Facility
Overview
Clean Earth of Maryland (CEM) is located just south of Hagerstown, Maryland, in Washington County. The facility occupies roughly 13 acres of a highway interchange zone near the intersection of Interstate 70 & Route 65.
Using a chemical fixation process CEM recycles non-hazardous petroleum contaminated soils, RCRA non-hazardous soil, filter cake media, foundry sand as well as aggregate based construction and demolition debris. Rubble and stone are crushed and screened to produce aggregate for sale or for use on-site.The majority of this aggregate is mixed with screened soil that has been treated with either Ca (OH)2, Portland Cement, or kiln dust or any combination thereof, to produce a stabilized material suitable for pavement sub base and sized compactable structural fill material for construction applications.
All products from CEM are processed according to the nature of the constituent materials and the intended end use.All soils are treated and processed upon arrival through a finger or trommel screen.Graded material is then stockpiled for analysis or further screened to remove plastic and wood debris before being further reduced in size by our crushing operation. Output from the crusher is segregated into size fractions using a multi-deck screen.
While producing useful end products, CEM helps conserve valuable landfill space for wastes that cannot be reasonably recycled and at the same time reduces the demand for quarrying virgin aggregates.
Treatment
Technology Platform
CEM selects the appropriate treatment method from a menu of options.Selection is based upon characteristics of the soil (primarily its handle ability and particle size distribution), availability of raw material used as additives, demand for the end product and the need to assure that oil contaminants will not leach from the end product.
CEM manufactures a variety of products which incorporate converted oil contaminated soils as a constituent:
Soil Cement: Oil contaminated soil may be mixed with other earthen material, topsoil, and/or foundry sand initially.Lime, cement kiln dust or crushed asphalt may be mixed in (using a bucket loader) to improve handlability.The material is next passed through a scalping screen where oversized material (typically greater than ¾ inch) is removed; plastic and wood debris is separated out by hand and sent to a landfill, and oversized aggregate is sent to the crusher feed pile.
Stabilized Pavement Base:Oil contaminated soil may be mixed with other earthen material, topsoil and/or foundry sand initially.Lime, cement kiln dust, crushed asphalt or fly ash is mixed in using a bucket loader or bulldozer.At least two parts additive is used for every one-part TPH.The material is next passed through a scalping or trommel screen where mixing continues.Oversized material is removed; plastic and non-recyclable debris are separated out and sent to a landfill.Oversized aggregate is sent to the crusher feed pile.The screened material may be blended with sized aggregate to adjust the mechanical properties of the end product.
Landfill Cover/Clean Fills: Manufactured using all material that CEM produces with an aggregate dimension of one inch or less on average.
Contact
Info
1469 Oak Ridge Place
Hagerstown, MD 21740
T 301-791-6220
F 301-791-6044
