Herding Gmbh Filtertechnik

Herding Gmbh

Atz-evns

Kurt Palz

Urs Herding

Walter Herding

Stefan Hajek

Ralf Schneider

Rolf Jung

Wolfgang Raabe

Stephan Prechtl

Reiner Thuerauf

Rainer Scholz

Bernd Meindl

Johann Winter

Rainer Thurauf

Reiner Thurauf

Reiner Thürauf

A method for filtering out foreign particles from a cooling lubricant used in a process of machining a workpiece includes providing an inherently stable, flow-porous filter element. The filter element comprises a porous main body made of joined plastics particles and having an afflux surface and a porous coating on the afflux surface for surface filtration. The porous coating first component particles and/or fibres, second component anti-adhesion particles to mitigate the adhesion of filtered out material to the porous coating and to facilitate cleaning of the filter element, with the first component particles and/or fibres and the second component particles being mixed in the porous coating, a solidified inorganic binder, and a set adhesive. The solidified inorganic binder and the set adhesive bind the first component particles and/or fibres and the second component particles to each other and to the porous main body. The cooling lubricant is first passed through the porous coating and thereafter through the porous main body of the filter element.

Filter element with coating for surface filtration

A reactor () for anaerobic waste water treatment is designed as a loop-type column reactor comprising a central flow channel (). In the annular space () between the central flow channel () and the reactor wall, there are positioned carrier elements () for immobilizing microorganisms, with flow passages being provided between adjacent carrier elements (). The lower portion of the reactor (), below the carrier elements, is designed as a space intended to receive waste water having microorganisms floating therein during operation of the reactor (). During operation, there are provided both floating microorganisms and microorganisms that are immobilized on the carrier elements. The waste water to be treated flows centrally downward and up again along the carrier elements (), with the flow being generated in part by the gas development of the microorganisms. The reactor is used to carry out a process for anaerobic waste water treatment, the reactor being suited for waste water treatment in the food processing industry and the feeding stuff industry as well as in the paper industry and the textile industry.

Reactor and method for anaerobic wastewater treatment

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Crailsheim, Germany

Kurt Palz