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5637212 Dry cleaning waste water treatment machine having recirculating arrangement
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oxygen from the diverted air so that oxygen enriched air containing from about 23% to 25% oxygen by volume is supplied to the intake of the engine.
A waste water treatment machine for use primarily with dry cleaning equipment to remove the solvent perchlorethylene and other contaminants from waste water so the purified water can be returned to the environment. The machine includes a collecting tank to collect waste water from both a dry cleaning machine and a dry cleaning vacuum press which vacuum waste water and solvent from garments that still remains therein after the dry cleaning operation is completed. The treatment machine pumps the collected waste water through filters and an elevated separation tank wherein the heavier than water perchlorethylene separates from the water, the machine having a re-circulation conduit through which the partially purified water above a separation level in the separation tank can flow by gravity back down for re-circulation through the filters and then pumped up again to the separation tank for additional filtering and separation of the solvent and other contaminants. The waste water can be re-circulated as many times as needed to purify the water, after which it is flowed to a heating chamber for vaporizing and discharge to the atmosphere as steam.
5636922 HEATED SOAP CHIP RECYCLER Clark Daryl 0 Bladensburg, MD, UNITED STATES A soap chip recycler presents a housing having inner and outer walls surrounding an interior, vertical compartment. The compartment presents a lower dissolution zone having a motor-driven blade assembly and a dispenser zone above the dissolution zone. A pump assembly extends through a lid, the latter engaging a rim surrounding an aperture in the top wall of the housing. The pump assembly includes a depending conduit extending into the compartment and terminating above the dissolution zone. The energized coil heats the compartment to a temperature consistent with soap liquefaction. The over/under zone relationship directs any soap particles approaching a solidified state to the bottom of the compartment for pulverization by the blade assembly so as to preclude interference with the pump assembly.
5637225 METHOD FOR FRACTIONATING SULPHITE COOKING LIQUOR
5637191 Heikkiluml a Heikk; Hyuml oky Guml oran; Kuisma Jarm Espoo, FINLAND assigned to Xyrofin Oy
TREATMENT OF CELLULOSIC MATERIAL AND COMPOSITIONS FOR USE IN THIS Langley John G; Bingham Timothy G; Stockwell John 0 West Yorkshire, UNITED KINGDOM assigned to Allied Colloids Limited A process of de-inking waste paper can be operated under conditions using a simple combination of chemicals to result in a waste liquor that is substantially environmentally friendly. The process comprises forming a pulp from the waste paper in a aqueous medium that has a pH of between 6 and 9 and that is substantially free of dissolved phosphate and that includes an ink-dispersing amount of polycarboxylic acid dispersing agent, and separating the ink from the pulp. The use of a cationic surfactant for promoting flotation is particularly desirable.
PCT No. PCT/FI94/00179 Sec. 371 Date Jan. 16,1996 Sec. 102(e) Date Jan. 16, 1996 PCT Filed May 9, 1994 PCT Pub. No. WO94/26380 PCT Pub. Date Nov. 24,1994. The invention relates to a method for the fractionation of sulphite cooking liquor by a chromatographic simulated moving bed system in which the liquid flow is effected in a system comprising at least two chromatographic sectional packing material beds. In this method, at least one fraction enriched with monosaccharides and one fraction enriched with lignosulfonates are recovered during a multi-step sequence comprising the following phases: feeding phase of sulphite cooking liquor, eluting phase and recycling phase. The liquid present in the sectional packing material beds with its dry solids profile is recycled in the recycling phase in one or more loops comprising one or more sectional packing material beds.
5637231 5637212
METHOD AND APPARATUS FOR USING OZONE IN A PRESSURE VESSEL TO TREAT STREAM OF POLLUTANTS
DRY CLEANING WASTE WATER TREATMENT MACHINE HAVING RECIRCULATING ARRANGEMENT
Lincoln Park, MI, Hill David J; Hoitash Frederick UNITED STATES assigned to Huron Valley Technology Inc
Kim Randy Orland Park, IL, UNITED STATES
320
J. Cleaner F&d.,
1997, Volume
5, Number
4
oxygen from the diverted air so that oxygen enriched air containing from about 23% to 25% oxygen by volume is supplied to the intake of the engine.
A waste water treatment machine for use primarily with dry cleaning equipment to remove the solvent perchlorethylene and other contaminants from waste water so the purified water can be returned to the environment. The machine includes a collecting tank to collect waste water from both a dry cleaning machine and a dry cleaning vacuum press which vacuum waste water and solvent from garments that still remains therein after the dry cleaning operation is completed. The treatment machine pumps the collected waste water through filters and an elevated separation tank wherein the heavier than water perchlorethylene separates from the water, the machine having a re-circulation conduit through which the partially purified water above a separation level in the separation tank can flow by gravity back down for re-circulation through the filters and then pumped up again to the separation tank for additional filtering and separation of the solvent and other contaminants. The waste water can be re-circulated as many times as needed to purify the water, after which it is flowed to a heating chamber for vaporizing and discharge to the atmosphere as steam.
5636922 HEATED SOAP CHIP RECYCLER Clark Daryl 0 Bladensburg, MD, UNITED STATES A soap chip recycler presents a housing having inner and outer walls surrounding an interior, vertical compartment. The compartment presents a lower dissolution zone having a motor-driven blade assembly and a dispenser zone above the dissolution zone. A pump assembly extends through a lid, the latter engaging a rim surrounding an aperture in the top wall of the housing. The pump assembly includes a depending conduit extending into the compartment and terminating above the dissolution zone. The energized coil heats the compartment to a temperature consistent with soap liquefaction. The over/under zone relationship directs any soap particles approaching a solidified state to the bottom of the compartment for pulverization by the blade assembly so as to preclude interference with the pump assembly.
5637225 METHOD FOR FRACTIONATING SULPHITE COOKING LIQUOR
5637191 Heikkiluml a Heikk; Hyuml oky Guml oran; Kuisma Jarm Espoo, FINLAND assigned to Xyrofin Oy
TREATMENT OF CELLULOSIC MATERIAL AND COMPOSITIONS FOR USE IN THIS Langley John G; Bingham Timothy G; Stockwell John 0 West Yorkshire, UNITED KINGDOM assigned to Allied Colloids Limited A process of de-inking waste paper can be operated under conditions using a simple combination of chemicals to result in a waste liquor that is substantially environmentally friendly. The process comprises forming a pulp from the waste paper in a aqueous medium that has a pH of between 6 and 9 and that is substantially free of dissolved phosphate and that includes an ink-dispersing amount of polycarboxylic acid dispersing agent, and separating the ink from the pulp. The use of a cationic surfactant for promoting flotation is particularly desirable.
PCT No. PCT/FI94/00179 Sec. 371 Date Jan. 16,1996 Sec. 102(e) Date Jan. 16, 1996 PCT Filed May 9, 1994 PCT Pub. No. WO94/26380 PCT Pub. Date Nov. 24,1994. The invention relates to a method for the fractionation of sulphite cooking liquor by a chromatographic simulated moving bed system in which the liquid flow is effected in a system comprising at least two chromatographic sectional packing material beds. In this method, at least one fraction enriched with monosaccharides and one fraction enriched with lignosulfonates are recovered during a multi-step sequence comprising the following phases: feeding phase of sulphite cooking liquor, eluting phase and recycling phase. The liquid present in the sectional packing material beds with its dry solids profile is recycled in the recycling phase in one or more loops comprising one or more sectional packing material beds.
5637231 5637212
METHOD AND APPARATUS FOR USING OZONE IN A PRESSURE VESSEL TO TREAT STREAM OF POLLUTANTS
DRY CLEANING WASTE WATER TREATMENT MACHINE HAVING RECIRCULATING ARRANGEMENT
Lincoln Park, MI, Hill David J; Hoitash Frederick UNITED STATES assigned to Huron Valley Technology Inc
Kim Randy Orland Park, IL, UNITED STATES
320
J. Cleaner F&d.,
1997, Volume
5, Number
4