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首页> 外文期刊>Environmental Technology >Adsorption of colour from dye wastewater effluent of a down-flow hanging sponge reactor on purified coconut fibre
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Adsorption of colour from dye wastewater effluent of a down-flow hanging sponge reactor on purified coconut fibre

机译：纯化椰子纤维下流悬垂的海绵反应器染料废水流出物的吸附

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摘要

This study was carried out to evaluate the potential application of agricultural waste coconut (Cocos nucifera) fibre in its purified form for decolorization of dye-containing effluent from a down-flow hanging sponge (DHS) reactor. Batch adsorption experiments were conducted by varying adsorbent dose, solution pH, contact time and temperature. The results showed that the adsorption percentage of colour increased with increasing in adsorbent dosage from 0.1 g to 1.3 g, solution pH from 2 to 10 and contact time from 1 h to 72 h. The adsorption process was sensitive to temperature and the adsorption percentage of colour reached the highest value at 30 degrees C but decreased when temperature increased from 30 degrees C to 60 degrees C. Purified coconut fibre (PCF) had a good adsorption capacity under the optimal conditions of an adsorbent dose of 0.7 g, pH 8, temperature of 30 degrees C and 24 h contact time. The equilibrium data were well fitted to both Langmuir and Freundlich isotherms, and the best fit of equilibrium isotherms was described using the Freundlich isotherm model. The Langmuir maximum adsorption capability of the PCF was found to be 303 (Pt/Co)/g at 30 degrees C. The results of this study indicated the applicability of PCF as post-treatment unit of DHS reactor for removal of colour in the industrial dye effluent.
机译：进行该研究以评估农业废物椰子（Cocos Nucifera）纤维在其纯化的形式中施加含染料流出物的纯化形式的潜在应用，从而从下流动悬挂海绵（DHS）反应器中的含染料流出物。通过改变吸附剂剂量，溶液pH，接触时间和温度进行批量吸附实验。结果表明，颜色的吸附百分比随着0.1g至1.3g的吸附剂量的增加而增加，溶液pH从2至10的溶液pH从1小时到72小时。吸附过程对温度敏感，并且颜色的吸附百分比在30摄氏度下达到最高值，但在温度从30摄氏度增加至60℃时降低。纯化的椰子纤维（PCF）在最佳条件下具有良好的吸附容量吸附剂剂量为0.7g，pH8，温度为30℃和24小时接触时间。平衡数据适合于Langmuir和Freundlich等温，使用Freundlich等温模型描述了最佳平衡等温线。发现PCF的Langmuir最大吸附能力为30℃的303（pt / co）/ g.本研究的结果表明PCF作为DHS反应器的后处理单元的适用性，用于去除工业中的颜色染料流出物。

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  • 来源
    《Environmental Technology》 |2020年第12期|1337-1346|共10页
  • 作者

    Nguyet Phan Nhu; Hata Yuya; Maharjan Namita; Watari Takahiro; Hatamoto Masashi; Yamaguchi Takashi;

  • 作者单位

    Nagaoka Univ Technol Dept Civil & Environm Engn Kamitomioka 1603-1 Nagaoka Niigata Japan;

    Nagaoka Univ Technol Dept Civil & Environm Engn Kamitomioka 1603-1 Nagaoka Niigata Japan;

    Nagaoka Univ Technol Dept Sci Technol Innovat Kamitomioka 1603-1 Nagaoka Niigata 9402188 Japan;

    Nagaoka Univ Technol Dept Civil & Environm Engn Kamitomioka 1603-1 Nagaoka Niigata Japan;

    Nagaoka Univ Technol Dept Civil & Environm Engn Kamitomioka 1603-1 Nagaoka Niigata Japan;

    Nagaoka Univ Technol Dept Civil & Environm Engn Kamitomioka 1603-1 Nagaoka Niigata Japan|Nagaoka Univ Technol Dept Sci Technol Innovat Kamitomioka 1603-1 Nagaoka Niigata 9402188 Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Dye wastewater; adsorption; down-flow hanging sponge reactor; coconut fibre; color removal;

    机译：染料废水;吸附;羽流悬挂海绵反应器;椰子纤维;颜色去除;

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