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Effect of Chemical Structure on the Microbial Nitrification Inhibition and Copper Corrosion Inhibition Properties of Azole Compounds by Kalyani V. Jog; Jim A. Field; Srini Raghavan; Erica Vanover; Chi H. Nguyen; Nivrutti Lakhey; Reyes Sierra-Alvarez is a scholarly article available to read on EtoBox.

What is Effect of Chemical Structure on the Microbial Nitrification Inhibition and Copper Corrosion Inhibition Properties of Azole Compounds about?

Azoles are a class of nitrogen-containing heterocyclic compounds that are widely used as metal corrosion inhibitors in different industrial processes and consumer products. These compounds are severely inhibitory towards microorganisms responsible for nitrification and can impair the efficiency of biological nitrogen removal in wastewater treatment plants. This study assessed the effect of chemical structure on the toxicity of simple azole compounds towards microbial nitrification with the aim of identifying substitution patterns leading to decreased inhibition. Nitrification inhibition by the widely used azoles, pyrazole and 1,2,4-triazole, and several of their derivatives with dimethyl-, diethyl-, carbonyl-, amino substituent groups was studied. The results indicated that, while pyrazole and 1,2,4-triazole were severely inhibitory towards nitrification, addition of dimethyl-and diethyl-substituents greatly lowered the toxicity response of these compounds. The fifty percent inhibition concentrations (IC50) of pyrazole and 1,2,4-triazole were very low, 0.07 and 0.11 mg L -1 , respectively, indicating a high level of inhibition. In contrast, nitrification inhibition by the dimethyl-

Author

Kalyani V. Jog; Jim A. Field; Srini Raghavan; Erica Vanover; Chi H. Nguyen; Nivrutti Lakhey; Reyes Sierra-Alvarez

Publisher

Elsevier BV

Published

2022

Language

EN