Adding Nutrients Increases Long-Term Population and Bioremediation Results The goal of bioaugmentation is to improve the rate of contaminant removal by adding a high population of beneficial microbes to the contaminated media. The additional microbes should provide short-term benefit as the microbes begin metabolizing the contaminants immediately upon injection. But what benefit does bioaugmentation provide […]
Petrox® bioremediation was used to remediate pesticide-contaminated soil at an industrial location in California. Soil Remediation The soil contamination consisted of pesticides including 4,4-DDD, 4’4-DDE and toxaphene. Soil samples were sent to CL Solutions for bench-scale treatability studies. The following table shows the maximum detected concentrations and the treatment results. Contaminant Untreated Concentrations (ug/Kg) Post-treatment […]
Recent data from field applications of Petrox bioremediation show degradation rates of 100 to 500 micrograms per liter (ug/ml) per day. These degradation rates are for total petroleum hydrocarbons or total BTEX, depending on the site monitoring requirements. Achieving high degradation rates requires high initial concentrations. Initial concentrations of 1,000 to 10,000 ug/l were used […]
A bench-scale study demonstrated the viability of bioremediation of chromium contaminated ground water. The key factor to successful bioremediation was the selection of chromium-tolerant microbes. Actual contaminated ground water samples for the test. The ground water contained total chromium of 280 mg/L, with 270 mg/L hexavalent chromium. The original sample was split into four bottles, […]
Soil Recycling Prepares Site for Redevelopment A 30 acre bulk fuel facility is ready for reuse after on-site bioremediation of nearly 100,000 tons of petroleum-contaminated soil in an urban setting near Los Angeles. Bulldog Green Remediation of Walnut Creek, California used a proprietary ex situ treatment process combining Petrox organisms in a custom blend to […]
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