生物蒸发处理垃圾渗滤液节能通风方式的探索

为探索生物蒸发过程中的节能通风方式,设置了生物蒸发过程中4个变化频率的间歇性通风方式,比较了不同通风方式下对有机物的去除性能和电能消耗。结果表明,以30min为1个周期,通风10min/停止通风20min,以此循环的间歇通风方式具有最高的水和VS去除率,去除率分别为61.2%和58.08%;而通风20min/停止通风10min方式下,去除率分别为55.09%和53.14%;通风5min/停止通风10min方式下,去除率分别为57.69%和49.93%;通风10min/停止通风5min方式下,去除率分别为50.61%和46.74%通风10min/停止通风20min和通风5min/停止通风10min的用电时间仅是其他两种通风方式的一半,能耗较低。综合考虑去除效果和电耗,通风10min/停止通风20min是最好的间歇性通风方式。

Energy Efficient Ventilation Mode for Landfill Leachate Bioevaporation

To explore an energy efficient ventilation mode in the process of bioevaporation , four intermittent ventilation modes were set up during bioevaporation, and their performances on water and organic matters removal and energy consumption were compared. Results showed that, using 30 minutes as a cycle, the 10 minutes ventilation/20 minutes idling mode reached the highest water and VS removal rates, which were 61.2% and 58. 08%, respectively. The removal rates for 20 minutes ventilation/10 minutes idling mode were 55. 09% and 53. 14%, respectively. The removal rates were 57. 69% and 49. 93% for 5 minutes ventilation/10 minutes idling mode, and 50. 61 % and 46. 74% for 10 minutes ventilation/5 minutes idling mode. At the same time, the ventilation time in the 10 minutes ventilation/ 20 minutes idling mode and the 5 minutes ventilation/10 minutes idling mode was only half of the other two ventilation modes, indicating half of the energy consumption. Therefore, the 10 minutes ventilation/ 20 minutes idling mode was the best choice.