Agenda - Council - 06/24/1984 - Laserfiche WebLink

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CONCEPTUAL DESIGN AND PRELIMINARY OPERATING PLAN ACCELERATED DECOMPOSITION LANDFILL -- ANOKA COUNTY I SUMMARY I This report provides a conceptual design, preliminary operating plan, and cost estimate for an accelerated decomposition landfLU. The conceptual design is general enough to be Ithe 80-acre sites Anoka landfill site The accelerated applic&ble to on Cbunty's inventory, decomposition landfLLl is a component o! the County's land disposal abatement plan. The I intent of the facility is to reduce the amount of land needed for lancLfLLling by accelerating the decomposition of the refuse. The decomposed refuse will be used as a compost type of I soL[ amendment material as suitable markets are available. I The fa~J~ity was designed to dispose of aJJ the refuse generated in the County after removal of the portion of the waste stream that can be separated and recycled. The refuse I will be shredded prior to disposal to help accelerate the decomposition. I I The accelerated decomposition landfLU will be constructed in ceiLs wi',h each ceLL c~ntaining refuse generated in the County over'about a 10 year period. This co--on procedure will allow the decomposed refuse from one ceU to be mined while refuse is being placed into another ccH'in the landfill. This procedure will also allow the phased consl~uction of the liner and Ieachate collection systems. A~er a period of about 10 years, it is anticipated that the waste placed during the first year of operaton will be sufficientiy decomposed so that it can be mined and marketed as a soil amendment. The nex~ two years will be spent mining the refuse from the first two or three ceLts while refuse is being placed in the eleventh and twelfth cells. After decomposed refuse has been removed from the firs: two or three ceUs, shredded refuse wiLl'again be placed in the first cell and the decomposed refuse will be mined from the third and fourth ceUs. As long as markets can be found for the decomposed refuse, the mining and subsequent placement of refuse in the landfill ~ proceed indefinitely. I Maintaining & high moisture content in the re'use and controlling the pH of the moisture in the refuse are the two most important factors in accelerating the decomposition I .