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Tuesday, January 06, 2009

Biofouling Removal from Ultrafilters

Question:
What is the cleaning procedure for removing biofouling from ultrafilters?

Answer:
Biofouling is rapid microbial growth inside the ultrafiltration system that clogs the pores of the filters. When an in-house waste treatment plant equipped with ultrafiltration unit experiences excessive biofouling of filters resulting in frequent cleaning, this could lead to the system being out of service. In order to restore the filters to their normal length of service, we recommend using 1% Tergazyme enzyme cleaning solution at 120 deg F temperature. Temperature can be maintained by an immersion heater in the sump during a three hour clean-in-place program. Specifically a clean in place program of 20 minutes circulate, 20 minutes stop and soak, 20 minutes circulate followed by a thorough rinse will effectively remove the biofouling, restoring the filters to their normal length of service.

View the technical bulletin for Tergazyme by downloading our PDF.

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