共搜索到19631条信息，每页显示10条信息，共1964页。用时：0小时0分0秒382毫秒
410082, China Received 27 April 2006; accepted 12 September 2006 Abstract: Biosorption of heavy metal ions, such as Cu2+, Cd2+ and Zn2+, was carried out using waste activated sludge from municipal.... The adsorption behaviors of heavy metal ions all have parabolic relationships with pH value. The optimum pH value is between 6 and 10, and the optimum adsorption time is 1 h. In single heavy metal ion......
Comments on"Adsorption behavior of heavy metal ions by carbon nanotubes grown on microsized Al2O3 particles"Yuh-Shan Ho摘 要:<正>Recently,Hsieh and Horng[1]published the paper entitled as above.In section 3-results and discussion, the authors mentioned the first and the second order kinetic models without any quotations.In fact these two kinetic......
the efficiency of the adsorption of cadmium and zinc ions. Key words: cadmium; isotherm model; kinetic adsorption; zinc; nanotechnology 1 Introduction The removal of heavy metal ions from industrial waste water is very important and has attracted the attention of many researchers. Different methods have been used to remove heavy metal ions from aqueous solutions, such as ion exchange, reverse osmosis......
Comparison of heavy metal removal efficiencies infour activated sludge processesYANG Jun(杨军), GAO Ding(高定), CHEN Tong-bin(陈同斌), LEI Mei(雷梅), ZHENG Guo-di(郑国砥), ZHOU Xiao-yong(周小勇)(Center..., Pb and Zn) were investigated in the 17 operating municipal wastewater treatment plants (WWTPs) and compared with those in four main activated sludge processes. Significant differences of heavy metal......
and spectroscopic properties of the 1.53 μm emission from 4I13/2→4I15/2 transition of Er3+ ions in Er3+/Yb3+-codoped Ga-Bi-Pb-Ge heavy metal oxide glass for use in broadband fiber amplifiers. It was noted...Broadband 1.53 μm emission in Er3+-doped Ga-Bi-Pb-Ge heavy metal oxide glasses杨钢锋1,李涛1,21. Key lab of Specially Functional Materials, Ministry of Education, Institute of Optical Communication......
Spectroscopic Properties and Judd-Ofelt Theory Analysis of Er3+-Doped Heavy Metal Oxyfluoride Silicate Glass 胡丽丽1,徐时清1,杨中民1,姜中宏1,张军杰1,戴世勋1 (1.Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China) Abstract:Er3+-doped heavy metal oxyfluoride silicate glass was fabricated and characterized, and the absorption spectrum and fluorescence spectrum......
......
PMBP缩2-氨基苯并噻唑席夫碱/离子液体双水相体系萃取废水中重金属离子的研究陈莉莉1,2,邱祖民1,黄金莲1,徐礼峰2(1.江西省南昌市南昌大学环境科学与工程学院2.江西省南昌市江西师范大学 化学化工学院)摘 要:合成了新型萃取剂1-苯基-3-甲基-4-苯甲酰基-吡唑啉酮-5缩2-氨基苯并噻唑席夫碱(PMBP-2-ABT),并以其为萃取剂,建立了一种用PMBP-2-ABT/离子液体双水相体系萃取重金属离子的新方法.考察了影响萃取效果的各种因素,如金属离子种类,pH值,萃取剂浓度等.结果表明:该萃取体系对重金......
geopolymer can effectively immobilize Cu and Pb heavy metal ions, and the immobilization efficiency reached 90% greater when heavy metals were incorporated in the fly ash geopolymer in the range...Synthesis and Heavy Metal Immobilization Behaviors of Fly Ash based Gepolymer张云升Jiangsu Civil Engineering Materials Key laboratory,Southeast University摘 要: , Pyongyang 999093, DPR of Korea Received 24 April 2013; accepted 9 August 2013 Abstract: A formula was proposed to calculate the distribution of metal ions quantitatively in chemical reaction system... of zinc, iron (III), aluminum, copper and magnesium were calculated. As a result, it shows that the proposed formula is reliable. By the proposed formula, the existence state of metal ions......氢氧化物反应体系中离子分布的计算方法
来源： 《中国有色金属学报(英文版)2013年第12期》——金哲男 郑大录 洪正秀 郑英勋 路殿坤 陈国宝
