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" name="ChDivSummary">The enrichment of copper from copper–cyanide wastewater by solvent extraction was investigated using a quaternary ammonium salt as an extractant. The influences of important...Enrichment of copper and recycling of cyanide from copper–cyanide waste by solvent extractionTeng-yue Gao1,Kui-ren Liu1,Qing Han1,Bin-shi Xu21. Key Laboratory of Ecological Utilization of Multi-metal......
针-板电极脉冲放电处理含氰废水研究章英慧1,李胜利2(1.湖南省长沙市湖南城建职业技术学院湖南建筑高级技工学校2.华中科技大学)摘 要:采用针-板电极脉冲放电处理含氰废水,分别研究了溶液初始pH值,放电时间,气流量,气体种类及放电方式等试验条件对氰化物去除率的影响.试验结果表明:氰化物在pH值为9~10时去除率较高,且随着反应时间的延长,气流量的增加而增加,通入空气时氰化物的去除效果好于通入氮气时的去除效果.关键词:脉冲放电; 等离子体; 含氰废水......
J. Cent. South Univ. (2020) 27: 1495-1502 DOI: https://doi.org/10.1007/s11771-020-4385-z Dissolution of gold in chalcopyrite-containing cyanide solutions YANG Wei(杨玮)1, 2, ZHANG Kai(张凯)1, 2, WANG... and Springer-Verlag GmbH Germany, part of Springer Nature 2020 Abstract: The gold dissolution in anoxic cyanide solution in the presence of chalcopyrite was studied with a rotating disc electrode......
Co-intensification of cyanide leaching gold by mercury ions and oxidant LI Qian(李 骞), JIANG Tao(姜 涛), YANG Yong-bin(杨永斌), LI Guang-hui(李光辉), GUO Yu-feng(郭宇峰), QIU Guan-zhou(邱冠周) School... that under low cyanide concentration, gold cyanide process is controlled by CN- transfer, while at higher cyanide concentration, there forms passivation on gold surface. Therefore, chemical oxidation......
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... wastewater in order to remove nickel and ammonia simultaneously in one technological process. The relationship among pH, the concentration of nickel ammonia complex ion and total ammonia concentration......
海水与淡水中氰化物光化学降解的对比研究安路阳1,薛文平1,尤飞1,姜雪1(1.辽宁省大连市大连工业大学化工与材料学院)摘 要:氰化物的光化学降解是水中氰化物污染去除的重要途径之一,但在不同水体中氰化物的降解差异较大.文中对含氰海水与淡水进行了不同自然光照条件下的降解模拟试验.试验结果表明,光照越强,温度越高,氰化物降解越快;在相同试验条件下,氰化物在海水中的降解速率高于淡水.同时,还进行了紫外光照射条件下加入光催化剂TiO2的含氰海水降解试验,反应150min即可达到排放标准要求.对降解反应的动力学进行了分析,......
J. Cent. South Univ. (2012) 19: 1679-1684 DOI: 10.1007/s11771-012-1193-0 Magnetic field assisted electrocatalytic oxidation of organic pollutants in electroplating wastewater WANG Zhen(王震), YE Kuan... University Press and Springer-Verlag Berlin Heidelberg 2012 Abstract: To degrade the organic compounds in the electroplating wastewater, magnetic field was tentatively introduced into electrocatalytic......
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, the relation between concentration of Cr (Ⅵ) and conductivity of water is investigated, the effect of electrodialysis (ED) for different wastewater is also studied. And several parameters of importance... is the increase of Na+ and Cl- ions. The 93.8%-100% of ions from wastewater both in ED and CP/ED systems was removed successfully. The results of experiments indicate that the CP/ED system is a feasible method......
J. Cent. South Univ. (2012) 19: 1685-1692 DOI: 10.1007/s11771-012-1194-z Dyestuff wastewater treatment by combined SDS-CuO/TiO2 hotocatalysis and sequencing batch reactor XU Xuan(徐璇)1, JI Fang-ying(吉... technology of SDS-CuO/TiO2 photocatalysis and sequencing batch reactor (SBR) were applied to treating dyestuff wastewater. Photocatalysis was carried out in a spiral up-flow type reactor as pre-treatment......