微波能在中药加工中的应用

阐述了微波能烘干、灭菌在中药加工中的实例和一系列优点。     

浅谈医院污水处理

概括并举例介绍了医院污水处理的必要性。结合某医院污水处理工程设计,浅述采用膜-生物反应器法对综合医院的医疗污水进行处理的优越性。     

食品加工新型杀菌技术研究进展

食品杀菌是食品加工过程不可或缺的环节之一。本文介绍了食品工业中新型杀菌技术和设备的研究进展,重点阐述了超高压杀菌、微波杀菌、高压脉冲电场杀菌、辐照杀菌、脉冲强光杀菌等新型杀菌技术与装备的研究发展进程,并扼要地介绍了相关技术特点。新型杀菌技术特别是冷杀菌技术可以更好地保持食品品质和风味,保证食品质量安全。     

医疗废物消毒设备的动平衡应用与试验

运转平衡是一个影响机械设备工作质量和设备寿命的重要指标,应该在振幅允许范围内最大的提高设备工作效率.笔者以医疗废物消毒设备为研究对象来讨论旋转平衡问题,以确定最佳的旋转圈数.     

The Depth of Penetration of Radiation Oxidation in the Presence of Stabilizers

Abstract

The disposable syringes manufactured from low pressure polyethylene (LPPE) and polypropylene (PP) are widely used in the USSR. Irradiation by ionizing radiation is one of the most prospective methods of sterilizing the disposable syringes. Problems in developing the polyethylene and polypropylene formulations that remain stable under the action of sterilizing doses of radiation and subsequent prolong storing are reviewed.     

现代静电技术在发酵品生产中的应用

综述了利用现代静电技术分别对新酒和新醋进行人工催陈,对生酱油进行灭菌处理,对酿酒酵母菌进行人工诱变。并对今后的应用提出建议。     

臭氧特性及其杀灭耐热菌的应用研究

研究了臭氧在水中的溶解特性及对物体表面耐酸耐热菌的杀菌效果,以载玻片作为耐酸耐热菌的载体,采用通气悬液杀菌方式进行了单因素以及正交实验。研究结果表明：臭氧的溶解性和杀菌能力受臭氧投加量、水温、水的pH值、以及水质的影响,正交实验显示臭氧投加量为主要影响因素。     

在改性气调包装中结合新的杀菌技术

本文主要介绍了在改性气调包装中结合紫外线杀菌和臭氧杀菌两种新的杀菌技术,对两种杀菌技术的机理、特点以及影响因素作了详细描述。并且展望了其良好的发展趋势,为气调包装在我国的大力发展提供了有利的参考价值。     

锌-铕抗菌材料的制备

通过溶胶-凝胶法制备出Zn-Eu抗菌白炭黑,该产品是一种含有稀土Eu3+的新型无机抗菌材料,与只单载Zn2+的抗菌白炭黑相比,该新型无机抗菌材料的抗菌性能更加显著.通过单因素实验探究Zn2+浓度、Eu3+浓度和反应时间对产品杀菌率的影响,得到最佳制备方案:Zn2+浓度为0.8 mol·L-1、Eu3+浓度0.005 mol·L-1、反应时间1 h.最佳条件下制备得到抗菌性能优良的Zn-Eu抗菌白炭黑,并对其进行FTIR、SEM和ICP-OES表征.FTIR结果显示,Zn2+和Eu3+加入后没有明显改变载体白炭黑的基本结构.SEM和ICP-OES分析表明,Zn-Eu抗菌白炭黑粒径较小,分散性较好并且Zn2+和Eu3+均担载在了载体白炭黑上.     

Experimental Research on the Sterilization of Escherichia Coli and Bacillus Subtilis in Drinking Water by Dielectric Barrier Discharge

The bactericidal effect on the representative type of Gram-negative Escherichia coli(E.coli) and Gram-positive Bacillus subtilis in drinking water was investigated in this paper by using dielectric barrier discharge(DBD) advanced oxidation technology.The sterilizing rates under different conditions of reaction time t,input voltage V,p H value,and initial concentration of bacteria C_0 were investigated to figure out the optimum sterilization conditions.Our observations and comparisons of cell morphology alteration by scanning electron microscopy and transmission electron microscopy revealed the sterilization mechanisms.The results showed that the sterilizing rate increased obviously with the extension of reaction time t and the rise of input voltage V.The optimal sterilization effect was achieved when the p H value was 7.1.As the initial concentration of bacteria rose,the sterilizing rate decreased.When the input voltage was 2.2 k V and the initial concentration of bacteria was relatively low,the sterilizing rate almost reached 100% after a certain treatment time in neutral aqueous solution.The reasons for the great damage of cell structure and the killing of bacteria are the oxidation of O_3,OH and the accumulation of active species produced by DBD.The article provides a certain theoretical and experimental basis for DBD application in water pollution treatment.