|
Match
|
Document |
Document Title |
|
|
5854080 |
Process for separating tritiated water
A process and apparatus for separating tritium from an aqueous solution that contains one or more additional dissolved radionuclides is disclosed. In accordance with the process the aqueous...
|
|
|
5849194 |
Apparatus and method for treating waste water both chemically and biologically utilizing reaction fillers
The waste water treatment apparatus includes a first water tank which has an upper part and a lower part. The upper part has an air diffuser, and calcium carbonate mineral is packed in the upper...
|
|
|
5820763 |
Method for inhibiting corrosion in water systems
The water of a water system is treated to inhibit corrosion of metal components by passage through an anion exchanger preloaded with corrosion-inhibiting anions. A low molecular weight polymer is...
|
|
|
5807486 |
Process for the treatment of hazardous waste water
There is disclosed a portable assembly for treating hazardous waste water having a plurality of paired filter units having filter mediums and operated at high filter rates to minimize solids build...
|
|
|
5776346 |
Method and apparatus for making water having purified and activated functions
Method and apparatus for treating water used in daily life such as city or well water to obtain purified and activated water having various functions such as detergency, bactericidal and antifungal...
|
|
|
5773262 |
Process for the preparation of proanthocyanidins
The present invention aims at enhancing purity of the proanthocyanidin extracts by acting yeast to the proanthocyanidin extracts for fermenting them to thereby assimilate the impurities such as...
|
|
|
5773655 |
Process for the purification of an aqueous solution of a tertiary amine-oxide
The invention is concerned with a process for the purification of an aqueous solution of a tertiary amine-oxide containing impurities partially present in a dissolved and partially in a...
|
|
|
5766476 |
Method for cleaning contaminated water
This invention refers to an original solution for the purification of contaminated water streams with the activated sludge method, involving: a) a two-stage aeration system operating at high rate...
|
|
|
5720869 |
Equipment and process for producing high-purity water
A high-purity water producing equipment comprises a primary purification treatment system, a primary deionized water tank, a secondary purification treatment system for producing high-purity water...
|
|
|
5707528 |
System and process for treating organic-contaminated aqueous waste streams
A method and system for removing miscible organic compounds from contaminated water is disclosed. The system of the present invention comprises a polisher for filtering out trace amounts of...
|
|
|
5702607 |
On-site automated closed loop petroleum based hydrocarbon fluid filtration and recycling system
An on-site automated closed loop petroleum based hydrocarbon fluid filtration and recycling system that continuously recycles a spent petroleum based hydrocarbon fluid and simultaneously...
|
|
|
5679256 |
In-situ groundwater clean-up and radionuclide disposal method
A system for remediating groundwater contaminated with radionuclides, consisting of an underground bed of crushed zeolites. Distribution pipes convey contaminated groundwater to the zeolite bed by...
|
|
|
5662808 |
Process and article for disinfecting water
Disclosed is a process for disinfecting water which provides a visual indication after the disinfection is complete. First, the water to be disinfected is generally simultaneously intermixed with...
|
|
|
5647991 |
Method and apparatus for treatment of contaminated water using waste shot blast fines
A method and apparatus for removing contaminants such as heavy metals and organic pollutants from contaminated water using waste cast steel shot blast fines is described. Shot blast fines were...
|
|
|
5616691 |
Process for producing albumin preparation
The process for producing the albumin preparation of the present invention comprises treating an aqueous albumin solution with an anion exchanger and a cation exchanger and subjecting the solution...
|
|
|
5614458 |
Method for sludge conditioning
A method for conditioning sludge is disclosed which includes adding a treatment material to the sludge, the treatment material including pieces of cellulose with a hydrophobic agent applied...
|
|
|
5611932 |
Method for the purification of reclaimed aqueous N-methylmorpholine N-oxide solution
There is disclosed a method for purifying a used aqueous N-methylmorpholine N-oxide solution reclaimed from a spinning aqueous solution, which results from a coagulation solution into which a...
|
|
|
5599455 |
Detergent-free washing water, method and apparatus for making the washing water, and water/oil separation method for separating matters emulsified with the washing water into water and oil phases
Washing water containing hydroxyl ions (H 3 O 2 - ) and hydronium ions (H 3 O 2 - ) is prepared by connecting soft water generators (10), (12) each having an ion exchange resin (32), and an ion...
|
|
|
5597488 |
Method for preparing various thermal waters
A method for preparing artificial thermal water suitable to be used as domestic thermal water. In order to prepare the thermal water, a plurality of chemical components are mixed with highly pure...
|
|
|
5569365 |
Intermittent electrolytic membrane suppressor regeneration for ion chromatography
A method and apparatus using suppression of eluents for the analysis of anions or cations in ion chromatography. The invention relates to the intermittent use of the electric field during...
|
|
|
5554294 |
Method for dissolving sludge and recovering constituents therefrom
The present invention provides a method for dissolving slightly soluble sludge which is produced during chemical conversion coating of metal, which comprises agitating the sludge in an aqueous...
|
|
|
5545330 |
Water treatment system
A water treatment system and process separates contaminants from water by flotation, by forming a removable floating scum of impurities utilizing a bubbling process, by filtering out suspended...
|
|
|
5536411 |
Water and energy recovery process for an ice rink
A water and energy recovery process for an ice rink is disclosed. The process includes softening and carbon filtering water for use as flood water on an ice rink. The water is then demineralized by...
|
|
|
5482632 |
Extracting a target ion from an aqueous solution by ion exchange and electropotential ion transport
Processes and apparatuses for separating ions from an aqueous solution are provided which utilize a first separation by an ion exchange medium in combination with second separation by a D.C....
|
|
|
5460723 |
Surface water processing installation with safety barrier
A plant for the treatment of surface water comprises a safety barrier mounted at the exit from the treatment plant and constituted by a physical filter providing, at the exit from the filter, a...
|
|
|
5445741 |
Process for treating waste water
The present invention relates to a process for decreasing the content of organic-chemical substances in waste water by chemical oxidation, preferably in the presence of chlorine, and optionally...
|
|
|
5443700 |
Method for treating waste water containing oil composed of esters, and treating apparatus thereof
A method for treating waster water containing oil composed of esters, which makes reactivation of spent adsorbent possible or unnecessary, and facilitates treatment of waste adsorbent. In order to...
|
|
|
5431827 |
Device and apparatus for recovery of dry cleaning fluid, and purification of water from dry cleaning water
A discharge purification system for dry cleaning facilities is disclosed. The system comprises a series of concentric tanks providing settling and filtration treatment for water containing dry...
|
|
|
5429741 |
Sludge conditioning
Methods are described for treating sludge, e.g. biological and/or chemical sludge, with processed cellulose material combined with another material, e.g. a surface active agent, a detergent, a...
|
|
|
5405535 |
Method of removing metal impurity
A method of removing a metal impurity, including the steps of: removing oxygen dissolved in a hydrofluoric-acid-containing chemical solution; and in order to remove a metal impurity contained in...
|
|
|
5403490 |
Process and apparatus for removing solutes from solutions
An improved process and system for treating a solution of a solute which can be concentrated by forcing a portion of the solvent through a semi-permeable membrane and converted to the solid phase...
|
|
|
5350714 |
Point-of-use purification
The invention is for a process of removal of dissolved contaminants from an organic solution. The process of the invention involves placing a module containing an ion exchange resin, activated...
|
|
|
5308495 |
Chromatography processes using doped sol gel glasses as chromatographic media
Chromatography processes employ doped sol gel glasses as chromatographic media. In one embodiment, a process for qualitative or quantitative determination of a reactive chemical contained in a...
|
|
|
5268105 |
Method for dehydrating human-waste disposal materials
A method for treating used human-waste disposal materials, containing a highly water-absorbent polymer, that have absorbed the water content of human waste. Such used materials are treated with an...
|
|
|
5262058 |
Purification of hydrogen peroxide
The electronics industry demands that hydrogen peroxide for use therein be purified to very low levels of impurities, currently at the level of a few ppb for some impurities, or even lower....
|
|
|
5258123 |
Process for dewatering an aqueous solution containing solids using water-absorbent substances
A process for dewatering an aqueous fluid containing solids using water-absorbent substances is disclosed. A water-absorbent substance and a body to which the solids will adhere are added to the...
|
|
|
5248426 |
Ion chromatography system using electrochemical suppression and detector effluent recycle
A method of streamlining and lowering the cost of operation of ion chromatography as well as improving detection limits is disclosed. The apparatus includes chromatographic separating means through...
|
|
|
5196123 |
Method and apparatus for oil separation from condensate
Separation of oil from an aqueous condensate is effected by feeding the condensate into the headspace of a liquid pool containig separation tank so that a layer of oil will settle on top of water...
|
|
|
5190659 |
Contamination removal system employing filtration and plural ultraviolet and chemical treatment steps and treatment mode controller
An improved cross-flow granular filtration system involving the use of ultraviolet, ozonation, chlorination, reactive granular filtration media, chemical regeneration, and central flow control is...
|
|
|
5178768 |
Mixed filter bed composition and method of use
A mixed filter bed composition for purifying water for human consumption containing inorganic, organic and biological contaminants said composition comprising: (a) from about 40% to about 80% by...
|
|
|
5178764 |
Process for cleaning or purifying aqueous N-methylmorpholine-N-oxide solutions
An aqueous N-methylmorpholine-N-oxide solution which was used as a spinning bath in the production of cellulosic products is regenerated by contacting it with active coal, silicon dioxide or...
|
|
|
5139674 |
Method of purifying dry-cleaning solvent
Contaminants containing non-polar neutral lipid are removed from a solvent that has been used for dry cleaning by placing used solvent in contact with a lipase, which is stable and exhibits an...
|
|
|
5133865 |
Process for producing a hafnium extraction scrub solvent
A scrub solution is made up for use in starting up a hafnium liquid-liquid extraction system. An aqueous zirconium oxychloride-containing solution is contacted with methyl isobutyl ketone...
|
|
|
5132019 |
Method of removing corrosion products in a water circulation system
Particles of an ion exchange resin are brought into contact with water in a water circulation system in a power plant for capturing corrosion products and other impurities and are removed after...
|
|
|
5126050 |
Granular activated carbon-sequencing batch biofilm reactor (GAC-SBBR)
A periodic multistage process which minimizes fugitive pollutant emissions has been developed for the removal and destruction of volatile, semi-volatile, and non-volatile organic contaminants from...
|
|
|
5122276 |
Tri-modal filter canister and method of using same
A tri-modal filter canister adapted to contemporaneously remove both entrained water and suspended solid particles from non-aqueous fluids, said water and particulate removal functions being...
|
|
|
5114591 |
Organic contaminant removal from paint spray booth water
The organic material content of acid break water from the HEC process, or similar waste water, is reduced by adsorption onto macroreticular resin.
|
|
|
5104544 |
Refining of a rare earth including a process for separation by a reverse osmosis membrane
The invention is concerned with a process of separation and refining of rare earths in which a dilute solution of rare earths, resulting from the step of separating and refining the rare earths by...
|
|
|
5084104 |
Method for recovering xylose
A process for recovering xylose from pentosan-containing raw materials includes the steps of hydrolyzing the raw material, feeding the hydrolyzed material to a chromatographic column comprising a...
|
|
|
5082563 |
Methods for cleaning up liquids using absorbent pellets
Method for absorbing, removing, and for cleaning up a first liquid floating on or in a second liquid, the method employing absorbent pellets which, in preferred embodiments, have a particular size,...
|