us20120267315a1 - treatment of wastewater - google patents

US20120267315A1 - Treatment of wastewater - Google Patents

US20120267315A1 US13/450,815 US201213450815A US2012267315A1 US 20120267315 A1 US20120267315 A1 US 20120267315A1 US 201213450815 A US201213450815 A US 201213450815A US 2012267315 A1 US2012267315 A1 US 2012267315A1 Authority US United States Prior art keywords substrate water example system iron Prior art date 2011-04-20 Legal status (The legal status is an assumption and is not a legal conclusion.

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us7384573b2 - compositions for wastewater treatment

US7384573B2 - Compositions for wastewater treatment

Methods and compositions for wastewater treatment. The compositions comprise CaCO 3 , MgCO 3 , lanthanum chloride, or chitosan, and can be applied easily with conventional wastewater treatment processes and equipments. The methods and compositions of the present invention significantly improve treatment efficiency and reduce amount of required chemical additives.

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us20010037981a1 - wastewater treatment method

US20010037981A1 - Wastewater treatment method

A wastewater treatment equipment is provided with a reaction tank and a separate reaction unit installed in the reaction tank. In the separate reaction unit, a reaction different from a reaction in the reaction tank is carried out with returned sludge and a acid or alkali. Reactants are generated from the returned sludge in the separate reaction unit and then introduced from a bottom portion

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us20050112735a1 - production of biodiesel and other

US20050112735A1 - Production of biodiesel and other

A process for producing biodiesel has been invented by first extracting lipids from the sludges generated during primary and/or biological treatment of municipal, agricultural, and industrial wastewaters using primary, secondary, and tertiary treatments followed by the transesterification of the extracted lipids using transesterification conversion into alcohol-based esters.

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crowdsell your patent: technology patents for sale or license

Crowdsell Your Patent: Technology Patents for Sale or License

Acoustical Patents (46). Stroboscope Light for Subwoofers and Low Frequency Speakers; Active Wound Healing Film for Eardrum Perforations; Method for speech recognition in patients with neurological disorder or laryngectomy for e.g. vocal rehabilitation, involves acoustically reproducing output signal and/or converting signal into writte

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chemistry of rare earth elements in wastewater

Chemistry of Rare Earth Elements in Wastewater

remediation.5 In wastewater treatment several patents were published circa 1970 describing the use of rare earth salts for precipitation and removal of phosphate.6 All of this demonstrates rare earth based products are effective at removing P in a variety of water treatment applications.

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ecolotron, inc - wastewater treatment solutions

Ecolotron, INC - Wastewater Treatment Solutions

E – FLOC® Wastewater Solutions is an environmental consulting firm specializing in advanced wastewater recovery technology for hazardous waste minimization and the beneficial re-use of both hazardous and non-hazardous materials in reclamation and recycling efforts.

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basic principles of wastewater treatment

Basic Principles of Wastewater Treatment

The Biological Wastewater Treatment series is based on the book Biological Wastewater Treatment in Warm Climate Regions and on a highly acclaimed set of best selling textbooks. This international version is comprised by six textbooks giving a state-of-the-art presentation of the science and technology of biological wastewater treatment.

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us10472265b2 - systems and methods of - google patents

US10472265B2 - Systems and methods of - Google Patents

US10472265B2 US15/081,411 US201615081411A US10472265B2 US 10472265 B2 US10472265 B2 US 10472265B2 US 201615081411 A US201615081411 A US 201615081411A US 10472265 B2 US10472265 B2 US 10472265B2 Authority US United States Prior art keywords water oxidant method hydrogen sulfide solids Prior art date 2015-03-26 Legal status (The legal status is an assumption and is not a legal conclusion.

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ca2981034a1 - google patents

CA2981034A1 - Google Patents

CA2981034A1 CA2981034A CA2981034A CA2981034A1 CA 2981034 A1 CA2981034 A1 CA 2981034A1 CA 2981034 A CA2981034 A CA 2981034A CA 2981034 A CA2981034 A CA 2981034A CA 2981034 A1 CA2981034 A1 CA 2981034A1 Authority CA Canada Prior art keywords oxidant water portion method hydrogen sulfide Prior art date 2015-03-26 Legal status (The legal status is an assumption and is not a legal conclusion.

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us10472265b2 - systems and methods of - google patents

US10472265B2 - Systems and methods of - Google Patents

US10472265B2 US15/081,411 US201615081411A US10472265B2 US 10472265 B2 US10472265 B2 US 10472265B2 US 201615081411 A US201615081411 A US 201615081411A US 10472265 B2 US10472265 B2 US 10472265B2 Authority US United States Prior art keywords water oxidant method hydrogen sulfide solids Prior art date 2015-03-26 Legal status (The legal status is an assumption and is not a legal conclusion.

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ca2981034a1 - google patents

CA2981034A1 - Google Patents

CA2981034A1 CA2981034A CA2981034A CA2981034A1 CA 2981034 A1 CA2981034 A1 CA 2981034A1 CA 2981034 A CA2981034 A CA 2981034A CA 2981034 A CA2981034 A CA 2981034A CA 2981034 A1 CA2981034 A1 CA 2981034A1 Authority CA Canada Prior art keywords oxidant water portion method hydrogen sulfide Prior art date 2015-03-26 Legal status (The legal status is an assumption and is not a legal conclusion.

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us10472265b2 - systems and methods of - google patents

US10472265B2 - Systems and methods of - Google Patents

US10472265B2 US15/081,411 US201615081411A US10472265B2 US 10472265 B2 US10472265 B2 US 10472265B2 US 201615081411 A US201615081411 A US 201615081411A US 10472265 B2 US10472265 B2 US 10472265B2 Authority US United States Prior art keywords water oxidant method hydrogen sulfide solids Prior art date 2015-03-26 Legal status (The legal status is an assumption and is not a legal conclusion.

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ca2981034a1 - google patents

CA2981034A1 - Google Patents

CA2981034A1 CA2981034A CA2981034A CA2981034A1 CA 2981034 A1 CA2981034 A1 CA 2981034A1 CA 2981034 A CA2981034 A CA 2981034A CA 2981034 A CA2981034 A CA 2981034A CA 2981034 A1 CA2981034 A1 CA 2981034A1 Authority CA Canada Prior art keywords oxidant water portion method hydrogen sulfide Prior art date 2015-03-26 Legal status (The legal status is an assumption and is not a legal conclusion.

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