Einsatz von Biowäschern in der chemischen Produktion

Use of bioscrubbers in the chemical industry. Bioscrubbers are an ecologically and economically interesting alternative to conventional processes like combustion, adsorption and absorption. A brief account of the microbiological and engineering fundamentals of bioscrubbers are given followed by a review of new developments illustrating improvements in process design. The field of application for bioscrubbers is continuously expanding. Two examples of the use of bioscrubbers are discussed. They demonstrate the feasibility of deodorization of slightly contaminated waste gas, as well as the purification of waste gas which is highly loaded with organic substances. The authors describe a new concept for reduction of local hold up of biosuspension at the bioscrubber by integrating the waste water plant as a superior reservoir for fresh biosuspension. The most important advantages of the new concept are as follows: No problems with shut‐off time, a better safety in operation, and ready adaptation of the process to changing parameters.