Coal is the most important part of energy structure and the natural surroundings in poordispersion of pollutants in the air are the main reasons for serious pollution in Lanzhou urban.
以煤为主的能源结构和不利于污染物扩散的自然环境是兰州市区大气污染严重的主要原因。
2
Hence, the combination of 6DT-6PDTU has a higher power demand and a poor gas-liquid dispersion and mixing, while the self-inspirating gas and gas-liquid mass transfer are better.