小型层燃锅炉燃用煤矸石的技术研究

本文对采用煤矸石生产小型层燃锅炉用燃料的技术进行了介绍。在实验室取得配方及成型尺寸优选数据后,进行了生产性应用,并获得成功。表明该燃料主要性能满足小型燃锅炉及民用煤炉的燃用要求,烟尘排放达到了国家规定标准。     

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。     

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。     

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。     

室内空气污染概述

由于燃料燃烧、烹饪、人类活动、不合格建材和装饰材料的使用，房屋的密闭性结构等诸多因素，使室内空气污染远高于室外，从而严重地危害人们的健康，甚至导致多种疾病的发生。文章较全面地概述了室内空气污染的来源和类型，对人体的危害情况、目前的分析测试方法和标准样样品状况。     

一种环保节能的新型清洁能源——乳化柴油

鉴于目前燃油成本较高，以燃油为燃料的许多单位无法承受，本文结合实际工作情况，介绍了乳化柴油环保节能的重要性，对其产生的主要污染物进行了测试．测试结果表明，燃用乳化柴油时废气污染物排放达到国家现行环保排放标准要求．