Comparison of Old Newspaper Deinking in Neutral and Alkaline Conditions
The comparison of neutral and alkaline deinking of old newspaper(ONP)was investigated in this paper.The results showed that low pulping consistency could contribute to ink removal for neutral deinking of ONP,however,high pulping consistency benefit the alkaline deinking.The microscope observation illustrated the ink particles of neutral deinking were larger than that of alkaline deinking.Neutral deinked pulp had better H2O2 bleachability than alkaline deinked pulp,and it could save 60％ H2O2,when the brightness was similar to that of the alkaline deinked pulp.Furthermore,neutral deinking process could reduce CODcr of the effluent obviously.
neutral deinking alkaline deinking pollution loads deinking agent bleachability
SHOUJUAN WANG WEI ZHANG MENGHUA QIN FANGONG KONG
Shandong Key Laboratory of Pulp & Paper Engineering,Shandong Institute of Light Industry,Jinan,Shandong,250353,P.R.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
504-507
2008-05-14（万方平台首次上网日期，不代表论文的发表时间）