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-molybdenum sulfide ores with the Mo-resistant thermophilic bacterium sulfolobus metallics in a membrance biological reactor (MBR) with ion exchange was studied. The results show that the mass... that of the column leaching when the 10% of leaching solution is filtered and ion-exchanged. Key words: membrane biological reactor (MBR); sulfolobus metallics; ultrafiltrateing; ion exchange; nickel......
2010; accepted 21 October 2010 Abstract: The bioleaching of molybdenum from its sulfide ore using a Mo-resistant thermophilic bacterium sulfolobus metallics combined with a membrane biological... 75.59% Ni and 54.33% Mo were leached out in column without membrane under the same conditions. Key words: membrance biological reactor; nickel-molybdenum sulfide ore; sulfolobus metallics; bioleaching......
Sulfolobus metallicus at 65 ℃ XIA Jin-lan(夏金兰)1,2, ZHAO Xiao-juan(赵小娟)1,2, LIANG Chang-li(梁长利)1,2, YANG Yi(杨益)1,2, NIE Zhen-yuan(聂珍媛)1,2, TANG Lu(汤露)1,2, MA Chen-yan(马陈燕)3, ZHENG Lei(郑雷)3, ZHAO Yi-dong(赵屹东)3... and Springer-Verlag Berlin Heidelberg 2012 Abstract: Sulfur speciation transformation during bioleaching of pyrite-containing sphalerite concentrate by thermophile Sulfolobus metallicus (S. metallicus......
高温浸矿菌sulfolobus的生长及浸矿性能李宏煦1,董清海2,苍大强1,王淀佐21. 北京科技大学冶金与生态工程学院教育部生态与循环冶金重点实验室2. 北京有色金属研究总院摘 要:系统地研究了耐高温菌sulfolobus的生长特性.sulfolobus在65℃以上能良好地生长,并对亚铁和元素硫均具有较好的氧化作用;在75℃时,sulfolobus氧化Fe2+和元素硫的活性最强,细菌的生长曲线和细菌氧化Fe2+和元素硫的趋势一致.给出了细菌生长过程溶液SO24-和pH的变化趋势;以黄铜矿精矿为培养基对sulfolobus进行了适应性培养,并在75℃下进行了黄铜矿摇瓶浸出研究.结果显示:适应性驯化后的sulfolobus在黄铜矿精矿上生长与浸矿性能良好;当矿浆质量分数在10%以下,浸出150h,Cu浸......
Adsorption and leaching of chalcopyrite by Sulfolobus metallicus YN24 cultured in the distinct energy sourcesYu-ting Liang,Shan Zhu,Jun Wang,Chen-bing Ai,Wen-qing QinSchool of Minerals Processing and Bioengineering,Central South University摘 要:The chalcopyrite-adsorption characteristics and leaching properties of Sulfolobus metallicus(S. metallicus) YN24......
,Sulfolobus metallicus JCM 9184；瑟杜生金属球菌,Metallosphaera sedula JCM 9185和万座酸菌,Acidianus manzaensis YN25)在不同起始pH值和不同温度条件下对黄铜矿的混合浸出,并对浸矿过程中混合菌群落的动态演替进行分析.结果表明:在起始pH 1.5时的铜浸出率明显高于在起始pH 2.5时的铜浸出率,而65 ℃条件下的铜浸出率高于75 ℃时的铜浸出率.利用限制性长度多态性(RFLP)分析65 ℃,起始pH 1.5条件下的微生物群落演替,结果显示:在黄铜矿的浸出前期Sulfolobus metallicus是占据优势的菌种,而到后期Acidianus manzaensis的比例则会上升,并最后取代Sulfolobus metallicus成为优势种. 关键词:生物浸出；黄铜矿精矿；极端嗜热微生物；微生物群落；演替 中图分......
chalcopyrite bioleaching by mixed thermophilic Archaea culture (Acidianus brierleyi, Metallosphaera sedula, Acidianus manzaensis and Sulfolobus metallicus) at 65 °C was studied. Leaching experiments showed... and passivation phenomenon during chalcopyrite bioleaching by mixed thermophilic Archaea culture (Acidianus brierleyi, Metallosphaera sedula, Acidianus manzaensis and Sulfolobus metallicus) and chemical......
金属离子对硫化裂片菌属生物浸出黄铜矿的影响:用气动式搅拌反应柱和块状矿样进行试验徐新农摘 要:用气动式搅拌反应柱研究了某些金属离子对用硫化裂片菌属(Sulfolobus BC)进行黄铜矿生物浸出过程的影响.考查了Ag,As,Bi,Co,Hg,Mo和Ru,在试验中,每kg精矿中加入了1Og金属,但Mo和Ag的情况例外,分别以每kg 4g Mo和每kg1g Ag的量加入.铋是能提高铜初始溶解速度的唯一金属,而且加入这种金属时能获得比培养液中不加阳离子时更高的最终铜萃取率.此外,用两种块状黄铜矿矿样进行了试验,以便能研究银和铋与矿物的相互作用.每种阳离子的作用机理是不同的,银与黄铜矿表面反应形成一种Ag2S层.这种薄层使矿物表面某一定的部位受纯化作用,并生成沉淀物,同时也促使未被覆盖的表面产生阳极的特性.另......
brierleyi (JCM 8954), Metallosphaera sedula (YN 23), Acidianus manzaensis (YN 25) and Sulfolobus metallicus (YN 24) and their mixture in bioleaching chalcopyrite were compared, which were characterized...), Acidianus manzaensis (A. manzaensis, YN 25) and Sulfolobus metallicus (S. metallicus, YN 24), with widespread occurrence and leaching capacity, were selected to perform the experiments. Hence, two......
albertensis)；以及中度嗜热硫氧化菌株,如嗜酸喜温硫杆菌(At. caldus)等[6-8].此外,丁建南等[9-10]还从云南腾冲的高温含硫温泉中筛选得到多株极度嗜热硫氧化菌株,包括嗜热硫氧化硫杆菌(Sulfobacillus thermosulfidooxidans), 嗜热金属硫化叶菌(Sulfolobus metallicus)和万座嗜酸两面菌(Acidianus manzaensis...纯化到4个菌属,如表1所示,它们分别是硫化叶菌(Sulfolobus),金属球菌(Metallosphaera),嗜酸两面菌(Acidianus),憎叶菌属(Stygiolobus)和硫磺球形菌属(Sulfurisphaera).硫化叶菌Sulfolobus是研究较多古生菌属,生存温度为55~80 ℃,生存pH值 0.9~5.8,能以还原型硫化合物和简单有机物兼性化能自养和异养生长[25]；金属球......
