210results about "Waste water treatment from ceramic industries" patented technology

A method for reducing corrosion of a wash water system for glass forming lines, by using a corrosion meter, is provided. Also provided is a fiberglass manufacturing process that utilizes the method.

A water purification method comprising adding a purification agent to water having a contaminant concentration of 1 μg/L to 10 g/L, the purification agent containing an adsorbent having an average particle size of 100 nm to 500 μm, an iron-based flocculant, and an alkaline substance; causing the adsorbent to adsorb at least a part of the contaminants in water; settling the adsorbent with the adsorbed contaminants by the iron-based flocculant; and removing the sediment from water, wherein the purification agent is added in an amount of 0.01 g to 20 g per liter of water, can purify contaminated water conveniently and efficiently.

Amine-aldehyde resins are disclosed for removing a wide variety of solids and/or ionic species from the liquids in which they are suspended and/or dissolved. These resins are especially useful as froth flotation depressants in the separation of bitumen from sand and/or clay or in the beneficiation of clay (e.g., kaolin clay) from an impure clay-containing ore. The resins are also useful for treating aqueous liquid suspensions to remove solid particulates, as well as for removing metallic ions in the purification of water.

A novel process and apparatus are disclosed for cleaning wastewater containing metal ions in solution, hydrogen peroxide, and high solids, e.g., greater than about 50 mg/l particulate solids. A carbon adsorption column removes hydrogen peroxide in the wastewater feed containing high solids. A ion exchange unit removes the metal ions from solution. The process and apparatus remove metal ions such as copper from a high solids byproduct polishing slurry from the chemical mechanical polishing (CMP) of integrated circuit microchips to form an environmentally clean wastewater discharge.

A novel process and apparatus are disclosed for cleaning wastewater containing metal ions in solution, hydrogen peroxide, and high solids, e.g., greater than about 50 mg/l particulate solids. A carbon adsorption column removes hydrogen peroxide in the wastewater feed containing high solids. A chemical precipitation unit removes the metal ions from solution. The process and apparatus remove metal ions such as copper from a high solids byproduct polishing slurry from the chemical mechanical polishing (CMP) of integrated circuit microchips to form an environmentally clean wastewater discharge.

An electro-coagulation system to convert impurities and dissolved metal contaminants to suspended particles where upon associated dissolved gases help the suspended particles to rise to the surface and facilitate the contaminants to be removed. The system and process, known as Eco-Floc, are used for the treatment of various types of liquid streams by electrolysis for removal of undesirable substances from a treatment stream. The unique features of the electrolysis system permit a continuous cleaning of the electrode plates by moving, non-conductive scrapers located between electrodes in order that the movement of the scrapers can clean each electrode. The system also has full electrical controls to “tune in” power for the removal of specific impurities. The sacrificial anodes are easily replaced. The applications of Eco-Floc anticipate a plethora of applications and adapts well both to existing operations and new installations.

The present invention relates to a wastewater treatment apparatus, particularly to a glass production wastewater treatment apparatus, which comprises a press filter, a press filter control box, a wastewater pool, a sewage pump for conveying water in the wastewater pool to the press filter, a substrate and a filtrate collecting pool connected with the water outlet of the press filter, wherein the press filter and the press filter control box are connected on the substrate, the substrate is provided with a fixed structure, the fixed structure comprises a first suction disk, a second suction disk is arranged inside the first suction disk, and an adsorption groove is enclosed between the first suction disk and the second suction disk. The present invention provides the glass production wastewater treatment apparatus capable of conveniently installing the pressure machine control box, such that the problem that the pressure machine and the control box are inconveniently installed in the existing wastewater treatment apparatus is solved.

Provided are metal oxide ceramic materials and intermediate materials thereof (e.g., nanozirconia gels, nanozirconia green bodies, pre-sintered ceramic bodies, zirconia dental ceramic materials, and dental articles). The nanozirconia gels are formable gels. Also provided are methods of making and using the metal oxide materials and intermediate materials. The nanozirconia gels can be made using, for example, osmotic processing. The nanozirconia gels can be used to make nanozirconia green bodies, pre-sintered ceramic bodies, zirconia dental ceramic materials, and dental article. The nanozirconia green bodies, pre-sintered ceramic bodies, zirconia dental ceramic materials, and dental articles have desirable properties (e.g., optical properties and mechanical properties).

A truck mounted liquid concrete waste vacuum system with a storage tank adapted to be used in conjunction with a watertight concrete washout bin. The concrete washout bin is configured to roll off a transport vehicle for delivery to a construction site and to contain all solid and liquid concrete washout waste from construction activities. When the concrete washout waste is to be removed from the site, the liquid concrete waste vacuum system attached to the transport vehicle is first used to remove the liquid waste from the washout bin and store it in the tank. The bin containing the remaining solid waste is loaded on the transport vehicle and taken to the treatment facility where both the solid and liquid waste is safely off-loaded.

The present invention relates to the collection of alkalophilic/alkaline-tolerant microbes and use of said microbes in water glass wastewater treatment. The wastewater is treated directly with alkalophilic/alkaline-tolerant microbes cultured on granular activated carbon without any prior pH adjustment. Subsequently, water glass is separated from the biotreated water by lowering its pH. Alternatively, water glass is separated from biotreated water by distilling the water as water and water glass have different boiling points.

The invention discloses a treatment method of silicon-containing wastewater in a molecular sieve preparation process. The treatment method comprises the following steps: allowing the silicon-containing wastewater to be in contact with at least one acid or at least one alkali in order to make at least parts of elemental silicon in the silicon-containing wastewater form colloid in order to obtain a colloid-containing mixture, carrying out solid-liquid separation to obtain a silicon-containing solid phase and a first liquid phase, precipitating at least parts of metal elements in the first liquid phase, carrying out solid-liquid separation to obtain a solid and a second liquid phase, and optionally carrying out electrodialysis on at least parts of the second liquid phase to obtain an acid solution and/or an alkali solution, wherein the silicon-containing solid phase can be used in molecular sieve synthesis as a raw material, the second liquid phase can be used in a molecular sieve washing process as washing water, the acid solution can be used in a molecular sieve ion exchange process, and the alkali solution can be used in the molecular sieve synthesis as an alkali source. The method treatment method has the advantages of obtaining of high silicon recovery rate and high wastewater utilization rate, basic no generation or only generation of an extremely small amount of water discharge, and low solid material discharge amount.

The invention provides treating equipment for waste containing sludge. The objective of the invention is that the temperature of a fluid bed (1a) in a fluid bed gasification furnace (1) used for thermal decomposition of waste can be maintained in a proper range even when considerable waste containing high water content dehydrated sludge is treated. To realize the objective, treating equipment (100) for waste containing sludge is constructed beside cement manufacturing equipment (200). The treating equipment for waste comprises the fluid bed gasification furnace (1) which enables waste to be gasified for production of thermal decomposition gas, a gas delivery line (6) which delivers the produced thermal decomposition gas together with charcoal and ash to between a cement preheater (10) anda decomposing furnace (20), and heating devices like a waste gas air heater (41) which enables the temperature of fluidized air supplied to the gasification furnace (1) to rise by using waste heat ofthe cement manufacturing equipment (200).

The invention relates to a process and a system for treatment of ceramic processing wastewater, and solves the problems that in the prior art, the treatment of the ceramic processing wastewater adopts centralized treatment, and recovering use has high difficulty. The system comprises a first treatment district, a second treatment district, a sludge concentration treatment district and a recovery district. Through wastewater classification collection and quality-classifying treatment of the system, the treated water can be completely reused, and precipitated sludge produced can be comprehensively utilized, comprehensive utilization of sewage and sludge can be realized and zero emission can be realized.

A method for sequestrating carbon dioxide in the ocean of the present invention coverts carbon dioxide into a high concentration of bicarbonate ions by using a neutralization method using calcium oxide commonly contained in alkaline industrial waste, prepares elution water for stably containing bicarbonate ions even when making contact with the atmosphere through aeration, and discharges the elution water into an area of the ocean of a relatively shallow depth to sequestrate carbon dioxide. According to the present invention, the present invention is a carbon dioxide storage method which uses alkaline industrial waste to carry out carbon dioxide ocean sequestration at relatively low cost, and can sequestrate carbon dioxide for a long time while minimizing bad environmental influences such as ocean acidification and the like, and is thus environmentally friendly. Therefore, it is possible to actively respond to carbon dioxide emission restrictions and simultaneously achieve economical efficiency by securing certified emission reductions henceforth.

Glycine is an organic compound that can be used in the making of a synthetic base that obviates all the drawbacks of strong bases such as sodium hydroxide. The new compound is made by dissolving glycine in water and adding calcium hydroxide at a molar ration of about 1:1. Next, sodium percarbonate is dissolved in the solution to produce the new compound, which can be referred to as glycine hydroxide.

A water treatment and recycling system to provide grey water and crystal clear water to a stone processing system including crystal clear water stone fabrication equipment requiring crystal clear water and grey water stone fabrication equipment capable of using grey water. The system includes a waste water storage tank connected from the waste water discharge ports of the crystal clear water and grey water stone fabrication equipment, a grey water supply loop for pumping waste water from the waste water storage tank as grey water to the grey water stone fabrication equipment and a crystal clear water supply loop for pumping waste water through a high pressure filter to convert the waste water into the crystal clear water, and a crystal clear water supply pump for pumping crystal clear water to crystal clear water stone fabrication equipment. The high pressure filter includes a frame holding a filter stack that includes a manifold plate for connections to the waste water supply and crystal clear water output, a head plate, a plurality of filter plates, and a tail plate with a ram for applying axial pressure along the filter stack. The head plate and each filter plate include an axial input passage for receiving waste water and a plurality of discharge passages to the crystal clear water storage tank. Each of the filter plates further include at least one filter chamber for active filter elements including a filter media and a granular filter layer coated on the filter media.

Provided are metal oxide ceramic materials and intermediate materials thereof (e.g., nanozirconia gels, nanozirconia green bodies, pre-sintered ceramic bodies, zirconia dental ceramic materials, and dental articles). The nanozirconia gels are formable gels. Also provided are methods of making and using the metal oxide materials and intermediate materials. The nanozirconia gels can be made using, for example, osmotic processing. The nanozirconia gels can be used to make nanozirconia green bodies, pre-sintered ceramic bodies, zirconia dental ceramic materials, and dental article. The nanozirconia green bodies, pre-sintered ceramic bodies, zirconia dental ceramic materials, and dental articles have desirable properties (e.g., optical properties and mechanical properties).