An active army depot looking into full scale biotechnology to treat explosives contaminated soil. Reported concentrations of...

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Civil Engineering

An active army depotlooking into full scale biotechnology to treat explosivescontaminated soil. Reported concentrations of trinitrotoluene (TNT)and 1,3,5-trinitro-1,3,5-triazine (RDX) are 88,000 mg/kg and 5,250mg/kg in the blended soil, respectively.
As an environmentalengineer tasked with this site, Select the best bio-remediationoption to deal with this problem and explain your reasoning, withadvantages and disadvantages.

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Biological treatment or bioremediation is a technology that uses microorganisms to degrade organic contaminants into less hazardous compounds TriNitro Toluene TNT degrades under aerobic conditions into monoamine diaminos hydroxylamineDNT and tetranitroazoxynitrotoluenes by using Acinetobacter Corynebacterium Pseudomonas genus bacterias Similarly Researched and Developed Explosive RDX and High Melting Explosive HMX degrade into carbon dioxide and water under anaerobic conditions Rhodococcus bacterias HMX are usually treated with Methylobacterium bacterias Explosive content degradation may occur under aerobic or anaerobic conditions where the explosive compound serves as a carbon and nitrogen source Following Methods are Usually followed for bioremediation Landfarming Landfarming has been used extensively to treat soils contaminated with petroleum hydrocarbons pentachlorophenol PCP and polycyclic aromatic hydrocarbons PAHs and potentially could be used to treat low to medium concentrations of explosives as well In land farming soils are excavated to treatment plots and periodically tilled to mix in nutrients moisture and bacteria Limitation A large amount of space is required Conditions affecting biological degradation of contaminants eg temperature rain fall See Answer

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