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净水污泥与粉末活性炭复合制备吸附剂去除氨氮研究

李荣,  许多,  魏杰,  王东田

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文章导航 > 环境工程  > 2020 >  38(9): 95-100,112
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引用本文: 李荣, 许多, 魏杰, 王东田. 净水污泥与粉末活性炭复合制备吸附剂去除氨氮研究[J]. 环境工程, 2020, 38(9): 95-100,112. doi: 10.13205/j.hjgc.202009016
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Citation: LI Rong, XU Duo, WEI Jie, WANG Dong-tian. PREPARATION OF ADSORBENT BY COMBINED DRINKING WATER TREATMENT SLUDGE AND POWDERED ACTIVATED CARBON AND ITS AMMONIUM REMOVAL PERFORMANCE[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(9): 95-100,112. doi: 10.13205/j.hjgc.202009016
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净水污泥与粉末活性炭复合制备吸附剂去除氨氮研究

doi: 10.13205/j.hjgc.202009016

  • 1. 苏州科技大学 环境科学与工程学院, 江苏 苏州 215009;

  • 2. 苏州科技大学 化学生物与材料工程学院, 江苏 苏州 215009

基金项目: 

国家自然科学基金"净水污泥吸附剂的制备及吸附去除废水中氨氮的行为与机制"（51778392）；江苏省研究生科研与实践创新计划项目"净水污泥与废弃活性炭制备吸附剂及去除氨氮研究（SJCX18_0872）。

详细信息
    作者简介:

    李荣(1994-),女,硕士,主要研究方向为污水处理与回用技术。1643787369@qq.com

    通讯作者:

    王东田,博士,教授,主要研究方向为净水污泥资源化利用。dongtianw@163.com

PREPARATION OF ADSORBENT BY COMBINED DRINKING WATER TREATMENT SLUDGE AND POWDERED ACTIVATED CARBON AND ITS AMMONIUM REMOVAL PERFORMANCE

  • 1. School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China;

  • 2. School of Chemistry, Biology and Materials Engineering, Suzhou University of Science and Technology, Suzhou 215009, China

摘要

    摘要
  • 摘要: 将净水污泥与粉末活性炭复合制备吸附剂，用于去除水中的氨氮。研究了净水污泥与粉末活性炭的最佳复合比例及煅烧温度，并采用EDX、SEM、XRD、FTIR、BET对吸附剂进行表征。考察了吸附时间、溶液初始pH、吸附剂投加量、氨氮初始浓度对氨氮吸附效果的影响。结果表明：复合吸附剂的吸附性能优于原泥，当吸附时间为5 h，pH为9时氨氮去除效果最佳。对实验结果进行吸附等温线及吸附动力学模型拟合，发现复合吸附剂对氨氮的吸附过程符合Langmuir等温吸附模型及二级动力学方程。
    Abstract: The adsorbent was prepared by combining the drinking water treatment sludge with the powdered activated carbon, in order to remove ammonia nitrogen from the water. The optimum composite mass ratio and calcination temperature of drinking water treatment sludge and powdered activated carbon were studied. The adsorbents were characterized by EDX, SEM, XRD, FTIR and BET. The influences of different parameters such as contact time of composite adsorbent, initial pH of ammonia nitrogen, dosage of adsorbent and initial concentration of ammonia nitrogen were investigated. The results indicated that the adsorption performance of the composite adsorbent was better than that of the raw sludge adsorbent. When the contact time was 5h and the pH was 9, the ammonia nitrogen removal effect was the best. The adsorption isotherms and adsorption kinetic model were fitted by the experimental results. It was found that the adsorption process of the composite adsorbent on ammonia nitrogen accorded with the Langmuir isotherm adsorption model and the second-order kinetic model.
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  • 收稿日期:  2019-08-07

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