造纸污泥回填纸幅工艺的研究  

Study on technology of paper sludge backfilling into paper web

作　　者：韩卿[1] 阮秀娟[1] 张拓[1] 

机构地区：[1]陕西科技大学轻工科学与工程学院,陕西西安710021

出　　处：《陕西科技大学学报（自然科学版）》2016年第6期24-28,共5页Journal of Shaanxi University of Science & Technology

基　　金：华南理工大学制浆造纸工程国家重点实验室开放基金项目(201314)

摘　　要：以造纸废水处理过程中产生的终端污泥为辅料,以酶转化淀粉和羧甲基纤维素钠为增强剂,分别对污泥在纸幅表面/层间进行回填的应用性能进行了研究.结果表明:纸幅中添加污泥有助于改善成纸物理强度性能,当污泥回填量为5.0%时,成纸的主要物理强度可达到最优值;以5.0%用量将污泥回填于纸幅层间时,羧甲基纤维素钠比酶转化淀粉有更好的增强效果,其中羧甲基纤维素钠的最佳用量为4.0%(对绝干污泥).对纸张表面及Z向结构中污泥粒子分布的扫描电镜(SEM)观察分析表明,采用表面/层间回填法利用污泥的过程中大部分污泥粒子在纸幅表面或层间集中成层.The backfilling performance of paper sludge was studied in this paper.In this process,terminal sludge generated in papermaking wastewater treatment process was used as filler and enzymatic conversion starch and sodium carboxymethyl cellulose were used as strengthening agent.The results showed that adding sludge into paper web would be helpful to improve physical strength index of paper and a strong physical strength can be obtained when the addition of the sludge was 5.0%.When the loading of the sludge was 5.0%in interlayer filling process,a better effect can be obtained to use sodium carboxymethyl cellulose than to use enzymatic conversion starch and the appropriate amount of sodium carboxymethyl cellulose should be 4.0%（on oven dry sludge weight）.Observing the distribution of the sludge particles in the surface and Z-direction structure of the paper by the SEM showed that most sludge particles were retained on the surface or interlayer of the paper and forming a concentrated layer.

关 键 词：造纸污泥 纸幅回填 物理强度 资源化利用 

分 类 号：TS79[轻工技术与工程—制浆造纸工程] X793[环境科学与工程—环境工程]