AI Article Synopsis
- - The study investigated the dangers of high aluminum levels in algae and aimed to find ways to effectively remove it using humic acid as a treatment method.
- - Experimental results indicated that using 0.0330 g·L of humic acid at a pH of 3.80 and 34 °C for 40 minutes led to an 80.18% reduction in aluminum, while improving the levels of beneficial components like proteins and amino acids in the algae.
- - Analysis showed that the adsorption of aluminum by humic acid involved various functional groups and occurred in three stages, highlighting both physical and chemical processes, ultimately providing a promising approach for removing metals from algae.
Article Abstract
High level of aluminum content in posed a growing threat to both its growth and human health. This study focused on exploring the factors, impacts, and process of removing aluminum from using humic acid. The results showed that under experimental conditions of 0.0330 g·L humic acid concentration, pH 3.80, 34 °C, and a duration of 40 min, the removal rate was up to 80.18%. The levels of major flavor components, proteins, and amino acids in increased significantly after treatment, while polysaccharides and trace elements like calcium and magnesium decreased significantly. Infrared spectroscopy demonstrated that the main functional groups involved in binding with Al during humic acid adsorption were hydroxyl, carboxyl, phenol, and other oxygen-containing groups. The adsorption process of Al by humic acid was a spontaneous phenomenon divided into three key stages: fast adsorption, slow adsorption, and adsorption equilibrium, which resulted from both physical and chemical adsorption effects. This study provided a safe and efficient method in algae metal removal.
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| http://dx.doi.org/10.1080/10934529.2024.2396728 | DOI Listing |
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