落叶松KP浆ClO_2漂白废水特性  

Properties of Chlorine Dioxide Bleaching Effluents of Larch Kraft Pulp

作　　者：彭建军[1] 周景辉[1] 张运展[1] 

机构地区：[1]大连轻工业学院化学工程系,辽宁大连116034

出　　处：《大连轻工业学院学报》1999年第3期209-212,共4页Journal of Dalian Institute of Light Industry

基　　金：辽宁省自然科学基金!资助项目 ( 972 1 48) .

摘　　要：探讨了落叶松KP浆ClO2 漂白废水的特性 ,测定了废水的污染负荷 ,并与常规三段漂 (CEH)进行比较 ,进一步确认ClO2 的漂白优势。结果表明 ,ClO2 部分或全部替代元素氯 ,能有效地降低废水中的AOCl和CODCr、BOD5 质量分数。各漂白程序的前两段总废水中的AOCl含量相对于CEH ,D/CE1D1E2 D2 减少了 42 .3 % ,DE1D1E2 D2 减少了 76.2 % ,CODCr、BOD5 含量比CEH分别低 3 7%～ 45%、2 4%～ 3 3 % ,DE1D1E2 D2 漂白废水中的CODCr、BOD5 含量略低于D/CE1D1E2 D2 。DE1D1E2 D2 前两段废水中木素的平均分子量比CEH大。The properties of chlorine dioxide bleaching effluents of larch kraft pulp has been studied and are compared with CEH sequence. The results indicate that chlorinated organic compounds, COD Cr and BOD 5 in the effluents can be reduced effectively via part or total substitution of chlorine dioxide for chlorine. As far as the content of AOCl in the total effluents of the first and second stage, compare to CEH sequence, DE 1D 1E 2D 2 reduced 76.2%, and D/CE 1D 1E 2D 2 sequence reduced 42.3%. The content of COD Cr in the effluents of D/CE 1D 1E 2D 2 and DE 1D 1E 2D 2 sequence is 37%-45% lower, and BOD 5 lowered 24%-33% than CEH sequence's. The molecular weight of lignin in the first two stages effluents of DE 1D 1E 2D 2 is higher than that in the CEH sequence.

关 键 词：落叶松 硫酸盐浆 漂白废水 制浆 废水处理 

分 类 号：TS745[轻工技术与工程—制浆造纸工程] X793.03[环境科学与工程—环境工程]