Kinetic and mechanistic investigations of the degradation of propranolol in heat activated persulfate process.

ABSTRACT: This study investigated the heat activated persulfate (heat/PS) process in the degradation of propranolol from water. Various factors (e.g., temperature, persulfate dose, initial pH and natural water constituent) on PRO degradation kinetics have been investigated. The results showed that the PRO degradation followed a pseudo-first-order kinetics pattern. As temperature rises, the pseudo-first-order rate constant (k _obs) was improved significantly, and the k _obs determined at 40-70 °C satisfied the Arrhenius equation, yielding an activation energy of 99.0 kJ mol^-1. The radical scavenging experiments and the EPR tests revealed that both SO₄˙^- and ·OH participated in degrading PRO, with SO₄˙^- pla

SUBMITTER: Gao YQ 

PROVIDER: S-EPMC9091703 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature