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Updated: Aug 8, 2026

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市政污泥生物炭骨架藻酸盐珠用于酸盐去除

Dandan He¹, Zeyu Zhang¹, Wenbo Zhang¹

¹School of Chemical Engineering, Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Gansu Provincial Biomass Function Composites Engineering Research Center, Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu Province, Northwest Minzu University, Lanzhou 730030, China.

International journal of biological macromolecules

|January 27, 2024

概括

一个新型的甲基酸盐珠注入铁/兰生物炭有效地从水中去除酸盐. 这种材料具有很高的吸附能力和稳定性,为净化水提供了有前途的解决方案.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
水处理处理水的方法

背景情况:

水体中的酸盐 (P) 污染导致了缩.
为了去除酸盐,需要有效和稳定的吸附剂.
城市污泥处理带来了环境挑战.

研究的目的:

开发一种新型吸附剂,以有效地从水中去除酸盐.
研究开发材料的吸附机制和性能.
探索其在城市污泥管理中的潜在应用.

主要方法:

用铁/生物炭 (SA-KBC-Fe/La) 填充的甲基酸盐珠子通过sol-gel方法进行制备.
形态,结构和化学成分的表征.
在各种条件下 (pH,度,温度) 进行酸盐吸附实验.
吸附动力学和异热学研究.
再生和可重复使用性测试.

主要成果:

在最佳条件下,SA-KBC-Fe/La珠具有较高的酸盐吸收 (46.65 mg/g) (Fe:La比为 1:2,298 K,初始P为100 mg/L).
吸附遵循伪二次动力学和兰木尔异热模型,表明化学吸附.
吸附剂在5个吸附-脱附周期后保持了82%的容量.
观察到增强的机械性能,热稳定性和54.22m2/g的特定表面积.

结论:

新的SA-KBC-Fe/La水凝珠在酸盐去除方面非常有效.
吸附机制涉及连接体交换和静电吸引.
与未经修改的珠子相比,这种材料提供了更好的稳定性和可重复使用性.
这项研究为酸盐去除策略和污泥利用提供了洞察力.

关键词:

吸附方式吸附方式吸附方式市政污泥城市污泥酸盐是一种酸盐.索尔凝方法的方法

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