BIO-MITIGATION STUDIES OF ARTIFICIAL SWEETENER IN WASTE WATER: A REVIEW

Artificial sweeteners, which are widely used in modern diets and are persistent and may have negative effects on aquatic ecosystems, such as saccharin (SAC), cyclamate (CYC), aspartame (ASP), acesulfame (ACE), sucralose (SUC), alitame (ALT), neotame (NEO), and neohesperidin dihydrochalcone (NSDH), are being found in wastewater effluents at an increasing rate. In order to address this problem, bio-mitigation studies have shown promise as a method of reducing the harm that wastewater-borne artificial sweeteners do to the environment. This review provides a comprehensive overview of recent advancements in bio-mitigation approaches for artificial sweeteners in wastewater treatment systems. Firstly, the prevalence and persistence of artificial sweeteners in wastewater are discussed, highlighting their widespread occurrence and challenges associated with their removal during conventional wastewater treatment processes. Subsequently, various bio-mitigation strategies are examined, including microbial degradation, phytoremediation, and advanced oxidation processes. Microbial degradation, facilitated by diverse microbial communities, has shown potential for degrading artificial sweeteners into less harmful byproducts. several other techniques like Photocatalytic Degradation, Bank filtration, Granular activated carbon (GAC), advanced oxidation processes, such as ozonation and UV/H2O2 treatment, are explored for their ability to degrade artificial sweeteners into non-toxic compounds.

人工甜味剂（Artificial sweeteners）在现代饮食中应用广泛，性质稳定且可能对水生生态系统造成负面影响，常见种类包括糖精（saccharin, SAC）、甜蜜素（cyclamate, CYC）、阿斯巴甜（aspartame, ASP）、安赛蜜（acesulfame, ACE）、三氯蔗糖（sucralose, SUC）、阿力甜（alitame, ALT）、纽甜（neotame, NEO）以及新橙皮苷二氢查尔酮（neohesperidin dihydrochalcone, NSDH），其在废水出水样中的检出率正持续攀升。为解决这一问题，生物修复（bio-mitigation）相关研究已展现出应用潜力，可有效降低废水中人工甜味剂对环境的危害。本综述全面梳理了污水处理系统中人工甜味剂生物修复方法的最新研究进展。首先，本文讨论了人工甜味剂在废水中的分布与残留特性，着重阐述其广泛检出的现状以及常规污水处理工艺在去除此类物质时面临的技术挑战。随后，本文对各类生物修复策略展开系统分析，涵盖微生物降解、植物修复（phytoremediation）以及高级氧化工艺（advanced oxidation processes）等。其中，依托多样化微生物群落实现的微生物降解技术，已展现出将人工甜味剂分解为低毒性副产物的应用潜力。此外，本文还探讨了光催化降解（Photocatalytic Degradation）、河床过滤（Bank filtration）、颗粒活性炭（Granular activated carbon, GAC）以及臭氧氧化、UV/H₂O₂处理等高级氧化工艺对人工甜味剂的降解效能，此类技术可将人工甜味剂转化为无毒化合物。