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AgroRemed - Case studies and testimonials

AgroRemed is effective in cleanup of petroleum contaminated soils in short periods of time, typically reducing the TPH content by more than 90% within 3 weeks under favorable conditions. It is essential that the soil is moist for survival of the oil-eating bacteria present in AgroRemed. Under drought conditions this can be achieved by wetting the soil with water free from chlorine. and covering it with straw to prevent both evaporation and maintain favorable temperature in the soil. Importantly, AgroRemed has been found to help restore soil to near pre-spill condition.

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Case Studies

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ANA Shipyard is located on Elizabeth river and during additional construction work, it was found that the ground water was contaminated as a result of overlying soil contaminated with a mixture of oils and greases. Excavation of soil and replacement with clean dirt was not accepted to the VA DEQ since it would contaminate the river. It was considered that the cleanup should be done through bioremediation. AgroRemed was selected for the purpose and was sprayed over the impacted soil and monitored the wells for any free product. At the end of 4 months one of the monitoring wells showed free product in quantities that could now be pumped out using a vacuum truck. Presence of free product in such large volume indicated distinct mobilization of hydrocarbons and it was now possible to recover 139 gallons of product wheere there was almost none. Monitoring of the ground water was continued for more than one year and it did not show any contamination or free product. Final analysis of soil was done in April, 2008 and based on the results, VA DEQ has now issued No-Further-Action and the Pollution Complaint case is now closed.

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The pilot project was undertaken to determine the effectiveness of AgroRemed in a short turn around time in cleanup of soil before suggesting use of product. The results were monitored on two days on 10th day and 20th day before closing the pilot. It is seen from the results that there was a reduction of more than 30% in the values of TPH and at the end of 20 days there was a reduction in TPH of more than 90%. AgroRemed offers a long term remediation solution for a site that has had an active pollution complaint since 1991. As such IMS recommends utilization of AgroRemed as the primary means of remediation under a new corrective action plan at the site. This application should reduce the adsorbed phse of contamination at the site, which is thought to be the current source of NAPL that routinely appears in the onsite monitoring wells. Moreover it is projected that this application will reduce the vapor phase concentrations also present in the soils onsite.

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The toxicity of diesel spill was reduced facilitating healthy growth of grass and other vegetation at the site. TPH of the soil was reduced from 65,000 ppm to less than 1000 ppm by on site application. Restoration of vegetation and reduction of toxicity of spill using AgroRemed was achieved at a cost of less than $ 2,000.00.

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Highway spills involving saddle tanks of trucks are fairly common and in such cases almost 104 gallons of diesel are released in the environment. Although excavation is a preferred method, bioremediation using AgroRemed is considered another option in many situations like this one in West Virginia where the underlying cables were likely to be damaged. At the end of bioremediation, the values of TPH were reduced to less than 500 ppm and with minimum supervision and no wqaste for disposal.

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