Effect of Cationic Polymer on Deinking Efficiency of Mixed Office Waste
Some cationic polymers as flocculants to optimize the deinking process of Mixed Office Waste(MOW)were studied in this paper.The results showed that with the adding of condign dosage of CPAM(0.05％),the brightness of the deinked pulp could be increased 5.2 units and the residual ink particle content of the deinked pulp was reduced by 66.77％;with dosage of PAC(0.8％),the brightness could be increased by 4.5 units and the residual ink particle content was reduced by 65.41％;with dosage of CS(1.0％),the brightness could be increased by 4.2 units and the residual ink particle content was reduced by 64.65％ under the following deinking conditions: dosage of deinking additive 0.5％,NaOH 2.0％,Na2SiO3 2.0％,EDTA 1.5％,H2O2 1.0％,pretreatment temperature 80℃ and time 50 min.Among three cationic polymers,the order of influence on the deinking result was CPAM>PAC>CS.The experiment also indicated that there was a good functional correlation between the quality indexes of the deinked pulp and the main colloidal characteristic parameters.When the zeta potential,transmissivity increased and contact angle,absorbance of deinking system decreased,the deinked pulp quality would become better.
mixed office waste, MOW cationic polymer brightness residual ink particle
SHIJIE ZHANG QING HAN YUNZHAN ZHANG
Dalian Polytechnetic University,Dalian,Liaoning,116034,China College of Papermaking Engineering,Shaanxi University of Science & Technology,Shaanxi,712081,China
国际会议
第二届国际造纸与环境学术会议(The Second International Papermaking & Environment Conference)
天津
英文
497-499
2008-05-14（万方平台首次上网日期，不代表论文的发表时间）