Vacuum pump for lab scale bioventing

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Approximately 25% of all underground storage tank systems are known to be leaking gasoline into the environment. Bioventing is a good way to remediate soil contaminated by gasoline, including Brownfields, which typically have some form of petroleum hydrocarbon contamination.  Bioventing is the process through which nutrient and water are added to the soil to stimulate the native microbial population to degrade the contaminant. The challenge is that tests need to be done on every soil to see if the process can or should be applied to a particular site.  Therefore, a variety of biodegradation studies will be completed to determine a universal degradation expression to transfer the results from one site to another and to evaluate scale-up factors.  This will be done using three scales, micro (200g), meso (4 kg) and macro (100 kg).  The larger reactors will allow soil heterogeneity to be incorporated.  Factors to be considered in the various tests including aging of the contamination, oxygen consumption, amount of microbial growth, water content, pH, impact on soil type (permeability).Completion of the research requires a durable vacuum pump to simulate bioventing conditions in the lab, where the drawn in air provides the oxygen necessary to stimulate aerobic bacteria.  The pump requested can provide the desired flow for the meso and macro scale tests in a lubricant free environment.  In addition, it is explosion proof and has a very low decibel rating.  Both factors are important safety considerations when working in a laboratory setting. This equipment is essential to complete the proposed work on correlation evaluation and scale-up factors for transferring the lab results to the field.