Sciences

Near-neutral final chlorine dioxide brightening theroy and practice

Near-neutral final chlorine dioxide brightening theroy and practice

RÉSUMÉ

It is well known that pH affects the effectiveness of chlorine dioxide treatment, but the standard recommendation has been to maintain a poststage pH range for brightening with chlorine dioxide between 3.5 and 4. In this paper, we confirm the optimum pH for final chlorine dioxide bleaching is dependent on chlorine dioxide charge, but that this stage should be operated with a final pH close to neutral when a typical chlorine dioxide charge is applied.

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Distribution of optical brightening agent (OBA), in the fibre wall of high-yield and kraft pulps

Distribution of optical brightening agent (OBA), in the fibre wall of high-yield and kraft pulps

RÉSUMÉ

An aspen High-yield pulp (HYP) was fractionated and processed with Optical Brightening Agents (OBA), and their UV fluorescent images were taken using the fluorescen...

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Towards a commercial production of phage-based bioactive paper

Towards a commercial production of phage-based bioactive paper

RÉSUMÉ

Detection and disabling of harmful bacteria such as Escherichia coli (E.coli), Listeria, and Salmonella is of great importance to control disease apparition in air,...

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