Novel two-stage three-phase fluidized-bed bioreactor with immobilized living cells for waste-water treatment application. Final report, September 1985-September 1988

Technical Report · Sat Oct 01 00:00:00 EDT 1988

OSTI ID:5880221

Fan, L S

This research investigated the fundamental, practical design and operation of a novel two-stage three-phase fluidized-bed bioreactor for cost-effective waste-water treatment. Phenol biodegradation was selected as a model biodegradation system for the study. The fundamental studies included bubble wake structure and dynamics, solid mixing, gas-liquid mass transfer, biofilm characteristics, and biodegradation kinetics. Comprehensive mathematical models for steady state and dynamic phenol biodegradation in both draft tube and conventional three-phase fluidized bed bioreactors were developed and experimentally validated. These models provided guidelines for design, control and optimization of biodegradation, processes in three-phase fluidized bed bioreactors. The two-stage bioreactor was demonstrated to successfully integrate immobilization, biofilm development, biodegradation and biofilm control functions into one single unit with the least human intervention. The performance of the two-stage bioreactor in terms of biodegradation rate per unit solid loading was shown to be superior to that of a one-stage three-phase fluidized-bed bioreactor.

• Research Organization: Ohio State Univ., Columbus, OH (USA). Dept. of Chemical Engineering
• OSTI ID: 5880221
• Report Number(s): PB-89-178602/XAB
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
BIOREACTORS
FLUIDIZED BEDS
INDUSTRIAL WASTES
WASTE WATER
WATER TREATMENT
ACTIVATED CARBON
BIODEGRADATION
BIOTECHNOLOGY
BUBBLES
DESIGN
FLUID FLOW
IMMOBILIZED CELLS
KINETICS
MASS TRANSFER
MATHEMATICAL MODELS
PERFORMANCE
PHENOLS
POLLUTION CONTROL EQUIPMENT
PROGRESS REPORT
ADSORBENTS
AROMATICS
CARBON
CHEMICAL REACTIONS
DECOMPOSITION
DOCUMENT TYPES
ELEMENTS
EQUIPMENT
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
LIQUID WASTES
NONMETALS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
WASTES
WATER
520200* - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)
320305 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management