摘要:
A method for inhibiting methane production in naturally occurring or induced reducing conditions, thus subsequently resulting into inhibition of the biomethylation process of the heavy metals is disclosed. The disclosed inhibiting composition blocks 3-hydroxy-3-ethylglutaryl coenzyme A (HMG-CoA) reductase, and 8-hydroxy-5-deazaflavin (coenzyme F420) in the methane production pathway, due to the presence of lovastatin in the red yeast rice. As a result the methanogens are unable to produce enough quantities of methane that will result to the production of methylmetal(loids), which are usually volatile and more toxic than their inorganic counterparts due to increased water solubility and hydrophobicity.
摘要:
This method of restricting methane production in methanogenic bacteria, by the use of the enzyme and coenzyme inhibitors, works during anaerobic reductive dechlorination. Various compounds such as, but not limited to, red yeast rice, vitamin B10 derivatives, and ethanesulfonates are utilized to disrupt these different enzyme and coenzyme systems responsible for the production of methane. This method affects the competition of the methanogen and halo bacteria for the organic hydrogen donors that are injected in the soil and groundwater system during the remediation process.
摘要:
Anaerobic reductive dechlorination processes remove chlorinated solvents from contaminated subsurface soil and ground water. The presence of zero-valent metals into the remedial mixtures provides a method of buffering the pH of the reaction and also provides a source for the iron reducing bacteria that catalyze the dehalorespiration reactions. The present invention provides an alternative method to control the release rate of the zero-valent metals during dechlorination. The invention utilizes encapsulated substrates to control the release rate of zero-valent metals, therefore prolonging the biotic and abiotic processes of anaerobic reductive dechlorination while promoting sorption of hydrophobic chlorinated volatile organic compounds into the lipid coating, further enhancing the efficacy of the zero valent metal treatment.
摘要:
A method for inhibiting methane production in naturally occurring or induced reducing conditions, thus subsequently resulting into inhibition of the biomethylation process of the heavy metals is disclosed. The disclosed inhibiting composition blocks 3-hydroxy-3-ethylglutaryl coenzyme A (HMG-CoA) reductase, and 8-hydroxy-5-deazaflavin (coenzyme F420) in the methane production pathway, due to the presence of lovastatin in the red yeast rice. As a result the methanogens are unable to produce enough quantities of methane that will result to the production of methylmetal(loids), which are usually volatile and more toxic than their inorganic counterparts due to increased water solubility and hydrophobicity.
摘要:
A method for inhibiting methane and hydrogen sulfide production from anaerobic digester systems and other biogas generating mediums disclosed. The biogas generating medium is contacted with an effective amount of a composition comprising red yeast rice and iron oxide to cause inhibition of methane and hydrogen sulfide production, and is useful in biogas generating medium from animal farms, including a swine, cattle or chicken farms. The method is useful to inhibit methane and hydrogen sulfide production in sewage systems, landfills, and sediment containing organic carbon. The disclosed inhibiting composition blocks 3-hydroxy-3-ethylglutaryl coenzyme A (HMG-CoA) reductase, and 8-hydroxy-5-deazaflavin (coenzyme F420) in the methane production pathway, due to the presence of lovastatin in the red yeast rice. Furthermore the disclosed inhibiting composition prevents hydrogen sulfide formation with a competing reaction resulting into iron sulfate via reaction with iron (II) having been formed within the reducing environment from iron (III) oxide.
摘要:
Providing essential oils and/or saponins such as, garlic oil, cinnamon bark oil or powder, and lemongrass oil to an environmental medium to disrupt the enzyme and coenzyme systems, that are integral parts of the methanogenesis process. The disruption limits the growth and reproduction of the methanogens that normally compete with slower-growing, halo-respiring bacteria for the hydrogen donors within the environmental medium (either naturally occurring or provided via fermentable substrates provided to the environmental medium of part of a reduction process). The amount of methane produced during in situ remediation processes is also reduced. The essential oils/saponins are harmless to the slower-growing, halo-respiring bacteria that are utilized to dechlorinate containments in the environmental medium. The essential oils/saponins can be provided alone or along with various organic hydrogen donors, zero-valent iron (ZVI) or other surfactants in order to enhance the biodegradation (reductive dechlorination) of the targeted contaminants.
摘要:
This method of restricting methane production in methanogenic bacteria, by the use of the enzyme and coenzyme inhibitors, works during anaerobic reductive dechlorination. Various compounds such as, but not limited to, red yeast rice, vitamin B10 derivatives, and ethanesulfonates are utilized to disrupt these different enzyme and coenzyme systems responsible for the production of methane. This method affects the competition of the methanogen and halo bacteria for the organic hydrogen donors that are injected in the soil and groundwater system during the remediation process.
摘要:
A method for the removal of semi-volatile organic compounds in soils, sludges, groundwater, process water, and wastewater is presented. Oxidation and biological attenuation processes utilize persulfates and other oxidants with trivalent metals, such as ferrous iron or Mn3+, as activators. The resulting chemical oxidation process yields degradation compounds which facilitate further attenuation via biological processes.
摘要:
Anaerobic reductive dechlorination processes remove chlorinated solvents from contaminated subsurface soil and ground water. The presence of organic hydrogen donors enables anaerobic microorganisms present in the subsurface soil and groundwater to accelerate the reductive dechlorination process. The present invention provides an alternative method to control the release rate of organic hydrogen donors during dechlorination. The invention utilizes encapsulated substrates to control the release rate of organic hydrogen donors, therefore accelerating the biotic process of anaerobic reductive dechlorination.
摘要:
Chemically oxidizing a wide range of targeted contaminants in soils, sludges, groundwater, process water, and wastewater and assisting in the eventual (over time) biological attenuation of the contaminants utilizing persulfates activated by trivalent metals, such as ferric iron. The use of trivalent metal activated persulfate results in a chemical oxidation process that yields degradation compounds which facilitate further attenuation via biological processes.