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| 1 | 农林废弃物吸附脱除废水中重金属研究进展显示文摘含重金属的工业废水对环境的危害是相当巨大的,生物吸附法可有效去除废水中的重金属。本文总结了常见的农林废弃物和化学改性剂在吸附重金属方面的研究现状,指出了生物吸附的影响因素及吸附工艺优化,阐述了生物吸附法的吸附机理及解吸处理,介绍了生物吸附的热力学和动力学模型及相关参数,同时指出了生物吸附法存在的问题,并展望其未来的发展前景。农林废弃物具有来源广、成本低、可再生等优点,用于重金属废水处理时,可实现资源的综合利用,具有良好的工业前景。 | 文永林 刘攀 汤琪 | 2016 | 化工进展2016，35，4： | 38 |
| 2 | Biosorption potential of cerium ions using Spirulina biomass显示文摘Two types of cyanobacteria of the genus Arthrospira(commonly known as Spirulina) were tested for biosorption of cerium(III) ions from aqueous solutions. An endemic type(ES) found in the northern Negev desert, Israel, and a commercial powder(CS) were used in this study. Biosorption was evaluated as a function of p H, contact time, initial metal concentration, number of sorption-desorption cycles, and salt concentration. The optimum p H range for biosorption was found to be 5.0–5.5. The kinetic characteristics of both Spirulina types were found to be highly compatible with a pseudo-second order kinetic model. The adsorption isotherms of both types were found to be well-suited to Langmuir and Freundlich adsorption isotherms. Maximum biosorption uptakes, according to the Langmuir model, were 18.1 and 38.2 mg/g, for ES and CS, respectively. Sodium chloride concentrations of up to 5 g/L had a minor effect on cerium biosorption. Desorption efficiency was found to be greater than 97% with 0.1 mol/L HNO_3 after three sorption-desorption cycles, without significant loss in the biosorption capacity. The results indicated the feasibility of cerium recovery from industrial wastes using Spirulina biomass. | David Sadovsky Asher Brenner Boaz Astrachan Boaz Asaf Raphael Gonen | 2016 | Journal of Rare Earths2016，34，6： | 4 |
| 3 | 基于响应面法的改性玉米芯吸附水中Zn^(2+)的工艺条件优化及机理研究显示文摘运用玉米芯作为生物吸附剂去除水溶液中Zn^(2+)。以单因素控制变量法考察了玉米芯用量、吸附时间、改性盐浓度和摇床转速对吸附性能的影响,并运用响应面法对吸附条件进行优化,通过吸附等温线、吸附动力学和热力学研究来探讨吸附机理。结果表明,当Zn^(2+)初始浓度为50 mg/L、改性盐浓度为0.26%、玉米芯用量为20 g/L、转速为203 r/min,于30℃的恒温振荡器中振荡吸附反应35 min后,吸附率可达80.40%。玉米芯对水溶液中Zn^(2+)的吸附是一个自发的吸附过程,其吸附行为符合二级反应速率方程和Langmuir吸附等温式,具有一定的应用前景。 | 姜春红 赵研 王鹏 | 2017 | 环境保护科学2017，43，2： | 2 |
| 4 | 农业废弃物吸附稀土离子的研究进展显示文摘稀土元素在工业上大量应用的同时,给人类身体健康和生态环境带来了危害,近年来引起了广泛关注.研究发现吸附法相比其他传统水处理方法具有效果较好、操作简单、成本较低等优点,它是消除稀土离子危害的最具潜力的方法之一;而农业废弃物吸附剂因是农业副产物具有廉价的特性,且部分农业废弃物吸附稀土离子时吸附量大、反应速率快,可作为主要研究对象.文中对农业废弃物吸附材料吸附稀土离子的机理、吸附影响因素、吸附应用与吸附模型研究进展进行总结评述,并对农业废弃物吸附稀土离子的发展方向进行展望. | 田长顺 石亮 | 2019 | 有色金属科学与工程2019，10，4： | 2 |
| 5 | Effective adsorption of quadrivalent cerium by synthesized laurylsulfonate green rust in a central composite design显示文摘The layered laurylsulfonate intercalated green rust(lauryl-S GR) was synthesized to evaluate the influence of synthesis parameters and aqueous conditions on the adsorption of CeⅣ.The maximum adsorption capacity of 305.58 mg/g by lauryl-S GR was predictably obtained.The pseudo-first-order kinetic model was appropriate in fitting the whole uptake process in a weak acid environment.Three isotherm models including Langmuir, Freundlich, and Tempkin were all reliable in depicting the isotherm adsorption process.The maximum monolayer adsorption capacity of lauryl-S GR towards CeⅣ was 315.46 mg/g.Ce species including CeO and Ce_(2)O_(3) besides CeO_(2) were matched in the XPS distribution, directly indicating the reduction reaction brought by FeⅡ in the GR occurred to hydrated CeⅣ ions during the adsorption.Nano-sized Ce particles attached to the lauryl-S GRs after the adsorption experiments were observed in the morphological characterization.Flocculated materials were formed on the surface of the lauryl-S GR at a pH of 7, which further reduced the active sites and disrupted the continuous uptake of CeⅣ to the lauryl-S GR.This study expands the application of GRs and supplies an ideal iron-based material for the construction of the affiliated recovery pathway to the traditional separation of Ce. | Tao Huang Shu-wen Zhang Juan Xie Lulu Zhou Long-fei Liu | 2021 | Journal of Environmental Sciences2021，33，9： | 0 |
| 6 | 井下涡轮发电机叶片结构参数匹配分析显示文摘针对小井眼钻井技术井下仪器稳定的供电需求,设计了一款磁耦合式井下涡轮发电机。同时对涡导轮叶片结构参数进行了设计。为提高涡轮发电机的工作性能,对涡轮发电机涡导轮叶片结构参数进行研究设计优化。采用数值模拟分析方法,建立基本模型结构参数和流域划分模型。在转速2000 r/min、流速15 L/s情况下,通过单因素模拟实验,对叶片的单一参数进行了提取分析;通过响应曲面法基于Box-Behnken设计试验,对涡导轮叶片参数进行优化。研究分析表明:在转速和流量一定的情况下,通过单因素以及响应曲面法得到的叶片结构参数组合,其效率明显改善。 | 席文奎 贾超 孙东鑫 王科强 | 2023 | 机电工程技术2023，52，2： | 0 |
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