Improving vanadium extraction from stone coal via combination of blank roasting and bioleaching by ARTP-mutated Bacillus mucilaginosus

作     者：Ying-bo DONG Yue LIU Hai LIN Chen-jing LIU 董颖博;刘悦;林海;刘陈静

作者机构：School of Energy and Environmental EngineeringUniversity of Science and Technology BeijingBeijing 100083China Beijing Key Laboratory on Resource-oriented Treatment of Industrial PollutantsBeijing 100083China 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2019年第29卷第4期

页      面：849-858页

核心收录：

学科分类：080603[工学-有色金属冶金] 0806[工学-冶金工程] 08[工学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0813[工学-建筑学] 0703[理学-化学] 0814[工学-土木工程] 0702[理学-物理学] 

基　　金：Project(2015ZX07205003)supported by Major Science and Technology Program for Water Pollution Control and Treatment of China 

主　　题：atmospheric and room temperature plasma(ARTP) Bacillus mucilaginosus vanadium-bearing stone coal blank roasting bioleaching 

摘      要：In order to improve leaching efficiency of vanadium from stone coal,the combination of blank roasting and bioleaching using Bacillus mucilaginosus(***)mutants was *** atmospheric and room temperature plasma(ARTP)technique was used to generate *** *** results showed that a mutant *** BM-50,after ARTP irradiation for 50 s,had the highest acid *** total content of the organic acid produced by *** BM-50 was nearly doubled compared with the wild strain after 2 *** 20 days,vanadium leaching rate with *** BM-50 reached 18.2%,which was improved compared with the original bacteria(15.3%).A pretreatment via blank roasting for stone coal further improved the vanadium dissolution by bioleaching,namely,68.3%vanadium was extracted,which was much higher than that without blank *** is shown that bioleaching by bacterial mutants by ARTP irradiation combined with blank roasting has great potential for improving vanadium recovery from low-grade vanadium bearing stone coal.