香蕉皮@金属氧化物复合材料对亚硝酸根的吸附特征
发布时间：2018-12-17 02:30
【摘要】：利用香蕉皮~@氧化锆(ZrBP)、香蕉皮~@氧化铜(CuBP)、香蕉皮~@氧化镁(MgBP)和香蕉皮纤维素(BP)4种材料作为新型吸附剂对水体中亚硝酸根进行吸附去除。试验结果表明,当pH值为2.0、吸附剂浓度为0.4g/L和反应时间为90min,温度为40℃时,ZrBP、CuBP、MgBP和BP等4种复合材料对2mg/L亚硝酸根的最大去除率分别为80.70%、72.40%、53.81%和47.52%。准二级动力学方程能较好地拟合亚硝酸根在4种材料表面的吸附动力学试验数据,结果表明,控制材料表面吸附速率的因素比较复杂,既有液膜扩散又有颗粒内扩散。热力学数据表明,该吸附过程是一个自发的、吸热的物理吸附过程,提高温度有利于吸附反应的进行。
[Abstract]:Four kinds of materials, banana peel ~ @ zirconia (ZrBP), banana peel ~ @ copper oxide (CuBP), banana peel ~ @ magnesium oxide (MgBP) and banana peel cellulose (BP) were used as new adsorbents to remove nitrite from water. The results show that when the pH value is 2.0, the adsorbent concentration is 0.4g/L, the reaction time is 90 min, and the temperature is 40 鈩，
本文编号：2383496
[Abstract]:Four kinds of materials, banana peel ~ @ zirconia (ZrBP), banana peel ~ @ copper oxide (CuBP), banana peel ~ @ magnesium oxide (MgBP) and banana peel cellulose (BP) were used as new adsorbents to remove nitrite from water. The results show that when the pH value is 2.0, the adsorbent concentration is 0.4g/L, the reaction time is 90 min, and the temperature is 40 鈩，
本文编号：2383496
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