Tulsa, Oklahoma (Units 1 and 2) - Marion County (Salem), Oregon - Hillsborough County (Tampa), Florida The plants under construction are located int Tulsa, Oklahoma (Unit 3) - Bristol, Connecticut - Alexandria/Arlington, Virginia - Indianapolis, Indiana - Babylon, New York - Stanislaus County, California - Haverhill, Massachusetts Description of Operational Responsibilies The Company has the responsibility to build, operate, maintain and repair the Facility and will do so through Ogden Allied Services, Inc. (Allied), a wholly-owned subsidiary of Ogden Corpo- ration. Allied is a service company, with over 23,000 employees, which was founded in 1888 and acquired by Ogden in 1982. Allied provides operating, mechanical maintenance and housekeeping services for a variety of residential, commercial and institutional facili- ties. Mechanical maintenance and plant responsibilities include the operation of total energy systems, heating, ventilating and air conditioning plants; painting, plumbing, carpentry, electrical and other related services all utilizing programmed preventive maintenance techniques; installation, operation, maintenance and repair of production equipment; "turn -around" services; and receiving and shipping services in manufacturing and production plants and warehouses. s . Facility Permits The Facility has the three important permits required by the Depart- ment of Environmental Quality (DEQ). The Air Contaminant Discharge Permit was issued to the Company by the DEQ on December 19, 1983. This permit requires the Facility to be designed to meet several standards The DEQ has been delegated the authority by the United States Environmental Protection Agency to review the proposed Facility under Prevention of Significant Deterioration Regulations. The Facility was issued a National Pollutant Discharge Elimination System (NPDES) Waste Discharge Permit on December 19, 1983, by the DEQ. This permit authorizes the Company to discharge treated cooling water, boiler blowdown, and demineralizer backwashto the Willamette River. This permit includes both the sanitary wastes (to be discharged to a septic tank system) and the cooling water, the boiler blowdown, and the demineralizer backwash water (to be discharged to the Willamette River). The DEQ also issued a Solid Waste Disposal Permit to the Company on December 19, 1983. This permit allows the company to establish, operate and maintain a resource recovery facility. The Company will design the Facility to comply with the requirements in this permit including the residue requirement that stipulates an initial two-week test of the residue prior to landfill disposal. (1.1) Handout Rev. 2/14/87 xaavuxUL l tY: UVteY r'ACILITY FACT SHEET �- FacilityM anion County Solid Waste-tonergy Facility 4850 Brooklake Road NE Salem (Brooks), OR 97305 Owner Ogden Martin Systems of Marion, Inc. 140 E. Ridgewood Avenue Paramus# NJ 01652 Construction Cost $47,500,000 Operation Started Shakedown operations commenced April 15, 1986 Scheduled: September 20, 1986 Contractual: March 24, 1987 Site 15 acres; Zoned Agricultural with Conditional UseVariancefor resource recovery OPERATION DATA SUPPLIER Stokers Two reverse-reciprocating grates Martin GmbH Combustion Units Two waterwall furnaces Energy Division of Zurn Industries Refuse Cranes Two cranes with 1008 redundancy Engineered Crane 6 tons, 4 cu. yds. (approx.) Systems ofAmerica each grapple Refuse burning capacity at 275 tons per day per combustion unit refuse higher heating value -- 550 tons per day combined (HHV) of 4600 Btu/lb. (MCR) Current design capacity 170,000 tons per year (two furnaces) Current permitted waste 160,000 tons per year (two furnaces) flow Guaranteed waste delivery 145,000 tons per year (two furnaces) Boiler Steam output at 66,000 lbs/hr each combustion unit Maximum Continuous --- 132,000 lbs/hr combined Rating (MCR) Steam condition at super- 655 prig/700°F heater outlet Turbine-Generator Rated at 13.1 megawatts; Mitsubishi Intl. 15,400 kVA/13.8 kV 3 phase, 60Hz uncontrolled extraction - condensing type Air Pollution Control Two dry scrubbers and two American Air Filter Equipment baghouse filters through license with Teller Environ.. Sys. Limit on particulate matter 0.03 grains/dsef corrected to emissions (per local 128 CO: including condensibles requirement) Stack 258 Feet (twin flue), steel Custodis-Cottrell' Truck Scale 120,000 lbs. all axles Reliance Electric Co. (Toledo Scales)