TECHNOLOGY MATURATION OF DISPERSION TECHNOLOGY TO AUGMENT BIOREMEDIATION

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The data obtained from this preliminary short-term project demonstrated that dispersants such as 54GO are effective in accelerating the bio-remediation of soils containing contamination from waste oils, diesel, creosote and manufactured gas plant waste. This acceleration appears to be in the observation that 54GO quickly separates the hydrocarbon wastes from the soil particles, thereby allowing closer contact with the microbes. The project time limitations impacted the scope of data but was able to demonstrate a general reduction in the levels of contaminates. In this project only Total Petroleum Hydrocarbons [TPH] and 17 polycyclic aromatic hydrocarbons [PAH] were analyzed. These were … continued below

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26 p.

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Neely, Jerry July 1, 2000.

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The data obtained from this preliminary short-term project demonstrated that dispersants such as 54GO are effective in accelerating the bio-remediation of soils containing contamination from waste oils, diesel, creosote and manufactured gas plant waste. This acceleration appears to be in the observation that 54GO quickly separates the hydrocarbon wastes from the soil particles, thereby allowing closer contact with the microbes. The project time limitations impacted the scope of data but was able to demonstrate a general reduction in the levels of contaminates. In this project only Total Petroleum Hydrocarbons [TPH] and 17 polycyclic aromatic hydrocarbons [PAH] were analyzed. These were chosen because they are standardized by EPA methodology. The raw data from these analytical methods indicate that there are many more intermediate metabolizes from the bio-remediation process that were not identified or measured [a limitation of the 17 analyte EPA Method 8270 protocol]. The limited data from these bio-reactors indicates that when both 54GO [dispersant] and stress selected microbes are used the reduction of contaminate metabolizes is the greatest. The use of microbes alone was also effective, but not consistent and to a lesser degree. An additional observation with 54GO, either alone or with microbes is that significant amounts of hydrocarbons were extracted or released from the test soils and became a separate phase floating on the surface of these bio-reactors. The levels of floating oil in these bio-reactors made mixing and sampling difficult tasks. This latter effect of, 54GO, indicates that this family of dispersants are excellent candidates for classic soil washing techniques and may be better served by pre-treating waste soils before mixing with microbes. It is estimated that 75% or more of the hydrocarbons were in the oil phase in these bio-reactors even in low water conditions [saturated soil].

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26 p.

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OSTI as DE00764194

Medium: P; Size: 26 pages

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  • Other Information: PBD: 1 Jul 2000

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  • July 1, 2000

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  • July 13, 2020, 9:46 a.m.

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Neely, Jerry. TECHNOLOGY MATURATION OF DISPERSION TECHNOLOGY TO AUGMENT BIOREMEDIATION, report, July 1, 2000; New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc721125/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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