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砷酸铜;沉淀;二氧化硫;还原;三氧化二砷 中图分类号:X703 文献标识码:A 文章编号:1672-7207(2009)01-0048-07 Arsenic trioxide made...: Preparation arsenic trioxide from As-containing wastewater by precipitation-reduction method was studied. Sodium hydroxide was added in the As-containing wastewater to adjust pH value to 6......
;吸附;再生 中图分类号:X703.1 文献标志码:A 文章编号:1672-7207(2019)04-0787-09 Arsenic removal... conditions, the adsorbed arsenic can be easily desorbed from MPA. The optimal mass fraction is 1% using NaOH as regenerating solution, and the best temperature for desorption is 55 ℃. The adsorption rate......
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; 文献标志码:A 文章编号:1672-7207(2012)03-0821-06 Effect of valences of arsenic, antimony on removal rates of arsenic, antimony and bismuth in copper... Corporation Limited, Jinchang 737100, China) Abstract: Arsenic(Ⅴ) and antimony(Ⅴ) in copper electrolyte were reduced to arsenic(Ⅲ) and antimony(Ⅲ) with the aid of sulfur dioxide, and n(As(Ⅴ))/n(As(T......
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Trans. Nonferrous Met. Soc. China 30(2020) 1943-1955 Physicochemical and environmental properties of arsenic sulfide sludge from copper and lead-zinc smelter Li-wei YAO1, Xiao-bo MIN1,2, Hui XU1...: Physicochemical properties of arsenic sulfide sludge (ASS) from copper smelter (ASS-I) and lead-zinc smelter (ASS-II) were examined by XRD, Raman spectroscopy, SEM-EDS, TG-DTA, XPS and chemical phase......
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计(上海雷磁仪器有限公司生产),实验室用超纯水机(四川沃特尔水处理设备有限公司生产)等. 表1 含砷废水的主要化学组成 Table 1 Major chemical composition of arsenic-containing wastewater (g/L) 1.2 实验过程 向含砷废水中加入一定量的七水硫酸亚铁并调节pH之后,加入到高压釜内,工业氮气..., 刘志宏, 李玉虎, 刘智勇, 李启厚. 苛性碱溶液氧压浸出高砷锑烟尘[J]. 中南大学学报(自然科学版), 2014, 45(5): 1390-1396. ZHANG Xu, LIU Zhi-hong, LI Yu-hu, LIU Zhi-yong, LI Qi-hou. Oxygen pressure leaching of arsenic and antimony bearing flue......