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Valorization of food waste as adsorbents for toxic dye removal from contaminated waters: A review
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2021-10-07 , DOI: 10.1016/j.jhazmat.2021.127432
Adithya Sridhar 1 , Muthamilselvi Ponnuchamy 2 , Ashish Kapoor 2 , Sivaraman Prabhakar 2
Affiliation  

Industrial contaminants such as dyes and intermediates are released into water bodies, making the water unfit for human use. At the same time large amounts of food wastes accumulate near the work places, residential complexes etc. polluting the air due to putrefaction. The need of the hour lies in finding innovative solutions for dye removal from wastewater streams. In this context, the article emphasizes adoption or conversion of food waste materials, an ecological nuisance, as adsorbents for the removal of dyes from wastewaters. Adsorption, being a well-established technique, the review critically examines the specific potential of food waste constituents as dye adsorbents. The efficacy of food waste-based adsorbents is examined, besides addressing the possible adsorption mechanisms and the factors affecting phenomenon such as pH, temperature, contact time, adsorbent dosage, particle size, and ionic strength. Integration of information and communication technology approaches with adsorption isotherms and kinetic models are emphasized to bring out their role in improving overall modeling performance. Additionally, the reusability of adsorbents has been highlighted for effective substrate utilization. The review makes an attempt to stress the valorization of food waste materials to remove dyes from contaminated waters thereby ensuring long-term sustainability.



中文翻译:

食物垃圾作为吸附剂从受污染的水中去除有毒染料的价值:综述

染料和中间体等工业污染物被释放到水体中,使水不适合人类使用。同时,在工作场所、住宅小区等附近堆积了大量的厨余,因腐败而污染了空气。当务之急是寻找从废水流中去除染料的创新解决方案。在这种情况下,文章强调采用或转化食品废料(一种生态公害)作为吸附剂去除废水中的染料。吸附是一种成熟的技术,该评论批判性地研究了食物垃圾成分作为染料吸附剂的特定潜力。除了解决可能的吸附机制和影响现象的因素(如 pH 值、温度、接触时间、吸附剂用量、粒径和离子强度。强调将信息和通信技术方法与吸附等温线和动力学模型相结合,以发挥它们在提高整体建模性能方面的作用。此外,吸附剂的可重复使用性已被强调以有效地利用底物。该审查试图强调食品废料的价值,以从受污染的水中去除染料,从而确保长期可持续性。吸附剂的可重复使用性已被强调以有效地利用底物。该审查试图强调食品废料的价值,以从受污染的水中去除染料,从而确保长期可持续性。吸附剂的可重复使用性已被强调以有效地利用底物。该审查试图强调食品废料的价值,以从受污染的水中去除染料,从而确保长期可持续性。

更新日期:2021-10-21
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