生物炭负载铁酸锰对水溶液中对氨基苯胂酸的吸附

李培培; 周雨舟; 向宇佳; 周耀渝; 朱红梅; 荣湘民

doi:10.13205/j.hjgc.202001011

生物炭负载铁酸锰对水溶液中对氨基苯胂酸的吸附

doi: 10.13205/j.hjgc.202001011

湖南农业大学资源环境学院, 长沙 410128

基金项目:

青年科学基金项目（51709103）。

详细信息

作者简介:
李培培(1993-),女,硕士,主要研究方向为土地资源管理。15974266405@163.com

通讯作者:
周耀渝(1988-),男,副教授,主要研究方向为水污染处理研究。zhouyy@hunau.edu.cn

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- 文章访问数: 183
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- 被引次数: 0
出版历程
- 收稿日期: 2019-01-24

ADSORPTION PERFORMANCE OF P-ARSANILIC ACID IN AQUEOUS SOLUTION BY BIOCHAR SUPPORTED MANGANESE FERRATE

College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China

摘要

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。
- 生物炭 /
- 铁氧体 /
- 对氨基苯胂酸 /
- 吸附
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.
- biochar /
- ferrite /
- p-arsanilic acid /
- adsorption

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