摘要
天然沸石经改性后对铅、镉有较好的吸附能力 ,当铅的浓度为 2mg/L ,沸石用量30 g ,动态变换 3小时 ,吸附效率达 90 %以上 ,吸附容量达 5mg/ g ;当镉的浓度为 1 0 0mg/L ,沸石用量 1 0 g ,动态交换 2 4小时 ,吸附效率可达 99 8%以上。在 45 0℃时处理的沸石吸附效果最佳 ,改性后的沸石对铜的吸附具有较好的选择性。
After activation treatment by acid, natural zeolite can absorb Pb 2+ ?Cd 2+ in water significently. The result shows that if concentration of Pb 2+ is 2g/L, Zeolite quantity is 30g, reation time is three hours or more time. The removal efficiency of lead is beyond 90%, The adsorbance is about 5mg/g if concentration of Cd 2+ is 100mg/L, Zeolite quantity is 10g reation time is 24h, the removal efficiency of Cd 2+ is beyond 99.8%, the result also shows the removal efficiency is superior when treat the zeolite under 450℃
出处
《内蒙古石油化工》
CAS
2003年第2期5-7,共3页
Inner Mongolia Petrochemical Industry
