BROOKFIELD, WI (JUNE, 1996)…
HEIL ENGINEERED SYSTEMS announced it has completed a contract with the City of Rapid City, SD to manufacture, install, and start up a system to recover recyclables and prepare solid waste for composting at its new 330 ton per day regional facility.

Located at its existing landfill, the plant has become the largest MRF in South Dakota and will become the first major facility in the state to produce compost from the organic portion of municipal solid waste.  Compost will principally be used for landfill cover and mine reclamation.

Heil supplied and installed two processing lines, one (35 tph) to prepare solid waste for composting and another (10 tph) to process "blue bags" containing recyclables.

The solid waste processing line contained sorting stations for removal of "blue bags" and non-processibles, a trommel to open plastic bags, a magnetic separator for ferrous recovery and conveyors to transport the remaining waste to two (2) Dano rotary drums for homogenizing and macerating the waste in preparation for composting.

The "blue bag" line contained a bag opener to liberate the recyclables from the "blue bags", sorting stations for removal of film plastic and manual recovery of PET and HDPE, a magnetic separator to recover ferrous cans, an air classifier, a screen to divert broken glass, a glass crusher and screen, and an eddy current separator for automatic recovery of aluminum beverage cans.  Corrugated and other recovered recyclables are baled for market.