Adventus Remediation Technologies

Adventus Remediation Technologies Inc. (Adventus) is a 100% Canadian owned environmental technology company that provides various environmental remediation technologies including DARAMEND® and TERRAMEND™ for treatment of soil and sediment, AQUAMEND® for wastewater, and EHC™ and mGCW systems for in situ groundwater treatment. Along with our US affiliate, Adventus Americas Inc., Adventus provides biotechnology-based remedial solutions that effectively manage complex, challenging environmental liabilities, while saving our clients significant time and money.

Our technically superior remediation solutions are proven to treat a wide range of organic contaminants by accelerating their natural attenuation in soil, sediment and ground water. Furthermore, our sister company EnviroMetal Technologies Inc. (ETI) is the worldwide leader in applications of permeable reactive barrier (PRB) technology for the remediation of contaminated groundwater. ETI provides a range of advisory and support services to site owners, remediation consultants, and contractors to assist them with the design and installation of our patented zero valent iron PRB systems as well as other passive remediation technologies. A 10-year record of successes in Adventus' application of technologies to solve complex environmental problems began within the W.R. Grace & Co. organization (NYSE:GRA).

Our portfolio of remediation successes enables us to uniquely guarantee the performance of our products and services. Adventus specializes in remedial solutions. Our business model is to support a project team by aiding in the design and selection of the most cost-effective remedial solution or strategy without predisposition or bias to the selection of our proprietary technologies. When their application is justified, however, our proven products may provide significant advantages, and then we provide these. We subsequently rely on select consultancies to support joint projects especially from engineering and construction (oversight) perspectives. Adventus technical experts specialize in soil microbiology, bioremediation, remediation design support, ground water modeling and project management.

After reading this section and attending this demonstration the attendee will have a thorough knowledge of Adventus Remediation Technologies (Adventus) products and services. Adventus is an environmental services company that provides various environmental biotechnologies including DARAMEND® and TERRAMEND™ for treatment of soil and sediment, AQUAMEND® for wastewater, and EHC™ and mGCW systems for in situ groundwater treatment.
Our sister company EnviroMetal Technologies Inc. (ETI) is the worldwide leader in applications of permeable reactive barrier (PRB) technology for the remediation of contaminated groundwater, with experience in United States, Canada, United Kingdom, Europe, Japan and Australia. ETI provides a range of advisory and support services to site owners, remediation consultants, and contractors to assist them with the design and installation of our patented PRB systems and other passive remediation technologies.

Demonstration:

Due to the nature of Adventus' and ETI's technologies a table-top demonstration will be set up to provide information regarding the above technologies. A brief description of each of these products, and their applicability, is provided below.

DARAMEND® -- advanced biological treatment technology for soil, sediment, and solid wastes contaminated with recalcitrant organic compound. DARAMEND has been used successfully throughout the world to treat over 800,000 tons of soil, sediment and solid wastes containing persistent organic contaminants such as chlorinated pesticides (Toxaphene, DDT, dieldrin), wood preservatives and organic explosives (TNT, DNT, RDX, HMX).
EHC™ -- a controlled-release, integrated carbon and zero valent iron (ZVI) source that yields redox potential (Eh; hence EHC or Redox compound) in the -500 to -650 mV range. This Eh is significantly lower than that achieved when using either organic materials (lactate, molasses, and sugars) or reduced metal alone. Eh potentials in this range facilitate the timely and effective removal of normally recalcitrant chlorinated organics (e.g., CT, PCE) and other persistent compounds without the formation of potentially problematic intermediates, such as DCE/VC from the anaerobic degradation of PCE/TCE or CF/DCM from the anaerobic degradation of CT. Also available are EHC-M for immobilization of metals and EHC-O, an oxygen supply compound that is significantly more effective and less expensive than competitive products.

TERRAMEND™ -- inorganic soil amendments that provide an optimized balance of major, minor and micronutrients designed to cost-effectively enhance bioremediation of soils, sediments and solid wastes impacted with petroleum hydrocarbons, including gasoline, diesel fuel, jet fuel, heating oil, bunker-C and a wide variety of other petroleum-based compounds. TERRAMEND technology offers the cost-effective reduction of petroleum hydrocarbon concentrations in soils, can often be applied without excavation, generates no odors or leachate, and does not result in bulking.

AQUAMEND® -- a highly efficient, stable, biological water treatment technology based on the use of specialized biocarriers and site-specific process optimization. AQUAMEND biocarriers are specially designed to enable dense bacterial colonization and to provide protection for microorganisms. AQUAMEND technology has been proven to provide low maintenance, cost effective treatment of industrial process water and groundwater containing a range of compounds including pentachlorophenol, VOCs, base neutral acid extractables (BNAs), chlorinated organics, PAHs, petroleum hydrocarbons, high COD/BOD, landfill leachate, pesticides and herbicides, organic explosives, ammonia, as well as industrial and municipal nitrate.
mGCW - microbiologically enhanced vertical groundwater circulation well (mGCW) technology significantly modifies conventional GCW systems to effect the removal of inorganic constituents (e.g., heavy metals and nitrate) and/or accelerate the biodegradation of persistent organic compounds under aerobic (e.g., high molecular-weight PAHs) or anaerobic (e.g., organic explosives, chlorinated hydrocarbons) conditions. The mGCW systems are specifically designed and uniquely configured to provide accelerated aerobic, enhanced anaerobic or sequential anaerobic/aerobic reactions. These reactions facilitate terminal destruction of persistent organics, appropriately coupled with the removal of inorganic constituents where needed. The mGCW system treats soil and groundwater simultaneously by drawing groundwater from an aquifer formation through one screen section of a multi-screened well and discharging it through another. This creates an in situ vertical groundwater circulation cell.

ISBS - In situ biogeochemical oxidation for the purposes of NAPL stabilization entails the use of modified permanganate solution (KMnO4, or NaMNO4) that is flushed through an aquifer zone suspected to contain residual NAPL. As the oxidant migrates through the targeted zone, various (bio) geochemical reactions occur between the organic COI and the oxidant, which cause the destruction or removal of NAPL. The more water soluble, the lower-molecular-weight NAPL constituents are removed at a proportionally higher rate, thus leading to a "hardening" or chemical "weathering" of the residual NAPL as it steadily loses its more labile components. This causes a net increase in NAPL viscosity, which yields a more stable, recalcitrant residual mass. In addition, the enhanced precipitation of MNO2 along the NAPL interface results in a physical coating which further reduces the flux of dissolved-phase constituents into the groundwater thereby facilitating enhanced natural attenuation processes.

PRB - Permeable reactive barriers. ETI has the exclusive commercialization rights to a patented process developed by the University of Waterloo, Waterloo, Ontario, Canada that uses zero-valent metals (commonly granular iron) to rapidly degrade halogenated volatile organic compounds (VOCs) in groundwater to non-hazardous end products. This technology known as granular iron reactive zones or iron PRB technology, has been accepted in the marketplace through over 125 applications around the globe and a 10 year track record of successful field performance. Its technical feasibility has been evaluated and supported through the publication of over 500 scientific papers [cgr.ese.ogi.edu/ironrefs]. ETI's clients including major U.S. government agencies (DoD, DOE, NASA) and large industrial companies (i.e., General Electric, Rockwell, E. I. DuPont deNumors) have recognized ETI's technology as a cost-effective long-term alternative for remediation of chlorinated compounds.

PEOPLE Adventus is managed by an established team of environmental professionals representing over 100 years of experience in the hazardous waste industry.

Alan Seech, Ph.D. - CEO/Director of Technology
Jim Mueller, Ph.D. - President, Adventus Americas
John Vogan, M.Sc. - President, EnviroMetal Technologies
Fayaz Lakhwala, Ph.D., Director of Remedial Design and Engineering Services
Kerry Bolanos-Shaw, M.Sc. - Director of Operations

HEAD

Adventus Remediation Technologies
1345 Fewster Drive
Mississauga, Ontario
L4W 2A5
(905) 273 - 5374
(905) 273 - 4367 (fax)

Adventus Americas Inc.
109 Fairfield Way #207
Bloomingdale, IL
60108
(630) 295 - 8661
(630) 295 - 8664 (fax

EnviroMetal Technologies Inc
745 Bridge St. West
Waterloo, Ontario
N2V 2G6
(519) 746-2204
(519) 746-2209

www.adventusremediation.com
www.adventus.us
www.eti.ca