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公开(公告)号：SE405322B
公开(公告)日：1978-12-04
申请号：SE1443771
申请日：1971-11-11
Applicant: HOECHST AG
Inventor： KARRENBAUER K , JAEKEL G , KIRSTEIN D , GOEDICKE E
Abstract: 1355990 Biologically purifying effluents KNAPSACK AG 16 Nov 1971 [5 Dec 1970] 53134/71 Heading C1C [Also in Divisions B1 and G1] The escape of foam from a closed reactor 1 having a mechanical defoaming means 7 therein is inhibited by continuously regulating within a predetermined range the foam pressure prevailing above the liquid phase, by modifying the level of the liquid phase between upper and lower levels 10, 11 through automatic adjustment of the valves 4, 5 controlling the inlet and outlet lines 2, 3 for liquid. The apparatus also includes a gas admission tube 6, a hollow driving shaft 8 of the defoamer 7, which serves as an outlet for gas, and a control system 9 arranged to actuate valves 4, 5 in response to signals from the pressure meter (PC) and level meter (LC). The method is applicable particularly to aerobic fermentation, for example the microbiological purification of effluents, involving intensive foam formation varying at irregular intervals.
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公开(公告)号：SE378406B
公开(公告)日：1975-09-01
申请号：SE832371
申请日：1971-06-28
Applicant: HOECHST AG
Inventor： JAEKEL G , GOEDICKE E , KARRENBAUER K , KIRSTEIN D
Abstract: 1322439 Aerating liquids KNAPSACK AG 19 Aug 1971 [31 Aug 1970] 38947/71 Heading B1C [Also in Division Cl] In a method and apparatus for purification of polluted effluent the liquid passes through a plurality of shearing zones whereby the continuous formation of new gas bubbles with fresh surfaces is effected. In the apparatus shown the liquid and oxygen-containing gas enter at the bottom and the shearing zones comprise rotatable impellers 4 which force the liquid and gas outwardly through apertures 5. Baffles 6 and flow guides 8 cause the mixture to circulate radially without turbulence and treated liquid is discharged at the top of the apparatus.
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