Self‐priming aerator and mechanical defoamer for microbiological processes

Abstract

Abstract The design and operational characteristics of a sell‐priming aerator are described. The aerator works without a compressor. H sucks the desired air quantity into the tank and distributes it, uniformly and in very fine bubbles over a certain cross‐section. The design and operational characteristics of a mechanical defoamer are described. The defoamer is mounted to the top of the fermentation tank and separates foam by centrifugal force into air and liquid. It is capable of handling foams of different composition and quality without, the addition of anti foam agents. Using submerged vinegar fermentation, production of baker's yeast., and industrial waste, water treatment as examples, the performance of aerators and defoamers of different, sizes is discussed.