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首页> 外文期刊>Reviews of environmental contamination and toxicology >Heavy metals remediation of water using plants and lignocellulosic agrowastes.
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Heavy metals remediation of water using plants and lignocellulosic agrowastes.

机译：利用植物和木质纤维素的农业废弃物对重金属进行修复。

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Toxic heavy metals and metalloids are constantly released into the environment, and their removal is a very difficult task because of the high cost of treatment methods. Various methods exist for the removal of toxic metal ions from aqueous solutions. Among these are adsorption using activated carbon, by far the most versatile and widely used method for the removal of toxic metals; however, it is relatively expensive and less feasible to use in developing countries. Furthermore, activated carbon loaded with toxicants is generally incinerated or disposed of on land, thereby causing environmental pollution through different routes. There is an urgent need to develop low-cost, effective, and sustainable methods for their removal or detoxification. The use of lignocellulosic agrowastes is a very useful approach, because of their high adsorption properties, which results from their ion-exchange capabilities. Agricultural wastes can be made into good sorbents for the removal of many metals, which would add to their value, help reduce the cost of waste disposal, and provide a potentially cheap alternative to existing commercial carbons. Although the abundance and very low cost of lignocellulosic wastes from agricultural operations are real advantages that render them suitable alternatives for the remediation of heavy metals, further successful studies on these materials are essential to demonstrate the efficacy of this technology.
机译：有毒重金属和准金属不断释放到环境中，由于处理方法的成本高，将其去除是非常困难的任务。存在多种用于从水溶液中去除有毒金属离子的方法。其中包括使用活性炭的吸附，这是迄今为止用途最广泛，使用最广泛的去除有毒金属的方法。然而，在发展中国家使用它相对昂贵并且不可行。此外，负载有毒物的活性炭通常在陆地上被焚化或处置，从而通过不同的途径造成环境污染。迫切需要开发一种低成本，有效和可持续的方法来去除或排毒。由于它们的离子交换能力高，因此木质素纤维素的增稠剂具有很高的吸附性能，因此是一种非常有用的方法。可以将农业废料制成良好的吸附剂，以去除许多金属，这将增加其价值，有助于降低废物处理成本，并为现有的商业碳提供潜在的廉价替代品。尽管来自农业生产的木质纤维素废料的丰富和非常低的成本是使它们成为重金属修复的合适替代品的真正优势，但对这些材料的进一步成功研究对于证明该技术的有效性至关重要。

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