工业循环冷却水处理药剂阻垢性能实验的探讨

通过实验对比,得出实验温度、实验时间及浓缩倍数对水处理药剂阻垢率的影响,筛选出显著影响因素,用于指导阻垢剂的选择及性能的鉴定。     

Surface Modification of Reinforcement Fibers for Composites by Acid Treatments

In this study, we investigated the surface modification of reinforcement fibers for composites by acid treatments, including PBO fiber, Kevlar fiber and carbon fiber. The corresponding changes in the surface free energy components were carefully evaluated using a Cahn dynamic contact angle analysis system. In addition, the fiber's surface elemental composition and topography were studied using X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The results showed that the surface nitrogen-to-carbon (N/C) and oxygen-to-carbon (O/C) ratios were significantly increased after the treatments. The surface free energy of PBO fiber was increased from 43.3 mJ/m² to 58.5 mJ/m² or by 35% with 60 wt% methanesulfonic acid solution treatment for 36 h. However, the increase with 60 wt% nitric acid solution was only by 14% (to 49.5 mJ/m²) for the same treatment time.     

正交试验设计及其在电厂化学中的应用

在火力发电厂化学的生产和科研中，为了改革旧工艺和试验新方法，经常要做许多多因素试验。如何安排多因素试验，是一个值得研究的问题。正交试验设计是研究和处理多因素试验的一种科学方法，已在火力发电厂化学中获得了有效的应用。文中结合国内外的有关资料及作者在试验设计中的一点体会，论术字正交试验设计的原理和方法，以及其在电厂化学研究中应用的诸多方面，并指出了目前应用中存在的不足和解决方法。     

改性淀粉絮凝剂的开发与应用

淀粉来源广，价格低廉，产物可完全生物降解，因此淀粉改性絮凝剂的研究发展迅速。淀粉改性絮凝剂包括非离子型、阴离子型和阳离子型，文中综述了近十年来我国在这几方面的研究开发与应用方面的进展，并对今后进一步的研究提出了一些建议，建议今后加强实际工艺的研究，充分考虑到影响絮凝剂对废水处理效果的因素，开发出更加有效的絮凝剂。     

Catalytic ozonation of natural organic matter on alumina

The paper aims to show the potential of catalytic ozonation in the presence of alumina for the removal of natural organic mater from drinking water. An investigation into the efficiency of catalytic ozonation, ozonation by-products formation and their biodegradability was the main goal of the paper. Characterisation of fresh and worn alumina was also conducted. The results clearly indicated the high activity of alumina over a long period of time, which is crucial in water treatment technology. The application of alumina to the ozonation system doubled the efficiency of NOM removal from water when compared to ozonation alone. Furthermore, catalytic ozonation resulted in lower by-products and biodegradable organic carbon formation.     

CASS法处理含盐废水的研究

采用鱼品加工厂生产废水掺一定比例的海水作为试验用水,通过含盐量的不断增加研究系统的耐盐性,通过含盐量的降低和升高研究系统的抗盐度波动性。试验表明,当Cl-的质量浓度<6300mg/L时,CASS系统可正常运行;当Cl-的质量浓度<4500mg/L时,对于Cl-质量浓度梯度为3600mg/L的冲击,系统可以在1个运行周期内恢复正常运行。     

污水处理厂污泥于陶粒生产中的综合利用

主要从市场、工艺、经济和社会效益方面，对污水处理厂污泥于陶粒生产中的综合利用问题进行了论述。     

膜生物反应器处理涂料工厂废水

介绍了采用膜生物反应器处理涂料工厂废水的设计和运行情况。实践证明，膜生物反应器对经混凝过滤预处理后的出水中的COD、SS的平均去除率分别为91％、85％，且具有流程简单、易于管理、运行效率高等优点。     

生物氧化法处理含油脂废水

该文介绍油脂分解菌装置处理含油脂废水的分解原理及实例。     

PVC表面处理剂的研制

介绍了几种表面处理剂对PVC革剥离强度的影响 ,从中选择出最佳表面处理剂A ,并把处理剂A干燥时间对剥离强度的影响作一讨论 ,确定适宜的干燥时间