Process for aerating biological suspensions

Abstract

Abstract GANISMS SIGNIFICANTLY IMPROVES THE EFFICIENCY OF GAS UTILIZATION IN BIOLOGICAL AERATING SYSTEMS. A PROCESS FOR INTRODUCING A GAS INTO A SUSPENSION OF MICROORGANISMS WHEREIN A DENSE BED OF INTRODUCED GAS AND LIQUID MICROORGANISM SUSPENSION IS CREATED IN THE UPPER ZONE OF A TREATMENT RECEPTACLE BY COUNTER-CURRENTLY INTRODUCING A UNIFORM DISPERSION OF A GAS AT A CONSTANT RATE INTO THE BASE OF A TREATMENT RECEPTACLE HAVING DISPERSED THEREIN A LIQUID SUSPENSION CONTAINING MICROORGANISMS, WHICH SUSPENSION IS INTRODUCED AT THE TOP OF SAID RECEPTACLE AND THE UPPER ZONE DENSE BED IS SEPARATED FROM A LESS DENSE LOWET ZONE BY AN INTERMEDIATE INTERFACE ZONE. THE UPPERMOST LAYER CONTAINS A GREATER QUANTITY OF GAS THAN THE LOWER LAYER AND BY CONTINUOUSLY REGULATING THE RATE OF SUSPENSION WITHDRAWAL FROM THE RECEPTACLE THEREIN IS MAINTAINED A STABLE DENSELY PACKED BED OF GAS AND MICROORGAISM SUSPENSION. HOMOGENEOUS DISTRIBUTION OF GAS AND THE PRESENCE OF GAS-RICH ENVIRONMENT RESULTING FROM THE UPPER ZONE DENSE BED OF GAS AND MICROOR-

Inventors

• 👤 C Lackme
• 👤 A Digonnet
• 👤 J Pont
• 👤 B Papillon
• 👤 L Colas
• 👤 J Boutin

Bibliographic Details