期刊论文

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

中文

环境工程

1000-8942

2020

38

1

75-79,86

10.13205/j.hjgc.202001011

青年科学基金项目(51709103)。

本校为第一机构

以酒糟、一水合硫酸锰(MnSO_4·H_2O)和六水三氯化铁(FeCl_3·6H_2O)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。

The p-arsanilic acid adsorbent MFB-MCs was prepared by co-precipitation method with vinasse,manganese sulfate monohydrate (MnSO_4·H_2O)and ferric chloride hexahydrate (FeCl_3·6H_2O)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 ...