生活垃圾高温空气气化处理的低污染特性分析

本文介绍了高温空气气化城市生活垃圾的工作原理及过程 ,分析了城市生活垃圾高温气化反应机理。通过对高温空气 /蒸汽发生器、高温气化炉及湿式除尘器等关键部件的分析发现 ,采用高温空气气化系统可实现城市生活垃圾低污染处理     

The effect of background irradiation on photocatalytic efficiencies of TiO2 thin films

TiO(2) thin films were prepared on quartz pipe substrates. Effects of the thickness of the films, the wavelength of the UV light and La doping on efficiencies of background irradiated photocatalysis were investigated, and simultaneously was compared with those of foreground irradiated photocatalysis. The results showed that there was an optimal thickness of the film corresponding with each wavelength of the light source limited in the range from 300 nm to 388 nm in the case of background irradiated photocatalysis, which was quite different from that of foreground irradiated one. But in both cases, the film's photocatalytic activities were enhanced by La non-uniformly doping. The results are useful for the design of high-efficiency photocatalytic reactors.     

新型厌氧反应器--USSB的启动研究

对上流式分段污泥床反应器在中温(35±2)℃下处理生活污水前的启动过程进行了试验研究.反应器经过40 d的启动后,当进水有机负荷为2.2 kg COD/m3·d时,其COD去除率能稳定在80%左右,出水pH值和碳酸氢盐碱度/VFA分别大于6.5和2,整个系统运行稳定.     

中国煤矿样中砷、硒、铬、铀、钍元素的含量分布

本文利用中子活化分析法测定中国24个省市110个煤矿样中的砷、硒、铬、铀、钍元素,给出上述元素的含量范围,并就这些元素与环境的关系作了讨论。