# US 7,611,624 B2 · Water filtration and recycling for fabrication equipment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,611,624 B2 - Document ID: US7611624B2 - Status: Granted - Kind: B2 - Application number: 11/558,750 - Filed: 2006-11-10 - Published: 2007-03-22 - Granted: 2009-11-03 - Earliest claimed: 2003-08-28 - Assignees: Stone Industry Recycling, Inc. - Inventors: Ross E. Perry; Paula K. Perry - Web page: https://patentgrep.com/patent/US7611624B2 ## CPC - C02F 1/004: {using large scale industrial sized filters} - B01D 25/164: Chamber-plate presses, i.e. the sides of the filtering elements being clamped between two successive filtering plates (B01D25/127, B01D25/172, B01D25/176, B01D25/19 take precedence) - B01D 25/21: Plate and frame presses (B01D25/172, B01D25/176, B01D25/19 take precedence) - B01D 25/215: {Construction of the filter plates, frames} - C02F 1/32: with ultraviolet light - C02F 2103/002: {Grey water, e.g. from clothes washers, showers or dishwashers} - C02F 2103/10: from quarries or from mining activities - C02F 2103/12: from the silicate or ceramic industries, e.g. waste waters from cement or glass factories - C02F 2209/42: Liquid level - 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) - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) ## Abstract A filtered grey water recycling system includes a waste water storage tank for receiving waste water from a stone processing system and a filtered grey water supply loop providing filtered grey water to the stone processing system. The filtered grey water loop includes a separation filter for removing large particulate waste from the grey water and a particle filter for filtering smaller particulate matter. The separation filter discharges the large particulate waste into the waste water storage tank and a clear water filter loop filters waste water from the waste water storage tank through a high pressure filter and discharges the resulting clear water into the waste water storage tank. ## Claims ### Claim 1 A system for use in providing grey water and clear water to an industrial system using clear water for driving a first process and grey water for driving a second process, the system comprising: a waste water storage tank having at least one input configured to receive grey water from at least one of the first process and the second process and having a plurality of outputs configured to deliver grey water stored in the waste water storage tank; a grey water pump connected to an output of the waste water storage tank and configured to continuously pump grey water from the waste water storage tank during operation of at least the second process to at least drive at least a portion of the second process; an air pump connected to an output of the waste water storage tank and configured to pump grey water from the waste water storage tank; and a high pressure filter connected to the air pump to receive the grey water pumped by the air pump and filter the grey water to convert the grey water into the clear water to drive at least a portion of the first process. ### Claim 2 (depends on 1) The system of claim 1 wherein the grey water pump is a centrifugal pump configured to continuously pump grey water from the waste water storage tank during operation of at least one of the first process and the second process to continuously circulate grey water for pump cooling. ### Claim 3 (depends on 1) The system of claim 1 wherein the grey water pump is a centrifugal pump configured to continuously pump grey water from the waste water storage tank during operation of at least one of the first process and the second process to provide grey water on-demand during at least one of the first process and the second process. ### Claim 4 (depends on 1) The system of claim 1 further comprising a bypass path connected to the at least one input to the waste water storage tank and wherein the grey water pump is configured to continuously drive grey water into the bypass path during operation of at least one of the first process and the second process to impede sedimentation in the waste water storage. ### Claim 5 (depends on 1) The system of claim 1 further comprising at least one sensor configured to monitor a level of grey water in the waste water storage tank and provide feedback to control at least one of the grey water pump and the air pump and wherein the grey water pump and the air pump are configured to discontinue operation upon receiving feedback from the at least one sensor indicating a level of grey water in the waste water storage tank corresponding to a location of at least one of the plurality of outputs of the waste water storage tank. ### Claim 6 (depends on 5) The system of claim 5 wherein the at least one sensor includes a float configured to monitor a level of grey water in the waste water storage tank. ### Claim 7 (depends on 1) The system of claim 1 wherein the system is a closed-loop system. ### Claim 8 (depends on 1) The system of claim 1 further comprising a separation filter connected to an output of the grey water pump configured to remove particulate waste from the grey water and including a filtered grey water output connected to a grey water tool to drive the grey water tool. ### Claim 9 (depends on 8) The system of claim 8 wherein the separation filter further includes a discharge path to deliver the particulate waste removed from the grey water into the waste water storage tank. ### Claim 10 (depends on 1) The system of claim 1 wherein the high pressure filter includes at least one output discharging clear water into the waste water storage tank. ### Claim 11 (depends on 1) The system of claim 1 further comprising a clear water supply pump connected to receive clear water from the high pressure filter to pump clear water to drive at least a portion of the first process. ### Claim 12 (depends on 11) The system of claim 11 further comprising a clear water storage tank having at least one input connected to receive clear water from the high pressure filter and at least one output configured to deliver clear water to the clear water supply pump. ### Claim 13 A water treatment and recycling system for providing at least one of filtered grey water and clear water to an industrial processing system including fabrication equipment, the system comprising: a waste water storage tank receiving waste water from discharge ports of grey water equipment; a filtered grey water supply loop comprising: a grey water pump pumping waste water from the waste water storage tank; a grey water filter path receiving waste water from the grey water pump and delivering grey water to an input port of a filtered grey water tool; a grey water recycling discharge path connected to the waste water storage tank to circulate water in the waste water storage tank; a clear water filter loop comprising: a filter pump for pumping waste water from the waste water storage tank; a high pressure filter receiving the waste water from the filter pump and reducing a quantity of particulate matter in the waste water to create clear water; and a return path delivering clear water from the high pressure filter into the waste water storage tank. ### Claim 14 (depends on 13) The system of claim 13 wherein the grey water pump is a centrifugal pump configured to continuously pump grey water from the waste water storage tank to continuously cool the centrifugal pump. ### Claim 15 (depends on 13) The system of claim 13 wherein the system is a closed-loop system. ### Claim 16 (depends on 13) The system of claim 13 wherein the grey water pump is configured to continuously drive grey water into the grey water recycling discharge path to impede sedimentation in the waste water storage. ### Claim 17 (depends on 13) The system of claim 13 further comprising a clear water supply pump connected to receive clear water from the high pressure filter to pump clear water to drive to drive a clear water tool. ### Claim 18 (depends on 17) The system of claim 17 further comprising a clear water storage tank receiving clear water from the high pressure filter and delivering clear water to the clear water supply pump. ### Claim 19 (depends on 13) The system of claim 13 wherein the fabrication equipment driven by at least one of the grey water and the clear water includes at least one of a cutting tool, a grinding tool, a cooling device, and a polishing tool. ### Claim 20 (depends on 13) The system of claim 13 further comprising at least one sensor configured to monitor a level of waste water in the waste water storage tank and provide feedback to control at least the grey water pump to discontinue operation upon receiving feedback from the at least one sensor indicating a level of waste water in the waste water storage tank corresponding to a location of at least one output from the waste water storage tank. ### Claim 21 (depends on 20) The system of claim 20 wherein the at least one sensor includes a float configured to monitor a level of waste water in the waste water storage tank.