Utilization of agro-industrial waste for removal of copper ions from aqueous solutions and mining-wastewater

•In this work unmodified lemon peel was investigated for purification of copper polluted water.•The maximum Langmuir adsorption capacity was evaluated to be 13.2 mg/g at optimum contact time of 15 minutes and at pH 4.•The lemon peel removed 89% of copper ions from wastewater for 15 min at pH3. In th...

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Published inJournal of industrial and engineering chemistry (Seoul, Korea) Vol. 75; pp. 246 - 252
Main Authors Meseldzija, Sladjana, Petrovic, Jelena, Onjia, Antonije, Volkov-Husovic, Tatjana, Nesic, Aleksandra, Vukelic, Nikola
Format Journal Article
LanguageEnglish
Published Elsevier B.V 25.07.2019
한국공업화학회
Subjects
Adsorption
Agro-Industrial waste
Fruit peel
Pectin
화학공학
Pectin
Adsorption
Agro-Industrial waste
Fruit peel
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Summary:•In this work unmodified lemon peel was investigated for purification of copper polluted water.•The maximum Langmuir adsorption capacity was evaluated to be 13.2 mg/g at optimum contact time of 15 minutes and at pH 4.•The lemon peel removed 89% of copper ions from wastewater for 15 min at pH3. In this study, unmodified lemon peel, as agro-industrial waste, was used to investigate removal efficiency of copper ions from aqueous solutions and mining wastewater. The effects of solution pH, adsorption time, metal ion concentration and dose of adsorbent on sorption were studied in batch experiments. The maximum Langmuir adsorption capacity was evaluated to be 13.2 mg/g at optimum contact time of 15 min. The maximum removal of copper ions from mining-wastewater at natural pH (pH3) was 89%, indicating that lemon peel could be employed as an effective low-cost adsorbent for removal of copper ions from wastewater at acidic conditions.
ISSN:1226-086X
1876-794X
DOI:10.1016/j.jiec.2019.03.031