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P-RC APMP酶促打浆的研究
刘俊1 胡惠仁1 王斌斌2
（1. 天津科技大学天津市制浆造纸重点实验室，天津，300457；2.天津科技大学工业微生物教育部重点实验室，天津，300457）
摘 要：采用不同生物酶（Nov 476、Nov 342、Nov 863、 Nov 500L及Nov 51003）处理P-RC APMP，并对酶处理过的P-RC APMP进行PFI磨打浆，以筛选出适合于P-RC APMP酶促打浆的生物酶，并对该酶的酶促打浆工艺条件进行优化。结果表明，Nov 476较适用于P-RC APMP的酶促打浆；P-RC APMP酶促打浆的较优处理条件为：Nov 476处理温度55℃，pH值6.5，Nov 476处理时间1.5 h，用量30 U/g，浆浓3%，打浆时间90 s；优化条件下对P-RC APMP进行Nov 476处理并PFI磨打浆，相同打浆条件下，Nov 476处理过的浆料打浆度比对照浆料提高9°SR；相同打浆度下，Nov 476处理后的浆料能耗降低，且对成纸强度性能没有显著的负面影响。
关键词：P-RC APMP；纤维素酶；酶促打浆；节约能耗
Study on Enzymatic Beating of P-RC APMP
LIU Jun1,* HU Hui-ren1, WANG Bin-bin2
(1. Tianjin Key lab of pulping and papermaking Engineering, Tianjin University of Science & Technology, Tianjin, 300457；2. Key Laboratory of Industrial Microbiology， Ministry of Education， College of Biotechnology， Tianjin University of Science & Technology， Tianjin, 300457)
（*E-mail: hawk-sky115142@163.com）
Abstract：In this study, different enzymes were used to pre-treat P-RC APMP pulp before refining in order to find out the enzymes which can be used for enzymatic beating of P-RC APMP. The enzymes treatment conditions (including the treatment temperature, time, pH, pulp concentration and refining conditions) were optimized and the feasibility of enzymatic beating of high yield pulp was evaluated. Results showed that the enzyme cellulase with the symbol of Novozyme 476 is suitable for the enzymatic beating of P-RC APMP, and the optimal conditions are: 55℃, pH value 6.5, enzyme treatment time 1.5 h, pulp consistency 3%，PFI mill refining time 90 s. At this condition, the beating degree increases by 9°SR when the refining conditions are the same as the control sample, and energy consumption can be saved by about 22.2% compared with the same beating degree. There is no negative impact caused by enzyme treatment on the paper strength.
Key words: P-RC APMP; cellulase; enzymatic beating; energy saving
采用生物酶提高瓦楞原纸强度的研究
万金泉1,2 杨静1 马邕文1,2 王艳2 郭文杰2
(1.华南理工大学制浆造纸工程国家重点实验室，广东广州，510640；2.华南理工大学环境科学与工程学院，广东广州，510006)
摘 要：采用漆酶-组氨酸的组合方式处理OCC浆，并先后在实验室和纸厂研究此生物处理方式对瓦楞原纸性能的影响。实验室小试研究结果表明，当漆酶和组氨酸的用量分别为0.90 U/g和1.0%（对绝干浆）时，成纸的干湿环压指数分别提高了22.9%和30.3%。中试结果也表明，漆酶和组氨酸用量分别为0.225 U/g和0.10%时，成纸干湿环压指数分别提高14.9%和26.4%，纵横向抗张指数分别提高8.0%和10.7%，耐破指数提高16.4%。同时生物处理在促进纤维分丝帚化方面也有明显效果，经处理的纤维保水值上升了40个百分点，纤维平均孔径和比表面积分别提高了1.1%和5.1%，并且浆料中羧基含量也提高了35.4%。
关键词：漆酶；OCC浆；瓦楞原纸；环压指数；保水值
Pilot Enzymatic Treatment of Corrugating Medium
WAN Jin-quan1,2 YANG Jing1* MA Yong-wen1,2 WANG Yan2 GUO Wen-jie2
(1. State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640; 2. College of Environmental Science and Engineering,South China University of Technology, Guangzhou, Guangdong Province, 510006)
(*E-mail: jingsmile1987@163.com)
Abstract: In this paper, the influence of laccase-histidine on OCC fiber proterties was studied both in laboratory and mill. The laboratory results showed that when the amounts of laccase and histidine were 0.90 U/g and 1.0% respectively. The dry and wet ring crush index of papersheet increased by 22.9% and 30.3% compared with the control sample. Furthermore, the pilot test results also showed that when the amounts of laccase and histidine were 0.225 U/g and 0.10% (on oven dried pulp), the dry and wet ring crush index of papersheet increased by 14.9% and 26.4%, the longitudinal and cross tensile index increased by 8.0% and 10.7%, and brusting index increased by 16.4%, correspondingly. Besides, fibrillation was greatly developed and water retention value (WRV) increased by 37.5%. At the same time, the average pore size of fiber wall, specific surface area and carboxy group content increased by 1.1%, 5.1% and 35.4% respectively.
Key words: laccase; OCC pulp; corrugating medium; ring crush index; WRV
淀粉基固着剂提高湿部助剂的吸附与作用效果
罗灵芝 王立军 赵俭 徐斌斌
（天津科技大学天津市制浆造纸重点实验室，天津，300457）
摘 要：采用一种淀粉基固着剂——低分子质量高取代度阳离子淀粉（LHCS）对漂白化学热磨机械浆（BCTMP）进行预处理，通过紫外可见光谱法测量双三嗪氨基二苯乙烯荧光增白剂（FWA）、甲基紫（MV）显白剂、聚酰胺多胺环氧氯丙烷湿强树脂（PAE）、阳离子淀粉增干强剂（DSA-CS）、烷基烯酮二聚体施胶剂（AKD）和阳离子聚丙烯酰胺（CPAM）在BCTMP纤维上的吸附量及吸附率。结果表明，LHCS预处理可在一定程度上提高这些助剂在BCTMP纤维上的吸附，从而使它们的作用效果得到明显提升。
关键词：淀粉基固着剂；BCTMP；预处理；吸附
Improving the Adsorption of Wet End Chemicals onto BCTMP by LHCS Pretreatment
LUO Ling-zhi WANG Li-jun* ZHAO Jian XU Bin-bin
（Tianjin Key Lab of Pulp & Paper, Tianjin University of Science & Technology, Tianjin, 300457）
(*E-mail: wangchem@tust.edu.cn)
Abstract: A starch-based fixing agent ─ low molecular weight and high cationic substitute degree starch (LHCS) was used to pretreat a bleached chemithermomechanical pulp (BCTMP). The changes of the adsorption amounts and adsorption efficiencies of various wet-end additives onto the BCTMP fibers were investigated using UV-visible spectroscopy. The additives included a fluorescence whitening agent (FWA), a methyl violet (MV), a polyaminopolyamine epichlorhydrin (PAE) wet strengthening agent, a cationic starch dry strengthening agent (DSA-CS), an alkyl ketene dimmer (AKD) sizing agent and a cationic polyacrylamide (CPAM) retention agent. The results showed that the adsorption amounts and the adsorption efficiencies of the above chemicals can be improved to different degrees by the LHCS pretreatment, and the improved adsorptions can improve their corresponding functions. In summary, the LHCS is an efficient agent in improving the efficiency of wet-end chemicals in papermaking with high-yield pulps.
Key words: starch-based fixing agent; BCTMP; pretreatment; adsorption
聚乙二醇改性三聚氰胺甲醛树脂对汽车空气滤纸性能的影响
唐立生 刘文波
（东北林业大学生物质材料与技术教育部重点实验室，黑龙江哈尔滨，150040）
摘 要：采用聚乙二醇对三聚氰胺甲醛树脂进行改性，改性后的树脂用作交联剂添加到苯丙乳液中，并对汽车工业滤纸原纸进行浸渍加工处理。通过研究聚乙二醇(P)、三聚氰胺(M)、甲醛(F)的不同配比、树脂添加量及固化pH值，探讨了其作为乳液交联剂对汽车工业空气滤纸的抗张强度、耐破度、耐水性、透气度的影响。实验结果表明，当P与M的摩尔比为0.32，F与M-MP的摩尔比为2.8，改性树脂添加量为苯丙乳液固含量的4%，固化pH值为6 ~ 7时，汽车工业空气滤纸的综合性能最佳(苯丙乳液的上胶量为25%)。当pH值为6时,滤纸的抗张强度为4.51 kN/m，耐破度为340 kPa，耐水性为39.4min，透气度为334 L/(m2·s)。
关键词：聚乙二醇；三聚氰胺甲醛树脂；汽车工业空气；滤纸；浸渍树脂
Influence of Melamine Formaldehyde Resin Modified with Polyethylene Glycol on Performance of Automobile Air Filter Paper
TANG Li-sheng LIU Wen-bo*
(Key Lab of Bio-based Material Science and Technology of Ministry of Education,Northeast Forestry University, Harbin, Heilongjiang Province, 150040)
(* E-mail: hljlwbo@163.com)
Abstract: In order to manufacture the automobile air filter paper, the base filter paper was impregnated with styrene-acrylic latex containing the cross-linking agent of melamine formaldehyde resin which was modified with polyethylene glycol (PEG). The influence of various proportion of PEG (P), melamine (M) and formaldehyde (F), resin dose, and curing pH value on tensile strength, burst strength, water-resistance and air permeability of automobile air filter paper were investigated. The result showed that the optimum conditions were as follows: molar ratio of P/M 0.32, molar ratio of F/(M-MP) 2.8, dose of modified resin 4% on styrene-acrylic latex solid content, and curing pH value 6 to 7 (impregnated amount of styrene-acrylic latex 25%). The tensile strength of the filter paper was 4.51 kN/m, burst strength was 340 kPa, water-resistance was 39.4 min, and air permeability was 334 L/(m2·s) when pH value was 6.
Key words: polyethylene glycol； melamine formaldehyde resin； filter paper； impregnating resin
HACCP体系在食品包装纸及其制品生产中的应用
王玉峰1,2,3 陈克复1,2 石葆莹3
（1.华南理工大学制浆造纸工程国家重点实验室，广东广州，510640；2.华南理工大学广东省造纸技术与装备公共实验室，广东广州，510640；3.广东省东莞市质量监督检测中心国家纸制品质量监督检验中心，广东东莞，523808）
摘 要：探讨了危害分析与关键控制点（HACCP，Hazard Analysis and Critical Control Point）体系在食品包装纸及其制品生产中的应用，根据HACCP的基本原理，对食品包装纸及其制品的生产流程进行了分析，找出了危害因素，确定了关键控制点和关键限值，并对关键控制点的监控和纠偏措施进行了讨论。
关键词：HACCP体系；食品包装纸及其制品；食品安全
Application of HACCP in Production of Food Packaging Paper and Its Products
WANG Yu-feng1,2,3* CHEN Ke-fu1,2 SHI Bao-ying3
(1. State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640; 2. Guangdong Public Lab of Paper Technology and Equipment, South China University of Technology, Guangzhou, Guangdong Province, 510640; 3. National Paper Products Quality Supervision Inspection Center, Guangdong Dongguan Quality Supervision Testing Center, Dongguan, Guangdong Province, 523808)
(*E-mail:ppcwyf@yahoo.com.cn)
Abstract: Food packaging paper and its products are the common food packaging material, it will directly affect the safety of food. In order to reduce the contamination risk of the food caused by the packaging paper and its products, application of HACCP in the production of food packaging paper and its products was discussed. According to the basic principle of HACCP, the production processes of food packaging paper and its products were analyzed, hazard factors were found, critical control points and critical limits were defined, and the monitoring of critical control points and the corrective methods were discussed.
Key words: HACCP; food packaging paper; product; food safety
P-RC APMP制浆废水沸腾传热系数的研究
霍晓东 刘秋娟 贾原媛
（天津科技大学天津市制浆造纸重点实验室，天津，300457）
摘 要：研究了P-RC APMP制浆废水的沸腾传热系数，实验在强制循环蒸发器上进行，考察了热通量、流体流速、流体浓度对P-RC APMP制浆废水沸腾传热系数的影响。结果表明，在一定的热通量下，随着流体流速的增加，P-RC APMP制浆废水沸腾传热系数增加；浓度不同，流速对传热系数的影响不同，浓度越大，流速对传热系数的影响越大。
关键词：P-RC APMP制浆废水；沸腾传热系数；热通量；流速
Study on Boiling Heat Transfer Coefficient of P-RC APMP Waste Water
HUO Xiao-dong LIU Qiu-juan* JIA Yuan-yuan
(Tianjin Key Lab of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457)
（*E-mail:liuqiujuan@tust.edu.cn)
Abstract: The boiling heat transfer coefficient of P-RC APMP waste water was studied in this paper.The experiment was carried out using the forced circulation evaporator. The influence of heat flux, velocity of flow and the solid content of the waste water on boiling heat transfer coefficient was investigated. The results showed that under a certain heat flux, the boiling heat transfer coefficient of P-RC APMP waste water increases as the velocity of flow increases. The influence of flow velocity on the boiling heat transfer coefficient varies with the solid content of P-RC APMP waste water, it becomes greater as the solid content increases.
Key words: P-RC APMP waste water; boiling heat transfer coefficient; heat flux; flow velocity
棉秆造纸废水二沉池出水的处理工艺设计及运行效果
苗飞 庞金钊 刘忠 杨宗政 袁青彬
（天津科技大学,天津,300457）
摘 要：采用“二次混凝（又名梯级混凝）和生物活性炭”联合工艺处理棉秆造纸废水的二沉池出水。结果表明，梯级混凝段,在实验室最佳投药量的基础上，一级混凝对原水COD和色度的去除率分别为30%和28%；二级混凝对COD和色度的去除率分别为60%和70%；生物活性炭段对梯级混凝段出水COD和色度的去除率分别达到50%和70%。生物活性炭段出水完全能满足该厂作为回用洗浆水的要求。
关键词：棉秆造纸；废水；梯级混凝；生物活性炭
Treatment of Effluent from Second Sedimentation Pond of Cotton Stalk Papermaking Wastewater Treatment
MIAO Fei* PANG Jin-zhao LIU Zhong YANG Zong-zheng YUAN Qing-bin
(Tianjin University of Science & Technology, Tianjin, 300222)
（*E-mail: miaofei1981@yahoo.com.cn）
Abstract: The combined second coagulation cascade and flocculation and biological activated carbon process for treatment of the effluent from the second sedimentation pond of waste water treatment of cotton stalk papermaking was tested. The effluent from second pond was 50 t/d, the feasibility of the process was studied by investigating the removal of COD and chromaticity. Test coagulation cascade results showed that with optimal chemicals dosages, the removals of COD and chromaticity were 30% and 28% for coagulation treatment and 60% and 70% for coagu-floculation treatment respectively. Removals of COD and chromaticity were 50% and 70% respectively by biological activated carbon treatment. Biological activated carbon treated water can completely meet the requirement of washing even can satisfy the paper machine operation.
Key words: papermaking with cotton pole； step coagulation； biological activated carbon
聚合氯化铝和聚合氯化铁处理造纸废水的效果比较
陈凌
（嘉兴职业技术学院生物与环境分院，浙江嘉兴，314036）
摘 要：用聚合氯化铝（PAC）和聚合氯化铁（PFC）对造纸废水进行混凝实验，通过它们在不同pH值和投加量的情况下，对废水色度、CODCr的去除率进行分析，以选择最佳混凝剂及混凝条件。实验结果表明，在pH值为8，混凝剂投加量为30 mg/L时，用PFC混凝剂处理造纸废水比用PAC效果好且更经济，其脱色率达到90%，CODCr去除率可达43%。
关键词：造纸废水；混凝；聚合氯化铝；聚合氯化铁
Efficiency Comparison of Pulping and Papermaking Effluent Treatment by Using Polyaluminum Chloride and Polyferric Chloride
CHEN Ling
(Jiaxing Vocational Technical College Biological and Environmental Branch，Jiaxing, Zhejiang Province, 314036)
（E-mail：chenlingjx@163.com）
Abstract: The efficiencies of coagulation treatment of pulping and papermaking effluent by using PAC and PFC were compared. Influence of the factors such as the amount of coagulants and pH value on the flocculation effect was discussed. The optimum process conditions were obtained by analyzing the results of different coagulation in terms of the decoloration rate and the removal rate of CODCr，The experimental results showed that：When pH value is 8 and dosage of the coagulant is 30mg/L pulping and papermaking effluent treatment using PFC coagulant is more effective and less expensive than PAC, the resulting 90% decoloration rate and 43% removal rate of CODCr.
Key words: pulp and papermaking effluent; coagulation; PAC; PFC
白泥回收转窑性能的影响因素及其改进技术
刘超锋1 胡兴杰2 高利霞3 周子帮4 苏卫彩5
（1.郑州轻工业学院河南省表界面科学重点实验室，河南郑州，450002；2.中国石化集团南京化学工业有限公司化工机械厂，江苏南京，210048；3.南京德邦金属装备工程有限公司，江苏南京，211155；4.洛阳三隆安装检修有限公司海南项目部，海南洋浦，578101；5.河南晋开投资控股集团，河南开封，475002）
摘 要：简要介绍了白泥回收转窑性能的要求，分析了白泥回收转窑运行性能所涉及的燃料、入窑白泥和转窑的结构因素。分别从白泥回收转窑的运行操作改进和技术改进角度讨论了满足白泥回收转窑性能要求的方法、措施及其效果。对白泥回收转窑的设计、制造安装、日常维护及技术改造提出了建议。
关键词：白泥回收转窑；白泥；燃料;技术改造
Factors Effecting Operation Performance of Rotary Kiln for Recovering Lime
LIU Chao-feng1* HU Xing-jie2 GAO Li-Xia3 ZHOU Zi-bang4 SU Wei-cai5
(1. Zhengzhou University of Light Industry， Henan Provincial Key Laboratory of Surface & Interface Science， Zhengzhou， Henan Province， 450002；2. Nanjing Chemical Industry Co. Ltd. Chemical Machinery Plant of China Petrochemical Group, Nanjing, Jiangsu Province, 210048; 3. Metal Equipment Engineering Co. Ltd. of Nanjing duble, Nanjing, Jiangsu Province, 211155; 4. Installation Maintenance Co. Ltd. Luoyang Sanlong, yangpu, Hainan Province, 578101; 5. Henan Jinkai Investment Holdings Group, Kaifeng, Henan Province, 475002)
(*E-mail:zhryng@yahoo.com.cn)
Abstract: Technical and economic requirements of a rotary kiln for recovering lime were introduced. Factors including fuel, lime mud from chemical recovery plant and structure of rotary kiln were analyzed. Suggestions about design, installation, routine maintenance and rebuild of lime kiln were proposed.
Key words: lime kiln; performance; control
Dual CTM溶解浆双置换蒸煮技术
景罗荣
（杰维瑞典公司北京代表处，北京，100020）
摘 要：介绍了Dual CTM双置换蒸煮溶解浆的生产工艺及其特点。
关键词：Dual CTM双置换蒸煮；溶解浆；节能环保
Dual CTM Dual Displacement Cooling Technology for Dissolving Pulp Production
JING Luo-rong
(GL&V Inc, Beijing office, Beijing, 100020)
（E-mail:lawrance_jing@126.com）
Abstract: Dual CTM dual displacement cooling technology for dissolving pulp production was introduced in the paper.
Key words: Dual CTM dual displacement cooling; dissolving pulp; energy saving and environmentally friendly
VPSA变压吸附制氧技术在制浆过程中的应用
胡光勇
（云南云景林纸股份有限公司，云南普洱，666400）
摘 要：氧漂白是清洁制浆的必需工艺。VPSA变压吸附制氧控制系统操作方便，维护简单，投资少，运行费用低，在国内越来越多的纸浆企业得以广泛应用。
关键词：氧漂白；变压吸附制氧控制系统；清洁制浆
Application of VPSA Oxygen Generation in the Fiber Lines
HU Guang-yong
(Yunnan Yunjing Forest & Paper Co., Ltd., Puer, Yunnan Province, 666400)
（E-mail:huguangyong38@sina.com）
Abstract: The oxygen generated by VPSA process has been widely used in oxygen delignification in domestic fiber lines thanks to its low investment, low operation cost, easy maintenance and convenient control, the application of VPSA oxygen generation in a fiber line was introduced.
Key words: oxygen delignification; control of VPSA system; environment protection
水解酸化在制浆造纸废水处理中的应用
晏令军1 蒋立人2
（1.福陆（中国）工程建设有限公司，上海，201103；2.上海环境工程设计研究院有限公司，上海，200071）
摘 要：针对不同原料不同工艺所产生制浆造纸废水的特点，通过对收集到的实验及实际运行数据的分析，总结出水解酸化工艺应用于制浆造纸废水处理中设计及运行管理的一些参数和经验。
关键词：水解酸化；制浆造纸废水；CODCr去除率；废水处理
Study and Application of Hydrolysis and Acidification Process in Waste Water Treatment of Pulp and Paper Industry
YAN Ling-jun1* JIANG Li-ren2
(1. Fluor (China) Engineering and Construction Co. Ltd., Shanghai, 201103；2. Shanghai Design & Research Institute for Environment Co. Ltd., Shanghai, 200071）
（*E-mail:leanne2008@sina.com）
Abstract: Because of low biodegradability of paper industry waste water, hydrolysis and acidification process is widely applied in paper industry waste water treatment. Aiming at different waste water from different material sources and processes, through experiment and analysis of the collected operation data, some engineering data and operating experiences for application of hydrolysis and acidification process in waste water treatment of pulp and paper industry are summarized.
Key words: hydrolysis and acidification; pulp and paper industry waste water; CODCr removal rate; water treatment
新型卧式浸渍干燥生产线调偏系统及其控制
罗生梅1,2 濮晓波2 杨德宇2
(1.兰州理工大学数字制造技术与应用省部共建教育部重点实验室，甘肃兰州，730050；2.兰州理工大学机电工程学院，甘肃兰州，730050)
摘 要：对现有卧式浸渍干燥生产线调偏系统的调偏机理进行了分析，提出了优化的基于PLC控制的调偏系统。运行结果表明，该系统稳定可靠，纠偏效果好。
关键词：浸渍；干燥；调偏；PLC
New Type of Adjustment System for Paper Drying Line of Horizontal Impregnation and Its Control
LUO Sheng-mei1,2 PU Xiao-bo2,* YANG De-yu2
(1. Key Lab of Digital Manufacturing Technology and Application, The Ministry of Education,
Lanzhou University of Technology, Lanzhou, Gansu Province, 730050; 2. School of Mechanical and Electronical Engineering, Lanzhou University of Technology, Lanzhou, Gansu Province,730050)
(*E-mail:771800519@qq.com)
Abstract: An optimized adjustment system based on PLC control was proposed through the analysis of the old adjustment system of the paper drying line of horizontal impregnation. The new system, which has be running more than a year, has good adjustment effect and works reliably, and can be the reference for the mills with paper drying line of horizontal impregnation.
Key words: impregnation; drying; adjustment; PLC
我国造纸工业的能耗状况和节能降耗措施
李威灵
（中国制浆造纸硏究院，北京，100061）
摘 要：简要对比了我国制浆造纸工业能耗水平与国际先进水平的差距，分别从结构调整、节能技术和节能管理等方面提出了节能降耗的主要措施。
关键词：节能降耗；制浆造纸；结构调整；节能技术；节能管理
Energy Consumption Status and Energy Saving Measurement of China’s Paper Industry
LI Wei-ling
(China National Pulp and Paper Research Institute, China Technical Association of Paper Industry，Beijing, 100061)
（E-mail:zhanggong3658686@126.com）
Abstract: The energy consumption of paper industry in China and the developed countries was compared simply. The energy saving measurements from the aspects of structure adjustment, energy saving technology and energy saving management were discussed.
Key words: energy saving and consumption reduction; pulp and paper; structure adjustment; energy saving technology; energy saving management
降解木素白腐菌产漆酶的研究进展
傅恺 付时雨 詹怀宇
（华南理工大学制浆造纸工程国家重点实验室，广东广州，510640）
摘 要：综述了近年来国内外对于白腐菌产漆酶的研究进展，对液体和固体发酵提高漆酶产量的技术和方法进行了讨论和评述，并对今后的研究工作提出了展望。
关键词：白腐菌；漆酶；液体发酵；固体发酵；有机废料；发酵罐
Research Progress of Laccase Production by Lignin-degrading White Rot Fungi
FU Kai FU Shi-yu* ZHAN Huai-yu
(State Key Lab of Pulp ＆ Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640)
(*E-mail: shyfu@scut.edu.cn)
Abstract: Laccase is one of the ligninolytic enzymes secreted by white rot fungus which is the most important microorganism involved in degrading lignin in nature. Application of laccase to pulp bleaching is an attractive alternative to decrease chemicals demand and wastewater pollution. Therefore, the production of laccase in high yield has received much attention from researchers in past decades. The research progress of laccase production from white rot fungi in recent years is overviewed in this paper. Several effective methods to improve laccase yield in submerged and solid-state fermentation are mainly discussed, and the prospect of such research field in the future is also presented.
Key words: white-rot fungi; laccase; submerged fermentation; solid-state fermentation; organic waste; fermentor
打浆磨片材质与齿型的优化
袁麟1 蒋小军2
（1.沈阳思特雷斯纸业有限责任公司，辽宁沈阳，110027；2.南通华严铸造有限公司，江苏南通，226403）
摘 要：介绍了某纸业公司与南通华严磨片研究中心共同探索，优化双盘磨浆机磨片的齿型、材质及打浆工艺的情况，优化后，改善了纤维的结合力，成纸物理性能提高。
关键词：磨片材质；齿型；分丝帚化；打浆度
Upgrading the Physical Strength of Metal Interleaving Paper by Optimizing Plate Material and Pattern of the Refiner
YUAN Lin1* JIANG Xiao-jun2
(1.Shenyang Stainless Paper Co.,Ltd., Shenyang, Liaoning Province,110027; 2.Nantong Huayan Refiner Plate Co.,Ltd., Nantong, Jiangsu Province, 226403)
（*E-mail: 13555772338@163.com）
Abstract: This paper introduces the experience of optimizing the material, the plate pattern of the double disc refiner and refining technology to improve the bonding ability of the fibers therefore to upgrade the physical strength of the stainless steel interleaving paper.
Key words: refiner material; plate pattern; fibrillation; beating degree
玉米秸皮AS-AQ浆全无氯漂白研究
孟毅 张世杰 张运展
（大连工业大学，辽宁大连，116034）
摘 要：对玉米秸皮的AS-AQ浆进行了全无氯漂白研究。结果表明，经过酸性DTPA预处理的AS-AQ浆，经H2O2强化氧漂，可使浆的白度达到77.4%。在Op漂白之后进行H2O2漂白，浆的白度可达81.4%；Op之后进行连二亚硫酸钠漂白，可使浆的白度达到80.6%。采用OpPY漂白程序，浆的白度可提高7.8个百分点，漂白效果好于OpYP漂白程序。
关键词：玉米秸皮AS-AQ浆；漂白；TCF；H2O2强化氧漂
TCF Bleaching of AS-AQ Pulp of Corn Stalk Cuticle
MENG Yi* ZHANG Shi-jie ZHANG Yun-zhan
(Dalian Polytechnic University, Dalian, Liaoning Province, 116034)
（*E-mail:ymeng0224@foxmail.com）
Abstract: This paper discussed the TCF bleaching for AS-AQ pulp of corn stalk cuticle. The results showed that the brightness of AS-AQ pulp after pretreatment of acid DTPA and Op stage reaches 77.4% ISO. The brightness of the pulp reaches 81.4% ISO after further bleaching with hydrogen peroxide bleaching.The brightness of the pulp from Op stage and further bleaching with sodium dithionite reaches 80.6% ISO. The brightness of the pulp can increase by 7.8 percentage points through the bleaching process of Op-P-Y, and its bleaching effect is better than the bleaching process of Op-Y-P.
Key words: corn stalk cuticle; AS-AQ pulp; TCF bleaching; strengthening oxygen bleaching by H2O2 | 
