In the year 2000, CAM signed a strategic alliance with ARCADIS with the aim of uniting our strengths and offer to our clients in Mexico, most innovative and cutting-edge in the world of groundwater and soil remediation technologies.

ARCADIS has patented the remediation "in situ" groundwater, under the so-called methodology reactive anaerobic zones through the injection of molasses, water, and iron (+ 3) on the edges of the pen or in the heart of it.

Using this technology, CAM has implemented or can implement systems of remediation for sites contaminated with the following compounds: hexavalent chromium, total chromium, cadmium, zinc, lead, copper, mercury, selenium and trans-uranium; In addition to volatile organic compounds such as: the tetrachloroethylene, trichloroethylene, 1.2 dicloroetileno, (cis or trans) 1.2 dicloroetileno, chloride of vinyl, and 1,2-dichloroethane; among others.

The system consists of the installation of injection wells, to introduce carbohydrates (molasses) and sulfates in the contaminated areas of groundwater. This native microbes Digest carbohydrates, producing conditions sulfate reducing and methanogenic in ground water, thereby creating a reactive area characterized by dissolved oxygen levels below 0.5 mg/l, potential reduction of at least-250 milivolts oxide, and a relationship of dissolved organic carbon and clean every 50: 1.

Biogeochemical conditions take a:
1) The formation of complexes and precipitation of divalent heavy metals
2) The micro-biological reduction of hexavalent chromiume
3) The anaerobic biodegradation and break the chains of chlorine in organic compounds.

At the time in which molasses is injected into the underground water, native bacteria begin to metabolize carbohydrates solution, consuming dissolved oxygen at one higher rate to which can be enriched through the underground flow. Following the reduction of dissolved oxygen, the microorganisms in groundwater begin to use alternative electron acceptors for respiration.