B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
362/12, 403/42,
B01D 21/00 (2006.01) B03C 1/00 (2006.01) C02F 1/48 (2006.01)
Patent
CA 1269493
A PROCESS FOR THE IMPROVED SEPARATION OF CLARIFIED LIQUID FROM BIOMASS IN THE BIOLOGICAL TREATMENT OF SEWAGE ABSTRACT OF THE DISCLOSURE The present invention relates to a process for the improved separation of clarified liquids from biomass or rather for the separation of clarified sludges in the (aerobic and/or anaerobic) biological treatment of sewage using magnetically separable materials as carrier masses. The carrier masses are organic materials containing magnetically separable inorganic materials incorporated in abrasion-resistant form. These magnetically separable carriers occupy a suspension volume of from 1 to 85% by volume, based on the clarified liquid. The carriers contain magnetically separable inorganic materials incorporated as fillers in organic polymeric materials, particularly in cellular polymeric carriers. Other organic or inorganic fillers may also be used in these organic carriers. The magnetically separable materials used are oxides or mixed oxides of heavy metals, preferably iron oxides, such as Fe304 (magnetite) and .gamma.-Fe2O3, which are used in average particle sizes of less than 50 µm, preferably less than 10 µm and more preferably less than 3 µm, for example from 0.1 to 1 µm. These magnetic carriers provide for magnetic separation of the biomasses containing these magnetic materials in the biological treatment of sewage. This invention also relates to a process for the production of cellular carriers masses on the basis of polyurethane(urea)s which are produced by reaction of NCO-prepolymers, water and magnetically separable inorganic materials and optionally other fillers, however no fillers on the basis of (preformed) poly- mer foams, and/or lignite and/or peat. This invention also relates to thus produced cellular polyurethane (urea) - carrier - compositions.
514397
Henkel Hanno
Reischl Artur
Sahlmen Friedhelm
Aktiengesellschaft Bayer
Swabey Ogilvy Renault
LandOfFree
Process for the improved separation of clarified liquid from... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the improved separation of clarified liquid from..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the improved separation of clarified liquid from... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1205414