【摘要】 利用蒸发法对中老龄垃圾渗滤液进行处理,通过定时分批对蒸发后的渗滤液进行取样测定,研究在不同蒸发温度、不同风速条件下渗滤液在蒸发过程中pH值、有机物及氨氮含量的变化规律。结果表明:蒸发浓缩液中pH值变化幅度不大;渗滤液中有机污染物在不同的蒸发条件下总量在减少,但减少量不大;在蒸发温度为25℃,风速为1.5 m/s的条件下氨氮的去除效率为37%。更多还原

【Abstract】 The authors studied the treatment of old landfill leachate using evaporation method.The research of variation regularity on pH value,organic compounds and ammonia-nitrogen contents of landfill leachate in evaporation under different temperatures and wind conditions has been done through timed and batch sampling to evaporated landfill leachate.The results showed that the pH value in concentrated solution changed very little.The amount of total organic pollutants was increasing at different evaporation conditions,while the change was indistinctively.The removal rate of ammonia-nitrogen was 37% when the evaporation temperature was 25℃ and the wind speed as 1.5 m/s.更多还原