ITO再生处理对有机电致发光器件特性的影响

分别采用Na OH和HCl溶液对废旧氧化铟锡(ITO)基板进行再生处理,用原子力显微镜(AFM)观测了处理后的ITO表面形貌,并基于再生处理过的ITO制备了有机电致发光器件(OLED),系统研究了器件的性能。结果表明,上述方法可以有效去除废旧ITO残留的铝电极并改变其表面的化学结构,提高了器件的特性,尤其以Na OH单次处理最为有效。以此制备的OLED器件电流效率达到12.08 cd/A,较之未回收利用的新ITO所制备的器件提高了14.7%;外量子效率达到5.23%,提高了11.7%。另外,经不同方法处理后,器件中生色团与生色团之间、生色团与助色团之间的空间位阻增大,器件发光光谱肩峰效应增强。     

电子垃圾资源化和无害化的综合处理模式研制报告

介绍了国内外电子垃圾处理的现状,阐述了电子垃圾对周围环境的危害,通过分析研究电子垃圾中所包含的可回收利用的资源以及各种资源的回收方法,提出一种科学、高效、可行的电子垃圾回收工艺流程,最终制定一套适合我国国情的电子垃圾资源化和无害化综合处理模式.     

印刷线路板含铜污泥中有价金属铜的回收

采用浸出-电沉积法,从印刷线路板（printed circuit board,PCB）产生的污泥中回收有价金属铜.考察硫酸电流密度、温度、pH值、极间距等条件对阴极铜沉积的影响.实验结果表明,硫酸铜浸出液电沉积处理的适合条件如下：浸出液中铜的浓度在40 g/L左右,pH值为1.4,电流密度为300 A/m²,电解20 h,极间距为5 cm,温度为40 ℃.     

东莞生态园南畲朗河道底泥资源化利用途径研究

随着东莞生态园南畲朗河涌疏浚工程的实施,底泥的处置已成为清淤实施的一大难题．对南畲朗河道底泥性质进行了研究,对南畲朗河涌底泥资源化利用途径进行分析,井最终结合泥性,认为河道底泥回用于建材工业,能够彻底达到污泥稳定化、无害化、资源化,有利于利废增效,保护自然资源,实现可持续发展。     

河道底泥资源化的意义及其途径研究

主要介绍了河道底泥的主要成分和特征，阐明了河道底泥对上覆水体水质的二次污染作用，并对河道底泥资源化的意义和途径进行了阐述和研究，指出底泥资源化的方向和存在的问题。     

甘肃省污水资源化应用探讨

针对甘肃农林业用水日益匮乏的局面,提出了实施城市污水资源化,来缓解甘肃农林业灌溉用水不足的现状.探讨了在农林业利用城市污水资源的必要性与可行性,提出了城市污水用于农业灌溉的可行性技术路线,并对此可能产生的问题作了分析.     

Evaluation of cell recycle on Thermomyces lanuginosus xylanase a production by Pichia pastoris GS 115

This work aims to evaluate cell recycle of a recombinant strain of Pichia pastoris GS115 on the Xylanase A (XynA) production of Thermomyces lanuginosus IOC-4145 in submerged fermentation. Fed-batch processes were carried out with methanol feeding at each 12h and recycling cell at 24, 48, and 72 h. Additionally, the influence of the initial cell concentration was investigated. XynA production was not decreased with the recycling time, during four cell recycles, using an initial cell concentration of 2.5 g/L. The maximum activity was 14,050 U/L obtained in 24h of expression. However, when the initial cell concentration of 0.25 g/L was investigated, the enzymatic activity was reduced by 30 and 75% after the third and fourth cycles, respectively. Finally, it could be concluded that the initial cell concentration influenced the process performance and the interval of cell recycle affected enzymatic production.     

Treatment of Cr(VI)-containing nanowastes via the growth of nanomaterial

The environmental behavior, biological and ecological effects of nanomaterial have attracted much attention, and nanomaterial is prevalently used in the process of industrial manufacturing. However, the investigation on how to resolve the environmental problems of nanowastes is scarcely reported. We have proposed a novel method in which the toxicity of the waste is reduced during the fast growth of nanoparticals. It is suggested that this method could be used in the treatment of the Cr(VI)-containing nanowastes from the chlorate plants. In this work, the efficiencies of the treatment at both room and high temperatures were further studied. The craft route is advanced for the treatment at the high temperature. The phase, morphology, size, and thermal behavior of the detoxified solid were analyzed by XRD, SEM, and DTA. The solid was also tried as the raw of glaze. The disposal provided here will be a good example for the recycling of the hazardous nanowastes.     

刍议绿色高分子材料

介绍了绿色高分子材料的定义、种类和研究方向,提出了可环境消纳高分子材料成为高分子材料绿色化的主要研究方向和21世纪高分子材料的发展趋势。     

羟丙基胍胶压裂液重复利用技术研究

针对南泥湾采油厂压裂施工后返排液多、处理费用高,研究了羟丙基胍胶压裂液重复利用技术.首先,以羟丙基胍胶为稠化剂,硼砂为交联剂,缓释型SS-1为破胶剂制备可重复利用的压裂液基液.然后在40℃条件下,优化重复利用时破胶液与基液的混合比例,以及向混合液中加入交联剂、破胶剂和交联促进剂的量,满足现场施工60 s内交联、3 h后破胶的要求.通过室内实验确定了重复利用压裂液体系最佳配方:破胶液与基液混合体积比为1∶3,加入交联剂硼砂质量分数0.035%～0.045%,缓释型破胶剂SS-1质量分数0.25%～0.35%,交联促进剂质量分数0.03%～0.06%.性能评价结果表明,该压裂液体系具有良好的流变性和抗剪切性,滤失量小,破胶彻底和残渣低等优良性能,实现了压裂液的重复利用.