青岛市大气污染状况及发展趋势

本文旨在研究和揭示青岛市近年来大气环境污染的状况，特征，规律，危害及其发展趋势，并对该市大气质量进行了研究与分析，青岛市大气污染属于“煤烟型”污染，污染最为严重的大气污染物为ＳＯ２和颗粒物，近年来，ＳＯ２的浓度超过国家大气质量二级标准的１．５～３．６倍，颗料物的浓度超过０．８３～１．６倍，降尘超过青岛地区降尘标准的１．３～２．８倍，青岛市已成为我国大气污染严重的城市之一。预测表明，未来青岛市大气环     

催化装置再生烟气中氮氧化物的产生与控制

对催化装置再生烟气排放的超标NOx的危害、产生的原因、及控制进行了分析。结合FP降氮助燃剂的试用对NOx的控制方法做了简要介绍。     

燃烧烟气中NOx形态探讨

通过化学热力学计算，得出燃烧系统内烟气中NO、NO2的平衡浓度，从理论上指出燃烧烟气除硝的正确方法，简述了NO排入大气后氧化的状况。     

煤燃烧过程中影响NOx转化的因素探讨

利用管式沉降炉对煤粉燃烧过程中的反应温度、初始氧浓度、反应时间、煤的挥发分及含氧量对燃料氮向ＮＯｘ转的影响进行了试验研究，摸清了反应的规律，找出了影响转化的显著因素。     

湿法吸收法处理氮氧化物废气

介绍了湿法吸收氮氧化物工业废气的方法，并对吸收液和吸收塔进行了深入的探讨和研究。     

The integration of methanogenesis with denitrification and anaerobic ammonium oxidation in an expaned granular sludge bed reactor

The integration of methanogenesis with denitrification and anaerobic ammonium oxidation (ANAMMOX) was studied in an expanded granular sludge bed (EGSB) reactor in this work. Experimental results from the continuous treatment of wastewater with nitrite and ammonium, which lasted for 107 days, demonstrated that wastewater with high nitrite and ammonium could be anaerobically treated in an expanded granular sludge bed reactor. More than 91% to 97% of COD were removed at up to about 3.9 g COD/(L x d) of COD volumetric loading rate. More than 97% to 100% of nitrite was denitrified at up to about 0.8 g NO2(-) -N/(L x d), which is 16 times higher than that in a conventional activated sludge system with nitrification/denitrification (0.05 gN/(L x d)). No dissimilatory reduction of nitrite to ammonium occurred in the process. However, maximum of about 40% ammonium was found to be lost. Batch tests of 15 days with sludge from the reactor showed that 100% of nitrite was denitrified completely, and about 3% of ammonium was removed when only ammonium (34.3 mg/L) and nitrite (34.3 mg/ L) were added into the sludge suspension medium. Furthermore, about 15% of ammonium amounts were lost with organic COD addition. It suggested that the methanogenesis in the system could enhance ANAMMOX because of intermediate hydrogen produced during methanogenesis.     

我国氮氧化物烟气治理技术现状及发展趋势

综述了我国现阶段常用的氮氧化物废气的治理技术原理、特点及应用水平，介绍了在我国较常使用的选择性催化还原法、选择性非催化还原法、碱液吸收法和极具发展前途的微生物法和液膜法等氮氧化物废气的治理技术。     

核-壳结构的Fe-FeOxH2x-3催化UV/H2O2降解腐殖酸

采用硼氢化钠还原法制备了核-壳结构的Fe-FeOxH2x-3纳米复合材料,在近紫外光和H2O2催化条件下,对饮用水消毒副产物前驱体腐殖酸的去除比纳米零价铁的去除高.说明零价铁表面铁氧化物能加速界面电子转移,提高反应效率.探讨了H2O2浓度、腐殖酸初始浓度和起始溶液pH对反应速率的影响.研究结果表明,H2O2最佳投加量为5 mmol·L-1,在pH为5～9时,催化剂都显示了较高的活性;腐殖酸不但被脱色降解,而且TOC去除率达到60%,并且生成的中间产物降低了三氯甲烷的生成趋势.     

空气污染指数

空气污染指数(Air Pollution Index，简称API)就是将常规监测的几种空气污染物浓度简化成为单一的概念性指数值形式，并分级表征空气污染程度和空气质量状况，适合于表示城市的短期空气质量状况和变化趋势。     

对现代汉语词缀性质的认识

现代汉语缺乏形态变化，汉语词缀也不像其它语言那样明了，汉语界对词缀的认识从术语、定义到范围还存在着不少争议。本文从词缀位置的固定性、所表现的意义、结构特点、构词和生成能力以及对词性的标识作用等五个方面分析词缀的性质，以期达到对汉语词缀进一步了解的目的。