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一种新的合成聚合硫酸铁聚合物的新方法,并制备基于红泥的陶石

Zhilei Zhen¹, Chenxi He¹, Yanrong Wang¹

¹College of Urban and Rural Construction, Shanxi Agricultural University, Taigu 030801, China.

Materials (Basel, Switzerland)

|March 28, 2024

概括

这项研究开发了红泥 (RM) 的零废物策略,通过创建聚合物硫酸铁 (PAFS) flokulant 和基于酸性RM的陶石 (ARMC) 吸附剂. 这两种产品都在污水处理中表现出高效率,用于度和酸盐去除.

科学领域:

环境科学与工程环境科学与工程
材料科学材料科学材料科学
废物管理废物管理

背景情况:

红泥 (RM),生产的副产品,含有有价值的 (Al) 和铁 (Fe),但它的处置给环境带来了挑战.
现有的利用RM的方法往往忽略了提取有价值成分后其残留的潜力.

研究的目的:

通过合成聚合酸铁硫酸盐 (PAFS) flokulant 和基于酸性RM的陶石 (ARMC) 吸附剂,开发红泥的零废物战略.
评估PAFS在污水处理中的度和酸盐去除效率.
评估ARMC作为去除的吸附剂的性能和潜力.

主要方法:

从红泥中通过酸洗合成的PAFS花剂可提取Al和Fe.
通过将酸化的RM残留物与本托尼特,基基甲基纤维素和粉混合而产生的ARMC,然后进行烧结.
优化了ARMC的生产条件 (例如,烧焦温度,ARM含量),并使用热重力学分析和扫描电子显微镜等技术分析了其性能 (BET表面积,孔径体积,机械强度).

主要成果:

优化的酸化参数 (烧结,温度,H2SO4度,时间,液体与固体的比率) 对于PAFS的高效Al和Fe提取至关重要.
在60毫克/升剂量下,PAFS表现出高度 (95.21 ± 0.64%) 和酸盐 (89.17 ± 0.52%) 的清除率,在pH值8.0.0下分别达到99.22 ± 0.66%和95.98 ± 1.63%
最佳的ARMC生产涉及60%的ARM和600°C的化,产生BET表面积为56.16 m2/g,孔积为0.167 cm3/g. 在400°C预热提高了机械强度.

结论:

该研究成功地建立了一个可行的零废物战略,用于红色泥的利用.
在污水处理中,PAFS是一种有效的花剂,可显著降低度和酸盐水平.
作为一种用于去除的新型吸附剂,ARMC显示出前景,有助于可持续的废水管理.

关键词:

酸性浸是一种酸性浸.酸盐酸盐的使用方法聚合物铁硫酸盐的聚合物硫酸盐.红色的泥,红色的泥.

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