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磷酸活化-微波热解改性污泥对镉的吸附性能

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张纯, 张伟, 汪彩文. 磷酸活化-微波热解改性污泥对镉的吸附性能[J]. 环境工程学报, 2014, 8(8): 3299-3303.
引用本文: 张纯, 张伟, 汪彩文. 磷酸活化-微波热解改性污泥对镉的吸附性能[J]. 环境工程学报, 2014, 8(8): 3299-3303.
shu
Zhang Chun, Zhang Wei, Wang Caiwen. Adsorption of modified municipal sludge with phosphoric acid activation and microwave pyrolysis on Cd2+ ions[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3299-3303.
Citation: Zhang Chun, Zhang Wei, Wang Caiwen. Adsorption of modified municipal sludge with phosphoric acid activation and microwave pyrolysis on Cd2+ ions[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3299-3303.
shu

磷酸活化-微波热解改性污泥对镉的吸附性能

  • 1.

    湖南城市学院市政与测绘工程学院, 益阳 413000

  • 基金项目:

    湖南省教育厅科学研究重点项目（11A022）

  • 中图分类号: X703

Adsorption of modified municipal sludge with phosphoric acid activation and microwave pyrolysis on Cd2+ ions

  • 1.

    College of Municipal and Mapping Engineering, Hunan City University, Yiyang 413000, China

  • Fund Project:

  • 摘要: 以城市污水处理厂剩余污泥为原料，利用磷酸活化-微波热解制取改性污泥。以此污泥作为吸附剂，对含Cd2+废水进行了吸附实验研究。考察了溶液反应时间、Cd2+浓度、pH值和吸附剂用量对镉吸附去除效果的影响；利用等温吸附实验作出吸附等温线，并考察了改性污泥吸附剂吸附Cd2+的动力学方程。实验结果表明，改性污泥对Cd2+有良好的吸附性能，吸附最佳pH值为6.0，吸附较好地符合一级动力学吸附模型和Langmuir-Freundlich等温吸附方程，吸附为物理吸附，吸附反应发生12 h后达到吸附平衡。
    Abstract: Modified sludge was prepared with phosphoric acid activation and microwave pyrolysis by use of municipal sludge as raw material. The application of this sludge used for adsorbing Cd2+ was studied. The effects of reaction time,initial concentrations of Cd2+, the initial pH and adsorbent dosage on the adsorption capacity were investigated. The absorption isotherm was drawn and the dynamics equation was also studied. The results showed that the adsorption performance of modified carbon made from municipal sludge is better. The optimum pH value is 6.0.The experimental data well fit the first-order kinetics process and Langmuir-Freundlich equations. The reactive process is physical adsorption. The adsorption equilibrium time for modified sludge adsorbing is 12 hours.
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  • [1] Bulgariu D., Bulgariu L. Equilibrium and kinetics studies of heavy metal ions biosorption on green algae waste biomass. Bioresour. Technol.,2012,103(1): 489-493
    [2] Jian-Long Hu, Xu-Wen He, Chun-Rong Wang, et al. Cadmium adsorption characteristic of alkali modified sewage sludge. Bioresour. Technol., 2012,121(4): 25-30
    [3] Alemayehu E., Lennartz B. Virgin volcanic rocks: Kinetics and equilibrium studies for the adsorption of cadmium from water. J. Hazard. Mater.,2009,169(1-3): 395-401
    [4] Nancy V. Perez-Aguilar, Paola E. Diaz-Flores, Jose R.Rangel-Mendez. The adsorption kinetics of cadmium by three different types of carbon nanotubes. J. Colloid Interface Sci., 2011, 364(2): 279-287
    [5] Hardiljeet K. Boparai, Meera Joseph, Denis M. O’Carroll. Kinetics and thermodynamics of cadmium ion removal by adsorption onto nano zerovalent iron particles. J. Hazard. Mater., 2011, 186(1-3): 458-465
    [6] Z.Z. Li, T. Katsumi, S. Imaizumi, et al. Cd(Ⅱ) adsorption on various adsorbents obtained from charred biomaterials. J. Hazard. Mater., 2010, 183(1-3): 410-420
    [7] F.Y. Wang, H. Wang, J.W. Ma. Adsorption of cadmium(Ⅱ) ions from aqueous solution by a new low-cost adsorbent-Bamboo charcoal. J. Hazard. Mater., 2010, 177(1-3): 300-306
    [8] Garg U., Kaur M.P., Jawa G.K., et al. Removal of cadmium (Ⅱ) from aqueous solutions by adsorption on agricultural waste biomass. J. Hazard. Mater., 2008, 154(5): 1149-1157
    [9] 马燕娜. 微波改性活性炭及其去除苯胺和Cr(Ⅵ)的研究.长沙:湖南大学硕士学位论文,2009.31-32 Ma Yanna. Study on microwave modified activated carbon and its removal of aniline and Cr(Ⅵ). Changsha: Master Dissertation of Hunan University, 2009.31-32(in Chinese)
    [10] Argun M.E. Use of clinoptilolite for the removal of nickel ions from water: Kinetics and thermodynamics. J. Hazard. Mater., 2008, 150(3): 587-595
    [11] Torres-Pérez J., Solache-Ríos M., Colín-Cruz A. Sorption and desorption of dye Remazol yellow onto a mexican surfactant-modified clinoptilolite-rich tuff and a carbonaceous material from pyrolysis of sewage sludge. Water, Air Soil Pollut., 2008, 187(6): 303-313
    [12] Wu Jun, Zhang Hua,He Pinjing. Cr(Ⅵ) removal from aqueous solution by dried activated sludge biomass. J.Harzard.Mater.,2010,176(3): 697-703
    [13] Cortés-Martínez R., Solache-Ríos M., Martínez-Miranda V., et al. Removal of cadmium by natural and surfactant-modified mexican zeolitic rocks in fixed bed columns. Water, Air Soil Pollut., 2009, 196(6): 199-210
    [14] Dal Bosco S.M., Jimenez R.S., Carvalho W.A. Removal of toxic metals from wastewater by Brazilian natural scolecite. J. Colloid Interface Sci., 2005, 281(2): 424-431
    [15] Fonseca M.G., Oliveira M.M., Arakaki L.N.H. Removal of cadmium, zinc, manganese and chromium cations from aqueous solution by a clay mineral. J. Hazard. Mater., 2006, 137(9): 288-292
    [16] Hammaini A., Gonzlez F., Ballester A., et al. Biosorption of heavy metals by activated sludge and the desorption characteristics. J. Environ. Manage., 2007, 84(4): 419-426
    [17] Xuejiang Wang, Xia Liang, Yin Wang, et al. Adsorption of Copper (Ⅱ) onto activated carbons from sewage sludge by microwave-induced phosphoric acid and zinc chloride activation. Desalination,2011(1-3):278,231-237
    [18] Nakagawa Y.,Molina-Sabio M.,Rodriguez-Reinoso F. Modification of porous structure along the preparation of activated carbon monoliths with H3PO4 and ZnCl2. Microporousand Mesoporous Material,2007,103 (9): 29-34
    [19] 张伟,杨柳,李黎武,等. 磷酸活化-微波热解法制备污泥吸附剂. 环境工程学报,2013, 7(7): 2699-2704 Zhang Wei, Yang Liu, Li Liwu,et al. Preparation of sludge adsorbents by phosphoric acidactivation-microwave pyrolysis method. Chinese Jounral of Environmental Engineering, 2013, 7(7): 2699-2704(in Chinese)
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出版历程
  • 收稿日期:  2014-04-16
  • 刊出日期:  2014-07-31
张纯, 张伟, 汪彩文. 磷酸活化-微波热解改性污泥对镉的吸附性能[J]. 环境工程学报, 2014, 8(8): 3299-3303.
引用本文: 张纯, 张伟, 汪彩文. 磷酸活化-微波热解改性污泥对镉的吸附性能[J]. 环境工程学报, 2014, 8(8): 3299-3303.
shu
Zhang Chun, Zhang Wei, Wang Caiwen. Adsorption of modified municipal sludge with phosphoric acid activation and microwave pyrolysis on Cd2+ ions[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3299-3303.
Citation: Zhang Chun, Zhang Wei, Wang Caiwen. Adsorption of modified municipal sludge with phosphoric acid activation and microwave pyrolysis on Cd2+ ions[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3299-3303.
shu

磷酸活化-微波热解改性污泥对镉的吸附性能

  • 1. 湖南城市学院市政与测绘工程学院, 益阳 413000
  • 收稿日期:  2014-04-16
基金项目:

湖南省教育厅科学研究重点项目（11A022）

摘要: 以城市污水处理厂剩余污泥为原料，利用磷酸活化-微波热解制取改性污泥。以此污泥作为吸附剂，对含Cd2+废水进行了吸附实验研究。考察了溶液反应时间、Cd2+浓度、pH值和吸附剂用量对镉吸附去除效果的影响；利用等温吸附实验作出吸附等温线，并考察了改性污泥吸附剂吸附Cd2+的动力学方程。实验结果表明，改性污泥对Cd2+有良好的吸附性能，吸附最佳pH值为6.0，吸附较好地符合一级动力学吸附模型和Langmuir-Freundlich等温吸附方程，吸附为物理吸附，吸附反应发生12 h后达到吸附平衡。

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