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The landfill sells the mulch but also uses it to help biodegrade the trash in the landfill as opposed to using dirt. Mulch breaks down and dec…

Columbia Public Works Department's bioreactor specialist Adam White explains Columbia's compost landfill system at the Columbia Landfill.

Columbia's landfill compost section starts by grinding yard waste and dry wall. Eventually the product will be ground into smaller pieces and …

Columbia's landfill strains the material and eventually sells the compost mulch sells to people and businesses in the county.

Food waste, such as broccoli, sweet potatoes and peppers, compost in a wind row at the Columbia Landfill.