WPT  >> Vol. 5 No. 3 (July 2017)

    包覆型纳米零价铁去除水中镍(II)离子和三氯乙烯的研究
    Research on Removal of Nickel (II) Ions and Trichloroethylene from Aqueous Solution by Coated Nano Zero-Valent Iron

  • 全文下载: PDF(640KB) HTML   XML   PP.41-48   DOI: 10.12677/WPT.2017.53006  
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作者:  

张小霞:佛山市顺德区乐华陶瓷洁具有限公司,广东 佛山;
成 岳,樊文井:景德镇陶瓷大学材料科学与工程学院,江西 景德镇

关键词:
包裹型纳米零价铁镍离子(II)三氯乙烯去除率脱氯率Coated Nano Zero-Valent Iron Nickel (II) Trichloroethylene (TCE) Removal Rate Degradation Rate

摘要:

包覆型纳米零价铁去除镍(II)离子和三氯乙烯(TCE)的结果表明:Ni2+和TCE的去除率均随着包覆型纳米零价铁的投加量增加而升高,随着溶液初始浓度的增加而降低。四种零价铁材料处理混合废水的能力依次为:NZVI < Agar-NZVI < CMC-NZVI < Starch-NZVI,包裹剂Agar、CMC、Starch对目标污染物的作用可以忽略。在混合废水中Ni2+和TCE浓度都为5 mg/L,包覆型纳米零价铁的加入量为1.5 g/L,温度为30℃,反应时间为2.5 h,Starch-NZVI对Ni2+和TCE的处理效果最好,其中Ni2+的去除率为99.38%,TCE的脱氯率为49.36%。

Coated nano zero-valent iron removal of Nickel (II) ions and trichloroethylene (TCE) results showed that: The removal of nickel ions and TCE was better with higher dosage of nano zero-valent iron and lower initial concentration. Capacity of four kinds of zero-valent iron material handling wastewater was: NZVI < Agar-NZVI < CMC-NZVI < Starch-NZVI; effect of wrapped agent act on pollutants could be ignored. When Nickel (II) and TCE concentrations were 5 mg/L in the mixed wastewater, amount of Starch-NZVI was 1.5 g/L; temperature was 30˚C; reaction time was 2.5 h; Nickel (II)+ and TCE had best treatment effect, with Nickel (II) removal rate 99.38%, TCE degradation rate 49.36%.

文章引用:
张小霞, 成岳, 樊文井. 包覆型纳米零价铁去除水中镍(II)离子和三氯乙烯的研究[J]. 水污染及处理, 2017, 5(3): 41-48. https://doi.org/10.12677/WPT.2017.53006

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