公开(公告)号：DK146004B

公开(公告)日：1983-05-16

申请号：DK656574

申请日：1974-12-17

Applicant: BASF AG

Inventor： HESS K ,  STICKEL R ,  NAGEL O ,  SINN R ,  DAUCHER H

IPC: B01F3/04 ,  B01F3/08 ,  C02F3/22 ,  B01F5/00 ,  B01F5/02 ,  C02F3/12 ,  C02F3/26 ,  F04F5/26 ,  C02F3/20

Abstract: Method of biologically treating waste water with gasifying nozzles producing a screw-type flow in the activated sludge system. The method provides a maximum partial pressure gradient for the transfer of oxygen to the mixture of waste water and activated sludge.

公开(公告)号：DK656574A

公开(公告)日：1975-10-13

申请号：DK656574

申请日：1974-12-17

Applicant: BASF AG

Inventor： HESS K ,  STICKEL R ,  NAGEL O ,  SINN R ,  DAUCHER H

IPC: B01F3/04 ,  C02F3/22 ,  B01F3/08 ,  B01F5/00 ,  B01F5/02 ,  C02F3/12 ,  C02F3/26 ,  F04F5/26 ,  C02C1/06

Abstract: Method of biologically treating waste water with gasifying nozzles producing a screw-type flow in the activated sludge system. The method provides a maximum partial pressure gradient for the transfer of oxygen to the mixture of waste water and activated sludge.

公开(公告)号：DK682774A

公开(公告)日：1975-09-08

申请号：DK682774

申请日：1974-12-27

Applicant: BASF AG

Inventor： HESS K ,  STICKEL R ,  NAGEL O ,  SINN R ,  DAUCHER H

IPC: C02F3/22 ,  B01F3/04 ,  B01F3/08 ,  B01F5/02 ,  C02F3/12 ,  C02C1/06

Abstract: Waste water and sewage, contg. biodegradable impurities, are treated in >=1 enclosures with dissolved oxygen and activated sludge. The contact between these three reacting materials is intensified by increasing the number of interfaces and by shortening the diffusion paths in the sludge floccules. Injectors are used to this effect with a liq. nozzle an annular, concentric nozzle for the gas and an impulse exchange tube. The jet of liq. leaves the nozzle at a speed of 29m/sec. and sets up a shear gradient in the activated sludge; the air bubbles are finely divided and at the same time the sludge is sucked into the zone of the jet and is intensely mixed in the tube. The sludge leaving the latter is satd. with oxygen and the gas it contains causes it to rise in the form of a bubbling column to the surface of the activated sludge, giving up its oxygen proportionally to the depth of immersion of the injector and the oxygen content of the gas. The quantity of sludge which can be treated per unit of vol. of a biological settlement plant per day can be increased by 100% as compared with known processes.

公开(公告)号：ZA733290B

公开(公告)日：1974-05-29

申请号：ZA733290

申请日：1973-05-16

Applicant: BASF AG

Inventor： AICHER A ,  HESS K ,  HUSSY O ,  DIEM H ,  HAAS H ,  STICKEL R ,  MATTHIAS G ,  SPERBER H

IPC: C07C47/052 ,  B01J7/00 ,  B01J8/00 ,  B01J23/00 ,  C07C45/00 ,  C07C45/38 ,  C07C67/00 ,  C10L3/00 ,  F23C99/00 ,  C10L

Abstract: The production of combustion gas containing little or no carbon black by mixing a starting mixture of oxygen and methanol with more oxygen in specific proportions, igniting the mixture thus prepared and incompletely burning the methanol in the flame formed. The gas may be used advantageously in all cases where deposition of soot would be troublesome. It may be used with advantage for heating catalysts in catalytic syntheses, for example silver catalysts to be used for catalyzing the reaction of methanol with oxygen to form formaldehyde.

公开(公告)号：ZA7303290B

公开(公告)日：1974-05-29

申请号：ZA7303290

申请日：1973-05-16

Applicant: BASF AG

Inventor： AICHER A ,  HESS K ,  HUSSY O ,  DIEM H ,  HAAS H ,  STICKEL R ,  MATTHIAS G ,  SPERBER H

IPC: C07C47/052 ,  B01J7/00 ,  B01J8/00 ,  B01J23/00 ,  C07C45/00 ,  C07C45/38 ,  C07C67/00 ,  C10L3/00 ,  F23C99/00 ,  C10L

CPC classification number: C10L3/00 ,  C07C45/38 ,  C07C47/04