碳羟磷灰石对水中Cr(Ⅵ)的吸附研究  

Study on Carbon Hydroxyapatite Adsorption of Cr(Ⅵ) from Water

作　　者：黄雅莉 李畅 HUANG Ya-li;LI Chang(Ganzhou Branch,Jiangsu Jiuli Environment Joint Stock Technology Co.,Ltd.,Jiangxi Ganzhou 341000;Jiangxi Key Laboratory of Mining&Metallurgy Environmental Pollution Control,Jiangxi University of Science and Technology,Jiangxi Ganzhou 341000,China)

机构地区：[1]江苏久力环境股份科技有限公司赣州分公司,江西赣州341000 [2]江西理工大学,江西省矿冶环境污染控制重点实验室,江西赣州341000

出　　处：《广州化工》2018年第5期74-76,共3页GuangZhou Chemical Industry

摘　　要：饮用水中铬含量超标将导致致畸、致癌、致突变。文章以废弃的鸡蛋壳为原料、尿素为添加剂,采用水热合成法合成新型的碳羟磷灰石吸附剂,用以处理含铬废水。研究了pH、吸附剂投加量、吸附时间、六价铬初始质量浓度、反应温度等对吸附含铬废水中六价铬效果的影响。结果表明:室温下,不调节原水pH,吸附剂投加量为4 g/L,吸附时间为20 min左右,对初始浓度为50 mg/L的模拟含铬废水其吸附容量达到0.26 mg/g。Excessive chromium content in drinking water will lead to teratogenesis,carcinogenesis and mutagenesis.Using hydrothermal method,a new process for carbonate hydroxyapatite(CHAP)synthesis by eggshell waste and urea was studied for treating the hexavalent chromium from waste water.Some influencing factors such as pH,dosage of adsorbent,contact time,initial concentration of hexavalent chromium and contact temperature in wastewater which might influence the adsorption performance were investigated.The results showed that when the pH of raw water was not adjusted,the dosage of adsorbent was 4 g/L,the adsorption time was 20 min at room temperature,the adsorption capacity of simulated chromium containing wastewater with initial concentration of 50 mg/L was 0.26 mg/g.

关 键 词：含铬废水 吸附剂 碳羟磷灰石 

分 类 号：X703.1[环境科学与工程—环境工程]