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and anaerobic-aerobic-flocculation as well as chemical phosphorus removal of hypersaline mustard wastewater are conducted. The optimal operation condition and parameters in pretreatment of mustard... and 35.53 mg/L and the dosage of flocculent (PAC) is 400 mg/L. The anaerobic-aerobic-flocculation combined operation condition and postpositive phosphorous removal with ferrous sulfate are employed......
words: thio-arsenate; removal of arsenic; sulfidation reaction; thermodynamics 随着钨矿资源的不断开发和利用,优质钨资源日益减少,处理品位低,杂质含量高的钨矿已成为钨冶金中一个很现实的问题.这些高杂质的钨矿中,除了杂质元素钼以外,砷的含量也日益增加.而随着硬质合金,电子,国防等工业的发展,对钨制品尤其是对许多尖端用途所... for Mo removal from tungstate solution[J]. The Chinese Journal of Nonferrous Metals, 2001, 11(3): 499-502. [7] 肖若珀. 砷的提取,环保和应用方向[M]. 柳州: 广西金属学会出版社,1992: 58.XIAO Ruo-po. Extraction, environmental protection......
Phosphorus removal mechanism in constructed wetlands with high calcium fly ash as substrateCAO Shi-wei1, 2, CHEN Wei1, JING Zhao-qian2(1. Environmental Science and Engineering, Hohai University, Nanjing 210098, China; 2. College of Civil Engineering, Nanjing Forest University, Nanjing 210037, China)Abstract:In order to strengthen phosphorus removal efficiency of constructed wetlands and expand the reuse......
J. Cent. South Univ. (2018) 25: 2190-2198 DOI: https://doi.org/10.1007/s11771-018-3907-4 Benzohydroxamic acid to improve iron removal from potash feldspar ores CAO Zhan-fang(曹占芳)1, 2, QIU Pei(邱培)1... of the concentrate was 82.55%. Key words: potash feldspar; iron removal; reverse flotation; benzohydroxamic acid Cite this article as: CAO Zhan-fang, QIU Pei, WANG Shuai, ZHONG Hong. Benzohydroxamic acid to improve......
的影响规律.结果如图1所示. 图1 温度和时间对除铁率的影响 Fig. 1 Effect of temperature and time on iron removal efficiency 由图1可见,溶液中的除铁率随着反应时间延长和温度升高而逐渐升高,当反应时间为180 min时,4个温度(170,180,190,200 ℃)下的除铁率分别为91%,92%,92.6... on iron removal efficiency 由图4可见,随着Na2SO4浓度升高,除铁率逐渐增加,当Na2SO4浓度由0 mol/L升高到0.25 mol/L时,除铁率由91%提高至96.3%.除铁率升高与Fe2+的氧化能力密切相关,Na2SO4的加入会使体系中SO42-增多,溶液中会形成大量的FeSO4离子对,它的氧化能力远强于Fe2+,使更多的Fe2+氧化水解形成赤铁矿[10].又因同离......
; 文章编号:1672-7207(2011)04-1156-05 Potential of Phytolacca americana for removal of heavy metals from contaminated waters XUE Sheng-guo1, 2, ZHOU Xiao-hua1, LIU Heng1... 310029, China) Abstract: A greenhouse study was carried out to explore the potential of Phytolacca americana for removal of heavy metals from contaminated waters. The uniform seedlings for each treatment......
保证砷,锑的有效脱除. 关键词:铅阳极泥;碱性加压氧化浸出;脱砷;脱锑 中图分类号: 文献标志码:A Arsenic and antimony removal from bismuth-rich lead anode slime by alkaline pressure oxidation leaching LI Kuo1, XU... dosage, NaOH concentration, ratio of liquid to solid, leaching temperature and leaching time on the arsenic and antimony removal were investigated, and the optimal process conditions were determined......
J. Cent. South Univ. (2018) 25: 709-718 DOI: https://doi.org/10.1007/s11771-018-3775-y Absorption performance of DMSA modified Fe3O4@SiO2core/shell magnetic nanocomposite for Pb2+ removal TIAN Qing... nanocomposite (Fe3O4@SiO2@DMSA) for Pb2+ ions removal from aqueous solutions. The effects of solution pH, initial concentration of Pb2+ions, contact time, and temperature on the amount of Pb2+ adsorbed......
J. Cent. South Univ. (2020) 27: 1780-1789 DOI: https://doi.org/10.1007/s11771-020-4407-x Galerkin-based extended Kalman filter with application to CO2 removal system LV Ming-bo(吕明博), LI Yun-hua(李运华... Nature 2020 Abstract: The carbon dioxide removal system is the most critical system for controlling CO2 mass concentration in long-term manned spacecraft. In order to ensure the controlling CO2 mass......
; 文献标志码:A 文章编号:1672-7207(2021)01-0106-10 Study on co-removal of PM10 and trace elements in coal-fired flue gas enhanced by turbulent agglomeration SHEN Ao, YANG Linjun, WU Xin, DUAN Yufeng... agglomeration was proposed to achieve the synergistic removal of the two kinds of pollutants(PM10 and trace elements). The structure of turbulent device was optimized by numerical simulation study......