| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 588318000 | Detoxification by using acid or alkaline reagents (EPO/JPO) | 30 |
| 20080200746 | NATURAL ANALOG SYSTEM FOR REDUCING PERMEABILITY OF GROUND - A method of chemically and physically treating unconsolidated soils, over burden, fill and certain waste materials (the “ground”), or partly consolidated materials that can be excavated and broken up by normal earth moving and soil mixing equipment. This treatment results in the reduction of permeability in the ground, and as a result permits the prevention or control of contaminant migration from a site containing ground wastes of various types, thereby isolating these wastes. | 08-21-2008 |
| 20080207980 | Method for optimal stabilization of incinerator ash - This invention provides a method for optimal low cost stabilization of incinerator ash subject to acid and water leaching tests or leach conditions by addition of pH increasing agents, such that leaching of lead and cadmium is inhibited to desired levels. The resultant ash after stabilization is suitable for disposal as RCRA non-hazardous waste. | 08-28-2008 |
| 20080221379 | Composition And Method To Control Acid Rock Drainage - A composition to control acid rock drainage is provided. The composition includes a slurry made from water and solids, the solids containing powders of limestone, clay and magnesium oxide or magnesium hydroxide. In some instances, the slurry is thixotropic and contains between 10 to 75 weight percent of solid powders. The solid powders can include between 40 to 75 weight percent limestone, 10 to 35 weight percent clay and 10 to 30 weight percent magnesium oxide or a proportional concentration of magnesium hydroxide. | 09-11-2008 |
| 20080262285 | Method for removing phosphate from aqueous solutions - A method for removing phosphate ion from an aqueous solution containing phosphate ion using a resin loaded with a hydrous oxide of an amphoteric metal ion. The resin loaded with a hydrous oxide of an amphoteric metal ion is produced by combining a resin with at least two bed volumes of an aqueous solution containing a salt of the amphoteric metal ion, and having a metal ion concentration of at least 5%, and then treating with an aqueous alkali metal hydroxide solution. | 10-23-2008 |
| 20090105517 | METHOD FOR CHEMICALLY REDUCING WASTE MATERIAL - In accordance with the present invention, a system, method and apparatus is provided for chemically reducing waste. The apparatus includes a substantially alkaline-resistant vessel having a temperature sensor positioned in thermal communication therewith, a heater in thermal communication with the vessel, a substantially alkaline-resistant magnetic stir rod adapted to be positioned within the vessel, and a magnetic stirrer adapted to produce a rotating magnetic field within the vessel capable of spinning a magnetic stir rod positioned therein. The apparatus further includes a water inlet valve operationally connected to the vessel and a water outlet valve operationally connected to the vessel. An electronic controller is connected in electric communication to the heater, to the magnetic stirrer, to the water inlet valve, to the water outlet valve, and to the temperature sensor and is adapted to maintain the temperature of the substantially alkaline resistant vessel substantially at a predetermined value. | 04-23-2009 |
| 20090118565 | METHOD IN CONNECTION WITH STEEL PRODUCTION - The invention relates to a method in connection with steel production for handling of hydroxide sludge formed in the neutralization of spent metal-contaminated pickling agents from a pickling step for steel, preferably stainless steel and for using calcium fluoride in the hydroxide sludge to replace the natural fluorspar as a fluxing agent in connection with steel production. Accordingly, the addition of the reactive neutralization medium is monitored by the pH electrodes operated in continuous fashion, and the pH value is adjusted at the range between 9.0 and 9.5. | 05-07-2009 |
| 20090137858 | SYSTEM AND METHOD FOR TREATING INFECTIOUS WASTE MATTER - A system and method is provided for producing a safely disposable end product from waste matter containing undesirable materials, such as infectious, biohazardous, hazardous, or radioactive elements. The method comprises the steps of providing a highly alkaline solvent, immersing the waste matter containing the undesirable materials within the highly alkaline solvent, and heating the solvent. The waste matter containing the undesirable materials is allowed to remain within the solvent until digested, thereby forming a solution void of any infectious or biohazardous elements and/or containing a decreased concentration of radioisotope. | 05-28-2009 |
| 20090187060 | Method and Formulation for Neutralizing Toxic Chemicals and Materials - The present invention is directed to a formulation and associated method for neutralizing one or more toxic chemical and/or materials including toxic industrial chemicals and toxic industrial materials, such as irritants, heavy metals, radioactive metals, acids and acid irritants, pesticides, and various agricultural chemicals, (collectively referred to as toxic chemical, materials, or simply toxins) as well as decontaminating surfaces that have come into contact with these agents. As a result, the formulation of the present invention can be used for neutralizing a broad spectrum of toxic chemicals and materials. In one embodiment, the active ingredient comprises 2, 3, butanedione monoxime (also known as diacetyl monoxime (DAM)), and alkali salts thereof such as potassium 2,3-butanedione monoxime (KBDO). The formulation also typically includes a carrier in which the active ingredient is dispersed. In one embodiment, the carrier comprises polyethylene glycol (PEG); monomethoxypolyethylene glycol(mPEG); and combinations and derivatives thereof. | 07-23-2009 |
| 20100010283 | Method for degrading chemical warfare agents using Mn(VII) oxide with-and-without solid support - The invention provides a novel method of detoxifying highly toxic chemicals, and treating surfaces contaminated, or potentially contaminated, with toxic chemical agents such as chemical warfare agents and/or industrial toxins. The methods utilizes a novel sorbent compound which comprises Mn(VII) mineral which can be either solid supported or non-solid supported. The Mn(VII) mineral can be provided in a number of different forms including creams, lotions, powders, liquids, slurries and aerosols. | 01-14-2010 |
| 20100113859 | METHOD OF ASBESTOS DETOXIFICATION AND AQUEOUS SOLUTION FOR ASBESTOS DETOXIFICATION - A method of asbestos detoxification in which an asbestos-containing waste material in any form is made harmless while preventing asbestos particles or dust from flying or scattering. The asbestos content can be easily reduced in a short time to 0.1 wt. % or lower, which is prescribed by the Ministry of Health, Labor, and Welfare. The waste can be perfectly made harmless. Also provided is an aqueous solution for asbestos detoxification which is for use in the method. The method of asbestos detoxification comprises: bringing an asbestos-containing waste material into contact with an aqueous treating solution containing at least one fluoride ion source selected from the group consisting of the fluorides of alkali metals, alkaline earth metals, and ammonia and hydrofluoric acid and further containing at least one mineral acid selected from the group consisting of hydrochloric acid, sulfuric acid, and nitric acid so that the aqueous treating solution has a pH of 1 or lower; and allowing the resultant mixture to stand or stirring it while adding the mineral acid so as to keep the pH of the aqueous treating solution at 1 or lower. Thus, the asbestos in the asbestos-containing waste material is made harmless. | 05-06-2010 |
| 20100130806 | Method of treating asbestos-containing waste material - A method of asbestos treatment in which an asbestos-containing waste material of arbitrary configuration can be detoxified completely and safely. The method of asbestos treatment comprises impregnating an asbestos-containing waste material with an acid so as to cause at least the asbestos at the surface of the waste material to be nonasbestous and further treating the treatment product in a cement production plant. In particular, the treatment in a cement production plant is a fusion treatment by means of a cement kiln. Therefore, not only can the asbestos-containing waste material be detoxified completely and safely but also a cement reusing the waste material can be produced. | 05-27-2010 |
| 20110004043 | SET OF COLLECTABLE, SUPERIMPOSABLE CARDS - A process for decontaminating a medium polluted with metals and hydrophobic organic compounds (HOC) includes providing an acidic slurry of water, acid, chloride salt, surfactant, and the polluted medium. Flotation is preformed on the acidic slurry to form a HOC-rich froth and an HOC-depleted slurry and the froth is recovered. The slurry is separated to obtain a treated solid and a liquid effluent rich in metallic ions. Preferably, the process also includes recuperating the metals by chemical precipitation and/or electrodeposition to produce a treated solution. Also provided are a decontaminant having an acid, a chloride salt, and a surfactant as well as a chemical kit for decontaminating the polluted medium including the decontaminant in which the acid, chloride salt and surfactant can be mixed with polluted medium in the presence of water before removing at least a portion of the metals and HOC from the polluted medium. | 01-06-2011 |
| 20110046431 | APPARATUS, COMPOSITION, AND METHOD TO REMEDIATE AN ACID AND/OR LIQUID SPILL - A method and apparatus to remediate a release of caustic materials or acidic materials by supplying a poly(acrylic acid-co-acrylamide) and disposing that poly(acrylic acid-co-acrylamide) onto a liquid spill comprising caustic materials or acidic materials. | 02-24-2011 |
| 20120088951 | PHARMACEUTICAL DRUG DISPOSAL KIT - A pharmaceutical drug disposal kit includes a container for receiving pharmaceutical drugs. Water is added to the container to create an aqueous solution with the pharmaceutical drugs, and a constituent in the container makes the solution a basic aqueous solution. A visual and/or taste deterrent is disposed in the container, and an adsorbent or absorbent is also disposed in the container to provide at least partial solidification of the solution. A binding agent is also disposed in the container to bind the ingredients of the pharmaceutical drug, the deterrent, and the adsorbent/absorbent, thereby changing the physical state of the pharmaceutical drugs into a substance that is undesirable to consume, and which enables safe disposal of the pharmaceutical drugs. | 04-12-2012 |
| 20120289756 | ASBESTOS-TREATING AGENT AND METHOD FOR TREATING ASBESTOS - To provide a treatment agent for asbestos, which has a less influence on human body, the construction and the surrounding environment and can render the asbestos harmless evenly up to the inside of the bulky covering materials, which cover the wall, or the slate materials, and a treatment method of the asbestos using the same. | 11-15-2012 |
| 20120296147 | Treatment Apparatus and Methods - Various methods and apparatus are disclosed that relate to one or more aspects of a treatment system that circum-neutralizes the pH of an aqueous stream, removes one or more heavy metals from the aqueous stream, circum-neutralizes the pH of a CCR supply, and/or removes one or more heavy metals from the CCR supply. | 11-22-2012 |
| 20120323061 | SYSTEM AND METHOD FOR TREATMENT AND DISPOSAL OF PHARMACEUTICAL WASTE - An exemplary system for treatment and disposal of pharmaceutical waste comprises a sealable pail, a stirring device, a sealable bag, a container, an acidic substance, and a denaturant. The sealable pail receives the pharmaceutical waste and the acidic substance. The acidic substance dissolves the pharmaceutical waste, and the stirring device stirs the acidic substance to ensure that the pharmaceutical waste is completely dissolved. The denaturant is added to the dissolved pharmaceutical waste and renders the dissolved pharmaceutical waste safe for transport. The treated pharmaceutical waste is sealed within the sealable pail, and the sealable bag receives the sealed pail and is sealed. The sealed bag is then placed in the container for transport to a disposal facility. | 12-20-2012 |
| 20130053615 | METHODS AND APPARATUSES FOR DIGESTING TISSUE - Embodiments of this disclosure relate to tissue digestion and, more particularly, to methods and apparatuses for varying the number, size, and/or location of one or more tissue compartments within a digestive fluid vessel. Some examples include partitions that may be selectively positioned within a vessel (and may be selectively removable from the vessel) to create one or more tissue compartments. The partitions may be positioned, repositioned and rearranged within the vessel to form one or more tissue compartments. The partitions may be solid or include apertures, and may be oriented in horizontally and/or vertically. Alternate embodiments include one or more selectively closeable apertures that permit digestive fluid to circulate along alternate pathways, which can permit tissue digestion with reduced digestive fluid levels. Still further embodiments include baskets that are selectively positionable within the tissue digester. The baskets may also include one or more selectively positionable and/or repositionable partitions. | 02-28-2013 |
| 20130123563 | SELF-DECONTAMINATING METAL ORGANIC FRAMEWORKS - A self-decontaminating metal organic framework including an acid linked to a metal producing a metal organic framework configured for the sorption of chemical warfare agents and/or toxic industrial chemicals, the metal organic framework including reactive sites for the degradation of the agents and chemicals. | 05-16-2013 |
| 20130178687 | TISSUE DIGESTION METHOD AND APPARATUS - Tissue digestion methods and apparatuses that provide easy, safe and inexpensive disposal of biological tissue, for example animal carcasses and human cadavers, are disclosed. Embodiments include tissue digesters with elongated cylindrical vessels for holding digestive fluid and baskets for holding tissue within said vessel. Embodiments include baskets with perforations to allow circulation of digestive fluid around and about the tissue. In one form the basket holding the tissue is horizontally loaded into a horizontally disposed vessel. The vessel is then tilted to a more vertical orientation. Gravity helps to collect the tissue fragments in a sloped collection region of the basket, which is located near a mixer to allow continual agitation of the tissue fragments as they are digested. The tissue digester can operate efficiently at lower temperature and pressures, is mechanically less complicated, consumes less power and is less expensive to manufacture than conventional tissue digesting systems. At higher temperatures employed in a pressure vessel provided by this invention, the tilting mechanism also dramatically improves the efficiency of the process and the completeness of the tissue digestion. | 07-11-2013 |
| 20130211175 | HYDROLYSIS OF USED IONIC LIQUID CATALYST FOR DISPOSAL - We provide a process and apparatus for preparing a used catalyst for disposal, comprising:
| 08-15-2013 |
| 20130317274 | REMOVAL OF ELEMENTS FROM COAL FLY ASH - A method for removing elements, including heavy metals, from fly ash and from fly ash resulting from removal of SO | 11-28-2013 |
| 20130338420 | Surfactant Composition and Method for Decontamination - Cleaning compositions, methods for cleaning exterior surfaces of a vehicle, and cleaning compositions for cleaning exterior surfaces of a vehicle are disclosed. The cleaning compositions include a C | 12-19-2013 |
| 20140206922 | Methods for Dissolution and Instant Neutralization of Solid Nitrocellulose Propellants and Plasticized Military Munitions - Nitrocellulose propellants and plasticized military munitions, equipment, or contaminated soil are placed in a suitable container. A first option consists of adding a strong base to plasticized munitions in a container or militarization/demilitarization equipment or soil containing plasticized munitions or nitrocellulose propellant; adding an organic solvent; and then adding water to mixture. Alternatively, a second option consists of adding organic co-solvent to plasticized munitions in a container or soil containing plasticized munitions or solid nitrocellulose propellant. A strong base is added to mixture and allowed to react. When the reaction stops or is completed, a sulfur based bulk reductant is added to degrade all nitro and amino compounds. The organic solvent is evaporated and recovered for reuse and water is added to the container to make up for the evaporated organic solvent. If pH is higher than 8.5, a suitable acid is added to drop the pH to near neutral. | 07-24-2014 |
| 20140243575 | METHOD OF REMOVING ASBESTOS FROM ASBESTOS-CONTAINING MATERIALS BY 99% THROUGH LOW TEMPERATURE HEAT TREATMENT - Disclosed is a method of removing asbestos from an asbestos-containing material by 99% through low temperature heat treatment. The method includes mixing an asbestos-containing material with an oxalic acid at a weight ratio in a range of 1:0.002 to 1:1 and performing heat treatment with respect to a mixture at a temperature of 90° C. to 110° C. to remove asbestos from the asbestos-containing material by 99% or more. | 08-28-2014 |
| 20140249346 | PROCESS FOR STABILIZING WASTE - The process for stabilizing wastes generally comprises blending spent or virgin fullers earth with a hazardous or non-hazardous sludge, soil or sediment to form a matrix. Next, the matrix is blended with a reagent capable of growing a calcium silicate hydrate or Ettringite mineral. In this manner a more stable, less leachable product is formed. | 09-04-2014 |
| 20140378735 | METHOD OF DETOXIFYING ASBESTOS CONTAINED IN WASTE SLATE AND DETOXIFIED ASBESTOS OBTAINED THROUGH THE SAME - Disclosed is a method of detoxifying asbestos of waste slate. The method includes concentrating the asbestos by introducing hydrochloric acid aqueous solution into waste slate powder to dissolve and remove a limestone component contained in the waste slate; and mixing the concentrated asbestos with oxalic acid and performing a low-temperature heat treatment. The waste slate is crushed and pulverized and powder of the crushed and pulverized waste slate is formed in a size in a range of 100 meshes to 300 meshes. The detoxified asbestos includes re-crystallized magnesium oxalate having a rhombohedral or amorphous shape. | 12-25-2014 |
| 20150080630 | Systems and Methods for Recycling Volatile Battery Sources - The invention is directed to systems and methods for the recycling of lithium ion batteries or the like. The system methods include comminution and destruction of used batteries, controlling the explosive reaction of the battery components during processing, and processing the materials into a suitable form for sampling and recycling. | 03-19-2015 |
| 20150148583 | METHOD OF DETOXIFYING ASBESTOS BY USING ROOM-TEMPERATURE RECRYSTALLIZATION SCHEME - Disclosed is a method of detoxifying asbestos by using a room-temperature recrystallization scheme. The method includes heat-treating a rock or slate containing asbestos; and putting the heat-treated rock or slate in an aqueous solution, to which organic acid is added, to allow the heat-treated rock or slate to react with the aqueous solution having the organic acid. | 05-28-2015 |
| 20150306643 | CADAVER DISPOSAL SYSTEMS AND TECHNIQUES - Apparatus and a method for decomposing a body of a deceased person, as an alternative to traditional cremation. The apparatus includes a primary vessel where the body is treated with a highly basic solvent to render the body into skeletal remains and liquid remains. A clamp is applied to the skull during processing for solvent access to the skull. A secondary vessel is used to receive the liquid remains from the primary vessel and further treat them. During this further treatment, the skeletal remains left in the primary vessel after the liquefied portion has been transferred to the secondary vessel, can be treated to be decolorized and deodorized, and then returned to the decedent's next of kin as ash-like material. | 10-29-2015 |
