Food additives as factor of microbial corrosion of steel

Abstract

Industrial equipment simultaneously undergoes several types of corrosion, approximately 50% of corrosion cost is due to microbiologically influenced corrosion [1, p. 290]. Types of industrial objects that destroyed with the participation of microorganisms are equipment of treatment facilities, industrials equipment for food industries, etc. During the operation of treatment facilities (especially in the initial stages of water treatment in the presence of a sufficient amount of nutrients) in anaerobic conditions on the surface of metal structures a sulfidogenic biofilm is formed - the place of active corrosion processes [1, p. 333]. Food additives that are widely used and fall into waste water can be sources of carbon and sulfur for corrosive microorganisms.