BIOREMEDIATION |
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On-site
remediation of soils and media contaminated with petrochemicals,
pesticides, explosives or hazardous organics can be an
expensive and time-consuming process. There are also serious
legal and regulatory issues to consider when decontaminating
soils on location, issues that can jeopardize the viability
of a construction or re-development project.
Waste Management, North America's leading environmental services company, has developed a collection of innovative off-site remediation technologies to help companies deal effectively with contaminated soils.
These bioremediation services include:
BioSiteSM System for the off-site remediation of petrochemical-contaminated
soilsBio-In-A-BoxSM for the off-site decontamination of all types of contaminated soils
in drums or in bulk
with explosives
THE BENEFITS OF OFF-SITE BIOREMEDIATION
Regardless of the technique used, off-site bioremediation by Waste Management offers numerous advantages over on-site treatment, windrow composting or incineration.
These include:
An environmentally friendly process Lower costs compared to treating the soil at the original site or at an intermediate location Controlled access to fully equipped, insured and permitted waste sites Stabilization of heavy metals (if any) prior to landfilling Waste Management’s comprehensive indemnification package Remediation backed by the knowledge, experience and financial resources of North America’s leading solid waste services company Off-site bioremediation services may be accessed from most North American locations via Waste Management’s WasteByRail* program.
* For more information on WasteByRail services, visit www.wastebyrail.com.
Bioremediation is conducted in specially licensed facilities situated at Waste Management landfills throughout North America. All are specifically designed, licensed and operated to provide waste generators and remediation companies with a responsive program for the expeditious removal, treatment and disposal of hazardous and non-hazardous industrial waste. (Not all facilities are licensed to accept RCRA hazardous waste.)
BIOSITESM SYSTEM
The BioSiteSM System is Waste Management's
proprietary system for the large-scale bioremediation of
soils contaminated with petrochemicals including, but not
limited to:
Acetone Alcohols Benzene Ethylbenzene Methyl Ethyl Ketone (MEK) Methyl Isobutyl Ketone (MIBK) Petroleum hydrocarbons Two- and three-ring PAHs Toluene Xylene
Aliphatic chlorinated hydrocarbons (e.g., Trichloroethylene) Chemical manufacturing wastes Pesticides Spent molecular sieve from packing towers
Regulated compounds including Underlying Hazardous Constituents (UHC) are screened prior to acceptance. Soils co-contaminated with metals may be accepted depending on their concentration.
BIO-IN-A-BOXSM
Bio-In-A-BoxSMis a Waste Management process for remediating petrochemical-contaminated soils in quantities of 1,000 cubic yards or less. In this process, the contaminated soil is moistened, mixed with nutrients and custom-grown microorganisms and then placed in enclosed containers called solid phase bio-reactors for incubation. These containers may or may not be linked to aeration and vacuum pipes, depending on the contaminants being processed. In just a few weeks, the decontaminated soil will be ready for landfill disposal or reintroduction into the environment.
TOSSSM - TWO-STEP STATIC SYSTEM**
TOSSSM is a two-stage solid phase bioremediation technology that involves both anaerobic and aerobic treatment stages. In the first stage, explosives-contaminated soil is combined with a carbon source, an innoculum, vitamins and water under anaerobic conditions. The resulting mixture is formed into a static pile or placed in a bermed construction or box to facilitate the chemical reduction of nitroaromatic and nitramine explosives.
In the second stage, the anaerobically treated soil is combined with yard waste compost and built into an aerated biopile. The biopile may be aerated by forced air conveyed through perforated piping buried within the pile or by turning the pile with a compost turner. Previous testing of TOSS SM has demonstrated TNT removal efficiencies of >99%.
** U.S. PATENT #6,066,722
SUCCESS STORIES
