Bacterial Regrowth, Biofilms and Conditioning Films

Another study suggested that FA and HA were microbiologicaUy decomposed in anaerobic and aerobic environments, and the rate is slower when the oxygen content of FA decreased. This indicated that the oxygen is used by the microorganisms (Pettersson (1994)). 

Hambsch (1992) examined biological growth in different surface waters with a new method based on a measure of cell concentration with turbidity. The effect of ozone on biodegradability was studied, showing an increase due to ozone treatment. The non-humic fraction of river water was determined to be far more degradable. 

These findings imply a strong need to remove the smaller fraction of natural organics if regrowth potential is to be controlled. 

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