Abstract: 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 or by contacting groundwater with same. 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.

Abstract: 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 or by contacting groundwater with same This method allows for on site treatment, a high biological denitrification and a decrease in volatile organic compounds secondary pollution by the release of organic matter and nitrogen into the environment.

Abstract: 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.

Abstract: According to the present invention, a fatty acid having 10 or more carbon atom, alcohol having 12 or more carbon atom, ester of a linear saturated fatty acid having 14 or more carbon atoms and monohydric alcohol, ester of a linear saturated fatty acid having 14 or more carbon atoms and polyhydric alcohol, ester of a fatty acid having 16 or more carbon atoms and glycerine, and the like are buried into soil to decrease nitrate nitrogen and volatile organic compounds in soil and groundwater, for the purpose of decreasing nitrate nitrogen and volatile organic compounds in soil and groundwater wherein on site treatment is possible, a high biological denitrification ability and a volatile organic compound decreasing ability are provided and secondary pollution by releasing of organic matter and nitrogen into environment is extremely small.