1
George R Whiteman: Methods for treatment of waste streams. Brinks Hofer Gilson & Lione, December 8, 1998: US05846425 (73 worldwide citation)

A method for treating wastewater is useful in treatment of biomass (sludge) resulting from wastewater treatment, particularly for biological sludges of aerobic, facultative and/or anaerobic origin. The invention relates fractionation of microorganisms and organic materials within the sludge by mecha ...


2
Simon P P Ottengraf: Method for biological treatment of waste gases. Clair Tech, Kane Dalsimer Kane Sullivan and Kurucz, May 5, 1987: US04662900 (69 worldwide citation)

Method for removal of malodorous and/or toxic components from waste gases by biological treatment of the same. Such removal is accomplished by passing the gas stream through a humidifying temperature conditioning section and then through a filter bed. The filter bed consists of a mixture of an organ ...


3
Artur Reischl, Kurt Mack: Use of water-absorbing, highly-filled polyurethane (urea) compositions for biological treatment of waste-containing liquids. Bayer Aktiengesellschaft, Gene Harsh, Joseph C Gil, March 18, 1986: US04576718 (60 worldwide citation)

The present invention relates to the use of non-floating, non-abrasive, highly-filled polyurethane (urea) compositions of high water-absorbability, which during their production contain no cells capable of growth as carriers for biomasses in the biological treatment of waste-containing liquids. Thes ...


4
Jean Marie Rovel, Claude Prevot, Roger Nicol: Process and apparatus for the anaerobic treatment of waste water in a filter including granular material. Degremont, Wenderoth Lind & Ponack, November 13, 1984: US04482458 (57 worldwide citation)

Waste water to be treated is introduced into a filter including granular material for supporting the biomass resulting from an anaerobic treatment operation. During such treatment operation biogas is formed, and the waste water being treated and the granular material supporting the biomass are conti ...


5
David C Pollock: Apparatus for biological treatment of waste waters. March 28, 2006: US07018530 (54 worldwide citation)

In a vertical shaft bioreactor, improved devices and methods are provided for enhanced secondary and/or tertiary treatment of wastewater, including residential, municipal and industrial wastewater. The devices and methods of the invention are useful for enhanced secondary wastewater treatment, inclu ...


6
Kenneth A Mikkelson, Lloyd W Johnson: Apparatus for the treatment of waste water. Aqua Aerobic Systems, Niro Scavone Haller & Niro, September 2, 2003: US06613222 (53 worldwide citation)

A process and apparatus for removing organic contaminants, nutrients and suspended solids from waste water. A three-phase cycle is used, consisting of a mix fill phase, a react fill phase and a react discharge phase. The process and apparatus eliminate the need for separate basins for anaerobic and ...


7
William L Schwoyer, Larry S Jaycox, Hermann W Peterscheck: Process for the treatment of waste. VerTech Treatment Systems, Cullen Sloman Cantor Grauer Scott & Rutherford, August 23, 1988: US04765900 (49 worldwide citation)

A method of treating organic waste is provided which includes separating the liquid portion of the waste from the solid portion prior to reacting said solid portion in an accelerated wet oxidation reaction. The method includes using an internally-derived ash from the wet oxidation reaction to weight ...


8
David S Conochie, Robin J Batterham, Terry A Matthews: Treatment of waste. Technological Resources, Merchant Gould Smith Edell Welter & Schmidt, March 14, 1995: US05396850 (47 worldwide citation)

A method of destroying organic waste in a bath of molten metal and slag contained in a vessel (3) is disclosed. The method comprises injecting organic waste into the bath to form a primary reaction zone (13) in which the organic waste is thermally cracked and the products of the thermal cracking whi ...


9
Kiichiro Mitsui, Sadao Terui, Kunio Sano, Toshihide Kanzaki, Kazuyoshi Nishikawa, Akira Inoue: Method for treatment of waste water. Nippon Shokubai Kagaku Kogyo, Omri M Behr, June 14, 1988: US04751005 (46 worldwide citation)

Efficient treatment of waste water is accomplished by subjecting the waste water to wet oxidation under continued supply of an oxygen containing gas at a temperature of not more than 370.degree. C. under a pressure enough for the waste water to retain the liquid phase thereof intact, in the presence ...


10
William A Krause, Evan P Shea: System for electrocatalytic treatment of waste water streams. Omnipure, Seed Berry Vernon & Baynham, December 18, 1979: US04179347 (43 worldwide citation)

A continuous system for disinfecting waste water streams, such as sewage and streams containing organic matter and removing suspended solids therefrom is disclosed. A waste water stream is passed into an electrolytic cell open to the atmosphere and between a series of electrically charged parallel e ...