| 生物炭负载铁酸锰对水溶液中对氨基苯胂酸的吸附 |
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| 引用本文： | 李培培,周雨舟,向宇佳,周耀渝,朱红梅,荣湘民.生物炭负载铁酸锰对水溶液中对氨基苯胂酸的吸附[J].环境工程,2020,38(1):75-79,86. |
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| 作者姓名： | 李培培 周雨舟 向宇佳 周耀渝 朱红梅 荣湘民 |
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| 作者单位： | 湖南农业大学 资源环境学院, 长沙 410128 |
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| 摘 要： | 以酒糟、一水合硫酸锰（MnSO4·H2O）和六水三氯化铁（FeCl3·6H2O）作为原料，采用共沉淀法制备阿散酸吸附剂MFB-MCs。对MFB-MCs进行SEM和TEM分析和表征，并考察了溶液初始pH值、吸附剂量、温度和时间对阿散酸吸附效果的影响。结果表明:MFB-MCs能够有效吸附水溶液中阿散酸；溶液初始pH对MFB-MCs吸附水中阿散酸的影响较大，在pH值为2.0，吸附剂量为1 g/L，温度为25℃，吸附时间为1440 min，阿散酸初始浓度为20 mg/L时，其去除率达到82.27%；MFB-MCs对阿散酸的吸附过程符合伪二级动力学模型，主要受化学吸附控制；同时符合Fredundlich等温线模型，属于多层吸附。
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| 关 键 词： | 生物炭 铁氧体 对氨基苯胂酸 吸附 |
| 收稿时间： | 2019-01-24 |
ADSORPTION PERFORMANCE OF P-ARSANILIC ACID IN AQUEOUS SOLUTION BY BIOCHAR SUPPORTED MANGANESE FERRATE |
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| LI Pei-pei,ZHOU Yu-zhou,XIANG Yu-jia,ZHOU Yao-yu,ZHU Hong-mei,RONG Xiang-min.ADSORPTION PERFORMANCE OF P-ARSANILIC ACID IN AQUEOUS SOLUTION BY BIOCHAR SUPPORTED MANGANESE FERRATE[J].Environmental Engineering,2020,38(1):75-79,86. |
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| Authors: | LI Pei-pei ZHOU Yu-zhou XIANG Yu-jia ZHOU Yao-yu ZHU Hong-mei RONG Xiang-min |
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| Affiliation: | College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China |
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| Abstract: | The p-arsanilic acid adsorbent MFB-MCs was prepared by co-precipitation method with vinasse, manganese sulfate monohydrate (MnSO4·H2O) and ferric chloride hexahydrate (FeCl3·6H2O) as the raw materials. The SEM and TEM analysis and characterization of MFB-MCs were carried out. The effects of initial solution pH, adsorption dose, temperature and time on the adsorption of p-arsanilic acid were investigated. The results showed that MFB-MCs could effectively remove the p-arsanilic acid in aqueous solution; the influences of initial pH on adsorption process of MFB-MCs to p-arsanilic acid in water was greater. With the condition of temperature of 25 ℃, initial solution pH of 2.0, the adsorption dose of 1 g/L, after 1440 minutes adsorption, the removal rate of p-arsanilic acid with initial concentration of 20 mg/L reached 82.27%; the adsorption process of MFB-MCs on p-arsanilic acid conformed to the pseudo-second-order kinetic model, so it was mainly controlled by chemical adsorption. At the same time, the adsorption process conformed to the Freundlich isotherm model, which belonged to multi-layer adsorption process. |
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