含氰废水的处理方法

综述了含氰废水处理的化学法(碱性氯化法、硫酸亚铁法、过氧化物法、水解法、臭氧处理法、多硫化物处理法、燃烧法、电化学法),物理化学法(活性炭吸附法、离子交换法、液膜法),物理法(蒸发浓缩法)和生化法等。     

薄膜材料的制备方法

文章详细介绍了薄膜材料制备的各种方法,包括真空蒸发法、真空溅射法、脉冲激光沉积法、分子束外延法、化学气相沉积法、化学浴沉积法、电沉积法、溶胶一凝胶法、连续离子层吸附与反应法、分子自组装技术法、模板合成法、溶剂热法。     

印染废水处理传统工艺与新兴技术

在剖析印染水质特征的基础上,综述了印染废水处理的传统工艺和典型新兴技术。分别阐述了传统工艺中的吸附法、混凝法、膜分离法、电化学法、光催化氧化法、化学氧化法、好氧生物法、厌氧生物法以及典型新兴技术中的超声波法、临界水氧化法、湿式氧化法、生物强化法、固定化微生物技术。分析了各方法优缺点并展望了未来技术的发展趋势。     

室内甲醛处理技术综述

作为室内空气主要污染物的甲醛,由于来源广、危害大、挥发时间长备受人们关注.现有室内甲醛的处理方法可以分类为物理法、化学法、生物法以及组合法.物理法包括吸收法和吸附法.化学法包括化学溶液吸收法、光催化氧化法、等离子体法、臭氧氧化法和热催化氧化法.生物法包括植物法和微生物法.组合法为多种处理方法组合共同处理甲醛的方法.分析和研究了这些处理方法的工作原理、优缺点以及研究的热点问题.     

常压连续脱硫成套设备工艺的研究

废橡胶再生技术是世界橡胶工业多年来一直在研究的重要课题。一百多年来，人们在积极探索废橡胶有效的再生方法，先后发明了蒸汽法、蒸煮法、溶解法、酸法、碱法、油法、水油法、动态法、塑化法……发明的专利有150多项。     

浅谈垃圾填埋处理场渗滤液的处理方法

常用的渗滤液处理方法分为生物处理法、物理化学处理法、土地处理法。物理化学处理法包括混凝沉淀法、化学氧化法、吸附法和膜分离法等。     

环氧丙烷生产技术及市场综述

概述了环氧丙烷产品国内外工业化生产技术现状,目前国外生产技术主要有:氯醇法、共氧化法、异丙苯氧化法(CHP法)、过氧化氢直接氧化法(HPPO法);国内生产技术主要有:氯醇法、共氧化法。对氯醇法、共氧化法、异丙苯法、过氧化氢氧化法技术优缺点进行了对比,对环氧丙烷国内外生产及消费情况进行了阐述,并提出了发展建议。     

聚磷酸铵合成方法的研究进展

系统介绍了聚磷酸铵的生产方法,包括磷酸二氢铵法、磷酸-尿素法、磷酸脲法、磷酸二氢铵-尿素法、磷酸氨化法和磷酸铵-五氧化二磷法。磷酸二氢铵法、磷酸-尿素法、磷酸氨化法得到的产物聚合度较低,低聚合度聚磷酸铵水溶性高,呈中性,适宜作农用肥料;磷酸二氢铵-尿素法和磷酸铵-五氧化二磷法得到的产物聚合度较高,高聚合度聚磷酸铵适宜作阻燃剂。     

污泥厌氧消化预处理技术综述

综述了目前研究比较广泛的污泥预处理技术,包括酸碱法、超声波法、热解法、γ-射线辐照法、臭氧氧化法、高铁酸钾氧化法、电化学氧化法、生物酶法以及联合法等技术,分别分析了它们的原理、特点、处理效果以及应用前景。     

可膨胀石墨电化学氧化法制备工艺研究进展

综述了可膨胀石墨(EG)电化学氧化法制备工艺的研究现状。EG电化学氧化法制备工艺按电解液的种类不同可分为无机酸法、有机酸法、混酸法、硫酸-氧化剂法、铵盐法;按电流的施加方式有普通直流法、脉冲直流法、定时换向直流法;此外,还有电解-气体搅拌法、电解-超声振动法。加强电化学法制备EG反应机理研究,研究筛选不溶性阳极材料,继续开发新的工艺和设备是EG电化学氧化法制备研究的发展方向。     

Insect antifeedant properties of anthranoids from the genusVismia

Vismiones and ferruginins, representatives of a new class of lypophilic anthranoids from the genusVismia were found to inhibit feeding in larvae of species ofSpodoptera, Heliothis, and inLocusta migratoria.     

Direct observation of freeze-thaw instability of latex coatings via high pressure freezing and cryogenic SEM

Despite its industrial importance, the subject of freeze-thaw (F/T) stability of latex coatings has not been studied extensively. There is also a lack of fundamental understanding about the process and the mechanisms through which a coating becomes destabilized. High pressure (2100 bar) freezing fixes the state of water-suspended particles of polymer binder and inorganic pigments without the growth of ice crystals during freezing that produce artifacts in direct imaging scanning electron microscopy (SEM) of fracture surfaces of frozen coatings. We show that by incorporating copolymerizable functional monomers, it is possible to achieve F/T stability in polymer latexes and in low-VOC paints, as judged by the microstructures revealed by the cryogenic SEM technique. Particle coalescence as well as pigment segregation in F/T unstable systems are visualized. In order to achieve F/T stability in paints, latex particles must not flocculate and should provide protection to inorganic pigment and extender particles. Because of the unique capabilities of the cryogenic SEM, we are able to separate the effects of freezing and thawing, and study the influence of the rate of freezing and thawing on F/T stability. Destabilization can be caused by either freezing or thawing. A slow freezing process is more detrimental to F/T stability than a fast freezing process; the latter actually preserves suspension stability during freezing. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004 in Chicago, IL. Tied for first place in The John A. Gordon Best Paper Competition.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Bark and Ambrosia Beetles in the Southeastern US

In 2002–2004, we examined the flight responses of 49 species of native and exotic bark and ambrosia beetles (Coleoptera: Scolytidae and Platypodidae) to traps baited with ethanol and/or (−)-α-pinene in the southeastern US. Eight field trials were conducted in mature pine stands in Alabama, Florida, Georgia, North Carolina, and South Carolina. Funnel traps baited with ethanol lures (release rate, about 0.6 g/day at 25–28°C) were attractive to ten species of ambrosia beetles (Ambrosiodmus tachygraphus, Anisandrus sayi, Dryoxylon onoharaensum, Monarthrum mali, Xyleborinus saxesenii, Xyleborus affinis, Xyleborus ferrugineus, Xylosandrus compactus, Xylosandrus crassiusculus, and Xylosandrus germanus) and two species of bark beetles (Cryptocarenus heveae and Hypothenemus sp.). Traps baited with (−)-α-pinene lures (release rate, 2–6 g/day at 25–28°C) were attractive to five bark beetle species (Dendroctonus terebrans, Hylastes porculus, Hylastes salebrosus, Hylastes tenuis, and Ips grandicollis) and one platypodid ambrosia beetle species (Myoplatypus flavicornis). Ethanol enhanced responses of some species (Xyleborus pubescens, H. porculus, H. salebrosus, H. tenuis, and Pityophthorus cariniceps) to traps baited with (−)-α-pinene in some locations. (−)-α-Pinene interrupted the response of some ambrosia beetle species to traps baited with ethanol, but only the response of D. onoharaensum was interrupted consistently at most locations. Of 23 species of ambrosia beetles captured in our field trials, nine were exotic and accounted for 70–97% of total catches of ambrosia beetles. Our results provide support for the continued use of separate traps baited with ethanol alone and ethanol with (−)-α-pinene to detect and monitor common bark and ambrosia beetles from the southeastern region of the US.     

Methyl 2,4,6-decatrienoates Attract Stink Bugs and Tachinid Parasitoids

Halyomorpha halys (Stål) (Pentatomidae), called the brown marmorated stink bug (BMSB), is a newly invasive species in the eastern USA that is rapidly spreading from the original point of establishment in Allentown, PA. In its native range, the BMSB is reportedly attracted to methyl (E,E,Z)-2,4,6-decatrienoate, the male-produced pheromone of another pentatomid common in eastern Asia, Plautia stali Scott. In North America, Thyanta spp. are the only pentatomids known to produce methyl 2,4,6-decatrienoate [the (E,Z,Z)-isomer] as part of their pheromones. Methyl 2,4,6-decatrienoates were field-tested in Maryland to monitor the spread of the BMSB and to explore the possibility that Thyanta spp. are an alternate host for parasitic tachinid flies that use stink bug pheromones as host-finding kairomones. Here we report the first captures of adult and nymph BMSBs in traps baited with methyl (E,E,Z)-2,4,6-decatrienoate in central Maryland and present data verifying that the tachinid, Euclytia flava (Townsend), exploits methyl (E,Z,Z)-2,4,6-decatrienoate as a kairomone. We also report the unexpected finding that various isomers of methyl 2,4,6-decatrienoate attract Acrosternum hilare (Say), although this bug apparently does not produce methyl decatrienoates. Other stink bugs and tachinids native to North America were also attracted to methyl 2,4,6-decatrienoates. These data indicate there are Heteroptera in North America in addition to Thyanta spp. that probably use methyl 2,4,6-decatrienoates as pheromones. The evidence that some pentatomids exploit the pheromones of other true bugs as kairomones to find food or to congregate as a passive defense against tachinid parasitism is discussed.     

2007～2008年世界塑料工业进展

收集了2007年7月～2008年6月世界塑料工业的相关资料,介绍了2007～2008年国外塑料工业的发展情况,提供了世界塑料产量、消费量及全球各类树脂的需求量及产能情况.按通用热塑性树脂(聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂)、工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚)、特种工程塑料(聚苯·硫醚、液晶聚合物、聚醚醚酮)、通用热固性树脂(酚醛、聚氨酯、不饱和聚酯树脂、环氧树脂)不同品种的顺序,对树脂的产量、消费量、供需状况及合成工艺、产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍.     

2005～2006年国外塑料工业进展

收集了2005年7月～2006年6月国外塑料工业的相关资料,介绍了2005—2006年国外塑料工业的发展情况。提供了世界塑料产量、消费量及全球各类树脂生产量以及各国塑料制品的进出口情况。作为对比,介绍了中国塑料的生产情况。按通用热塑性树脂（聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂）、工程塑料（聚酰胺、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚）、通用热固性树脂（酚醛、聚氨酯、不饱和树脂、环氧树脂）、特种工程塑料（聚苯硫醚、液晶聚合物、聚醚醚酮）的品种顺序,对树脂的产量、消费量、供需状况及合成工艺、产品开发、树脂品种的延伸及应用的扩展作了详细的介绍。