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| Application No. | Application Title | Issue Date |
| 20110290740 | WASTE TREATMENT AND DISINFECTION UNIT A waste treatment system and method for treating a substantially liquid waste stream. The waste treatment system includes a conditioning stage for conditioning the waste stream for treatment. A metal ion generation stage is provided for generating metal ions for disinfe... | 12/01/2011 |
| 20110114570 | APPARATUS AND A METHOD FOR CONTINUOUS THERMAL HYDROLYSIS OF BIOLOGICAL MATERIAL A method for performing continuous thermal hydrolysis of sludge by feeding the sludge into a tube reactor subsequently elevating the temperature and pressure in the reactor. The sludge is cooled by introducing water into the sludge instead of cooling the sludge with a h... | 05/19/2011 |
| 20110049061 | METHOD FOR TREATING ODOR IN WASTEWATER Disclosed herein is method of treating wastewater to remove odorous sulfide compounds. The method includes measuring a concentration of a dissolved sulfide compound contacting the wastewater with an enhanced hydrogen peroxide solution to produce a molecular ratio of not... | 03/03/2011 |
| 20100186469 | METHOD AND DEVICE FOR TREATMENT OF LIQUID MATERIALS BASED ON ORGANIC WASTE PRODUCTS The present invention relates to a method and arrangement for the treatment of liquid material based on organic waste products, in particular sludge from sewage disposal plants and the like, wherein the sludge material is added and mixed with chemicals, in particular su... | 07/29/2010 |
| 20100096340 | CONTROL OF DEVELOPMENT OF BIOFILMS IN INDUSTRIAL PROCESS WATER There is provided a method of inhibiting the development of a biofilm adjacent a surface, the method comprising intermittently applying a biofilm inhibiting substance to a collection of microorganisms having biofilm developing potential. Other embodiments are also descr... | 04/22/2010 |
| 20100072144 | METHOD OF TREATING BALLAST WATER OF SHIP A method of treating a ballast water for sterilizing bacteria, microorganisms or organisms in the ballast water in a hold or ballast tank of a ship, has the steps of: sterilizing the bacteria, microorganisms or organisms by adjusting a residual chlorine concentration in... | 03/25/2010 |
| 20090095692 | RETRIEVABLE DIFFUSER MODULE WITH INTERNAL BALLAST/BUOYANCY CHAMBER A diffuser module and system for diffusing gas into liquid such as in aeration/mixing of wastewater. Each module has a header pipe and diffusers which receive gas from the header pipe. Each pipe is equipped with a smaller internal pipe arranged concentrically to provide... | 04/16/2009 |
| 20090050575 | Control of development of biofilms in industrial process water There is provided a method of inhibiting the development of a biofilm adjacent a surface, the method comprising intermittently applying a biofilm inhibiting substance to a collection of microorganisms having biofilm developing potential. Other embodiments are also descr... | 02/26/2009 |
| 20080308505 | System and Process for Removal of Phosphorous and Ammonia from Aqueous Streams We disclose a process for the removal of phosphorous and ammonia from an aqueous stream by contacting the aqueous stream with magnesium and base in a first zone having a first pH, to form an (n−1)th mixed stream and a first portion of struvite; separating the (n−1)t... | 12/18/2008 |
| 20080290039 | Control system An apparatus and method for controlling a water characteristic of a body of water by controlling the cyclic release of a water characteristic material into the body of water with or without the system being responsive to a level of the water characteristic in the body o... | 11/27/2008 |
| 20080257001 | Treatment of Sewage Sludges The present invention provides a method of reducing the pathogen content of sewage sludge comprising (a) adding to the sludge an effective amount of a phosphorous-containing compound and (b) keeping the phosphorous-containing compound in contact with the sludge for a su... | 10/23/2008 |
| 20080197085 | REDUCTION OF HYDROGEN SULFIDE IN WATER TREATMENT SYSTEMS OR OTHER SYSTEMS THAT COLLECT AND TRANSMIT BI-PHASIC FLUIDS A method for reducing noxious sulfur species including hydrogen sulfide in sewage collection systems including force mains is disclosed, where the method involves administering a an effective amount of a composition including a water soluble sulfur scavenger and an oil ... | 08/21/2008 |
| 20080164219 | HYDRAULIC INJECTION OF BIOCIDE INTO TANKS A method of servicing a wellbore comprising transporting at least two portable tanks to a well site to be serviced, and hydraulically injecting biocide into a first of the two tanks, wherein a second of the two tanks serves as a fluid source for conveying the biocide in... | 07/10/2008 |
| 20080128363 | METHOD AND APPARATUS FOR PURIFYING WATER The invention relates to a method for purifying water by dissolving one or more soluble metal salts in the water to provide corresponding metal ions, by dissolving hypohalite into the water, and by regulating the residence time, and thus hypohalite concentration in the ... | 06/05/2008 |
| 20080116144 | Methods and compositions for reducing chlorine demand, decreasing disinfection by-products and controlling deposits in drinking water distribution systems Methods and compositions for improving water quality by reducing chlorine demand, decreasing disinfection by-products and controlling deposits in drinking water distribution systems include adding low concentrations of supplemental oxidants, for example, RE-Ox® to the ... | 05/22/2008 |
| 20080116148 | Treatment of Metal Melts A method of maintaining the life of a porous filter when refining a metal melt by controlling the formation of a filter cake thereon, the method comprising passing liquid metal through a porous filter and adding a filter cake formation agent to the metal; contacting the... | 05/22/2008 |
| 20080047903 | CONTROL SYSTEM AND PROCESS FOR WASTEWATER TREATMENT A system and process is provided for optimizing chemical additions, mixing energy, mixing time, and other variables while treating a contaminated liquid stream. Samples from the contaminated liquid stream are tested to determine the optimal parameter for each variable, ... | 02/28/2008 |
| 20070251888 | Method and Apparatus for Feeding Chemical Into a Liquid Flow A method of feeding chemical to a liquid flowing in an open space, the method including: feeding the chemical to the liquid by at least one special mixing device; introducing a feed liquid to the at least one special mixing device separately from the chemical; contactin... | 11/01/2007 |
| 20050115901 | Preparation of waste water containing sodium chloride for use in chlor-alkali electrolysis The present invention relates to a process for the treatment of waste waters containing common salt, characterised in that, by a specific sequence of acidification, extraction, alkalisation and stripping steps, an aqueous common salt solution is obtained, which can be u... | 06/02/2005 |
| 20050092693 | Method for stabilizing chlorine in aqueous solution An isocyanurate stabilizer to the chlorinated pool water includes a tablet of chemically pure isocyanuric acid soluble in the pool water before a chlorinated tablets are added into the pool water. ... | 05/05/2005 |
