摘要
研究了赤泥对垃圾渗滤液中污染物的吸附性能,探讨了赤泥的物理化学性能和吸附机理。利用赤泥的吸附性能和絮凝性能可脱去渗滤液中的COD、氨氮和色度,COD去除率为30%,氨氮的去除率为20%,色度去除率为40%,并可有效地去除重金属。利用了赤泥中的剩余碱,将其直接用于垃圾渗滤液的化学脱氨。赤泥对垃圾渗滤液中COD、NH_3-N和色度去除率随浸泡时间的增加而增加。
Adsorbent properties of red mud to contamination of leachate were studied, physical and chemistry properties as well as adsorption mechanism of red mud were discussed. The COD and nitrogen compounds as well as color in leachate by red mud were removed. The removal rate of COD was 40%, the removal rate of Ammonia nitrogen was 20% , removal rate of Color was 40%. and heavy metals can be removed effectively. Remaining base in red mud was directly used to remove nitrogen compounds in the leachate by the chemical method. Removal efficiency of COD, NH3 - N and color is increased as the soaking time is increased.
出处
《现代科学仪器》
2008年第5期96-99,共4页
Modern Scientific Instruments
关键词
赤泥
垃圾渗滤液
吸附
脱氮
red mud
leachate
absorption
removal to nitrogen compounds
