1
Iman W Koster, Abraham Klapwijk: Method and apparatus for processing manure. Ecotechniek, Harness Dickey & Pierce, March 1, 1994: US05290451 (67 worldwide citation)

The invention relates to a method for processing manure, liquid manure and/or Kjeldahl-N containing waste water being subjected to a nitrification in an aerated reactor containing active sludge and to a denitrification in a high rate recirculation denitrification reactor (13) containing a very compa ...


2
Iman W Koster, Abraham Klapwijk: Method for processing manure, fermented manure and ammonium nitrogen containing waste water. Ecotechniek, Harness Dickey & Pierce, March 22, 1994: US05296147 (15 worldwide citation)

The invention relates to a method for processing manure, fermented liquid manure being subjected to nitrification in a first step and to denitrification in a subsequent step, an aerated reactor which contains active sludge rich in nitrifying bacteria being used in the nitrification step and acid-neu ...


3
Anthonie Leendert Monster, Willem Iman Koster: Method for processing a liquid nitrogen rich organic waste product, thereby obtained fertilizer solution and use thereof. Epenhuysen Chemie, Ecotechniek, Watson Cole Stevens Davis P L L C, August 12, 1997: US05656059 (14 worldwide citation)

A method for processing a liquid nitrogen-rich organic waste product, in particular a manure product, to an aqueous fertilizer solution utilizes a biological conversion process so as to obtain a biologically stable fertilizer solution. This conversion process includes at least a nitrification step w ...


4
Reintjes Rudolf Carlo: Process and apparatus for cleansing soil polluted with toxic substances.. Ecotechniek, September 18, 1985: EP0155022-A1 (11 worldwide citation)

The invention relates to a process for cleansing soil polluted with toxic substances having a high temperature of evaporation, said soil being heated in a first rotating kiln (2, 3) to evaporate part of the toxic substances, subsequently is heated in a second kiln (10) of a fluid bed type to a highe ...


5
Van de Velde Johannes Leendert, Van Der Meer Johannes Pieter, Mischgofsky Frederik Hendrik M: A method and apparatus for cellularly isolating, treating and/or removing strongly polluted material present in or on the soil.. Ecotechniek, Heijmans Milieutechniek, August 17, 1988: EP0278557-A1 (6 worldwide citation)

Polluted material contained in, or lying on the ground is isolated, treated in situ and/or removed by a) placing laterally closed, hollow piles in the soil according to a lattice pattern in adjoining relationship; said piles having closable top and bottom ends; b) closing the top and bottom ends of ...


6
Henricus F L M Spanjers: Method for detecting the need for calibrating probes. Ecotechniek, Young & Thompson, May 7, 1996: US05514968 (6 worldwide citation)

An in situ probe failure detection method for probes which deliver an electric signal on account of a change of the concentration of a substance to be measured. An example of such a probe failure may be caused by, for example, fouling of the membrane as the relative change in signal may be interpret ...


7
Koster Iman Willem, Klapwijk Abraham: Method and installation for processing manure, fermented manure and kjeldahl-n containing waste water.. Ecotechniek, April 24, 1991: EP0423889-A1 (5 worldwide citation)

The invention relates to a method for processing manure, fermented liquid manure being subjected to nitrification in a first step and to denitrification in a subsequent step, an aerated reactor which contains active sludge rich in nitrifying bacteria being used in the nitrification step and acid-neu ...


8
Abraham Klapwijk, Henricus L F M Spanjers: Method for determining the respiration rate of a respiring material in the form of a continuous process current, as well as a device suitable for such an application. Ecotechniek, Harness Dickey & Pierce, May 21, 1991: US05017496 (5 worldwide citation)

Method and device for determining the respiration rate of a respiring material such as active sludge in a continuous process flow before and after holding thereof in a respiration chamber. The oxygen content in the continuous process current is done at a single measurement point. This is done by rev ...


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Koster Iman Willem, Klapwijk Abraham: Method and apparatus for processing manure.. Ecotechniek, October 21, 1992: EP0509609-A1 (3 worldwide citation)

The invention relates to a method for processing manure, liquid manure and/or Kjeldahl-N containing waste water being subjected to a nitrification in an aerated reactor containing active sludge and to a denitrification in a high rate recirculation denitrification reactor (13) containing a very compa ...