Cleanup Soil and Groundwater Contaminations
A&A is fully equipped to manage various hazardous situations from chemical, and oil sludge and spills inspection and removal. Our staff is certified and experienced using all safety standards to protect the community and the natural environment by restoring the site condition and recommending and implementing methods to prevent a future spill.
For the cleanup of contaminated soil and groundwater, A&A is using different types of methods based on the type of contamination levels, and the locations, and the depth of contamination. For a wide range of contaminated groundwater, the pump and treat technology is used for the remediation. The contaminated groundwater is pumped and treated above ground before being discharged to the aquifer. Effective use of pump and treat technologies requires a great knowledge of the physical properties of the type of contaminants and the geological and hydrogeological conditions of the site in order to install the most efficient filtering and pumping system. The second method of groundwater treatment is by degradation of the levels of petroleum hydrocarbons through In-Situ Chemical Oxidation (ISCO) enhanced by Zero Valent Iron (ZVI) and adsorption using colloidal Activated Carbon (AC). The method of joining AC with the ISCO is the best remedial approach to treat the contaminated groundwater with petroleum hydrocarbons, VOCs …etc.
For cleaning soil impacted with petroleum hydrocarbon, the first step is to evaluate the levels of petroleum hydrocarbon which are classified into four fractions: F1, which includes the BTEX (benzene, toluene, ethylbenzene and xylene) components, F2 which includes most of the gas/diesel hydrocarbons, F3 which includes most of the diesel/heating oil hydrocarbons, and F4 which includes the heavy oils. For each criterion there are methods that can be used: The traditional method of soil cleanup is called “Dig and Dump” which involves the excavation and disposal of contaminated soil from the location of contamination and dumping it at a landfill or other locations where the contaminated soil is not considered a hazard to human and ecological receptors. Rotary Thermal Soil Remediation, is the second recommended method to treat the contaminated soil and the discharge emission can be adjusted according to the Environment guidelines.