从汽柴油标准发展看清洁生产

通过分析目前国内外汽油、柴油标准发展情况，提出清洁工艺方案建议     

柴油机排气控制的研究进展

伴随着柴油机排放标准的日益严格,柴油机排气控制愈来愈受到重视。对降低柴油机微粒和NOx排放的发动机改造、燃料改进和排气后处理技术进行了综述,并指出了今后的努力方向。     

替代燃料汽车排放污染的相关探讨

根据国内替代燃料汽车的情况，从分析目前国内主要应用的几种替代燃料的物化特性入手，结合汽车使用时燃料燃烧特性，得出替代燃料汽车的排放污染物情况。     

Response of antioxidase in viscera of Pagrosuma major larvae to water soluble fraction of hydrocarbons in No.0 diesel oil

Pagrosomus major larvae were to the water-soluble fraction of hydrocarbon in No.0 diesel oil(corresponding to No.2 fuel oil) at concentration of 0,0.17,1.22 and 8.82mg/L for up to 15 days.Larvae were sampled on days 9 and 15 of the experiment.Supernatants of viscera tissue extractions were assayed for biochemical response in terms of oxidative stress-superoxide dismutase(SOD),activity of selenium-dependant glutathione peroxidase(Se-GPx) and catalase(Ca),and the concentration of reduced glutathione(CSH).On day 9 of exposure ,statistically significant dose-related increases in Se-GPx and SOD activity,and GSH concentration were observed in all cases except for Se-GPx activity under the highest dosage of hydrocarbon.However,on day 15 of exposure, a similar dose-related in all cases except for Se-GPx activity under the highest dosage of hydrocarbon.However,on day 15 of exposure, a similar dose-related response was only observed for Se-GPx activity.GSH concentration decreased and SOD activity showed no statistical difference as compared to controls.However, a significant decrease in compared to day 9 Se-GPx activity and GSH concentration, in contrast to increase SOD activity at day 15 as indicates an accelerated accumulation of H2O2 and potential oxidative damage under long term exposure of larvae to hydrocarbons.No statistical changes were observed in Ca activity throughout the experiment, possibly owing to the high efficiency of Se-GPx.A recovery experiment was performed on indicating that the response of antioxidants measured tending to returm to return to their control levels.These results prove the function of the antioxidant defense system of the larvae to the water-soluble fraction of hydrocarbons in No.0 diesel oil.     

燃料电池汽车的环境意义

介绍了燃料电池的结构，特点和燃料电池动力汽车的发展概况；通过比较，阐述了燃料电池汽车的环境意义。     

国际机动车污染控制进展

本文从排气污染控制技术、清洁燃料、污染管理体系等方面简要介绍了国际机动车排气污染防治的进展，这些措施对改善城市环境质量起到了至关重要的作用，其中一些经验值得我们的参考借鉴。     

催化裂化含酚废水的预处理研究

本文研究了用焦化柴油为萃取剂，采用萃取法对催化裂化含酚废水进行脱酚预处理的可能性。并研究了混合强度、ｐＨ值等对萃取效率的影响，测定了油水两相中酚浓度的平衡曲线．研究结果表明，采用焦化柴油对这一含酚废水进行处理是可行的。