Cyanide removal from aqueous solution by oxidation with hydrogen peroxide in the presence of activated alumina-supported copper catalyst

被引：1

作者：

Halet, Farid ^{[1
,2
]}

Chergui, Salima ^{[2
]}

Hamdache, Farida ^{[2
]}

Boutrif, Abderrahmane ^{[2
]}

Chergui, Abdelmalek ^{[2
,3
]}

Ould-Dris, Aissa ^{[4
]}

Boudriche, Lylia ^{[5
]}

Guenin, Erwan ^{[4
]}

Nadjemi, Boubekeur ^{[2
]}

Yeddou, Ahmed Reda ^{[2
]}

机构：

[1] Univ Mhamed Bougara Boumerdes, Dept Biol, Ave Independance, Boumerdes 35000, Algeria

[2] Ecole Normale Super Kouba, Lab Etud & Dev Tech Traitement & Epurat Gest Eaux, BP 92 Vieux Kouba, Algiers 16050, Algeria

[3] Ecole Natl Polytech Alger, Dept Genie Environm, Lab Sci & Tech Environm, 10 Rue Hassen Badi El Harrach, Algiers, Algeria

[4] Univ Technol Compiegne, Sorbonne Univ, Ctr Rech Royallieu, Lab TIMR,EA4297, Rue Docteur Schweitzer,CS 60319, F-60203 Compiegne, France

[5] Ctr Rech Sci & Tech Anal Physicochim, BP 384 Bou Ismail, Tipasa 42004, Algeria

来源：

GLOBAL NEST JOURNAL | 2024年 / 26卷 / 02期

关键词：

Cyanide; oxidation; hydrogen peroxide; catalysis; activated alumina-supported copper; WASTE-WATER; AZO-DYE; DEGRADATION; CARBON; CUO/AL2O3; KINETICS; OZONE;

D O I：

10.30955/gnj.005639

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Cyanide compounds are widely used in some electroplating, chemical, and metallurgical industries. They are often found in their liquid discharges. This work highlights the performance of an activated aluminasupported copper catalyst in the removal of cyanide by oxidation with hydrogen peroxide in aqueous solution. The influence of catalyst dose, initial molar ratio of hydrogen peroxide/cyanides, temperature, and catalyst reuse was studied. The activated alumina -supported copper significantly enhanced the reaction rate showing a good catalytic activity. The efficiency of cyanide elimination was increased after 30 minutes of oxidation from 48% to 98% by increasing the catalyst dose from 1 to 10 g/L. Rising the temperature from 30 degrees C to 40 degrees C promoted cyanide removal. The catalyst can be recycled four times and show good stability. The kinetics of cyanide oxidation was revealed to be pseudo -first -order regarding cyanides. The rate constants as well as the activation energy were determined.

引用

页数：7

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