Phenolic compounds removal from mimosa tannin model water and olive mill wastewater by energy-efficient electrocoagulation process | Zendy

Marijana Kraljić Roković | Zendy; Mario Čubrić | Zendy; Ozren Wittine | Zendy

Open Access

Phenolic compounds removal from mimosa tannin model water and olive mill wastewater by energy-efficient electrocoagulation process

Author(s) -

Marijana Kraljić Roković,

Mario Čubrić,

Ozren Wittine

Publication year - 2014

Publication title -

journal of electrochemical science and engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.236

H-Index - 6

ISSN - 1847-9286

DOI - 10.5599/jese.2014.0066

Subject(s) - electrocoagulation , tannin , effluent , wastewater , chemistry , pulp and paper industry , ferric , ferrous , total organic carbon , nuclear chemistry , environmental chemistry , environmental engineering , environmental science , food science , inorganic chemistry , organic chemistry , engineering

The objective of this work was to study the influence of NaCl concentration, time, and current density on the removal efficiency of phenolic compounds by electrocoagulation process, as well as to compare the specific energy consumption (SEC) of these processes under different experimental conditions. Electrocoagulation was carried out on two different samples of water: model water of mimosa tannin and olive mill wastewater (OMW). Low carbon steel electrodes were used in the experiments. The properties of the treated effluent were determined using UV/Vis spectroscopy and by measuring total organic carbon (TOC). Percentage of removal increased with time, current density, and NaCl concentration. SEC value increased with increased time and current density but it was decreased significantly by NaCl additions (0-29 g L-1). It was found that electrocoagulation treatment of effluents containing phenolic compounds involves complex formation between ferrous/ferric and phenolic compounds

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