On December 20, 2021, Zhang, Di; Dong, Shengkun; Zhang, Aihong; Chen, Li; Yu, Zhenxun; Wang, Qi; Chu, Wenhai published an article.Reference of 2-Chloroacetamide The title of the article was Catalytic hydrolysis: A novel role of zero-valent iron in haloacetonitrile degradation and transformation in unbuffered systems. And the article contained the following:
Efforts to remove highly toxic haloacetonitriles (HANs) is an important step to reduce health risks associated with disinfection by product exposure. Zero valent iron (ZVI) is a versatile material, whose reductant, sorbent and coagulant role has been well understood. However, their catalytic role is less known. In this study, the degradation and transformation of HANs in ZVI system were investigated. Significant decreases of the four HANs in ZVI system were observed, and haloacetamides and haloacetic acids (hydrolysis products of HANs) were the dominant transformation products of HANs. However dehalogenated HANs, Fe (II) and Fe (III) were rarely detected after reaction, indicating that the ZVI acted as a catalyst to promote the hydrolysis of HANs, rather than other previously reported causes (dehalogenation or redox reaction). The HAN degradation rates were dramatically affected by the initial pH, ZVI doses and initial HAN concentration Kinetic anal. indicated that HAN removal was enhanced with the increase of initial pH (5-9), ZVI doses (1-10 g/L), and initial HAN concentration (25-200μg/L). ZVI induced the transformation of HANs to haloacetamides, haloacetic acids and other de-halogenated compounds, which reduced the cytotoxicity and genotoxicity by 88% and 85%, resp. This study helped to understand the fate of HAN during the transmission in cast iron pipes, and provided a theor. foundation for future HAN control and monitoring efforts. The experimental process involved the reaction of 2-Chloroacetamide(cas: 79-07-2).Reference of 2-Chloroacetamide
The Article related to haloacetonitrile degradation catalytic hydrolysis iron, catalytic hydrolysis, dbp control, disinfection by-products, zero-valent iron, Waste Treatment and Disposal: Chemical Treatment Of Aqueous Wastes and other aspects.Reference of 2-Chloroacetamide
Referemce:
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