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Patent No. 6711769

Pillow with retractable umbrella

A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.

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Class 210/928 - PAPER MILL WASTE (E.G., WHITE WATER, BLACK LIQUOR, ETC.) TREATED


Subclass of Class 210 - Liquid purification or separation
Definition: Collection of disclosures directed to the treatment of liquid
No. of patents: 248
Last issue date: 09/09/2008


1              
NumberTitleIssue Date
7422692Raw influent treatment processes eliminating secondary biological treatment
Presently no chemicals are added in the pulp/paper mills wastewater treatment. There is a loop hole with the Biological Oxygen Demand test utilized. Regulators depend on the Biological Oxygen Demand test. All mills are discharging raw untreated wastes high in Chemic...
09/09/2008
7332095Wet oxidation
An oxidation process is described which involves subjecting a feedstock which contains oxidizable material to temperature, pressure and contact with an oxidant. Excess water and volatile oxidation products, such as carbon dioxide, formic acid and acetic acid, are re...
02/19/2008
7300539Treatment of solid containing material derived from effluent
A method of treating solid containing material derived from effluent or sludge from a plant for deinking paper, the material containing calcium in the form of one or more insoluble calcium compounds, the method including the steps of treating the material with an ac...
11/27/2007
7267772Biological process for reducing chemical and biochemical oxygen demand of pulp and paper industrial effluent
The invention provides a biological process for reduction of chemical and biological oxygen demand of pulp and paper industrial effluent using a mixed bacterial consortium comprising of bacterial strains isolated from natural sources which is capable of reducing che...
09/11/2007
7241389Oxidizing processes by oxygen transfer within a liquid medium in a reactor under pressure
Methods for oxidizing a liquid with an oxidization gas in a closed volume reactor. A feed liquid which contains compounds to be oxidized is fed into the closed volume reactor, and a feed gas containing oxygen is fed into the reactor so as to form a gas overhead abov...
07/10/2007
7201847Wastewater treatment method utilizing white rot and brown rot fungi
A method of treating wastewater sources such as sewer systems or those from pulp and paper mills which contain biomass waste involves adding white rot fungi in the presence of glucose. While glucose may be directly added to the wastewater source, it has been found t...
04/10/2007
7070696Process for flocculating suspensions
A process of flocculating and dewatering an aqueous suspension of suspended solids comprising, introducing into the suspension, (a) substantially linear polymer, (b) structured polymer, characterised in that the polymers are introduced into the substrate sequentiall...
07/04/2006
7029553Urea sulfate and urea hydrochloride in paper and pulp processing
The present invention relates to the use of urea sulfate or urea hydrochloride, or both, in process streams in the paper and pulping industries to control pH, to bring about flocculation or precipitation of various materials, and to replace all or part of the sulfur...
04/18/2006
6923912Method of wastewater treatment utilizing white rot and brown rot fungi
A method of treating wastewater sources such as those from pulp and paper mills which contain lignin involves adding white rot fungi in the presence of glucose. While glucose may be directly added to the wastewater source, it has been found to be more economical to ...
08/02/2005
6923888Process for recovering organic acids from bleaching liquors
The invention relates to a process for treating bleaching liquors from pulping processes based on organic acids. The process is characterized in that inorganic acid, such as nitric acid, phosphoric acid and/or sulphuric acid, is added into a bleaching liquor obtaine...
08/02/2005
6896806Biological process for color reduction of pulp and paper effluent
The present invention relates to a bacterium strain of accession no. MTCC 5099, a process for the preparation of innoculum of the said strain, and a process for the reduction of color from pulp mill effluent using the above said innoculum, which comprises steps of i...
05/24/2005
6887382System for treatment of manure
A waste management system dispenses liquid manure and/or sludge products onto land on which is grown a cultivar that is specially selected to perform with improved yields and stand persistence under conditions of heavy traffic, grazing, manure application and/or fer...
05/03/2005
6843886Method for handling filled reject flows in a paper or paperboard mill
A method and device for processing sewage which contains coating paste from a paper or board mill with a device operating on the principle of a double action impact mill. The device includes a first rotor (11) equipped with blades; a second rotor (12) ...
01/18/2005
6830696Treatment of spent pulping liquor with lignin separation to recover alkali pulping chemicals in manufacture of paper pulp
A method of treating spent alkaline pulping liquor (black liquor) includes the steps of providing black liquor containing lignin, and acidulating a phosphate containing material, wherein phosphoric acid is generated by the acidulating step. The black liquor is mixed...
12/14/2004
6821384Process for the treatment of fly ash, using hydrochloric acid
The invention relates to a process for the treatment of fly ash accumulating in the electro-filter of the soda recovery unit in a sulfate cellulose mill, the ash containing primarily Na sulfate, Na chloride, Na carbonate and K sulfate, to produce industrial raw mate...
11/23/2004
6805802De-watering process
Process muds are de-watered by the addition of high clay alumina. The clay is mixed with plant sludges or muds so as to cause flocculation of the solid particles, and separating the water from the solid materials, as by filtration. Various polymers and/or alum proce...
10/19/2004
6805803Process for flocculating suspensions
A process of flocculating and dewatering an aqueous suspension of suspended solids comprising, introducing into the suspension, (a) a concentrated polymer solution and, (b) a dilute polymer solution, characterised in that the concentrated and dilute polymer solution...
10/19/2004
6793809Pipe system for receiving and transporting lime sludge from a white liquor filter
The pipe system is for receiving and transporting lime sludge from a filter medium in a continuously operating pressurized filter 1 in a causticizing process, where lime sludge is scraped off from the filter medium 2 and falls down into receiving chute...
09/21/2004
6627086Methods of producing polyarylamines and using them for detackifying paint and removing color from aqueous systems
Aqueous suspensions of paints in waste waters can be treated to detackify the paint and facilitate its removal by contacting the paint suspension at a pH of from about 5 to about 14 with a polyarylamine that is produced by reacting an aldehyde with an ary...
09/30/2003
6589427Process for treatment of mixture of spent wash from distillery and black liquor from pulp and paper industry
This invention relates to a process for treating an effluent comprising a mixture of spent wash and black liquor, said process comprising mixing the effluent with a flocculating agent consisting of a mixture of salts of Group III and transition metals, mi...
07/08/2003
6551458Method and apparatus for recovering fibers from white water of paper mill
In a papermaking process, filtering of white water containing fiber material is performed by feeding the white water to a filter on a surface of which a layer of auxiliary pulp has been formed, such that the white water is filtered through the layer of au...
04/22/2003
6514379Procedure for arranging water circulations in integrated paper mill
A procedure for arranging water circulations in an integrated paper mill, the paper making process of which having three partly separate process phases concerning the water circulations (I, II, III). In the first phase, the fiber raw material is pretreate...
02/04/2003
6511611Compositions for reducing true color in waste liquids
Compositions of aluminum chlorohydrate and high molecular weight branched epichlorohydrin amine condensate polymers are applied to waste liquids, such as pulp and paper mill effluents having a lignin content, to reduce true color, The branched epichlorohy...
01/28/2003
6491827Process for reducing true color in waste liquids
Compositions of aluminum chlorohydrate and high molecular weight branched epichlorohydrin amine condensate polymers are applied to waste liquids, such as pulp and paper mill effluents having a lignin content, to reduce true color. The branched epichlorohy...
12/10/2002
6444092Process of recycling fillers and coating pigments from the preparation of paper, paperboard and cardboard
The present invention relates to a process for recycling fillers and coating pigments from the preparation of paper, paperboard and cardboard found in the residual water sludges from coating plant waste waters, deinking plants, internal water treatment pl...
09/03/2002
6409880Apparatus and process for removing fine impurities from a fibrous suspension
Process and apparatus for removing fine impurities from a fibrous suspension. The process and apparatus each provide for conveying the fibrous suspension to at least one sorting device, separating the fibrous suspension using the at least one sorting devi...
06/25/2002
6372139Circuit purification for the papermaking industry
A method for the treatment of process water or effluent from a papermaking process, in which this water is subjected to at least one anaerobic purification step, an aeration step and a solids separation step and the water is then returned to the productio...
04/16/2002
6322701Water treatment process
A process for the treatment of waste waters containing chemically reducible dissolved organic and inorganic pollutants and suspended mater in particulate or colloidal form. The process comprises of contacting the water with metallic iron or ferrous ions (...
11/27/2001
6306308Inorganic composition, process of preparation and method of use
A coagulant which is the reaction product of a trivalent metal salt (eg., FeCl3), excluding chromium salts, an acid phosphorous compound and an aluminum hydroxy chloride, and a process for preparing such coagulant. This coagulant may be effecti...
10/23/2001
6290812Method for treating process water in connection with pulp bleaching
A method treats process water containing metal ions, in connection with bleaching of lignocellulosic pulp. The method is characterized by the steps of a) adjusting the Mg2+ content of the process water to form a flocculating base for metals and...
09/18/2001
6287471Treatment of aqueous effluents by injection of carbon dioxide
The present invention relates to a process for treating more or less concentrated aqueous effluents, such as processing waters, industrial or urban waste waters, and sludges, in particular sludges derived from these waste waters. The said process comprise...
09/11/2001
6277239Process for removing fine impurities from a fibrous suspension
Apparatus for removing fine impurities from a fibrous suspension comprises a dissolution device, a pre-purification device, a wet straining device, and at least one flotation device. The wet straining device comprises at least two sorting devices present ...
08/21/2001
6258279Hydrophilic cationic dispersion polymer for paper mill color removal
This invention is directed to a method of removing color bodies from paper mill waste water comprising adding to the water an effective color-removing amount of a hydrophilic cationic dispersion polymer prepared by polymerizing i. a cationic diallyl-N,N-d...
07/10/2001
6248207Separation of solids from aqueous suspensions containing cellulosic fibers and fines
Cellulosic fines and cellulosic fibers are separated from a suspension containing the fines, the fibers and hydrophobic materials by screening the suspension to remove the fibers, and then subjecting the resultant filtrate to dispersed air flotation in th...
06/19/2001
6228215Method for countercurrent treatment of slurries
An aqueous slurry containing dissolved solids and a high concentration of suspended solids is positioned as a mat between a pair of porous endless belts to provide a composite structure. The composite structure is moved through a treating zone and subject...
05/08/2001
6217778Anionic and nonionic dispersion polymers for clarification and dewatering
This invention is directed to a method of clarifying and dewatering industrial waste water using anionic and nonionic dispersion polymers....
04/17/2001
6214166Process for recycling fillers and coating pigments from the preparation of paper, paperboard and cardboard
The present invention relates to a process for recycling fillers and coating pigments from the preparation of paper, paperboard and cardboard found in the residual water sludges from coating plant waste waters, deinking plants, internal water treatment pl...
04/10/2001
6183650Synthetic mineral microparticles and retention aid and water treatment systems and methods using such particles
A composition comprising the product precipitated in the admixing of a soluble metal salt and one or more compounds having a component selected from silicates, phosphates and borates; and a method for controlling drainage and/or retention in the formation...
02/06/2001
6180079Wet oxidizing process
In wet oxidizing process of an aqueous alkali waste which contains absorbed hydrogen sulfide and carbon dioxide, a convenient method for improving the safety in oxidizing operation and the efficiency in oxidation reaction. The process is characterized in ...
01/30/2001
6174445Treatment of water with polynucleate metal hydroxide compounds
Polynucleate metal hydroxide anionic compounds and method for their production. The compounds have the formula: Ma Nb (OH)c Xd Ye Zf.(H2 O)g wherein M is a tri- or more valent m...
01/16/2001
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