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可再生和高效地从受污染的水中去除,采用来自丰富植物的改性生物炭

Mengxi Feng¹, Xin Zhang², Qingling Fu²

¹Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture and Rural Affairs, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China.

Bioresource technology

|August 16, 2023

概括

改性生物炭通过吸附和氧化水有效地从水中去除 (As). 这一过程显著降低了可用的含量,提高了丰富植物的价值.

科学领域:

环境科学环境科学
材料科学材料科学材料科学

背景情况:

关于科学处置 (As) 丰富植物的研究有限.
减少可用的As内容和提高产品的利用价值是关键的挑战.

研究的目的:

研究由丰富的Pteris vittata衍生出的生物炭对从水中去除 (III) 的作用和机制.
评估用铁 (Fe) 修改的生物炭,以加强补救.

主要方法:

在不同温度下从酸盐丰富的Pteris vittata生产生物炭.
用铁 (Fe) 修改生物炭.
测试原始和修改生物炭在水中的和氧化.

主要成果:

改性生物炭 (Fe-BC300和Fe-BC500) 的可用As含量显著减少,分别为78.7%和91.9%.
修改后的生物炭具有较高的酸吸附能力 (50.3和39.7毫克/克),并且有效地将酸氧化为酸.
在3个循环后,去除率超过50%,表明可重复使用性良好.

结论:

铁的修饰增强了生物炭的酸吸附和氧化能力.
增加零电荷点和Fe的引入是有效去除的关键因素.
改性生物炭显示出科学处置和增值丰富植物的潜力.

关键词:

亚是一种.无害性没有危害性铁改性生物炭是一种铁改性生物炭.皮特里斯·维塔塔·维塔塔资源利用情况资源利用情况

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