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US20150210566 SELF-CONTAINED IRRIGATION POLISHING SYSTEM  
A self-contained water polishing system includes at least a first containment basin that has an inlet for inflow of water from a collection source and contains calcium carbonate for treatment of...
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...
US20110042319 METHOD FOR PROCESSING SLUDGE  
The invention relates to a method for processing sludge, comprising the addition of a lime-based basic agent to a sludge having a first pH value in order to raise the pH to a second value higher...
US20110024360 COMPOSITIONS AND METHODS FOR WASTEWATER TREATMENT  
Methods and compositions utilizing aluminum, magnesium, and calcium-based additives for the treatment and neutralization of wastewater are described for removing contaminants from wastewater,...
US20120152854 Method for Processing Sludge  
This invention relates to a method for processing sludge involving the addition of a lime-based basic agent to a sludge having a first pH value in order to raise the pH to a second value higher...
US20110271875 Process for Recovery of Values from a Fermentation Mass Obtained in Producing Ethanol and Products Thereof  
The present invention generally relates to processes for recovery of values from a fermentation mass obtained in producing ethanol. Further, the present invention relates to processes for the...
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...
US20130026102 REMEDIATION SYSTEM FOR TRANSITION METAL IONS AND METHOD FOR SAME  
In at least one embodiment, a method for remediating oxic water having transition metal ions comprises the steps of providing oxic water having transition metal ions. The water is introduced to a...
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...
US20110239531 METHOD FOR AGGREGATING AND SEPARATING ALGAE  
The object of the present invention is to provide a method for aggregating and separating algae dispersed in a liquid efficiently. According to the present invention, a method for aggregating and...
US20070039702 Purification of alkaline washing liquid  
A method for washing sulphate cellulose pulp in the washing department of a sulphate cellulose mill, in which method a first pulp flow (1) is conducted to a first washer (101), where a washing...
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...
US20140166583 PROCESS FOR TREATING ACID MINE DRAINAGE  
A stream of acid mine discharge is treated by mixing an alkaline aqueous solution of sodium borohydride to form a precipitate which is separated from the stream.
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...
US20130319951 Calcium and Aluminum Chlorides for Sulfate Removal from Water  
Sulfate anions and divalent metal ions in water are removed by treating sulfate-containing water, at a pH of 11-12.5, with aluminum chloride and calcium chloride, optionally together with lime, to...
US20150151991 NEUTRALIZATION METHOD  
A method for reducing usage amount of expensive high alkaline neutralizer, and applying efficient neutralization treatment, when applying a neutralization treatment to a barren solution to produce...
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...
US20120193296 Method for Treating Acid Mine Drainage  
A process for treating acid mine drainage containing heavy metals and soluble contaminants is provided. In one embodiment, at least a metal cation is added to the acid mine drainage at a...
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...
US20140263081 INDUSTRIAL WATER PURIFICATION AND DESALINATION  
This invention relates to the field of water purification and desalination. In particular, embodiments of the invention relate to systems and methods of removing essentially all of a broad...
US20140110345 Lignin Dewatering Process  
A lignin plastics solids mass containing lignin solids and liquids with up to 85% liquids can be partially dewatered by heating the lignin plastics solids mass to above a critical temperature at...
US20110127223 PROCESS FOR TREATING POND WATER  
A process for the treatment of phosphoric acid plant pond water where an increased recovery of phosphorus values from the input pond water is achieved through the dilution of the initial pond...
US20140251906 ADDITION OF ALUMINUM REAGENTS TO SULFATE-CONTAINING WASTE STREAM REDUCE SULFATE CONCENTRATION  
The invention provides methods and compositions for detection and removal of sulfate from a liquid. The method provides much faster removal of sulfate than the prior art does and does so while...
US20090204419 Purification of Oil Field Production Water for Beneficial Use  
A method for generating new water with attached water rights comprising identifying a source of production water and treating the water in appropriate ways to provide water appropriate for...
US20140170047 METHOD FOR REMOVING IMPURITIES FROM FLUE GAS CONDENSATE  
The present invention relates to a method for treating flue gas and/or condensates thereof suitable for removal of sulphur-containing compounds. The invention also relates to the purified flue gas...
US20100072142 METHOD AND SYSTEM FOR SEEDING WITH MATURE FLOC TO ACCELERATE AGGREGATION IN A WATER TREATMENT PROCESS  
A system and method that uses mature floc as seed particles to promote aggregation in a water treatment process is provided. The seed particles do not need to be recovered as they separate out...
US20150060368 TREATMENT OF GAS WELL PRODUCTION WASTEWATERS  
A method of treating a wastewater is provided and can be used, for example, to treat a gas well production wastewater to form a wastewater brine. The method can involve crystallizing sodium...
US20130048562 TREATMENT OF GAS WELL PRODUCTION WASTEWATERS  
A method of treating a wastewater is provided and can be used, for example, to treat a gas well production wastewater to form a wastewater brine. The method can involve crystallizing sodium...
US20110163043 METHOD FOR TREATING FLOOR POLISH STRIPPING WASTEWATER AND WASHING WASTEWATER  
To provide a method for treating floor polish stripping wastewater and washing wastewater that is suitable for treating stripping wastewater produced in stripping with a strongly alkaline...
US20120125861 METHOD AND SYSTEM FOR REDUCTION OF SCALING IN PURIFICATION OF AQUEOUS SOLUTIONS  
A method for removing hydrocarbons and scale forming compounds from tap water, contaminated aqueous solutions, seawater, and saline brines, such as produce water, comprising the addition of...
US20110042320 TREATMENT OF CONTAMINATED WATER FROM GAS WELLS  
Systems and methods for treating contaminated water from gas wells by adding an inorganic coagulant and a low molecular weight polymer to the contaminated water to increase the size of solid...
US20110272362 Flotation and Separation of Flocculated Oils and Solids from Waste Waters  
Oily and/or solids-containing water is clarified by chemical treatment to form flocculated and agglomerated solid phases and a clear water phase. In the clarification process, microbubbles of air...
US20080190860 Stimulant Sensitive Flocculation and Consolidation  
The present invention relates to methods for the separation of materials from heterogeneous fluids and provides a means of effecting stimulant-sensitive flocculation and consolidation of solid...
US20100319923 MOBILE SYSTEMS AND METHODS OF SUFFICIENTLY TREATING WATER SO THAT THE TREATED WATER MAY BE UTILIZED IN WELL-TREATMENT OPERATIONS  
A system is provided that includes: (a) a mobile platform; (b) an input pump operatively connected to be capable of pumping a treatment stream through the system; (c) a centrifugal separator...
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...
US20060231498 Reactive filtration  
In one embodiment, a method for removing a contaminant from alkaline water includes adding ferric iron to alkaline water until reaching a pH less than 7 to form a neutralized solution and exposing...
US20120211433 CONTINUOUS FLOW REACTOR AND METHOD OF USING THE SAME FOR TREATING NITROGEN AND PHOSPHORUS-CONTAINING WASTEWATER  
A continuous flow reactor, including a cylindrical coagulation crystallizer, a funnel type protective baffle for static settling, and a conical static settler. A lower end surface of the...
US20100155337 PROCESS OF TREATING SEWAGE IN TERNARY COMBINATION FLOODING  
The present invention discloses a process of treating ternary combination flooding sewage, in particular, comprising treating the ternary combination flooding sewage after oil-water separation...
US20140291252 METHOD FOR PURIFYING WASTE WATER FROM A STAINLESS STEEL SLAG TREATMENT PROCESS  
The present invention relates to a method for purifying highly alkaline waste water from a stainless steel slag treatment process. This waste water contains between 0.5 and 5 mg/l of trivalent...
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...
US20110215052 Process of recovery of exhausted ionic liquids used in the extractive desulfurization of naphthas  
A process for recovering ionic liquids comprising the steps of: providing a first ionic liquid mixture, the first ionic liquid having a halogen metallate anion, the mixture containing an organic...
US20070284312 DISPOSAL SYSTEM FOR WASTE GENERATED DURING PLASTERING OF SWIMMING POOL  
A portable waste disposal system for cementuous slurry comprises a collapsible wire cage, a waterproof containment bag inside the wire cage and a filtration bag inside the waterproof containment...
US20120193295 METHOD FOR TREATING EFFLUENT WATERS  
A process for treating waste water, effluent streams, e.g., acid mine drainage, containing heavy metals and soluble contaminants is provided. In one embodiment, at least a metal cation is added to...
US20150076078 CHEMICAL PROCESS TO REMOVE SUSPENDED SOLIDS  
This disclosure describes providing techniques to remove suspended solids from a process stream. This disclosure describes a method for adding a chemical, a cationic flocculant to the process...
US20120205317 METHOD OF TREATMENT OF COKE WASTEWATER  
A method for treatment of coke wastewater, including (1) introducing wastewater into a regulating reservoir into which an acid liquor is added until the pH value of the wastewater ranges between...
US20140053872 METHODS AND COMPOSITIONS FOR THE TREATMENT AND RECOVERY OF PURGE SOLVENT  
The present disclosure relates to purge fluids, methods of using the purge fluids, and systems to be used for recycling the purge fluids. In some aspects, the purge fluid may be used to clean or...
US20070205159 METHOD FOR TREATING ACIDIC WATERS USING RECYCLED ACIDIC AND BASIC SLUDGES  
A method for removing metals from metal-containing acidic mine wastewater uses a basic sludge produced by the method for treating the wastewater. The wastewater is mixed with a lime slurry and...
US20110031130 Method for purifying aqueous compositions  
Method for purifying an aqueous composition by removing silicon therefrom, according to which a compound comprising aluminum is added to the aqueous composition in order to obtain a molar aluminum...
US20120006755 PROCESS FOR TREATMENT OF WATER CONTAINING AZOLE-TYPE ANTICORROSIVE FOR COPPER  
Provided is a process for efficiently removing an azole-type anticorrosive for copper from water containing the azole-type anticorrosive for copper, such as wastewater discharged from a CMP step...
Matches 1 - 50 out of 82 1 2 >