Waste Cleaning Waste: Combining Alginate with Biowaste-Derived Substances in Hydrogels and Films for Water Clean-up.,Chemistry - A European Journal

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Waste Cleaning Waste: Combining Alginate with Biowaste-Derived Substances in Hydrogels and Films for Water Clean-up.
Chemistry - A European Journal ( IF 3.9 ) Pub Date : 2020-09-24 , DOI: 10.1002/chem.202003250
Maria Laura Tummino _{1,

2} , Roberto Nisticò ₃ , Chiara Riedo ₁ , Debora Fabbri ₁ , Marta Cerruti ₄ , Giuliana Magnacca _{1,

5}

Affiliation

Biowaste‐derived substances isolated from green compost (BBS‐GC) are environmentally friendly reactants similar to humic substances, which contain multiple functionalities, that are suitable for adsorbing different kinds of pollutants in wastewater. Herein, sodium alginate (derived from brown algae) cross‐linked with both Ca²⁺ ions and BBS‐GC in the form of hydrogels and dried films are proposed as green, easy‐to‐form, and handleable materials for tertiary water treatments. The results show that both hydrogels and films are mechanically stable and can effectively remove differently charged dyes through an adsorption mechanism that can be described by the Freundlich model. BBS‐GC‐containing gels always performed better than samples prepared without BBS‐GC, revealing that such unconventional materials can integrate waste valorization and water decontamination, potentially providing social and environmental benefits.

中文翻译：

废物清洁废物：将藻酸盐与水凝胶和薄膜中的生物废物衍生物质相结合，用于水净化。

从绿色堆肥中分离出的生物废物衍生物质（BBS-GC）是类似于腐殖质的环保反应物，其含有多种功能，适合吸附废水中的不同种类的污染物。在此，以水凝胶和干燥膜的形式与Ca ²⁺离子和BBS-GC交联的海藻酸钠（源自褐藻）被提议作为绿色、易于形成和可处理的三级水处理材料。结果表明，水凝胶和薄膜都具有机械稳定性，并且可以通过弗罗因德利希模型描述的吸附机制有效去除带不同电荷的染料。含有 BBS-GC 的凝胶总是比不含 BBS-GC 制备的样品表现得更好，这表明这种非常规材料可以将废物增值和水净化结合起来，潜在地提供社会和环境效益。

更新日期：2020-09-24

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