منابع مشابه
Microbial Deinking of Printed Paper
In this study we report the deinking of printed paper using microorganisms isolated from oil contaminated soil. The microorganisms producing lipase and esterase enzymes were screened using tributyrin agar. Deinking of the pulp was carried out using screened microorganisms and the preliminary identification of the microorganism that showed effective deinking was carried out by biochemical tests ...
متن کاملFunctional and Performance Characteristics of Soluble Silicates in Deinking. Part I: Alkaline Deinking of Newsprint/Magazine
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...
متن کاملusing magnesium hydroxide as replacement of sodium hydroxide in deinking of old newspapers and old magazines mixture
this study was aimed to investigate the possibility of using magnesium hydroxide as an alternative for sodium hydroxide in deinking of newsprint and magazine mixture. the old newsprint and magazine mixture (onp/omg -70/30) was treated by magnesium hydroxide at three levels: 1, 1.5 and 2 percent (based on oven dried pulp weight), for 20 min. optical and mechanical properties and effluent cod loa...
متن کاملDeinking of HP digital commercial prints
Hewlett-Packard (HP) is actively engaged in external and internal research to ensure that deinkability of the current recycled paper streams is maintained as the percentage of digital prints in deinking mill furnish increases. As part of this effort HP is working to understand how ink and paper interactions for both inkjet and liquid electrophotography affect the flotation deinking process. Res...
متن کاملRole of Deinking Agent and Its Challenge
The basic deinking process for old newspapers, the role of the deinking agent, the science and the condition for good deinking are reviewed based on the results in our laboratory first. Then, by using this typical deinking process, the deinkability of the pigment―based inkjet printings was examined. In commercial printings, the transition to on―demand printings is in progress, because the on―de...
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ژورنال
عنوان ژورنال: JAPAN TAPPI JOURNAL
سال: 1963
ISSN: 0022-815X,1881-1000
DOI: 10.2524/jtappij.17.20