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bce ›› 2016, Vol. 50 ›› Issue (4): 37-41.doi: 10.3969/j.issn.1673-5854.2016.04.007

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Pretreatment of Waste Paper Pulp and Enzymatic Hydrolysis Properties

YANG Shu-juan1, YOU Yan-zhi1, BU Ling-xi2, LI Xiao-li1, JIANG Jian-xin1   

  1. 1. College of Material Science and Technology, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China;
    2. Beijing Biomass Energy Technology Center, State Grid Energy Conservation Service Ltd., Beijing 100053, China
  • Received:2016-03-01 Online:2016-07-31 Published:2016-10-08

Abstract: In order to study the effects of various pretreatments(Na2SO3, H2O2 and HCl) on enzymatic hydrolysis of deinking waste paper pulp, the hydrolyses were carried out with the pretreated pulp as substrate and cellulase and cellobiase as hydrolytic enzyme.It was concluded that three pretreatment methods could increase glucose yield by improving the content of cellulose, inceasing the specific area and disrupting its structure.Compared with the yield of raw pulp, the highest yield was achieved with the hydrolysis of hydrogen peroxide pretreated deinking waste paper pulp (91.67%), closely followed by sodium sulfite (87.57%) and dilute acid pretreatment (82.49%).

Key words: deinking waste paper pulp, pretreatment, enzymatic hydrolysis, surface area, crystallinity

CLC Number: