Paper bug test developed

Spanish researchers have developed a sensor and biomarker system that will help the paper industry detect and eradicate biofouling by bacteria in factory equipment.

A team from the Universidad Complutense in Madrid developed the new microorganism identification technique, which allows for rapid detection of the most problematic bacteria.

A great majority of the paper factories, especially those producing recycled paper, suffer from biofouling in their installations. It is caused by certain bacteria that form colonies. They excrete polysaccharides that form a protective and adhesive matrix, known as biofilm. This allows the bacteria to attach to the surface of pipes, tanks and other equipment, which in turn traps other organic matter and non-adhesive bacteria.

The paper industry typically uses wide spectrum biocides at different points through the process to prevent biofilm build-up. However, concerns over toxicity of the agents and the development of resistance by some microorganisms has forced the industry to seek alternative treatments based on enzymes or biodispersants that have less environmental impact and are more specific in their action.