In Situ Bioremediation of Pesticides in Soil and Groundwater
23 February 2009, News release from Adventus Europe
Destruction of OCPs at Field-Scale using Innovative Chemical/Biological Treatment Methods
London, United Kingdom (February, 2009). Adventus Group was recently profiled in the prestigious REMEDIATION Journal, highlighting their patented DARAMEND® and EHC® biotechnologies.
Organochlorine pesticides (OCPs) such as DDT, Toxaphene, and Dieldrin are very persistent in the environment and can pose a threat to human health and other living organisms. They adsorb strongly to soils and do not tend to decompose naturally at a significant rate. Through extensive research and many field projects over the past decade, it has been found that the application of solid organic carbon and zero-valent iron (ZVI) to soil and groundwater facilitates the chemical and biological destruction of OCPs. A description of the treatment approach for treatment of soils and groundwater is provided, along with several case studies.
This article provides a summary of the Adventus Group's experience with treatment of organochlorine pesticides (OCPs) in soil and groundwater using DARAMEND® and EHC® bioremediation amendments. The firm has offered DARAMEND for treatment of recalcitrant compounds in soil for more than ten years in both ex situ and in situ applications. Since OCPs bind strongly to the soil matrix, contamination is often limited to the upper few feet of soil, which permits use of readily available equipment for in situ application of the DARAMEND amendments. EHC is an easily injectable version of DARAMEND that has been proven effective for in situ treatment of OCPs in groundwater. EHC and DARAMEND support treatment of a number of other inorganic and organic compounds and can therefore be used for mixed impacts. Formulations of these products are also available for simultaneous immobilization of heavy metals such as arsenic, chromium, and lead.
The combination of chemical dehalogenation mechanisms provided by ZVI, with the enzymatic dehalogenation mechanisms enabled when bacteria are provided with a suitable carbon source, results in a robust, multimechanism treatment approach for soil and groundwater contaminated with chlorinated compounds. This combined chemical/biological treatment method has been widely and successfully applied to soil and groundwater environments using the unique iron/carbon products DARAMEND and EHC. Click here for Full Report:
About The Adventus Group
Adventus Europe provides the EU marketplace with a portfolio of leading environmental remediation technologies, including patented offerings from Adventus Americas Inc., and EnviroMetal Technologies Inc. Our business model supports site owners, environmental engineers, consultants, regulators, and the academic community by providing unbiased design, and selection of the most cost-effective remediation strategies.
Adventus exclusively offers DARAMEND®, EHC® and related ZVI technologies for In Situ Chemical Reduction (ISCR) along with TERRAMEND®, AQUABLOK+, EHC-O, O-SOX, and mGCW systems to address myriad soil, sediment and groundwater impacts. Our world-class technical team is a clearly recognized industry leader. Since its inception in 2003, Adventus has successfully deployed field installations at over 1000 sites across North America, South America, Europe, Asia, and Oceania.
The Adventus family of companies is always seeking strategic partnerships with complementary remediation biotechnologies, and qualified international licensees in numerous countries. For more information contact Michael Mueller at firstname.lastname@example.org or visit us online at www.adventus.eu or www.eti.ca.
For further information please email Adventus Europe