生物质炭对溶液中Cd2+的吸附

耿勤, 张平, 廖柏寒, 李科林, 陈全超, 冉宇光. 生物质炭对溶液中Cd2+的吸附[J]. 环境工程学报, 2015, 9(4): 1675-1679. doi: 10.12030/j.cjee.20150425
引用本文: 耿勤, 张平, 廖柏寒, 李科林, 陈全超, 冉宇光. 生物质炭对溶液中Cd2+的吸附[J]. 环境工程学报, 2015, 9(4): 1675-1679. doi: 10.12030/j.cjee.20150425
Geng Qin, Zhang Ping, Liao Bohan, Li Kelin, Chen Quanchao, Ran Yuguang. Adsorption of Cd2+ in aqueous solution by biochars[J]. Chinese Journal of Environmental Engineering, 2015, 9(4): 1675-1679. doi: 10.12030/j.cjee.20150425
Citation: Geng Qin, Zhang Ping, Liao Bohan, Li Kelin, Chen Quanchao, Ran Yuguang. Adsorption of Cd2+ in aqueous solution by biochars[J]. Chinese Journal of Environmental Engineering, 2015, 9(4): 1675-1679. doi: 10.12030/j.cjee.20150425

生物质炭对溶液中Cd2+的吸附

  • 基金项目:

    农业部 财政部重大专项子课题(农办财函〔2014〕28号)

    国家科技支撑计划项目(2015BAD05B02)

    湖南省重点学科建设项目(2006180)

    湖南省土水污染控制与资源化技术重点实验室资助项目

  • 中图分类号: X703

Adsorption of Cd2+ in aqueous solution by biochars

  • Fund Project:
  • 摘要: 以玉米秸秆、稻壳在350~500℃制成的生物质炭作为吸附剂,研究其对溶液中Cd2+的吸附特性。通过模拟实验,考察了初始pH、生物质炭用量、吸附时间和Cd2+的起始浓度对吸附的影响。结果表明,2种生物质炭对Cd2+的吸附反应适应pH范围较宽(4.0~7.0);玉米秸秆炭和稻壳炭对Cd2+的吸附速度较快,分别在10和20 min时达到吸附平衡;玉米秸秆炭对溶液中Cd2+的吸附遵循Langmuir等温线模型,而稻壳炭对Cd2+的吸附遵循Freundlich等温线模型。在实验设定的条件下,玉米秸秆炭对溶液中Cd2+的吸附能力强于稻壳炭。
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  • [1] 丁洋,靖德兵,周连碧,等.板栗内皮对水溶液中镉的吸附研究.环境科学学报,2011,31(9):1933-1941 Ding Yang,Jing Debing,Zhou Lianbi,et al.Study on the adsorption of aquatic cadmium (Ⅱ) by chestnut inner shell.Acta Scientiae Circumstantiae,2011,31(9):1933-1941(in Chinese)
    [2] 张福凯,徐龙君,张丁月.脱灰煤基活性炭吸附处理含镉废水.环境工程学报,2014,8(2):559-562 Zhang Fukai,Xu Longjun,Zhang Dingyue.Cd(Ⅱ) removal in wastewater with demineralized coal-based activated carbon.Chinese Journal of Environmental Engineering,2014,8(2):559-562(in Chinese)
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    [4] 程海燕,邱宇平,黄民生,等.黑碳的表面化学研究进展.上海化工,2006,32(10):30-34 Cheng Haiyan,Qiu Yuping,Huang Minsheng,et al.Advance of research on surface chemistry of black carbon.Shanghai Chemical Industry,2006,32(10):30-34(in Chinese)
    [5] 张平,廖柏寒,李科林,等.3种生物质炭对活性艳蓝KN-R的吸附.环境工程学报,2014,8(2):581-586 Zhang Ping,Liao Bohan,Li Kelin,et al.Adsorption of reactive brilliant blue KN-R by three kinds of biochars.Chinese Journal of Environmental Engineering,2014,8(2):581-586(in Chinese)
    [6] 马骥.我国农户秸秆就地焚烧的原因:成本收益比较与约束条件分析-以河南省开封县杜良乡为例.农业技术经济,2009,(2):77-84 Ma Ji.The reasons for Chinese farmers to burn straw on field:Cost-benefit comparison and the restrictive conditions analysis case of Duliang township,Kaifeng county,Henan province.Agricultural Technology and Economy,2009,(2):77-84(in Chinese)
    [7] 刘莹莹,秦海芝,李恋卿,等.不同作物原料热裂解生物质炭对溶液中Cd2+和Pb2+的吸附特性.生态环境学报,2012,21(1):146-152 Liu Yingying,Qin Haizhi,Li Lianqing,et al.Adsorption of Cd2+and Pb2+ in aqueous solution by biochars produced from the pyrolysis of different crop feedstock.Ecology and Environmental Sciences,2012,21(1):146-152(in Chinese)
    [8] 安增莉,侯艳伟,蔡超,等.水稻秸秆生物炭对Pb(Ⅱ)的吸附特性.环境化学,2011,30(11):1851-1857 An Zengli,Hou Yanwei,Cai Chao,et al.Lead (Ⅱ) adsorption characteristics on different biochars derived from rice straw.Environmental Chemistry,2011,30(11):1851-1857(in Chinese)
    [9] 张继义,蒲丽君,李根.秸秆生物碳质吸附剂的制备及其吸附性能.农业工程学报,2011,27(增刊2):104-109 Zhang Jiyi,Pu Lijun,Li Gen.Preparation of biochar adsorbent from straw and its adsorption capability.Transactions of the Chinese Society of Agricultural Engineering,2011,27(S2):104-109(in Chinese)
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出版历程
  • 收稿日期:  2014-05-11
  • 刊出日期:  2015-04-03
耿勤, 张平, 廖柏寒, 李科林, 陈全超, 冉宇光. 生物质炭对溶液中Cd2+的吸附[J]. 环境工程学报, 2015, 9(4): 1675-1679. doi: 10.12030/j.cjee.20150425
引用本文: 耿勤, 张平, 廖柏寒, 李科林, 陈全超, 冉宇光. 生物质炭对溶液中Cd2+的吸附[J]. 环境工程学报, 2015, 9(4): 1675-1679. doi: 10.12030/j.cjee.20150425
Geng Qin, Zhang Ping, Liao Bohan, Li Kelin, Chen Quanchao, Ran Yuguang. Adsorption of Cd2+ in aqueous solution by biochars[J]. Chinese Journal of Environmental Engineering, 2015, 9(4): 1675-1679. doi: 10.12030/j.cjee.20150425
Citation: Geng Qin, Zhang Ping, Liao Bohan, Li Kelin, Chen Quanchao, Ran Yuguang. Adsorption of Cd2+ in aqueous solution by biochars[J]. Chinese Journal of Environmental Engineering, 2015, 9(4): 1675-1679. doi: 10.12030/j.cjee.20150425

生物质炭对溶液中Cd2+的吸附

  • 1. 中南林业科技大学环境科学与工程研究所, 长沙 410004
基金项目:

农业部 财政部重大专项子课题(农办财函〔2014〕28号)

国家科技支撑计划项目(2015BAD05B02)

湖南省重点学科建设项目(2006180)

湖南省土水污染控制与资源化技术重点实验室资助项目

摘要: 以玉米秸秆、稻壳在350~500℃制成的生物质炭作为吸附剂,研究其对溶液中Cd2+的吸附特性。通过模拟实验,考察了初始pH、生物质炭用量、吸附时间和Cd2+的起始浓度对吸附的影响。结果表明,2种生物质炭对Cd2+的吸附反应适应pH范围较宽(4.0~7.0);玉米秸秆炭和稻壳炭对Cd2+的吸附速度较快,分别在10和20 min时达到吸附平衡;玉米秸秆炭对溶液中Cd2+的吸附遵循Langmuir等温线模型,而稻壳炭对Cd2+的吸附遵循Freundlich等温线模型。在实验设定的条件下,玉米秸秆炭对溶液中Cd2+的吸附能力强于稻壳炭。

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