The present invention provides a method for promoting growth of microbes capable of degrading organic material in various wastewater streams. The method includes applying a composition that comprises fatty acids, preferably a combination of one or more saturated fatty acids and one or more unsaturated fatty acids which are shown to provide synergistically greater microbial degradation than any of the saturated or unsaturated fatty acids alone. Because the unsaturated fatty acids tend to be in the liquid phase at room temperature, it is preferred to provide the combination of saturated and unsaturated fatty acids together to form a solid particulate at room temperature and remain a solid even at elevated outdoor temperatures.
A method of decreasing nitrate nitrogen and volatile organic compounds in soil and groundwater by burying a fatty acid having 10 or more carbon atoms, an alcohol having 12 or more carbon atoms, an ester of a linear saturated fatty acid having 14 or more carbon atoms and a monohydric alcohol, an ester of a linear saturated fatty acid having 14 or more carbon atoms and a polyhydric alcohol, an ester of a fatty acid having 16 or more carbon atoms and glycerine, and the like in soil containing nitrate nitrogen and volatile organic compounds. This method allows for on site treatment, high biological denitrification and a decrease in volatile organic compounds secondary pollution by the release of organic matter and nitrogen into the environment is extremely small.
Composition and method for promoting growth of microbes that are capable of degrading animal waste. The method includes applying a nontoxic composition to a bedding substrate that is disposed to receive animal waste. The composition comprises a carboxylic acid, preferably the carboxylic acid is a fatty acid, and more preferably a combination of a saturated fatty acid and an unsaturated fatty acids. Specifically, a preferred composition comprises a saturated fatty acid having from 12 to 22 carbon atoms and an unsaturated fatty acid having from 12 to 22 carbon atoms. A still more preferred composition used both saturated and unsaturated fatty acids having from 16 to 20 carbon atoms. Optionally, the composition may include or encapsulate nutrients, an oxygen-releasing compound, or microbes.
To provide technology in denitrification promoters for typical use in wastewater treatment and methods of water treatment using such denitrification promoters, which allows nitrification and denitrification to be accomplished simultaneously in water treatment facilities using a single aerobic tank without continuous addition of methanol or other hydrogen donors that has caused difficulties in the prior art. A straight-chained saturated monocarboxylic acid having at least 6 carbon atoms or a primary alcohol having at least 12 carbon atoms is used as a main component of the denitrification promoter, which may be shaped into particles no larger than 100 mm and added into an aerobic tank, an anaerobic tank or a settling tank.
A system and method are provided for aerobic treatment of waste, such as animal or human waste. The method includes the continual introduction of microalgae. The high amounts of oxygen produced by the microalgae satisfies the biochemical oxygen demand in the treatment process and also allows oxidation of undesirable contaminants. Delivery of the microalgae at a desired rate is achieved by incorporation of a series of electrical and mechanical devices housed within a greenhouse type structure which optimizes growth conditions for the microalgae, and also allows the system to be automated.
