# US 2010/0163484 A1 · Compound for denitrifying wastewater > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0163484 A1 - Document ID: US20100163484A1 - Status: Published application - Kind: A1 - Application number: 11/722,010 - Filed: 2007-06-18 - Published: 2010-07-01 - Earliest claimed: 2007-06-18 - Inventors: Murphy J. Cormier; Ronald J. Suchecki, JR.; Robert K. Pertuit; Donald L. Brown; Troy L. Cormier - Web page: https://patentgrep.com/patent/US20100163484A1 ## CPC - C07H 13/04: having the esterifying carboxyl radicals attached to acyclic carbon atoms - C02F 3/006: {Regulation methods for biological treatment} - C02F 3/302: {Nitrification and denitrification treatment (C02F3/308 takes precedence)} - C07H 3/02: Monosaccharides - C07H: SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS (derivatives of aldonic or saccharic acids C07C, C07D; aldonic acids, saccharic acids C07C59/105, C07C59/285; cyanohydrins C07C255/16; glycals C07D; compounds of unknown constitution C07G; polysaccharides, derivatives thereof C08B; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification C12N15/00; sugar industry C13) - C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes) ## Abstract Disclosed is a method of denitrifying a solution including introducing into the solution an amount of a carbon source within a duration and at a frequency so that indigenous heterotrophic bacteria deplete dissolved oxygen in the solution and decompose oxygen from nitrate in the solution to obtain its combined oxygen. Related apparatuses and compounds also are disclosed. ## Claims ### Claim 1 (canceled) ### Claim 2 (canceled) ### Claim 3 (canceled) ### Claim 4 (canceled) ### Claim 5 (canceled) ### Claim 6 (canceled) ### Claim 7 (canceled) ### Claim 8 (canceled) ### Claim 9 (canceled) ### Claim 10 (canceled) ### Claim 11 (canceled) ### Claim 12 (canceled) ### Claim 13 (canceled) ### Claim 14 (canceled) ### Claim 15 (canceled) ### Claim 16 Compound for denitrifying a solution comprising: a backbone selected from a polyol, a simple sugar and combinations thereof; and a substituent selected from: a low molecular weight organic acid radical attached with ester linkages, an alkyl group from a simple alcohol attached with ether linkages and combinations thereof; wherein said polyol is selected from ethylene glycol, propanediol, diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol, dibutyleneglycol, and combinations thereof. ### Claim 17 (canceled) ### Claim 18 (depends on 16) Compound of claim 16, wherein said simple sugar is selected from glucose, fructose, mannose, and combinations thereof. ### Claim 19 (depends on 16) Compound of claim 16, wherein said low molecular weight organic acid radical is selected from formic, acetic, propionic or buteric acids, and combinations thereof. ### Claim 20 (depends on 16) Compound of claim 16, wherein said simple alcohol is selected from methyl, ethyl, propyl or butyl alcohols, including their isomers, isopropanol, i-butanol, n-butanol, s-butanol, t-butanol and combinations thereof. ### Claim 21 (canceled) ### Claim 22 Method of denitrifying a solution comprising introducing into the solution an amount of a carbon source within a duration and at a frequency so that indigenous heterotrophic bacteria deplete dissolved oxygen in the solution and decompose oxygen from nitrate in the solution to obtain its combined oxygen. ### Claim 23 (depends on 22) Method of claim 22, wherein the carbon source is diacetin. ### Claim 24 (depends on 22) Method of claim 22, wherein the carbon source is selected from: glycerin; monoglycerides and diglycerides of the short chain fatty acids; ethers of ethylene glycol and polyethylene glycol with sufficient water solubility; propylene glycol; butylene glycol; propylene glycol esters of short chain fatty acids; butylene glycol esters of short chain fatty acids; glycerol 1,3-diacetate; glycerol 1,2-diacetate; glycerol triacetate; glycerol acetate and isomers; diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol, dibutyleneglycol and combinations thereof. ### Claim 25 (depends on 22) Method of claim 22, further comprising maintaining the solution in an anoxic condition. ### Claim 26 (depends on 22) Method of claim 22, wherein said introducing occurs when the solution has a dissolved oxygen level of at least 1 g/mL and/or exhibits an aerobic condition. ### Claim 27 (depends on 26) Method of claim 26, further comprising determining the dissolved oxygen level and/or existence of the aerobic condition based on a parameter that relates to a level of dissolved oxygen in the solution or is selected from: pH; dissolved oxygen; influent flow; effluent flow; conductivity; alkalinity; nitrates; oxidation reduction potential and combinations thereof. ### Claim 28 (depends on 22) Method of claim 22, further comprising: measuring a parameter of the solution and defining a measurement; comparing the measurement with a predetermined value; and wherein one or more of the amount, duration and frequency is determined according to a relationship between the measurement and the predetermined value. ### Claim 29 (depends on 28) Method of claim 28, wherein the parameter relates to a level of dissolved oxygen in the solution or is selected from: pH; dissolved oxygen; influent flow; effluent flow; conductivity; alkalinity; nitrates; and oxidation reduction potential and combinations thereof. ### Claim 30 Method of denitrifying a solution comprising reducing a level of dissolved oxygen in the solution sufficiently so that indigenous heterotrophic bacteria deplete the dissolved oxygen in the solution and decompose oxygen from nitrate in the solution to obtain its combined oxygen. ### Claim 31 (canceled) ### Claim 32 (canceled) ### Claim 33 (canceled) ### Claim 34 (canceled) ### Claim 35 (canceled) ### Claim 36 (canceled) ### Claim 37 Compound for denitrifying a solution comprising: a backbone selected from a polyol, a simple sugar and combinations thereof; and a substituent comprising an alkyl group from a simple alcohol attached with ether linkages; wherein said simple sugar is selected from glucose, fructose, mannose, and combinations thereof ### Claim 38 (depends on 37) Compound of claim 37, wherein said polyol is selected from ethylene glycol, glycerin, propanediol, diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol, dibutyleneglycol, and combinations thereof. ### Claim 39 (depends on 37) Compound of claim 37, wherein said simple alcohol is selected from methyl, ethyl, propyl or butyl alcohols, including their isomers, isopropanol, i-butanol, n-butanol, s-butanol, t-butanol and combinations thereof. ### Claim 40 Compound for denitrifying a solution comprising: a backbone selected from a polyol, a simple sugar and combinations thereof; and a substituent comprising an alkyl group from a simple alcohol attached with ether linkages. ### Claim 41 (depends on 40) Compound of claim 40, wherein said polyol is selected from ethylene glycol, glycerin, propanediol, diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol, dibutyleneglycol, and combinations thereof. ### Claim 42 (depends on 40) Compound of claim 40, wherein said simple sugar is selected from glucose, fructose, mannose, and combinations thereof. ### Claim 43 (depends on 40) Compound of claim 40, wherein said simple alcohol is selected from methyl, ethyl, propyl or butyl alcohols, including their isomers, isopropanol, i-butanol, n-butanol, s-butanol, t-butanol and combinations thereof. ### Claim 44 Compound for denitrifying a solution comprising: a backbone selected from a polyol, a simple sugar and combinations thereof; and a substituent selected from: a low molecular weight organic acid radical attached with ester linkages, an alkyl group from a simple alcohol attached with ether linkages and combinations thereof; wherein: said simple sugar is selected from glucose, fructose, mannose, and combinations thereof; and said polyol is selected from ethylene glycol, propanediol, diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol, dibutyleneglycol, and combinations thereof. ### Claim 45 (depends on 44) Compound of claim 44, wherein said simple alcohol is selected from methyl, ethyl, propyl or butyl alcohols, including their isomers, isopropanol, i-butanol, n-butanol, s-butanol, t-butanol and combinations thereof.