Study of kinetic parameters related to the degradation of an industrial effluent using Fenton-like reactions

A comparative study on the degradation of RB-19 dye in an aqueous medium by advanced oxidation processes

“…Iron concentration of 15, 30, 60 and 200 mg L À1 were initially assessed using 300 mg L À1 of oxidant giving oxidant/ ferrous ion mass ratios of 20:1, 10:1, 5:1 and 1.5:1. Different optimum H 2 O 2 :Fe 2þ molar ratios from 1:1 to 400:1 (0.6:1 to 242.8:1 mass ratios) have been proposed to degrade different target compounds in aqueous solution (De Souza et al, 2006).…”

Degradation of dimethyl disulfide using homogeneous Fenton's reaction

“…Several authors [2,3,11,13,14] claim that the oxidation process using the Fenton's reaction presents its highest effectiveness in pH between 3 and 4. Since our previous results showed that the largest degradations are obtained at the lower level of pH, the oxidation runs with Fenton's reaction were carried out at pH 3.…”

“…The oxidations using the reaction of Fenton follows, in most of the cases, first order kinetics [2,10,17]. Thus, considering first order reaction rate:…”

“…The biological treatment is often the most cost effective conventional alternative for treatment of wastewaters since mineralization of the pollutants is often achieved. However, industrial wastewaters usually contain toxic and/or non-biodegradable organic substances, for which biological treatment is not efficient [2].…”

Study on the Fenton Reaction for Degradation of Remazol Red B in Textile Waste Industry

“…Semakin tinggi suhu maka persentase dekolorisasi meningkat dapat dilihat pada Gambar 4. Hal ini disebabkan fakta bahwa suhu yang lebih tinggi meningkatkan laju reaksi antara hidrogen peroksida dan ion Fe 2+ , sehingga meningkatkan laju regenerasi spesi pengoksidasi, radikal OH (de Souza et al, 2006 Oleh karena itu, suhu optimal pada degradasi Remazol Red B adalah 300 K. Suhu yang lebih tinggi memiliki kelemahan yaitu biaya investasi dan operasional tinggi (Fathi & Keshmirizadeh, 2015). (Emami et al, 2010) Dimana C 0 adalah konsentrasi awal Remazol RedB, C t adalah konsentrasi Remazol Red B pada waktu t, k 1 (min -1 ) dan k 2 (M -1 min -1 ) adalah konstanta laju orde pertama dan kedua.…”