Matches 1 - 17 out of 17


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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.
US20080169245 Solids separation technology  
A method for separating a low biosolids suspension stream into biosolids and water whereby the biosolids contain the majority of the original beneficial nutrients, and the water is substantially...
US20140008305 METHOD FOR REMOVING SULFATE ANIONS FROM AN AQUEOUS SOLUTION  
A method includes the steps, adding divalent calcium to an aqueous medium containing sulfate anions in solution and forming insoluble calcium sulfate in the aqueous medium; adding a water-soluble...
US20130056422 REDUCTION OF ORGANIC PHOSPHORUS ACIDS  
The present invention is to a process for reducing and removing organic phosphorus acid from waste stream. The process involves adding a multivalent metal salt to the waste stream and adjusting...
US20090127205 AMINO ACID, CARBOHYDRATE AND ACRYLAMIDE POLYMERS USEFUL AS FLOCCULANTS IN AGRICULTURAL AND INDUSTRIAL SETTINGS  
Modified polysaccharides, acrylamide copolymers, water-soluble amino acid copolymers, and combinations thereof are described for uses including flocculation of solids, particularly flocculation of...
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...
US20110042321 Methods For Flocculating Suspensions Using Biobased Renewable Flocculants  
Methods for aggregating suspended solid particles in an aqueous medium involving mixing the aqueous medium with an effective amount of a flocculant to aggregate the solid particles to form...
US20080003292 NANOPARTICLES AND METHOD FOR THE PRODUCTION THEREOF  
Nanoparticles are disclosed, consisting essentially of an aqueous gelatin gel, wherein the average diameter of the nanoparticles is at the most 350 nm, the polydispersity index of the...
US20140263058 METHODS OF FILTRATION AND CHEMICAL TREATMENT OF WASTE WATER  
A method and system for treating waste water from hydraulic fracturing is disclosed. The treatment includes removing the sand, suspending the inorganic metals and impurities, using flocculation to...
US20080296232 Wastewater clarifier and process  
An apparatus and method are disclosed to purify wastewater of many different compositions by controlling the pH and the flocking of the particulate matter in the water and by gently dewatering the...
US20070181506 Method for treating papermaking waste water, and methods of using silica sol in papermaking  
There is provided a method for treating papermaking waste water, which comprises having a silica-aluminum based inorganic polymer flocculant having an Si/Al molar ratio of 0.2 to 1.5 contained in...
US20140117273 USE OF A DUAL POLYMER SYSTEM FOR ENHANCED WATER RECOVERY AND IMPROVED SEPARATION OF SUSPENDED SOLIDS AND OTHER SUBSTANCES FROM AN AQUEOUS MEDIA  
A method uses anionic and cationic polymers added in, any order or simultaneously, to aqueous media for the removal of substances. The sequential addition of the two biopolymers, anionic xanthan,...
US20110000854 USE OF A DUAL POLYMER SYSTEM FOR ENHANCED WATER RECOVERY AND IMPROVED SEPARATION OF SUSPENDED SOLIDS AND OTHER SUBSTANCES FROM AN AQUEOUS MEDIA  
A method uses anionic and cationic polymers added in, any order or simultaneously, to aqueous media for the removal of substances. The sequential addition of the two biopolymers, anionic xanthan,...
US20090120881 TREATMENT BLENDS FOR REMOVING METALS FROM WASTEWATER, METHODS OF PRODUCING AND PROCESS OF USING THE SAME  
Treatment blends for removing metals from wastewater, method of producing and process of using the same. Treatment of industrial wastewater streams relate to the use of a pretreatment blend and a...
US20150044733 FLOCCULATION OF LIGNOCELLULOSIC HYDROLYZATES  
A method of separating a lignin-rich solid phase from a solution, comprising: pretreating a lignocellulosic biomass with a pretreatment fluid having to remove soluble components, colloidal...
US20170144906 SYSTEMS AND METHODS FOR TREATMENT OF WATER, SUCH AS OILFIELD WASTEWATER, VIA CHEMICAL COAGULATION  
Described herein are systems and methods for treating an aqueous input stream comprising at least one suspended and/or emulsified immiscible phase (e.g., oil, grease) and, in some cases, one or...

Matches 1 - 17 out of 17