何梓豪;王磊;

• 1:新汶矿业集团有限责任公司洗煤分公司

摘要(Abstract)：

以浮选尾煤为原料，通过热处理联合Na_2CO_3改性的方法制备了浮选尾煤基吸附剂(TC-CN),采用XRD、FTIR、SEM对吸附剂的表面化学、微观形貌进行表征，并研究了TC-CN对Pb⁽²⁺⁾的吸附性能。结果表明：TC-CN的颗粒均匀化和堆积作用促进了孔隙的增加，保证了吸附剂对Pb(2+)的吸附性能。结果表明：TC-CN的颗粒均匀化和堆积作用促进了孔隙的增加，保证了吸附剂对Pb⁽²⁺⁾的高吸附能力；常温25℃下TC-CN的最佳试验条件：投加量4 g/L、废水初始pH为6、处理时间120 min,对200 mg/L Pb(2+)的高吸附能力；常温25℃下TC-CN的最佳试验条件：投加量4 g/L、废水初始pH为6、处理时间120 min,对200 mg/L Pb⁽²⁺⁾的吸附率为99.3%,适当提高吸附温度效果更好；TC-CN对Pb(2+)的吸附率为99.3%,适当提高吸附温度效果更好；TC-CN对Pb⁽²⁺⁾的吸附过程为自发的吸热过程，以化学吸附为主，最大吸附容量达到65.5 mg/g。研究结果对综合利用浮选尾煤，实现“以废治废”提供了可行的途径。

关键词(KeyWords)： 尾煤;吸附剂;铅离子;吸附性能

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 何梓豪;王磊;

DOI: 10.16200/j.cnki.11-2627/td.2022.06.017

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