力量锻炼在控制体重中的作用机理初探

力量与力量耐力是健康体适能的重要组成成分。研究表明，力量锻炼在控制体重中的作用机理主要是通过以下两种途径实现的：一是增加安静时的能量代谢率；二是增加脂肪氧化。建议人们，要获得最佳健康并有效控制体重，应将有氧运动与力量锻炼相结合。     

纳米——ZnFe_2O_4/SiO_2上环己烷催化氧化反应的影响因素

介绍了用纳米———ZnFe2 O4/SiO2 半导体材料作光催化剂 ,用分子氧催化氧化环己烷的实验 ,根据目前所建立的半导体粒子光催化反应机理的模式 ,探讨了其反应机理 ,并进一步研究了水分子以及电子或空穴捕获剂对该反应的影响。     

木屑制取草酸新法

通过硫酸水解,将木屑中的纤维素转化为葡萄糖,在催化剂作用下,用硝酸将其氧化,制取了草酸.经研究,本法最佳配料比及工艺条件为:干木屑∶硫酸(50%)∶硝酸(65%)∶催化剂=30g∶30mL∶4mL∶0.03g,浸泡水解时间为4h以上,反应时间5h以上,反应温度控制在65～70℃.所得草酸纯度为97.5%,收率达50%.对产品理化数据指标及工艺环保措施进行了分析.     

好氧生物处理实验的研究

介绍了具有代表性的好氧生物处理的两个典型实验的方法,讨论了作为研究生阶段开设这两个实验的具体的实验内容以及最佳运行方案。     

甲烷氧化偶联催化剂的制备及表征

本文报道了一系列甲烷氧化偶联催化剂的制备过程及其催化性能,筛选出一个催化性能优良,又具有赣南特色的甲烷氧化偶联催化剂,其组成是Mn_2O_3—Na_3WO_4/SiO_2,代号W—34,并用XRD,BET,UV—DRS,EPR,LRS等方法对该催化剂进行了表征。结果表明,在最佳反应条件下,在W—34催化剂上甲烷转化率为36.8％,C_2烃收率达到22.9％。在该催化剂中,W是以Na_2WO_4形式存在,Mn则以Mn_2O_3形式存在,而SiO_2已由无定型构型转变成。一方石英构型。     

啤酒工业废水处理工艺进展及比较浅析

分析了啤酒工业废水的来源和性质特点,从厌氧、好氧生物处理两方面介绍了啤酒废水处理的主要技术及应用效果,并浅析了5种较成熟的啤酒废水处理工艺流程 最后,对未来的治理方向提出了几点建议     

Degradation of chlorophenol by in-situ electrochemically generated oxidant

INTRODUCTION With the development of industry, more and more pollutants are discharged into environment, among them, phenolic wastes are typical contami-nants considered to be hazardous and top priority toxic pollutants listed by the USEPA. They are toxic even at low concentration. Due to their biorefractory, bioaccumulation and carcinogenic potential, the treatment of these contaminants is very important in environmental protection. Various technologies and processes have been tried …     

Degradation kinetics and mechanisms of phenol in photo-Fenton process

Phenol degradation in photochemically enhanced Fenton process was investigated in this work. UV-VIS spectra of phenol degradation showed the difference between photo-Fenton process and UV/H2O2, which is a typical hydroxyl radical process. A possible pathway diagram for phenol degradation in photo-Fenton process was proposed, and a mathematical model for chemical oxygen demand (COD) removal was developed. Operating parameters such as dosage of H2O2 and ferrous ions, pH, suitable carrier gas were found to impact the removal of COD significantly. The results and analysis of kinetic parameters calculated from the kinetic model showed that complex degradation of phenol was the main pathway for removal of COD; while hydroxyl radicals acted weakly in the photo-Fenton degradation of phenol.     

沼气发酵处理城市生活垃圾试验

采用沼气发酵的方法，对城市生活垃圾进行了发酵处理．对环境保护、能源利用、预防疾病等方面都有积极作用．     

Dechlorination by combined electrochemical reduction and oxidation

INTRODUCTION Chlorinated phenols compounds used widely in industry were intentionally or inadvertently released into environment in large quantities. These chlorin-ated aromatic compounds have strong resistance to physical, chemical and biological treatments and have been listed as a priority pollutant by the U.S. Envi-ronmental Protection Agency (Lin and Tseng, 1999). Wastewater containing chlorophenols has malodor-ous odor, high toxicity, bioaccumulation and car-cinogenic potential. …