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; (4) where Ce denotes the equilibrium concentration of the heavy metal solution, Qe is the adsorption capacity at equilibrium, KL...Trans. Nonferrous Met. Soc. China 23(2013) 3095-3103 Adsorption of Cr(VI) by modified chitosan from heavy-metal polluted water of Xiangjiang River, China Yun-qin LIU1,2, Yun-guo LIU1, Xin-jiang HU1......
is low in SG and IRM; 2) the high content of Fe which is alkali metal has a strong buffering for acid solution to deduce the leaching of heavy metals; 3) on the other hand, As would be absorbed... Research Center for Control and Treatment of Heavy Metal Pollution, Central South University, Changsha 410083, China Received 17 November 2014; accepted 10 March 2015 Abstract: A new process......
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(II) ions on the surface of adsorbent(nanocomposite) increases with the increase in solution pH, contact time,and adsorbent dosage. Furthermore, the maximum removal rates of heavy metals ions reach...Synthesis of mesoporous silica/iron oxide nanocomposites and application of optimum sample as adsorbent in removal of heavy metalsShirin Kalantari,Mardali Yousefpour,Zahra TaherianFaculty......
Identification and heavy metal toxicity assessment upon Fe2+-oxidizing ability of Leptospirillum-like bacterium isolated from acid mine drainage GAO Jian1, DING Jian-nan2, KANG Jian1, WU Xue-ling2... oxidation ability; heavy metal resistance 嗜酸细菌,如硫杆菌属的嗜酸氧化亚铁硫杆菌和嗜酸氧化硫硫杆菌[1] 以及钩端螺旋菌属的氧化亚铁钩端螺旋菌等,在低品位硫化矿的生物浸出过程中扮演了极为重要的角色[2-3].在这个浸出过程中,亚铁离子的生物氧化被证明是非常关键的一个环节[4].然而,在浸矿细菌的亚铁离子氧化能力与它们能够耐受浸矿体系中可溶性金属离子浓度的......
氯化锰溶液的净化工艺李军旗1,张国才1,毛小浩1,刘亮1,段丽1(1.贵州省贵阳市贵州大学材料与冶金学院)摘 要:研究以工业废盐酸浸出低品位菱锰矿制得的氯化锰溶液净化工艺,主要包括除重金属和除钙,镁两部分,探讨金属锰粉去除重金属的净化效果以及用草酸和硫酸锰搭配使用去除钙和镁的新工艺.结果表明,氯化锰溶液采用金属锰粉作为重金属净化剂除杂效果较好,使用草酸和硫酸锰去除钙和镁杂质,不但实现了较好的除钙和除镁效果,而且得到了纯度和价值较高的副产品草酸钙,产品质量最终也达到了HG-T3816-2006标准.......
J. Cent. South Univ. (2016) 23: 240-248 DOI: 10.1007/s11771-016-3067-3 Oil–water two-phase flow pattern analysis with ERT based measurement and multivariate maximum Lyapunov exponent TAN Chao(谭超.... The measurement data of the ERT are treated as a multivariate time-series, thus the information extracted from each electrode represents the local phase distribution and fraction change......
group were selected and grown on the nutrient solution supplemented with Mn2+, Zn2+ and Cd2+ of different concentrations. The metal concentrations in solution were determined at 0, 2, 4, 6, 8 and 10...+ and Cd2+ in solution decreases by 35.4%-49.7%, 38.1%-40.0% and 50.8%-53.7%, respectively. Concentrations of heavy metals in shoots and roots of phytolacca americana Linn all increase progressively......
410083, China; 2. Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China; 3. Water Pollution Control Technology Key Lab of Hunan Province... was introduced to evaluate the carcinogenic and non-carcinogenic concerns of heavy metal(loid)s to human health. This research will help to optimize water monitoring locations and establish pollution reduction......
avoided. Thus, in this ALE framework of sheet metal extrusion, DG method is used for the numerical advection solution in the following schemes: where is the value at the integration point after... in Engineering, 1999, 44(10): 1397-1428. [16] OLOVSSON L, NILSSON L, SIMONSSON K. An ALE formulation for the solution of two-dimensional metal cutting problems [J]. Computers and Structures, 1999, 72......
