膜分离技术在电镀废水中的应用——膜技术是电镀废水深度处理回用的发展方向

膜分离技术是一种高效、低能耗和易操作的液体分离技术,同传统的水处理方法相比,其能够实现电镀废水的循环利用和对有用物质的回收。本文主要介绍了膜分离技术处理工艺在电镀废水中的应用,指出膜技术是电镀废水深度处理回用的发展方向。     

膜分离技术在石油化工领域中的应用

通过分析气体膜分离、渗透汽化膜分离和膜生物反应器等膜技术在石化领域中的应用 ,提出应开发高性能的膜材料和膜、膜装置及过程优化 ,以及膜分离与其他分离技术耦合的必要性。     

膜技术在生物技术中的应用及其发展趋势

随着膜技术的不断开发和应用范围的逐渐扩大,膜技术在迅速发展的生物技术领域中的应用已取得不少令人振奋的成果。现代的生物技术需要在细胞培养、蛋白质分禽、生物液体提纯和浓缩、无菌操作及其他生物化学方面采用与之匹配的高技术,以代替传统的过滤、结晶、离心、吸附、冷冻、蒸发和蒸馏等分离、精制和浓缩方法。正处兴旺发展和不断改进、完善的膜技术,特别是膜分离技术,因其设备结构简单,操作步骤简化,质量的迁移中无相变,是生物技术中的最佳选择方法。生物技术中引入膜技术以后,改     

全国轻工业膜分离技术应用研讨会将在青岛召开

为推动膜分离技术在轻工业领域的广泛应用，更好地以膜技术解决轻工业生产中的分离、浓缩、净化、除菌、保鲜等问题，用高新技术改造传统轻工业，加快支柱产业结构调整的步伐；为加快企业技术创新，节约能源、保护环境、提高企业整体效益，由中国膜工业协会和山东省一轻总会共同主办的“全国轻工业膜分离技术应用研讨会”将于１９９９年１０月在青岛召开．（１）会议主要内容围绕膜技术解决轻工业中果汁、饮料、饮用纯水、乳品、酒类、调味品、制糖、果蔬、酶制剂等的分离、净化、提纯、浓缩、保鲜、有用物质的回收和废水处理等议题，分别开…     

气体分离膜技术动向

气体分离膜技术动向膜分离技术以其无相变、省力节能和能提供紧凑的工艺而成为分离技术的重要手段。气体分离膜技术已应用于石化、化学、精密机械、食品等领域。高分子气体分离膜的开发包括膜材料和薄膜化技术的开发。高分子所具的物理特性决定了膜材料的特点，因此它的化...     

“第三届膜分离技术在冶金工业中应用研讨会”征文通知和第一轮会议通知

随着膜技术的不断发展,在冶金行业中的应用已涉及到采矿、选矿、冶炼、材料及加工等各专业领域。除在钢铁工业中应用外,膜技术的应用及试验研究已涉及到多种有色、稀有及放射性元素。应用的膜技术已覆盖DD、ED、EM、BP、EDI、RO、NF、UF、MF及MD与气体分离等多种膜分离技术领域。     

“第三届膜分离技术在冶金工业中应用研讨会”征文通知和第一轮会议通知

随着膜技术的不断发展,在冶金行业中的应用已涉及到采矿、选矿、冶炼、材料及加工等各专业领域．除在钢铁工业中应用外,膜技术的应用及试验研究已涉及到多种有色、稀有及放射性元素．应用的膜技术已覆盖DD、ED、EM、BP、EDI、RO、NF、UF、MF及MD与气体分离等多种膜分离技术领域．     

我国膜分离工业技术发展要点

<正>膜分离气体工业有关业内人士认为,我国膜分离气体工业科技发展主要有以下几个技术要点:(1)对在我国已工业化应用的膜技术,如微滤、超滤、反渗透和气体分离膜等,要加大开发力度,提高产品质量,形成规模效益。以解决膜材料和制膜技术为核心,突破复合反渗透膜的制备技术,使产品达到国际水平;进行行业     

后记

膜分离技术是近几十年来发展起来的一门多种学科交叉的新兴学科和高新技术．膜技术已广泛用于化工、石油化工、冶金、环保、食品饮料等许多领域，并成为21世纪最具有发展前景的六大新兴技术产业（信息电子、生物医药、环境保护、新材料、新能源和生态农业）．也是我国当前重点推动发展的20个战略性重点专项领域．     

膜分离技术在水处理中的应用现状及展望综述

膜技术是20世纪60年代后期迅速崛起的一种分离技术,在工业中有着广泛的应用。介绍膜分离技术的工作原理、特点和分类,阐述了膜分离技术在工业中,尤其是在水处理过程中的应用,并展望膜技术应用领域的发展趋势。     

The Research of Anti-Wear Properties of Organomolybdenum Compounds in the Engine Oils

A four-ball tester was used to evaluate the anti-wear performance of three kinds of organomolybdemun compounds in the engine oils, i. e., molybdenum dialkyldithiophosphate (MoDDP), molybdenum dialkyldithiocarbamate ( MoDTC), and sulphur and phosphorus freeorganomolybdeum (Molybdate). The results indicate that a low concentration of MoDDP doesn' t improve the anti-wear properties of the commercial engine oils, but a high concentration of MoDDP can obviously improve the anti-wear properties and the load-carrying capacity of the engine oils. MoDTC doesn' t improve the antiwear properties of the engine oils, but worsens the anti-wear properties of the oils. Signifi can timprove ment of frictional and wear characteristics is obtained with Molybdate added in the commercial engine oils and the formulated oils.     

Certification Institutions Expected to Update and Transfer Information on Present Standards

Standards are the basis for production enterprises to organize production, ex-factory inspection, trade (delivery) and technical exchanges, product certification, quality arbitration and supervision.……     

Certification Becomes Important for the I Quality; and Safety Supervision of the Chinese Liquor Sector

The end of 2007, over 200 unit products of more than 80 Chinese firms have passed the quality grade certification for liquor products. These products involve distilled spirits, beer, wine, yellow wine, fruit syrup wine and others, and cover over 80% of the national top-branded liquor products.……     

Deposition and Coating Properties on CVD Tungsten

Surface characterization and microstructure studies are performed on chemical vapor deposited (CVD) tungsten coating. There is about 2 μm thickness diffusion layer of tungsten in the molybdenum substrate. The thermal shock test shows tungsten coating has good adhesion with molybdenum substrate, but the elements of oxygen and carbon in the tungsten coating have the bad affection to the adhesion. The result of high-temperature diffusion experiment is the diffusion rate from molybdenum substrate to tungsten coating is faster.     

Analysis of marine hydrobiont lipid extracts as possible cryoprotective agents

We studied a combined effect of the cryoprotectants both of lipid and carbohydrate origin at the presence of DMSO or without it on cell viability and the RNA synthesis in the embryonic mollusc and echinoderm cell cultures obtained at different developmental stages. Cryoprotective properties of exogenous lipids correlated with their thermotropic behavior. Lipid extracts from marine hydrobiontes, which thermal transitions are characterized by relatively small part of calorimetric thermogram area lying at temperatures above 0 °C (6–18%), were found to possess a considerable cryoprotective activity. The results are discussed in relation to the prediction of the cryoprotective activity of lipid extracts for marine animal cells. In addition, it was found that marine invertebrate cells can be cryopreserved without DMSO at the presence of trehalose and lipid extracts of some marine hydrobiontes.     

Low-Temperature Properties of Silver

Pure silver is used extensively in the preparation of high-temperature superconductor wires, tapes, films, and other configurations in which the silver not only shields the superconducting material from the surrounding materials, but also provides a degree of flexibility and strain relief, as well as stabilization and low-resistance electrical contact. Silver is relatively expensive, but at this stage of superconductor development, its unique combination of properties seems to offer the only reasonable means of achieving usable lengths of conductor. In this role, the low-temperature physical (electrical, thermal, magnetic, optical) and mechanical properties of the silver all become important. Here we present a collection of properties data extracted from the cryogenic literature and, to the extent possible, selected for reliability.     

Early ironwork in Biscay: Survey,excavation, experimentation and materials characterization. An integral study of the mountainside ironworks (ferrerías de monte or “haizeolak”)

ABSTRACT

The production of iron in Biscay (Basque Country, Spain) has been a hallmark of this territory of the North of the Iberian Peninsula throughout its history. The Archaeology team of the Basque Country Mining Museum has spent 13 years, so far, studying the origins of this activity through the evidences left at the old pre-hydraulic iron production workshops known as mountainside ironworks (ferrerías de monte) or haizeolak. It has catalogued 170 archaeometallurgical sites of this type in Biscay, and the archeological excavation of some of them has led to the knowledge of the different stages of the production process that took place in these workshops. The team has also experimentally reproduced the work carried out in a mountainside ironworks from the High Middle Ages, and it has currently started the characterization process of this type of activity through the study of the collected materials.     

Optimum-Simulation von Ernteprozessen

Zusammenfassung Bei der Gestaltung von Ernteprozessen — beispielsweise des Prozesses Mähdrusch, Körnertransport und -abnahme — als transportverbundene Fließarbeitsverfahren mit mindestens zwei verschiedenen Arbeitsmitteln gibt es einen großen Optimierungsspielraum. Solche Prozesse sind mehrstufige Bedienungsprozesse mit gemischter Anordnung der Bedienungseinrichtungen. Außerdem besitzen sie stark ausgeprägte räumliche Aspekte. Es wird vor allem gezeigt, welche Merkmale solcher Prozesse in Simulationsmodellen abgebildet sein müssen, welche Zielgrößen in Abhängigkeit von welchen Einflußgrößen unter Berücksichtigung welcher Prozeßbedingungen ermittelt werden sollten und wie der Bewertungsprozeß zur Ermittlung der gewünschten Informationen gestaltet werden muß.     

Mechanism Study on the Wear of CrAlTiN Coated High-Speed Steel Twist Drills Under Dry Cutting Conditions

As demands about environment protection are growing up, dry cutting technology is getting more and more concerns from all over the world. Main works performed here are study on dry cutting performances and wear mechanisms of M2high-speed steel (HSS) twist drills with CrAlTiN multicomponent coatings, which was deposited using magnetron sputter ion plating system, in drilling 45 and 30CrMnSiA steel, and their comparisons to those in drilling the same steel but using monolayer CrN and commercial TiN coated drills. Drilling performances of drills are evaluated mainly through the measurements of width on outer corner flank land and the cutting forces. Results show that performances of CrAlTiN coated drills are better than those of monolayer CrN and TiN coated drills. In drilling 45 and 30CrMnSiA steel, the average tool life of the CrAlTiN coated drills are 17.2 and 11.8 times higher than those of the uncoated drills. Observing wear of the drill with scanning electronic microscope, results show that there is no crack or spallation of the CrAlTiN coatings in wear zones. Main mechanism of the wear here is adhesion.     

Structural Characteristics of TiO2 Ceramic Coating by Micro-Plasma Oxidation

TiO2 ceramic coatings with thickness of 20 μm were formed on the surface of pure titanium by micro-plasma oxidation. Their micro-structures were investigated by by using X-ray diffraction and their surface images were detected by using scan electronic microscope. There were three kinds of TiO2 coatings, pure anatase type TiO2 phase, mixed phases consisted of rutile type TiO2 phase and anatase type TiO2 phase, pure rutile type TiO2 phase. The coating surface with the pure anatase type TiO2 phase is rough, while the coating surface with the pure rutile type TiO2phase is smooth. The upper coating surface with the mixed type TiO2 phases is anatase type TiO2 structure and the subsurface of the TiO2 coating is rutile type TiO2structure.