Matches 1 - 50 out of 99 1 2 >


Match Document Document Title
US20110147316 DEOILING OF SAGD PRODUCE WATER  
Methods of deoiling oily water such as SAGD and frac produce water. The oily water is treated with a natural coagulant selected from tannins and chitosan. A cationic and/or anionic flocculant may...
US20140124453 CHEMICAL CO-PRECIPITATION PROCESS FOR RECOVERY OF FLOW-BACK WATER, PRODUCED WATER AND WASTEWATER OF SIMILAR CHARACTERISTICS  
Methods and systems for treating contaminated flow-back water produced by hydraulic fracture are provided. The method involves precipitating metals from the flow-back water stream in a first...
US20100314263 STAND-ALONE INTEGRATED WATER TREATMENT SYSTEM FOR DISTRIBUTED WATER SUPPLY TO SMALL COMMUNITIES  
Provided is a standalone integrated water treatment system for a distributed water supply. A filter input receives water to be treated. A coagulation system is in operative connection with the...
US20130068698 MOBILE WATER FILTRATION UNIT  
A water filtration unit, comprising: a housing; a passive separator in the housing to receive a pressurized source of particulate-heavy water, to separate most of the particulate mass from the...
US20140245930 SOLIDIFYING SLUDGE  
Embodiments provided herein relate to removing liquid from soil or other moisture rich media. In some embodiments, a method for solidifying sludge is provided and involves providing a sludge,...
US20120138541 Systems, Compositions, and Methods For Dewatering Mine Tailings  
Systems, compositions, and methods for dewatering and/or increasing a mechanical strength of mine tailings. These systems, compositions, and methods may include combining mine tailings with...
US20110114568 System and Method for Treating Wastewater  
A wastewater treatment system includes a chemical treatment process tank for receiving and chemically treating wastewater. The wastewater treatment system also includes a blending system for...
US20120152853 SYSTEM AND METHOD FOR REDUCING EMISSIONS IN A HOG CONFINEMENT FACILITY  
A system and method of reducing ammonia emissions. The system and method include a facility having a waste storage compartment below a floor comprised of slats with openings therebetween. A...
US20120285893 METHODS FOR REMOVING CONTAMINANTS FROM AQUEOUS SYSTEMS  
Methods for removing one or more contaminants from an aqueous stream comprising: adding one or more hydraulic binders and one or more promoters to the aqueous stream, and separating the...
US20130161264 Cost-Efficient Treatment Of Fluoride Waste  
A method and system for processing fluoride-containing wastewater includes treating the wastewater with brine (waste) created by the regeneration process implemented by in ion exchanging water...
US20110309017 METHODS AND DEVICES FOR ENHANCING CONTAMINANT REMOVAL BY RARE EARTHS  
Embodiments are provided for removing a variety of contaminants using both rare earth and non-rare earth-containing treatment elements.
US20110139724 Composition and Method for Reducing Chlorite in Water  
A composition and method for reducing a concentration of chlorite in water. The composition comprises a mixture of ferrous iron and a polyaluminum chloride. The mixture is contacted with a water...
US20140353252 Method of Supplying Engineered Waters for Drilling and Hydraulic Fracturing Operations for Wells and Recapturing Minerals and Other Components from Oil and Gas Production Waste Waters  
A method of supplying engineered water for drilling or hydraulic fracturing of wells, where the water comes from either fresh sources or is recycled from drilling or hydraulic fracturing...
US20120285895 SYSTEM AND METHOD FOR THE TREATMENT OF WASTEWATER  
A system and method for the treatment of wastewater. In one aspect, the invention can be a method of treating wastewater comprising: a) introducing wastewater having a first turbidity level into a...
US20120037569 SYSTEM AND METHOD FOR MINERAL HARDNESS MANAGEMENT  
A method of removing mineral hardness of water comprises selecting a mineral hardness solubility constant modifier capable of at least partially precipitating insoluble mineral hardness material...
US20140263079 Wastewater Treatment System and Method  
The present invention relates to systems and methods of wastewater treatment that rely primarily on the use of water treatment chemicals to clean wastewater without the need to use filtration...
US20150151990 TRANSPORTATION OF FLOCCULATED TAILINGS IN A PIPELINE  
A method for transporting flocculated tailings through a pipeline is provided comprising: adding an effective amount of a flocculant or a coagulant or a combination thereof to the mining tailings...
US20080190859 Method for Recovering Suspended Solids from Residual Effluents  
A process for the treatment of contaminated fluid and wastewater containing residuals from food processing and waste and residuals from animal feeding operations and effluent from the digestion of...
US20130334143 APPARATUS AND METHOD FOR PHOSPHOROUS REMOVAL FROM WASTE WATER USING DOLOMITE  
The present disclosure provides apparatus and method for phosphorous removal using dolomite by mixing an inorganic coagulant and dolomite together to improve the phosphorous removal efficiency and...
US20120279925 METHOD AND APPARATUS FOR TREATING NATURAL GAS AND OIL WELL DRILLING WASTE WATER  
A method of treating contaminated water effluent from a well drilling operation. The method comprises decomposing organic contaminants in the effluent by bubbling a gas containing ozone through...
US20150060367 COAGULATION PROCESSING METHOD, COAGULATION PROCESSING UNIT, AND WATER PROCESSING APPARATUS  
The present invention provides a coagulation processing method capable of adding a sufficiently-dissolved coagulant aqueous solution to being processed water and materializing high-efficiency...
US20150203385 DEWATERING OF THICK FINE TAILINGS WITH GAS INJECTION AND FLOCCULATION  
Techniques for injecting gas, such as compressed air, into thick fine tailings can promote water release or flocculant dosage reduction and thereby ameliorate dewatering operations of the thick...
US20120103915 METHOD AND DEVICE FOR PURIFICATION OF ARSENIC CONTAMINATED WATER  
A method of purifying arsenic contaminated water is disclosed. The method comprises of adding to the arsenic contaminated water predetermined quantities of iron and alkali; and passing the water...
US20120031850 Extraction of Sulfate from Water  
Sulfate anions and divalent metal ions, such as magnesium, strontium and barium, in water are removed by treating the water with polyaluminum chloride, usually together with lime, to form...
US20050127009 Process for reducing contaminants in process water and/or condensate  
This invention relates to a process for reducing contaminants in contaminated process water and/or condensate.
US20140311970 ROTATING DRUM MICRO-SCREEN FOR PRIMARY WASTEWATER TREATMENT  
A rotating screen has one or more panels arranged into a cylinder, or drum. The panels have openings in a micro-screening range, for example 100 microns or less. Wastewater to be screened is fed...
US20120285894 SYSTEM AND METHOD FOR THE TREATMENT OF WASTEWATER  
A system and method for the treatment of wastewater. In one aspect, the invention can be a method of treating wastewater comprising: a) flowing the wastewater along an axis; b) injecting a polymer...
US20110024359 METHOD FOR REMOVING CHLORIDE FROM AQUEOUS SOLUTION  
A method for removing chloride from an aqueous solution having an initial chloride ion (Cl−) weight concentration, comprising: adding a magnesium compound to the aqueous solution, magnesium ion...
US20140091042 WASHING METHOD OF GOETHITE-CONTAINING RED MUD  
A washing method of red mud that is produced when an alumina-containing ore having a goethite to hematite mass ratio of 60/40 (goethite/hematite) or more in the iron component thereof is...
US20150259232 TREATMENT OF PRODUCED WATER CONCENTRATE  
Water, for example produced water from a steam assisted gravity drainage (SAGD) or cyclic steam stimulation (CSS) heavy oil recovery operation, is treated, for example to recover water re-use in...
US20130062289 TREATMENT OF PHOSPHATE-CONTAINING WASTEWATER  
A method for treating, and recovering phosphate compounds from, phosphate-containing wastewater. The method includes the steps of: (a) removing fluoride from the wastewater; (b) recovering a...
US20110021670 INTEGRATED PROCESS FOR MANUFACTURING A BINDER  
A process for manufacturing a binder from a waste water effluent is disclosed. A method for recovering the protein used in the manufacture of the binder comprises adding an agglomerating agent to...
US20150083669 REDUCTION OR REMOVAL OF SULFATES FROM WATER  
Some waters have high sulfate contents, such as acid mine drainage (AMD), which makes them unsuitable for use in fracturing fluids and difficult to dispose. Such waters may be treated with a...
US20120189516 PRODUCTION OF HIGH PURITY LITHIUM COMPOUNDS DIRECTLY FROM LITHIUM CONTAINING BRINES  
A process for reducing the amount of magnesium in a lithium-containing brine by adding an aqueous solution of KCl to the brine to precipitate at least some of the magnesium as carnallite salt is...
US20150060369 Mobile Flowback and Produced Water Re-Use System and Method  
A mobile water re-use system can include a chemical treatment apparatus, at least one weir tank in fluid communication with the chemical treatment apparatus, and two or more settling tanks in...
US20150218020 METHOD AND APPARATUS FOR TREATING FRACTURE WATER FOR REMOVAL OF CONTAMINANTS AT A WELLHEAD  
A method and apparatus for removing the barium and strontium salts in water that flows back to the well head after hydrofracturing in gas well drilling. Trace levels of iron salts may also be...
US20080296228 Wastewater Treatment Method Comprising Decantation and Fine Screening Stages and Device for Carrying Out Said Method  
A method for removing helminth egg and other suspended solids from a wastewater stream includes directing the wastewater to a ballasted flocculation system and adding a coagulation agent,...
US20140102986 METHOD AND APPARATUS FOR PERFORMING SURFACE FILTRATION FOR WASTEWATER MERCURY REMOVAL  
A method and treatment unit for removing particulate mercury from aqueous streams such as wastewater streams from hydrocarbon processing is disclosed. Mercury solids are removed by means of a...
US20090095687 METHOD FOR SEPARATING OFF COLORING COMPONENTS FROM AQUEOUS PLANT EXTRACTS  
The invention relates to a method for separating off coloring components from aqueous plant extracts in which magnesium ions (Mg2+) are added to the plant extract, at least one alkaline component...
US20130233805 Method and Device for In-Line Injection of Flocculent Agent into a Fluid Flow of Mature Fine Tailings  
A method and device for in-line injecting of flocculent agent into a fluid flow of mature fine tailings (MFT). The method includes the steps of: a) providing a fluid flow of mature fine tailings...
US20080028811 Use of Partly Pre-Hydrated Lime for Separating a Mixture of Solid/Liquid Matters, Method for Treating Sludge and Purified Sludge Obtained by Said Method  
The present invention relates to a novel use of delayed reactivity partly prehydrated lime (abbreviated to: “DRQL”), which is composed of 40 to 98% by weight of CaO and of 60 to 2% by weight of...
US20080237139 METHOD AND SYSTEM OF WATER MANAGEMENT IN THE AGGREGATE INDUSTRY  
A method of managing water is provided, in which the water is discharged from an aggregate plant, and therefore contains a large number of fines. The water is first passed through a mesh screen to...
US20090026145 Process for dewatering a mineral slurry concentrate and increasing the production of a filter cake  
The present invention provides a process for dewatering a mineral slurry concentrate and increasing the production of the resulting filter cake consisting essentially of mixing an aqueous mineral...
US20130284678 METHODS AND DEVICES FOR MEASURING THE CONCENTRATION OF AN ADDITIVE  
An apparatus and methods for measuring the concentration of an additive are disclosed. The apparatus comprises a treatment stream (1) and a dosing stream (2). An additive is added to the dosing...
US20100025332 Titanium composition for water treatment and method  
A personally portable water purification compound prepared in unit dosage form such as tablets, packages and the like and having titanium dioxide (TiO2) in the form of fine particles, and adsorbed...
US20080314840 Method For Separating Suspended Solid Materials From Aqueous Systems With Colloidal Flocculants  
The invention relates to a method for separating suspended solid materials from aqueous systems, in which the latter is mixed with a flocculant made of polymer colloidal particles with cationic...
US20070187333 Dewatering process  
A process of dewatering aqueous suspension employing a flocculating system comprising treating the suspension with a flocculating amount of a first flocculant and a dewatering amount of a second...
US20070056914 Agricultural cleaning and treatment apparatus and method  
An agricultural cleaning apparatus includes a coarse filter assembly, a coarse filter assembly collection tank disposed to receive intermediate slurry from the coarse filter assembly, and a line...
US20120152852 PROCESSES FOR REMOVING HYDRAZINE FROM HYDROXYLAMINE SOLUTIONS  
The present invention relates to processes for reducing or eliminating the amount of hydrazine from a hydroxylamine-free base containing hydrazine by treating said hydroxylamine-free base with a...
US20150225269 METHOD FOR EFFLUENT TREATMENT IN SMELTING OF NICKEL OXIDE ORE  
The present invention aims at providing a method for effluent treatment, which enables the separation and recovery of a high-density and high-concentration aluminum sediment from waste water that...

Matches 1 - 50 out of 99 1 2 >