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 comprising the steps of pressurizing one or more storage tanks containing a chemical composition using an
inert carrier gas; connecting a plurality of quick disconnect valve couplings to one or more pressurized storage tanks; connecting a well to an automatic
ball valve for supplying the chemical composition and the
inert carrier gas through the well to the contaminated geologic media; and opening and closing the automatic
ball valve to dispense the chemical composition and the
inert carrier gas under pressure through the well to the contaminated geologic media. Methods are also disclosed for alternating the cycles of
redox potential and the predominant
microbial respiration pathway within the contaminated geological media.