WebApr 9, 2024 · Mixed enzyme bleaching of wood pulp developed on bench scale. Xylanase pre-bleaching successfully demonstrated at Seshasayee Paper and Boards Ltd. Erode .15% beach chemical (chlorine & hypo) and 20-25% AOX reduction in bleach effluents achieved. Enzymatic refining of cotton comber successfully demonstrated in Security … WebSep 10, 1990 · An enzymatic composition for treating wood pulp comprising at least one ligninperoxidase derived from a fungus culture, which lignin peroxidase is chemically modified so that it cannot be adsorbed onto the pulp. ... A process for bleaching wood pulp which comprises treating the pulp with a composition according to any one of …
Traduction de "treatment of pulp to" en français - Reverso Context
WebThe global development of the bioeconomy is impossible without technologies for comprehensive processing of plant renewable resources. The use of proven pretreatment technologies raises the possibility of the industrial implementation of the WebBleaching of pulp with mixed enzyme had resulted into a notable decrease in kappa number and increased brightness as compared to xylanase alone. Analysis of bleaching conditions had denoted that 8 IU g(-1) of mixed enzyme preparation (xylanase/laccase, 22:1) had led into maximal removal of lignin from pulp when bleaching was performed … election results senate seats 2022
Microbial Enzymes and Their Application in Pulp and Paper
WebA new thermo-alkali-tolerant crude xylanase from Coprinellus disseminatus decreased kappa number by 34.38% and improved brightness and viscosity by 1.6 and 6.47% respectively after XE1-stage during prebleaching of Anthocephalus cadamba kraft-AQ pulp. WebAfter washing in the lab, the pulp has an ISO brightness of 51.4%, kappa number 11.0 and 17.9% w/w xylan. A commercial dissolving hardwood (mixed maple and aspen) pulp … WebSep 12, 2014 · The method of claim 1, wherein the pulp is wood pulp. 6. The method of claim 1, wherein the pulp is a chemical pulp, such as kraft pulp. 7. ... When carried out in connection with pulp bleaching the enzyme preparation may be added together with bleaching chemicals such as chlorine or chlorine dioxide. Applying oxygen gas, … food procurement meaning