Enzymatic slime control

4 Enzymatic slime control (Steven Tseng, July 1997) 

This technology is working with stabilised enzymes based biodispersants specifically formulated for use in paper machine short white water loops. 

Several concepts are key to understanding the enzymatic removal of biofilm  

Biofilm [I, 5./.]. A biofilm is an organic film containing microorganisms embedded in polymeric substances. Biofilms typically consist of water, microorganisms, extracellular polymeric substances (EPS), embedded particles and debris, and dissolved substances. The unchecked development of biofilms on paper machines can result in sheet defects, breaks, malodours, and Microbiologically Influenced Corrosion (M.I.C.). 

Traditionally, the development of biofilms is controlled through the application of biocides and deposit control polymers. A number of alternative means of controlling biofilm development have been investigated over the years including the use of enzymes to disrupt the binding matrix of biofilms. 

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Enzymatic slime control A few paper machines are running using enzymatic blend for biological control. But the potential applications are restricted by the following limits ... 

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