Chemically and thermally activated persulfate for theophylline degradation and application to pharmaceutical factory effluent.

ABSTRACT: Degradation of PPCPs by AOPs has gained major interest in the past decade. In this work, theophylline (TP) oxidation was studied in thermally (TAP) and chemically (CAP) activated persulfate systems, separately and in combination (TCAP). For [TP]₀ = 10 mg L^-1, (i) TAP resulted in 60% TP degradation at [PS]₀ = 5 mM and T = 60 °C after 60 min of reaction and (ii) CAP showed slight degradation at room temperature; however, (iii) TCAP resulted in complete TP degradation for [PS]₀ = [Fe²⁺]₀ = 2 mM at T = 60 °C following a pseudo-first order reaction rate with calculated k _obs = 5.6 (±0.4) × 10^-2 min^-1. In the TCAP system, the [PS]₀ : [Fe²⁺]₀ rat

SUBMITTER: Al Hakim S 

PROVIDER: S-EPMC9073359 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature