Paper recycling in an increasingly environmentally conscious world is gaining importance. Withrapid developments in deinking processes for the reuse of secondary fibers being made, therecycling process is become more and more efficient. This work investigated the effect ofchemical different treatments including H2O2 and NaOH on repulping and flotation operationsduring the deinking of laser prin...

paper recycling in an increasingly environmentally conscious world is gaining importance. withrapid developments in deinking processes for the reuse of secondary fibers being made, therecycling process is become more and more efficient. this work investigated the effect ofchemical different treatments including h2o2 and naoh on repulping and flotation operationsduring the deinking of laser prin...

due to the problems of deposition of sodium silicate on the equipment and decrease of the service age of implements, deinking of old newspaper was accomplished using organic complex of sulvy-x in place of sodium silicate. sulvy-x was used at four levels of 0.3, 0.5, 0.7 and 1% on the basis of oven dry waste paper and chemical deinking was done. the effect of various charges of sulvy-x was inves...

The function(s) of soluble silicates in repulpinghashing and flotation deinking of waste newsprint/magazine were investigated extensively, under optimized conditions. During repulping/washing, silicate ’s response was characteristic of a buffer and a detergent. It was responsible for a 3.0% increase in I S 0 brightness. In repulping/flotation, silicate accounted for a 6.1% increase in I S 0 bri...

An equation solver data reconciliation software has been used to build a validated model of a waste paper deinking plant, by combining control room measurements and design specifications. An optimal sensor system configuration that allows validating key performance indicators by using only control room measurements has been determined by identifying, with genetic algorithm programming, the addi...