Abstract: The present invention discloses the formulation and use of advanced solid-media chemical compositions in the preferred forms of pellets, tablets, capsules, or other similar forms which are designed and intended to enhance the removal of a broad range of recalcitrant organic and inorganic contaminants from a variety of difficult-to-treat environments, in particular, sediments beneath water bodies, by providing an improved means of promoting the anaerobic, biologically mediated degradation, transformation, and/or detoxification of the contaminants. Specific properties of the pellet, tablets, capsules, or other similar forms of the compositions are disclosed which enable the variation in the settling velocity of the compositions and hence the depth to which the compositions will penetrate the underlying contaminated sediments.

Abstract: Liquid chemical compositions are disclosed for anaerobic biodegradation, detoxification, and transformation of toxic organic and inorganic compounds in a contaminated geologic media under reducing conditions, including, but not limited to, denitrifying, manganese-reducing, iron-reducing and sulfate-reducing conditions. One such liquid chemical composition includes sodium nitrate in the range of one-fifth (0.2) to four (4) pounds per gallon of the chemical composition; sodium hexametaphosphate or other biologically hydrolyzable ring or linear polyphosphate in the range of one twentieth (0.05) to five (5) pounds per gallon of the chemical composition; a surfactant in the range of 0.01% to 10% by volume of the chemical composition; and a diluent in the form of water. A bioremediation apparatus is disclosed for anaerobic biodegradation, detoxification, and transformation of toxic organic and inorganic compounds in a contaminated geologic media.

Abstract: Liquid chemical compositions are disclosed for anaerobic biodegradation, detoxification, and transformation of toxic organic and inorganic compounds in a contaminated geologic media under reducing conditions, including, but not limited to, denitrifying, manganese-reducing, iron-reducing and sulfate-reducing conditions. One such liquid chemical composition includes sodium nitrate in the range of one-fifth (0.2) to four (4) pounds per gallon of the chemical composition; sodium hexametaphosphate or other biologically hydrolyzable ring or linear polyphosphate in the range of one twentieth (0.05) to five (5) pounds per gallon of the chemical composition; a surfactant in the range of 0.01% to 10% by volume of the chemical composition; and a diluent in the form of water. A method is disclosed for anaerobic biodegradation, detoxification, and transformation of toxic organic and inorganic compounds in a contaminated geologic media.