公开(公告)号：US3794582A

公开(公告)日：1974-02-26

申请号：US3794582D

申请日：1972-04-10

Applicant: RHONE PROGIL

Inventor： LACKME C ,  DIGONNET A ,  PONT J ,  PAPILLON B ,  COLAS L ,  BOUTIN J

IPC: A61L2/20 ,  C02F1/72 ,  C02F1/76 ,  C02F1/78 ,  C02F3/12 ,  C12M1/04 ,  C12P7/48 ,  C02C1/04

CPC classification number: C12P7/48 ,  A61L2/20 ,  C02F1/72 ,  C02F1/76 ,  C02F1/78 ,  C02F3/12 ,  C12M29/06 ,  Y02W10/15

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-