相关实验视频

Updated: Jun 29, 2025

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent

Published on: February 21, 2017

修改了Ca-Mg的阿塔普尔吉特去除酸盐及其作为酸盐基肥料的潜力

Xiaotong Kuang¹, Jing Li², Zhu Ouyang¹

¹School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, 523808, PR China.

Journal of environmental management

|March 31, 2024

概括

研究人员开发了Ca-Mg修饰的attapulgite,以从水中去除和回收酸盐. 这种材料,ACM-5:3,显示出高吸附能力和作为肥的潜力,有助于可持续的资源管理.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
农业科学农业科学

背景情况:

水体缩是一个主要的环境问题.
稀缺需要有效的酸盐回收和再利用.
可持续地管理水资源和营养循环至关重要.

研究的目的:

为了合成和评估Ca-Mg修饰的attapulgite以去除酸盐.
为了研究改性材料的吸附性能和机制.
评估酸盐装载材料作为缓释肥料的潜力.

主要方法:

合成具有不同Ca:Mg摩尔比率的修改过的attapulgite.
酸吸附实验,以确定吸附能力和动力学.
使用动力学和等温模型 (伪二阶,兰木尔) 分析吸附机制.
评估含酸盐的材料作为玉米生长的肥料.

主要成果:

修改了Ca-Mg的阿塔普尔吉特 (ACM-5:3) 的最大吸附能力达到63.2 mg/g.
吸附遵循伪二次动力学和兰格穆尔异热模型.
酸盐吸附机制涉及离子交换和静电吸引.
含的ACM-5:3有效促进了玉米的生长,减少了的流失.

结论:

ACM-5:3是一种高效的吸附剂,用于从水中去除酸盐.
这种材料有助于酸盐的回收和再利用,有助于控制缩.
含的ACM-5:3显示出作为可持续肥的前景,提高作物产量和环境保护.

关键词:

吸附方式吸附方式吸附方式修饰的Ca-Mg可以在tapulgite中得到修饰.酸盐是一种酸盐.缓释化肥是一种缓释化肥.

更多相关视频

Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method

Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method

Published on: May 18, 2018

Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis

Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis

Published on: February 12, 2019

相关概念视频

The Phosphorus Cycle

The Phosphorus Cycle

Unlike carbon, water, and nitrogen, phosphorus is not present in the atmosphere as a gas. Instead, most phosphorus in the ecosystem exists as compounds, such as phosphate ions (PO43-), found in soil, water, sediment and rocks. Phosphorus is often a limiting nutrient (i.e., in short supply). Consequently, phosphorus is added to most agricultural fertilizers, which can cause environmental problems related to runoff in aquatic ecosystems.