REDUCING FIBER LOSS IN LABORATORY- AND MILL-SCALE FLOTATION DEINKING USING SURFACTANT SPRAY TECHNOLO

来源 :天津科技大学学报 | 被引量 : 0次 | 上传用户:angelcaoxian
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
As the cost of quality waste paper continues to escalate in response to an increased global demand for the finite resource, loss of saleable fiber within flotation rejects becomes both environmentally and economically unacceptable. The ability of surfactant spray technology to reduce yield loss without detriment to pulp brightness gains has been demonstrated during both laboratory- and pilot-scale flotation deinking investigations. This paper documents the successful transfer of this technology to a single flotation unit within the deinking line of a mill producing newsprint from 100% secondary fiber. Initial results suggest that the loss of fiber across the unit may be reduced by more than 50%without obvious detriment to final pulp quality.
其他文献
南京国际展览中心2层楼面尺寸为270m×118.5m,梁内施加有粘结预应力,板内施加无粘结预应力,不设伸缩缝。根据施工阶段梁板混凝土内部温度、温度应力以及施加预应力后混凝土预压
给出了动物模型的智能体设计和解决方案,扩展了智能体系统的概念.应用Swarm智能体系统和Kohonen网络,给出了一个将许多地貌、植物和动模型结合起来的swarm解决方案.
针对温室气体CH4和CO2化学利用,提出介质阻挡气体放电等离子体化学转化方法,将CH4,CO2直接转化为高碳烃,并副产一部分合成气.实验表明,介质阻挡气体放电CH4和CO2反应烃类产物
我国是一个有着丰富旅游资源的国家,各个地方政府充分重视本地的旅游资源,开发和保护各个旅游景点,完善旅游管理。宗教及其文化是一种复合型的旅游资源,它可以产生经济的、社
提出一种确定复合材料层合板铺设形式的新的无损检测方法.采用垂直入射的超声纵波进行铺层界面的C扫描或层板全波形B扫描,然后从结构缺陷的反射波中提取纤维方向信息.发现铺
本文报道了一个为电容式微加速度计传感器信号处理而设计的全集成化的BD031 CMOS MEM信号处理电路.电路设计采用了对信号的差分电容采样方式和过采样技术、前置采样放大器高
探讨了以脱脂奶粉、全脂鲜牛奶及某些天然风味成分为原料生产低脂酸牛奶的加工工艺.确定最佳试验配方:35%的全脂牛奶、7.5%的脱脂奶粉、7.5%的蔗糖、0.5%的稳定剂、0.03%卵磷
In this paper, modal colloidal substances (MCS)were employed to study the effects of in-process colloid on the properties of newsprint. The adsorption of MCS on
水声信号处理中研究的对象是声场,基于传统的声压传感器阵的水声信号处理只拾取声场的声压,而具有方向敏感性的矢量传感器测得声压的同时,可以得到质点振速等矢量信号,即同时
In this paper it was studied that these dosage effects of CPAM, cationic starch、boron modified silica sol (BMS), Al2(SO4)3, pH value and electrolyte on the ret