PDF(Pubmed)
Abstract：
With the progression of civilization, the harmony within nature has been disrupted, giving rise to various ecocidal activities that are evident in every spheres of the earth. These activities have had a profound and far-reaching impact on global health. One significant example of this is the presence of fluoride in groundwater exceeding acceptable limits, resulting in the widespread occurrence of \"Fluorosis\" worldwide. It is imperative to mitigate the concentration of fluoride in drinking water to meet safety standards. While various defluoridation techniques exist, they often have drawbacks. Biosorption, being a simple, affordable and eco-friendly method, has gained preference for defluoridation. However, its limited commercialization underscores the pressing need for further research in this domain. This comprehensive review article offers a thorough examination of the defluoridation potential of agro-based adsorbents, encompassing their specific chemical compositions and preparation methods. The review presents an in-depth discussion of the factors influencing fluoride biosorption and conducts a detailed exploration of adsorption isotherm and adsorption kinetic models to gain a comprehensive understanding of the nature of the adsorption process. Furthermore, it evaluates the commercial viability through an assessment of regeneration potential and a cost analysis of these agro-adsorbents, with the aim of facilitating the scalability of the defluoridation process. The elucidation of the adsorption mechanism and recommendations for overcoming challenges in large-scale implementation offer a comprehensive outlook on this eco-friendly and sustainable approach to fluoride removal. In summary, this review article equips readers with a lucid understanding of agro-adsorbents, elucidates their ideal conditions for improved performance, offers a more profound insight into the fluoride biosorption mechanism, and introduces the concept of effective spent adsorbent management.
摘要：
随着文明的进步，自然界的和谐被破坏了，在地球的每一个领域都有明显的各种生态灭绝活动。这些活动对全球卫生产生了深远而深远的影响。一个重要的例子是地下水中氟化物的存在超过了可接受的限度，导致“氟中毒”在世界范围内广泛发生。必须降低饮用水中的氟化物浓度，以达到安全标准。虽然存在各种脱氟技术，他们经常有缺点。生物吸附，作为一个简单的，经济实惠和环保的方法，已经获得了去氟的偏好。然而,其有限的商业化强调了在这一领域进一步研究的迫切需要。这篇全面的综述文章对农用吸附剂的脱氟潜力进行了彻底的检查，包括其特定的化学成分和制备方法。该综述对影响氟化物生物吸附的因素进行了深入的讨论，并对吸附等温线和吸附动力学模型进行了详细的探索，以全面了解吸附过程的本质。此外，它通过评估再生潜力和这些农业吸附剂的成本分析来评估商业可行性，目的是促进除氟过程的可扩展性。吸附机理的阐明和克服大规模实施中的挑战的建议提供了对这种生态友好和可持续的除氟方法的全面展望。总之,这篇综述文章使读者对农业吸附剂有了清晰的理解，阐明其改善性能的理想条件，提供了对氟化物生物吸附机制的更深刻的见解，并介绍了有效废吸附剂管理的概念。
