| 纳米TiO_2—两性淀粉对脱墨浆新闻纸抄造过程中DCS去除的研究 |
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| 引用本文： | 寇顺利,陈小泉,刘焕彬,刘红峰,曹人波,李宗任.纳米TiO_2—两性淀粉对脱墨浆新闻纸抄造过程中DCS去除的研究[J].造纸科学与技术,2009,28(3):48-53. |
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| 作者姓名： | 寇顺利 陈小泉 刘焕彬 刘红峰 曹人波 李宗任 |
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| 作者单位： | 华南理工大学制浆造纸工程国家重点实验室,广东,广州,510640 |
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| 基金项目： | 广东省国家教育部产学研合作项目 |
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| 摘 要： | 研究了两性淀粉(AmS)、纳米TiO2单元体系、纳米TiO2-AmS双元体系、阳离子淀粉(CS)/阳离子聚丙烯酰胺(CPAM)/阴离子聚丙烯酰胺(APAM)三元体系对全脱墨浆(DIP)的动态絮聚作用,并考察这几种助留助滤体系在白水循环使用情况下,对抄造纸页部分性能及白水中DCS去除效果的影响.动态絮聚实验表明:AmS单元体系几乎没有去除DCS的作用,增大用量还会使体系的DCS残留量更高;纳米TiO2单元体系有一定的DCS去除效果; TiO2-AmS双元体系不仅提高了DCS的去除效果,还降低试剂用量,当其用量为0.16%(TiO2)-0.4%(AmS)时,DCS的去除率达到50%以上;三元体系的助留助滤效果较好,但是DCS的去除效果一般.白水循环使用抄纸实验表明:纳米TiO2-AmS体系对残余油墨的捕集能力最强,对DCS的去除效果也最好,在白水循环抄纸进行到22次时,DCS的富集量达到平衡,白水离心处理后CODCr值为43 mg/L左右,较好抑制了DCS的进一步富集;三元体系在循环进行到52次时,其离心处理后白水CODCr值稳定在65 mg/L左右.
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| 关 键 词： | 纳米TiO2 脱墨浆 溶解物和胶体物 |
Study on the Removal of Dissolved and Colloidal Substances from Deinked Pulp with Nanosized TiO_2 |
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| Kou Shunli,Chen Xiaoquan,Liu Huanbin,Liu Hongfeng,Cao Renbo,Li Zongren.Study on the Removal of Dissolved and Colloidal Substances from Deinked Pulp with Nanosized TiO_2[J].Paper Science & Technology,2009,28(3):48-53. |
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| Authors: | Kou Shunli Chen Xiaoquan Liu Huanbin Liu Hongfeng Cao Renbo Li Zongren |
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| Affiliation: | Kou Shunli Chen Xiaoquan Liu Huanbin Liu Hongfeng Cao Renbo Li Zongren (State Key Lab of Pulp & Paper Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China) |
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| Abstract: | This paper reported the removals of dissolved and colloidal substances(DCS) by flocculating with amphoteric starch(AmS),nanosized TiO2,TiO2-AmS dual-system and ternary retention systems contained CS-CPAM-APAM.The experimental results of dynamic flocculation by dynamic drainage jar(DDJ) showed that the AmS alone had little effect on DCS removal;both the nanosized TiO2 alone and the ternary retention system contributed limited effect on DCS removal,and a significant improvement of removal of DCS was achieved ... |
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| Keywords: | nanosized TiO2 deinked pulp dissolved and colloidal substances |
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