Description: Das Projekt "Ein Biofilm-Reaktorprozess zur Entfernung chlorierter Kohlenwasserstoffe aus Abgasen" wird vom Umweltbundesamt gefördert und von Eidgenössische Technische Hochschule Zürich, Laboratorium für Technische Chemie durchgeführt. The removal of methylene chloride from waste gas streams is possible using microbial processes since all of these compounds have been found to be aerobically degradable. One process possibility is the absorption in aqueous solution, followed by biodegradation. Preliminary investigations have demonstrated the feasibility of operating a biofilm fluidized sand bed reactor in a three-phased mode (gas-liquid-solid). A reactor design will be required which allows supplying oxygen without losing the volatile substrate to the gas phase. The final objective is the construction and operation of a laboratory-scale absorber reactor for the biological removal of dichloromethane from a gas stream. This reactor should allow a detailed study of the influence of operating variables such as flow rates, feed concentrations, temperature and pH. A mathematical simulation model will be constructed to predict the influence of all operating variables on the effluent gas and liquid dichloromethane concentration.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Biopharmazeutikum ? Chlorkohlenwasserstoff ? Zürich ? Absorber ? Anaerobe Bedingungen ? Halogenkohlenwasserstoffe ? Sandfilter ? Sauerstoff ? Mikrobiologie ? Absorption ? Biofilm ? Bioreaktor ? Futtermittel ? Sand ? Gasförmiger Stoff ? Fließgeschwindigkeit ? Abgasreinigung ? Oxidation ? Reaktor ? Simulation ? Studie ? Verfahrenstechnik ? Laborversuch ? Nassverfahren ? Biologischer Abbau ? Reinigungsverfahren ? Abgas ? Filtration ? Epuration biologique des eaux ? Film ? Polluant organique halogene ? Procedes de purification ? Rejets gazeux ? Degradation biologique ?
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 1988-10-01 - 1991-09-01
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