赤泥原料及其对吸附剂吸附性能的影响  

Red Mud Raw Materials and Their Influence on Adsorption Properties for Prepared Adsorbents

作　　者：李德贵[1] 阮素云[1] 覃铭[1] 刘淑辉[1] 梁柳青[1] 何兵[1] 

机构地区：[1]百色学院物理与电信工程系,广西百色533000

出　　处：《当代化工》2015年第1期41-44,共4页Contemporary Chemical Industry

基　　金：广西高校科学技术研究项目;项目号:YB2014386;百色学院科学研究项目;项目号:2011KB02

摘　　要：赤泥的堆放会对环境造成污染,但其具有较高的吸附性能,因此研究制备赤泥吸附剂能达到以废治废的目的。实验分别采用平果和德保赤泥制备吸附剂,研究了赤泥原料及赤泥吸附剂的物相组成,采用除氟及除铜实验研究了赤泥产地及赤泥堆放时间对吸附剂吸附性能的影响。结果表明,以平果、德保赤泥制备的吸附剂,在焙烧温度500℃、焙烧2 h、溶液p H值为6的条件下,氟浓度可分别从19 mg/L降低到0.21、0.19 mg/L;铜浓度可分别从64 mg/L降低到0.32、0.51 mg/L。对氟的吸附容量均可达0.94 mg/g;对铜吸附容量分别可达3.18、3.17 mg/g;对氟、铜的去除率分别在99%、98%以上。Red mud dumping can cause the environment pollution, but the red mud has high adsorption performance, so it can be produced into the adsorbent. In this paper, the adsorbents were respectively prepared from Pingguo red mud and Debao red mud, and the composition of red mud and prepared adsorbents was studied. The influence of red mud origin and storage time on the adsorption properties was investigated by the fluorine and copper ion removal experiments. The results show that the adsorbents prepared from Pingguo and Debao red mud have good adsorption properties under the condition of calcinations temperature 500 ℃, calcinations time 2 h and solution pH 6;the concentration of fluorine in the solution can be reduced from 19 mg/L to 0.21 mg/L, 0.19 mg/L, and the concentration of copper ion can be reduced from 64 mg/L to 0.32 mg/L, 0.51 mg/L respectively;the adsorption capacity for fluorine can reach 0.94 mg/g, and the adsorption capacity for copper ion can reach 3.18 mg/g, 3.17 mg/g respectively. The removal rates of fluorine and copper ions are above 99%, 98% respectively.

关 键 词：赤泥 氟 铜 吸附剂 

分 类 号：TQ115[化学工程—无机化工] TB321[一般工业技术—材料科学与工程]