Author:
Deng Lirong,Lu Yufeng,Shang Xinlong,Liu Zhenxing,Dong Yongwang
Abstract
Abstract
The application potential of bentonite is closely related to the content of montmorillonite from it, and the purification of bentonite is conducive to expanding its industrial application. In this paper, purification method of Keerjian bentonite with low to medium grade were studied systematically. A comparative study of natural settlement, chemical dispersion and high-speed centrifugation was carried out. In addition, one-factor experiment and orthogonal experiment on a compound purification method, chemical dispersion following by high-speed centrifugation, were conducted. According to the experimental result, the optimal parameters of the compound purification, namely slurry ratio 1:8, dispersant amount 1.2% and soaking time 24h, were obtained. This study solved the problem of low utilization level and low purification efficiency, which shade light in the application of Keerjian bentonite with high efficiency and high economic benefits.
Subject
Computer Science Applications,History,Education
Reference14 articles.
1. Clay based nanocomposites for removal of heavy metals from water: A review;Vijay;Journal of Environment Management,2019
2. Purification and economic analysis of nanoclay from bentonite;Zahra;Environ. Sci. Pollut. Res,2021
3. Purification of montmorillonite and the influence of the purification method on textural properties;Qiao;Applied Clay Science,2020
4. Sodium modification of low quality natural bentonite as enhanced lead ion adsorbent;Yang;Colloids and Surfaces A: Physicochemical and Engineering Aspects,2022