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7591952 |
Water treatment mixture and methods and system for use
A product and apparatus for cleaning water or industrial and sewage waste water includes a mixture of diatomite that is heated and stirred to impart an enhanced negative electrical charge to the...
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7481939 |
Method for removal of phosphate from bodies of water by topical application of phosphate scavenging compositions with a hand held, hose end sprayer
This invention relates to the field of phosphate removal from a body of water, especially in pools and spas. It is an improved method of removal of phosphate from pools and spas by the topical...
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7476324 |
Methods of synthesizing a ferrate oxidant and its use in ballast water
Novel devices for synthesizing ferrate and uses thereof are described. One aspect of the invention relates to devices and systems for synthesizing ferrate at a site proximal to the site of use.
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7445718 |
Removal of arsenic from drinking and process water
A method of removing arsenic and heavy metals from water using metal salt hydroxidegels is provided. The arsenic present in water is adsorbed onto the hydroxide-gels which can effectively be...
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7438828 |
Water treatment mixture
A product and apparatus for cleaning water or industrial and sewage waste water includes a mixture of diatomite that is heated and stirred to impart an enhanced negative electrical charge to the...
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7404898 |
Method and installation for the production of lime water from deionised water
A method of producing lime water comprising deionising dilution water by membrane filtration, distillation or an ion exchange resin and adding silicate ions to the deionised water. Thereafter, the...
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7384573 |
Compositions for wastewater treatment
Methods and compositions for wastewater treatment. The compositions comprise CaCO 3 , MgCO 3 , lanthanum chloride, or chitosan, and can be applied easily with conventional wastewater treatment...
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7338617 |
Process for preparing a flocculant for water treatment
The invention provides metal-silica polymeric flocculants having high coagulation performance which are used for water treatment, particularly to remove suspended materials and other impurities...
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7314569 |
Treatment of arsenic-contaminated water using akaganeite adsorption
The present invention comprises a method and composition using akaganeite, an iron oxide, as an ion adsorption medium for the removal of arsenic from water and affixing it onto carrier media so...
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7279103 |
Process for the purification of acidic metal-bearing waste waters to permissible discharge levels with recovery of marketable metal products
Acidic metal-bearing wastewaters are treated to produce a finished water of sufficient purity to meet discharge standards while recovering metals removed in forms which are commercially valuable....
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7077963 |
Processes for water treatment
The invention provides compositions comprising bauxite refinery residues that have been reacted with sufficient calcium and magnesium ions that they have a reaction pH of less than 10.5, and one or...
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7048860 |
Material for treating acidic waste water
This invention relates to a method for treating acidic waste water, particularly mine effluent, and to a solid waste water treating material useful for the method. This waste water treating...
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6926878 |
Method for removing toxic substances in water
Arsenic and TOC are removed from drinking water or wastewaters by use of finely-divided metallic iron in the presence of powered elemental sulfur or other sulfur compounds such as manganese...
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6923917 |
Phosporous removal from animal waste
The subject invention is related to a method for removing bio-available phosphorus from animal waste and soil using an industrial byproduct from a metal manufacturing process. The byproduct is used...
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6916431 |
Precipitating chemical
The invention concerns, among other things, a precipitating chemical for separating preferably hydrocarbons from water, but also for separating other dissolved and/or suspended organic and/or...
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6896817 |
Essentially insoluble heavy metal sulfide slurry for wastewater treatment
A product and method for the removal of pollutant heavy metals from aqueous solutions which precludes the end user from storing, handling, feeding and controlling hazardous soluble sulfide...
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6863819 |
Water treatment method
The invention provides a method treating acid raw water including the step of neutralising the water by adding calcium carbonate to it in a neutralising stage. The neutralised water is then...
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6843932 |
Inorganic electrolytic coagulant and a method of transforming sludge by using this inorganic electrolytic coagulant
Contaminated sediments in such bodies of water as lakes and ponds, inner bays and rivers obtained by dredging are converted into favorable soils by adding to the contaminated sediments and aqueous...
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6830696 |
Treatment 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...
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6706197 |
Method for reducing phosphorus in a body of water
This invention provides a method for reducing phosphorous in a body of water. This method comprises calcining a plurality of rocks and collecting carbon dioxide formed as a result of the calcining...
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6607667 |
Method for adsorbing substances using silica adsorbent on magnetic substrate
Method for Absorbing substances wherein adsorbent particles comprising superparamagnetic and/or low Curie Temperature transition metal-containing cores surrounded by a hydrous siliceous oxide...
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6537464 |
Mid-basicity aluminum compounds and methods of making
A method of making poly aluminum chloride water treatment products comprising reacting an aluminum compound with a base at a temperature in the range of about 70 to 250° F., measuring the aluminum...
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6533943 |
Process for the removal of oxidizing agents
A synthesized compound that is able to neutralize oxidizing agents such as nitrates from water systems, from ground surfaces and other sites. When contaminated water is passed through the...
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6527975 |
Mineral oxide liquid concentrates for water and wastewater treatment
A process for making a mineral oxide concentrate useful as a flocculent, coagulant and/or disinfectant for the treatment of water and wastewater comprises extracting minerals from a natural mineral...
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6464883 |
Remover of fluoride ion and treatment method for wastewater containing fluoride ion using the same
The present invention relates to a remover of dissolved fluoride ion for removing fluoride ions contained in wastewater and a treatment method for wastewater containing fluoride using the same. In...
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6454963 |
Elixir for removing metals from wastewater
An elixir for treating wastewater by transforming metal sulfates into metal hydroxides, breaking up chelated metals and transforming the freed metal ions into metal hydroxides, and precluding the...
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6454949 |
Highly accelerated process for removing contaminants from liquids
A process for removing metals from wastewater, which comprises the following: measuring the flow rate and oxidation reduction potential of wastewater as it is fed into a first treatment tank,...
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6419836 |
Composition for treatment of water and reconditioning of soils
A composition for treatment of water and soils comprises components A. CaCO 3 , B. at least one compound selected from the group consisting of calcium salts, including CaCl 2 and Ca(NO 3 ) 2 ,...
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6419832 |
Process for removing dissolved uranium from water
A process for removing dissolved uranium from water is provided. The process basically comprises (a) mixing phosphoric acid or particulate bone ash with the water, (b) mixing calcium hydroxide with...
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6383398 |
Composition and process for remediation of waste streams
A remediation agent and process produces a treated water that meets discharge standards required by local regulations and generates stabilized waste which does not require further treatment prior...
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6375919 |
Method for the manufacture of ferric sulfate solution and a water treatment agent using the same
A method for the manufacture of a ferric sulfate solution is provided, characterized in that, iron ore containing 30% by weight or more FeOOH as a trivalent iron (Fe 3+ ) is calcined at 200-600°...
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6358365 |
Metal silicates, cellulose products, and processes thereof
Aqueous composition, including a water-soluble metal silicate complex which includes at least one divalent metal. A process for preparing an aqueous composition including water-soluble metal...
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6322701 |
Water 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...
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6319412 |
Wastewater treatment process
This invention relates to wastewater treatment, process and preferred systems for practice of the process for the removal of organic and inorganic ingredients contaminating wastewater, thereby to...
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6207059 |
Process for treating wastewater
The present invention entails a composition and process for treating wastewater. The composition is made up of calcium hydroxide, bauxite, and activated carbon. This composition is mixed and...
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6174445 |
Treatment of water with polynucleate metal hydroxide compounds
Polynucleate metal hydroxide anionic compounds and method for their production. The compounds have the formula: M a N b (OH) c X d Y e Z f .(H 2 O) g wherein M is a tri- or more valent...
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6146539 |
Treatment of swimming pool water
Methods and compositions are disclosed for treating swimming pool waters in order to remove one or more nutrients necessary for algal growth and to accelerate the breakdown of objectionable...
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6123854 |
Flocculant compositions and water treatment method using the same
A flocculant composition includes an aqueous solution of a mixture of titanyl sulfate or titanium tetrachloride with a water-soluble, neutral alkali or alkaline earth metal salt at a titanium to...
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6110379 |
Method for treating water containing sulfate
An apparatus and method for removing contaminating metal ions and sulfate ions from acidic aqueous solution such as waste mine water which features passing the solution between pairs of electrodes,...
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6036935 |
Polyaluminum chlorides and polyaluminum chlorosulfates methods and compositions
The present invention is directed to a process for the production of polyaluminum chlorides and polyaluminum chlorosulfates useful as coagulants in water treatment. In addition, the invention is...
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5980749 |
Inclusion methods for purifying a solvent
Disclosed are methods for purifying solvents, by causing contaminants to be included within layers of dispersed layered materials, and then separating the restacked combined contaminant/layered...
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5958240 |
System for recycling waste water
An apparatus and method for treating waste water to generate clarified water for reuse in industrial processes which includes the steps of adding agents to the waste stream to generate floccules,...
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5938970 |
Polynucleate metal hydroxide compounds and method for their preparation
Polynucleate metal hydroxide anionic compounds and method for their production. The compounds have the formula: M a N b (OH) c X d Y e Z f .(H 2 O) g wherein M is a tri- or more valent...
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5916447 |
Method for water treatment
A method for treatment of water in which an aqueous solution containing a freshly made polymerised iron substance is produced, the produced polymerised iron substance is aged sufficiently long to...
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5904856 |
Process for the preparation of aluminum salt solutions
The present invention relates to a process for the preparation of solutions of aluminum salts, characterized in that an aluminate of an alkali metal and/or alkaline earth metal is dissolved in an...
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5800716 |
Processes for the treatment of acidic liquors and for the production of commercial products thereby
A process for the treatment of aqueous acidic liquors containing dissolved aluminum and/or iron compounds to produce an aluminum and/or iron sulfate water-treatment product is characterized by the...
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5792365 |
Purification process of polar liquid wastes containing suspended solvated particles and flocculating composition therefor
A process to purify polar liquid wastes consists in treating the wastes with a flocculating composition formed by a concentrated suspension of montmorillonite into a polar liquid, and preferably...
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5762807 |
Composition and process for treating water and gas streams containing heavy metals and other pollutants
A composition for treating water or flue gases that contains metal ions and possibly also organic and/or inorganic compounds is produced by reacting sulfur with an alkali- and/or alkaline earth...
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5728303 |
Electro-coalescence/magnetic separation (ECMS) system and components for removal of contaminants from water streams, including desalinization
An improved electro-coalescent/magnetic separation (ECMS) system for removing contaminants from water, including desalinization, comprises a device for exposing a stream of water to be treated to...
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5698107 |
Treatment for acid mine drainage
An apparatus and method for removing contaminating metal ions and sulfate ions from acidic aqueous solution such as waste mine water which features passing the solution between pairs of electrodes,...
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