自来水厂尾泥的光催化改性及其制备的纸板材料性能  

Photocatalytic Modification of Sludge from Waterworks and the Properties of Paperboard Materials Prepared with It

作　　者：张美珠 卫灵君 张依媛 孙昊 李昊津 ZHANG Meizhu;WEI Lingjun;ZHANG Yiyuan;SUN Hao;LI Haojin(Jiangsu Provincial Key Laboratory of Food Advanced Manufacturing Equipment Technology,School of Mechanical Engineering,University of Jiangnan,Wuxi 214000,China;Tsinghua Suzhou Environmental Innovation Research Institute,Suzhou 215000,China)

机构地区：[1]江苏省食品先进制造装备技术重点实验室,江南大学机械工程学院,江苏无锡214000 [2]清华苏州环境创新研究院,江苏苏州215000

出　　处：《材料科学与工程学报》2023年第4期665-671,共7页Journal of Materials Science and Engineering

基　　金：江苏省食品先进制造装备技术重点实验室自主研究课题资助项目(FMZ201905)。

摘　　要：为了缓解国内自来水厂尾泥的处置问题和造纸用原材料资源紧缺的现象,本研究提出了一种自来水厂尾泥光催化改性处理并应用于造纸填料的解决办法。首先对自来水厂尾泥进行成分和粒径分析,其次利用光催化技术处理自来水厂尾泥,探讨催化剂含量、光催化温度对其光催化反应效率的影响规律。最后,添加30%光催化改性处理后的自来水厂尾泥作为造纸填料制备新型低成本且高性能的纸包装材料。实验发现光催化处理可以有效减少尾泥21.5%有机化合物含量。光催化处理后的尾泥可以填充于纸纤维的空隙中,增强纤维之间的连接。光催化处理后尾泥制备的纸板的抗张指数为20.11 N·m·g^(-1),较纯纤维纸板的提高了19.28%,较未光催化处理的尾泥制备的纸板提高了34.43%。光催化处理后生物质填料的留着率为75.86%,较未处理尾泥的生物质填料提高了79.42%。光催化处理后尾泥制备后纸板也就具备优良的热稳定性。This paper provides a new idea of applying sludge to papermaking filler after harmless treatment,which can alleviate the disposal problem of domestic water sludge and the scarcity of raw material resources for paper making.In this paper,the composition and particle size distribution of the sludge were studied.The sludge of the water plant was treated by photocatalysis,and the influence of catalyst content and photocatalytic temperature on the photocatalytic efficiency was analyzed.A new type of low-cost and highperformance paper packaging material was prepared by using the photocatalytically modified sludge as a papermaking filler.The results showed that photocatalytic treatment can effectively reduce the organic content rate in the sludge by 21.5%.That the sludge after photocatalytic treatment was used as a papermaking filler to fill the voids of paper fibers.The tensile index of paperboard prepared by biomass particles after photocatalytic treatment was 20.11 N·m·g^(-1),which was 19.28%higher than the 16.86 N·m·g^(-1)of pure fiber paperboard and 34.43%higher than that with the untreated biomass particles.The retention rate of biomass particles after photocatalytic treatment was 75.86%,which was an increase of 79.42%compared with the untreated biomass particles.The loss rate of the paperboard made of photocatalytically treated biomass particles was small and its thermal stability was excellent.

关 键 词：自来水厂尾泥 光催化 造纸填料 纸包装材料 资源化利用 

分 类 号：X703[环境科学与工程—环境工程]