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Valence variation of arsenic in bioleaching process of arsenic-bearing gold ore CUI Ri-cheng(崔日成), YANG Hong-ying(杨洪英), CHEN Sen(陈 森), ZHANG Shuo(张 硕), LI Ke-feng(李科峰) School of Materials... leaching; arsenic resistance; oxidant; arsenic-bearing gold ore 1 Introduction Arsenic-bearing gold ore is a common......
宝钢外排综合废水人工湿地生态净化回用处理中试研究徐竟成1,徐立1,黄翔峰1,李光明1,张宜莓2(1.上海市同济大学环境科学与工程学院污染控制与资源化研究重点实验室2.宝山钢铁股份有限公司,上海 201900)摘 要:钢铁企业外排综合废水的处理回用是降低吨钢耗新水量的有效途径.通过宝钢围厂河调研可知,围厂河接纳的废水资源量丰富,但较高的Fe,Mn浓度限制了其资源化利用.研究了将锰砂作为填料应用于人工湿地中处理宝钢外排综合废水,结果表明,锰砂人工湿地可有效去除废水中的Fe,Mn等污染物,出水达到了<城市污水再生利用......
">Ammonia-nitrogen wastewater is produced during the dressing and smelting process of rare-earth ores.Such wastewater includes a very high concentration of NH4+, as well as other ions(e.g., NH4+, RE3+, Al3...Leaching kinetics of ionic rare-earth in ammonia-nitrogen wastewater system added with impurity inhibitors邱廷省1,朱冬梅2,方夕辉1,曾清华1,3,高广阔1,朱华磊11. Faculty of Resource and Environmental Engineering, Jiangxi......
">Ammonia-nitrogen wastewater is produced during the dressing and smelting process of rare-earth ores.Such wastewater includes a very high concentration of NH4+, as well as other ions(e.g., NH4+, RE3+, Al3...Leaching kinetics of ionic rare-earth in ammonia-nitrogen wastewater system added with impurity inhibitors邱廷省1,朱冬梅2,方夕辉1,曾清华1,3,高广阔1,朱华磊11. Faculty of Resource and Environmental Engineering, Jiangxi......
Treatment of simulated wastewater from in situ ching uranium mining byzerovalent iron and sulfate ducing bacteria YI Zheng-ji(易正戟)1, 2, LIAN Bin(连 宾)1, YANG Ying-qun(杨颖群)2, ZOU Jian-ling(邹建陵)2 1... indicate that the reactor filled with both ZVI and SRB biofilms is of better performance than the SRB bioreactor in wastewater basification, desulfurization and U(Ⅵ) fixation. The results imply that the ZVI......
Separation of silver from silver-manganese ore with cellulose as reductant ZHANG Xiao-yun(张小云), TIAN Xue-da(田学达), ZHANG Dong-fang(张东方) College of Chemical Engineering, Xiangtan University... silver-manganese ore with a grade of 3.15×10-4 was concentrated by a combined beneficiation technique including magnetic separation, flotation, reducing leaching and gravity desliming. The major silver......
thinner and even disappeared,in result,Nb recovery was increased.A compre-hensive extraction process combining ore dressing with pyro-hydro-metallurgy was suggested for Baotouniobium resource which...Niobium Extraction from Baotou Iron Ore Containing Niobium周渝生,杨天钧,孟涛,范鹏,董一诚,何旭初摘 要:<正> The experimental results of niobium enrichment in laboratory......
brings more and more threats to environment. So, it is very imperative to research on such wastewater. When the ammonia exists in nickel wastewater, nickel ion and free ammonia can form metal... Treatment of nickel-ammonia complex ion-containing ammonia nitrogen wastewater MIN Xiao-bo(闵小波), ZHOU Min(周 敏), CHAI Li-yuan(柴立元), WANG Yun-yan(王云燕), SHU Yu-de(舒余德) School......
J. Cent. South Univ. Technol. (2011) 18: 704-710 DOI: 10.1007/s11771-011-0751-1 Development of twin wheel creep-feed grinding machine using continuous dressing for machining of aircraft rotary wing... 2011 Abstract: The purpose of this study is to develop a twin wheel creep-feed grinding machine using continuous dressing to machine precise axisymmetric turbine blades that have been difficult......
from copper-bearing gold ore wastewater by ion exchange[J]. Metallic Ore Dressing Abroad, 2005, 42(3): 39-43. [34] 傅建顺, 周展云, 杨惠明. 用硫脲从季铵盐萃取液中反萃金,银,铜的探索[J]. 化学工业与工程, 1990, 7(3): 17-20. FU Jian-shun, ZHOU... on chemical components in auro-cyanide wastewater 1.2 仪器与设备 萃取试验采用自制的柱式鼓泡油膜萃取装置[26].水油两相输送采用恒流计量泵(BT1-100L-LCD,上海琪特分析仪器有限公司生产).鼓气采用市售空压机(GA-81,上海硅莱实业有限公司生产),用玻璃转子流量计 (LZB-3WB,常州爱德克斯仪器仪表有限公司生产)控制气体流速......
