人工增雪技术对降低雾霾天气污染物浓度的可行性研究

雾霾天气是影响城镇居民生活健康的主要原因之一,冬季降雪量不足会导致城市内空气污染物浓度加重。为此使用人工增雪技术提高冬季降雪量,并探究人工增雪技术对降低雾霾天气污染物浓度的可行性。分析人工增雪技术的效果和潜力,计算城市内雾霾天气污染物浓度和降雪量间的变化,以此分析该技术的可行性。分析结果表明,人工增雪能降低雾霾天气污染物浓度,有效改善城市内的酸雨情况,优化空气污染质量综合指数,提高空气质量优良率。证明了人工增雪技术对降低雾霾天气污染物浓度的可行性较强。

关于我国课征环境税的思考

随着我国工业的发展,城市现代化步伐的加快,污染物排放量呈现逐年递增态势,原因是我国经济增长对高耗能、高污染行业的过度依赖,因此,课征环境税势在必行。以课征环境税是环境和经济可持续发展的需要为侧重点,通过阐述环境税与直接管制的比较、环境税制的设立假想,论证了我国开征环境税的可行性。

Investigation on Promising Additives for Simultaneous Oxidation of NO and SO_2 in Flue Gas by Numerical Simulation

Mechanism analysis on simultaneous oxidation of NO and SO2 with additives was presented and numerical simulation was developed to investigate the performances of three additives on oxidation of NO and SO2. The simulation result showed that reaction temperature, residence time, additive dose and NO concentration influence the oxidation process significantly. There exists an optimum reaction condition for each additive, n-C4H10 has the strongest ability to oxidize NO and SO2.