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白土-秸秆基活性炭的制备及对垃圾渗滤液COD的吸附

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曾凡, 李勇, 陈顺强, 赵先, 胡辉, 廖利. 白土-秸秆基活性炭的制备及对垃圾渗滤液COD的吸附[J]. 环境工程学报, 2017, 11(9): 5188-5194. doi: 10.12030/j.cjee.201609125
引用本文: 曾凡, 李勇, 陈顺强, 赵先, 胡辉, 廖利. 白土-秸秆基活性炭的制备及对垃圾渗滤液COD的吸附[J]. 环境工程学报, 2017, 11(9): 5188-5194. doi: 10.12030/j.cjee.201609125
shu
ZENG Fan, LI Yong, CHEN Shunqiang, ZHAO Xian, HU Hui, LIAO Li. Preparation of activated clay-stalk based activated carbon and its adsorption of COD in landfill leachate[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 5188-5194. doi: 10.12030/j.cjee.201609125
Citation: ZENG Fan, LI Yong, CHEN Shunqiang, ZHAO Xian, HU Hui, LIAO Li. Preparation of activated clay-stalk based activated carbon and its adsorption of COD in landfill leachate[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 5188-5194. doi: 10.12030/j.cjee.201609125
shu

白土-秸秆基活性炭的制备及对垃圾渗滤液COD的吸附

  • 1.

    华中科技大学环境科学与工程学院, 武汉 430074

  • 2.

    文华学院城市建设工程学部, 武汉 430074

  • 基金项目:

    国家科技支撑计划（2012BAC18B02）

  • 中图分类号: X705

Preparation of activated clay-stalk based activated carbon and its adsorption of COD in landfill leachate

  • 1.

    College of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

  • 2.

    Department of Urban Construction Engineering, Wenhua College, Wuhan 430074, China

  • Fund Project:

摘要

  • 摘要: 以活性白土与玉米秸秆为原材料，KOH为活化剂，高温热解制备白土-秸秆基活性炭，研究其物化性质及其对填埋场渗滤液中COD的吸附能力。考察活性炭投加量、吸附时间和溶液pH对COD去除率的影响，并用吸附等温线对吸附数据进行拟合。结果表明，适量的活化剂可以提高活性炭的碘吸附值和BET表面积，碱料比为0.4时，二者达到最大值，分别为342.9 mg·g-1、420.34 m2·g-1；最佳活性炭表面呈不规则的多孔状，以中孔为主，最佳实验条件下对COD的去除率可达84%；活性炭对COD的吸附符合Langmuir和Freundlich等温模型。
    Abstract: Activated clay and corn stalk were used to prepare clay-stalk based activated carbon by high-temperature pyrolysis, and the activator was KOH. The physical and chemical properties and absorption characteristics of COD in landfill leachate were studied. The effects of activated carbon dosage, adsorption time and solution pH on COD removal were discussed and the adsorption isotherms were fitted. The results showed that an appropriate amount of activator could improve the iodine value and BET surface area of activated carbon, which could be 342.9 mg·g-1 and 420.34 m2·g-1 as the solid to alkali ratio was 0.4.The surface of the best carbon was irregular and porous, and porous structure was mainly mesoporous. The COD removal rate was 84%. The adsorption experimental data were fitted by both Langmuir and Freundlich isotherm models
  • [1] 周品,谷麟,饶姗姗,等.秸秆-污泥复合基活性炭的制备及其对1,2,4-酸氧体的吸附特性[J].环境化学,2013,32(1):106-111
    [2] 史蕊,李依丽,尹晶,等. 玉米秸秆活性炭的制备及其吸附动力学研究[J]. 环境工程学报,2014,8(8):3428-3432
    [3] 黄大成,王惠松,邹亚娟,等. 常压制备秸秆活性炭对水溶液中磷元素的吸附[J]. 环境工程学报,2015,9(3):1183-1188
    [4] 何莹,舒威,廖筱锋,等.污泥-秸秆基活性炭的制备及其对渗滤液COD的吸附[J]. 环境工程学报,2015,9(4):1663-1669
    [5] 陈友岚,李炳堂.污泥秸秆活性炭深度处理垃圾渗滤液的研究[J]. 环境污染与防治,2014,36(2):67-70
    [6] RIVAS F J, BELTRAN F, CARVALHO F, et al. Study of different integrated physical-chemical+adsorption processes for landfill leachate remediation[J]. Industrial & Engineering Chemistry Research,2005,44(8):2871-2878
    [7] RIVAS F J, BELTRAN F J, GIMENO O, et al. Adsorption of landfill leachates onto activated carbon:Equilibrium and kinetics[J]. Journal of Hazardous Materials,2006,131(1/2/3):170-178
    [8] CHEN X, JEYASEELAN S, GRAHAM N. Physical and chemical properties study of the activated carbon made from sewage sludge[J]. Waste Management, 2002, 22(7):755-760
    [9] OTERO M, ROZADA F, CALVO L F, et al. Elimination of organic water pollutants using adsorbents obtained from sewage sludge[J]. Dyes & Pigments, 2003, 57(1):55-65
    [10] AHMADPOUR A, DO D D. The preparation of activated carbon from macadamia nutshell by chemical activation[J]. Carbon, 1997, 35(12):1723-1732
    [11] KANG H Y, PARK S S, RIM Y S. Preparation of activated carbon from paper mill sludge by KOH-activation[J]. Korean Journal of Chemical Engineering, 2006, 23(6):948-953
    [12] 谷麟, 周品, 袁海平, 等. 不同活化剂制备秸秆-污泥复配活性炭的机理及性能[J]. 净水技术, 2013, 32(2):61-66
    [13] 谢招娣. 苎麻杆活性炭的制备及其应用研究[D]. 上海:东华大学, 2012
    [14] 黄伟,贾艳秋,孙盛凯.活性炭及其改性研究进展[J].化学工业与工程技术,2006,27(5):39-44
    [15] 何莹. 应用于H2S吸附的污泥-秸秆基活性炭的制备研究[D].武汉:华中科技大学,2015
    [16] LENG C C, PINTO N G. Effects of surface properties of activated carbons on adsorption behavior of selected aromatics[J]. Carbon, 1997, 35(9):1375-1385
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  • 收稿日期:  2016-11-21
  • 刊出日期:  2017-08-26
曾凡, 李勇, 陈顺强, 赵先, 胡辉, 廖利. 白土-秸秆基活性炭的制备及对垃圾渗滤液COD的吸附[J]. 环境工程学报, 2017, 11(9): 5188-5194. doi: 10.12030/j.cjee.201609125
引用本文: 曾凡, 李勇, 陈顺强, 赵先, 胡辉, 廖利. 白土-秸秆基活性炭的制备及对垃圾渗滤液COD的吸附[J]. 环境工程学报, 2017, 11(9): 5188-5194. doi: 10.12030/j.cjee.201609125
shu
ZENG Fan, LI Yong, CHEN Shunqiang, ZHAO Xian, HU Hui, LIAO Li. Preparation of activated clay-stalk based activated carbon and its adsorption of COD in landfill leachate[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 5188-5194. doi: 10.12030/j.cjee.201609125
Citation: ZENG Fan, LI Yong, CHEN Shunqiang, ZHAO Xian, HU Hui, LIAO Li. Preparation of activated clay-stalk based activated carbon and its adsorption of COD in landfill leachate[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 5188-5194. doi: 10.12030/j.cjee.201609125
shu

白土-秸秆基活性炭的制备及对垃圾渗滤液COD的吸附

  • 1. 华中科技大学环境科学与工程学院, 武汉 430074
  • 2. 文华学院城市建设工程学部, 武汉 430074
  • 收稿日期:  2016-11-21
基金项目:

国家科技支撑计划（2012BAC18B02）

摘要: 以活性白土与玉米秸秆为原材料，KOH为活化剂，高温热解制备白土-秸秆基活性炭，研究其物化性质及其对填埋场渗滤液中COD的吸附能力。考察活性炭投加量、吸附时间和溶液pH对COD去除率的影响，并用吸附等温线对吸附数据进行拟合。结果表明，适量的活化剂可以提高活性炭的碘吸附值和BET表面积，碱料比为0.4时，二者达到最大值，分别为342.9 mg·g-1、420.34 m2·g-1；最佳活性炭表面呈不规则的多孔状，以中孔为主，最佳实验条件下对COD的去除率可达84%；活性炭对COD的吸附符合Langmuir和Freundlich等温模型。

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