A review on contamination and removal of sulfamethoxazole from aqueous solution using cleaner techniques: Present and future perspective

吸附 化学 光催化 环境科学 环境化学 化学工程 催化作用 废物管理 污染物 组合化学 有机化学 工程类
作者
G. Prasannamedha,P. Senthil Kumar
出处
期刊:Journal of Cleaner Production [Elsevier BV]
卷期号:250: 119553-119553 被引量:188
标识
DOI:10.1016/j.jclepro.2019.119553
摘要

Sulfamethoxazole is a persistent organic pollutant having N-amine and carboxyl groups rising from pharmaceutical industry. Upon consumption, it undergoes transformation reactions thereby leading to formation of oxidised, acetylated and hydrolysed metabolites in the environment. Though many countries banned use of sulfamethoxazole as growth promoters for veterinary, its occurrence in environment is witnessed even today in rivers, lakes, groundwater, sediments and ocean. This review provides thorough note on occurrence, destiny, toxicity effects and important materials involved in removal technologies like adsorption, Fenton/photo-Fenton process, electrochemical oxidation and photocatalytic degradation. SMX is removed via adsorption by formation of strong chemical interaction with functional moieties present in active sites of sorbents like hydrogen bonding, electrostatic interaction, π-π and hydrophobic interaction whereas AOP’s use external energy, chemical agents for cleaving SMX structure through catalytic degradation by generation of hydroxyl radicals. Removal efficiency of material depends on experimental designs which rely on standard protocol. The article highlights the importance of sustainable development of technology by focussing on its feasibility and cost factor for building economic industrialization and statistics. It urge the significance of synergistic effects involved in nanocomposites/polymer in removing toxic contaminant via adsorption or photocatalytic degradation because of its high stability, functionality, ability to adapt at varying pH, sustainability and decreased cost in life cycle assessment.
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