# US 10,501,350 B1 · System, method and bio media for stormwater treatment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,501,350 B1 - Document ID: US10501350B1 - Status: Granted - Kind: B1 - Application number: 15/493,130 - Filed: 2017-04-20 - Granted: 2019-12-10 - Earliest claimed: 2016-04-20 - Assignees: EcoSense International, Inc. - Applicants: Ecosense International, Inc. - Inventors: Randall N. Burden - Web page: https://patentgrep.com/patent/US10501350B1 ## CPC - C02F 3/305: {characterised by the denitrification} - B01J 20/165: {Natural alumino-silicates, e.g. zeolites} - B01J 20/205: {Carbon nanostructures, e.g. nanotubes, nanohorns, nanocones, nanoballs (carbon nanotubes per se C01B32/15)} - B01J 20/24: Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives - C02F 1/281: {using inorganic sorbents} - C02F 1/283: {using coal, charred products, or inorganic mixtures containing them} - C02F 3/327: {characterised by animals and plants} - C02F 2101/163: {Nitrates} - C02F 2103/001: {Runoff or storm water} - 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) - B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS ## Abstract A bio media to remove at least nitrates from collected stormwater is disclosed including natural components to at least facilitate beneficial levels of denitrification and adsorption to remove nitrates and other contaminants passing into the media. Another bio media, systems and a method are also disclosed. ## Claims ### Claim 1 A bio media to remove at least nitrates from collected stormwater, the bio media consisting of: approximately 30% to 40% by volume of a naturally formed or occurring zeolite-like material, selected from the group consisting of red lava rock and zeolite; approximately 30% to 40% by volume of a naturally formed or occurring carbon source, selected from the group consisting of lump coal, lump charcoal, and biochar; and approximately 30 to 40% by volume of a biodegradable carbon source, selected from the group consisting of corn cobs, alfalfa-based straw, and wheat-based straw. ### Claim 2 (depends on 1) The bio media of claim 1, further comprising a structure to hold the bio media. ### Claim 3 (depends on 1) The bio media of claim 1, wherein the naturally formed zeolite-like material is red lava rock. ### Claim 4 (depends on 1) The bio media of claim 1, wherein the naturally formed carbon source is lump charcoal. ### Claim 5 (depends on 1) The bio media of claim 1, wherein the naturally formed or occurring zeolite-like material comprises a framework with cavities and channels within. ### Claim 6 (depends on 1) The bio media of claim 1, wherein the biodegradable carbon source is corn cobs. ### Claim 7 A baffle box drain system located within a flow stream of a drain, the system comprising: a structure comprising: an inflow end and an outflow end, wherein the inflow end and the outflow end may be connected at least one of in-line and off-line of the drain; a plurality of separation chamber compartments terminating at a base within the structure and an open end at a part of each compartment above the base; and a denitrification subsystem located within at least one of the plurality of separation chamber compartments, the denitrification subsystem comprises a bio media consisting of: approximately 30% to 40% by volume of a naturally formed or occurring zeolite-like material, selected from the group consisting of red lava rock and zeolite; approximately 30% to 40% by volume of a naturally formed or occurring carbon source, selected from the group consisting of lump coal, lump charcoal, and biochar; and approximately 30 to 40% by volume of a biodegradable carbon source, selected from the group consisting of corn cobs, alfalfa-based straw, and wheat-based straw. ### Claim 8 A stormwater drainage system, comprising an area into which stormwater passes and a bio media to provide for denitrification of debris within the stormwater, the bio media consisting of: approximately 30% to 40% by volume of a naturally formed or occurring zeolite-like material, selected from the group consisting of red lava rock and zeolite; approximately 30% to 40% by volume of a naturally formed or occurring carbon source, selected from the group consisting of lump coal, lump charcoal, and biochar; and approximately 30 to 40% by volume of a biodegradable carbon source, selected from the group consisting of corn cobs, alfalfa-based straw, and wheat-based straw. ### Claim 9 A method comprising: passing stormwater into a structure, the structure having an inflow end and an outflow end, wherein the inflow end and the outflow end may be connected at least one of in-line and off-line of a drain; and denitrifying the stormwater with abio media consisting of: approximately 30% to 40% by volume of a naturally formed or occurring zeolite-like material, selected from the group consisting of red lava rock and zeolite; approximately 30% to 40% by volume of a naturally formed or occurring carbon source, selected from the group consisting of lump coal, lump charcoal, and biochar; and approximately 30 to 40% by volume of a biodegradable carbon source, selected from the group consisting of corn cobs, alfalfa-based straw, and wheat-based straw. ### Claim 10 (depends on 9) The method according to claim 9, further comprising removing the stormwater from the structure after denitrifying the stormwater.