液桥凝聚用于办公废纸脱墨的研究

研究了混合办公废纸脱墨的选择性凝聚技术,在废纸浆中添加分散在水中并不与水相溶的长链烷作凝聚剂,这些凝聚剂选择性地将印刷墨粉通过液桥连结在一起,且形成大颗粒的球形聚团,再分选脱除.研究表明只需要加入占纸重量4%的廉价长链烷,即可获得95%以上的脱墨率.因此在混合办公废纸脱墨时加入凝聚剂进行液桥凝聚,可降低脱墨浆中的尘埃度并增加产品的白度.     

在用车简易工况污染物排放检测法

详细论述了在用车简易工况污染物排放检测法的概念、内容和要求,针对目前世界最流行的简易工况法ASM、IM240和VMAS,比较了它们的不同标准与特点,重点介绍了VMAS检测设备的原理、组成、检测方法和特点,最后指出了简易工况法的发展趋势.     

湿法脱硫烟气直接排放的环境问题探讨

讨论了湿烟气直接排放带来的3个环境问题：抬升高度低，地面污染浓度较大；水汽凝结造成白烟；凝结水对局地气候的影响。通过简化计算，给出了某些环境和排放条件下抬升高度、地面最大浓度、白烟长度和数结水量的定量估算，对进行湿烟气直接排放可行性研究的人员有重要参考意义。     

纺织机用高强度异型梭子管的张扭矫直

介绍了纺织机用高强度异型梭子管的一种张扭矫直工艺方法.动用这种工艺方法矫直的梭子管完全可以满足部件的挠度、扭曲度、尺寸精度及硬度的要求.它是一种简便易行并适用于其它小批量异型管(棒)的矫直方法.     

巴陵石化尿素水解装置的环保改造

分析了尿素水解装置存在的问题及采取的改进措施,提高了水解装置处理能力与处理效果,实现了清洁生产、节能降耗、保护环境的目的。     

Capture of carbon dioxide by amine-impregnated as-synthesized MCM-41

The novel carbon dioxide(CO2) adsorbents with a high capture effciency were prepared through impregnating the as-synthesized MCM-41 with three kinds of amines,namely diethylenetriamine(DETA) ,triethylenetetramine(TETA) and 2-amino-2-methyl-1-propanol(AMP) .The resultant samples were characterized by small angle X-ray diffraction and low temperature N2 adsorption.The synthesis way not only saves the energy or extractor to remove the template but also is environmentally friendly due to the absence of the potential pollutants such as toluene.CO2 capture was investigated in a dynamic packed column.The sample impregnated by TETA showed the highest adsorption capacity,approximately 2.22 mmol/g at 60°C due to its highest amino-groups content among the three amines.The CO2 adsorption behavior was also investigated with the deactivation model,which showed an excellent prediction for the breakthrough curves.     

循环经济分析在规划环境影响评价中的应用研究

发展循环经济已经成为完成节能减排任务和开展资源节约型、环境友好型社会建设的重要手段,同时也是规划环境影响评价的重要内容。文章针对目前规划环境影响评价中循环经济分析的主要问题,提出了规划环评中循环经济分析的理论模型、分析重点和技术程序,构建了评价的指标体系,并给出了定性与定量相结合的分析方法。为检验所建立的分析体系的有效性和可行性,将其应用于鄂尔多斯市主导产业与重点区域发展规划环境影响评价中,以此从循环经济的角度对规划的合理性进行评价,对原规划方案进行优化调整,并对规划实施的环境管理提出具体建议。     

Regeneration of 2-amino-2-methyl-1-propanol used for carbon dioxide absorption

To improve the efficiency of the carbon dioxide cycling process and to reduce the regeneration energy consumption, a sterically hindered amine of 2-amino-2-methyl-1-propranol (AMP) was investigated to determine its regeneration behavior as a CO_2 absorbent. The CO_2 absorption and amine regeneration characteristics were experimentally examined under various operating conditions. The regeneration efficiency increased from 86.2% to 98.3% during the temperature range of 358 to 403 K. The most suitable regeneration temperature for AMP was 383 K, in this experiment condition, and the regeneration efficiency of absorption/regeneration runs descended from 98.3% to 94.0%. A number of heat-stable salts (HSS) could cause a reduction in CO_2 absorption capacity and regeneration efficiency. The results indicated that aqueous AMP was easier to regenerate with less loss of absorption capacity than other amines, such as, monoethanolamine (MEA), diethanolamine (DEA), diethylenetriamine (DETA), and N-methyldiethanolamine (MDEA).     

模拟矿井水中部分离子对蚕豆遗传性损伤的研究

用矿井水作蚕豆微核实验,讨论了F^-、Hg^2＋和Cr^6＋单一及复合污染对蚕豆微核的影响。结果表明,F^-、Hg^2＋和Cr^6＋单一污染均对微核产生显著影响,随着氟化物浓度和Cr6＋浓度的增加,微核率呈上升趋势;随着Hg^2＋和Cr^6＋浓度增加,微核率呈先上升后下降的趋势。两因子方差分析显示,F^-和Hg^2＋复合污染对蚕豆微核率有显著影响。     

军事领域中的防人体静电危害研究

从静电对易燃易爆品、武器装备及人员自身的危害等3个方面出发,分析了军事领域中人体静电的危险性.对着不同军装时的人体静电动态电位及综合电阻进行了测试.通过分析试验结果,指出制式皮鞋具有一定的防静电作用.着眼于静电危害形成的基本条件,提出了人体静电防护的相关措施.