Abstract
The aim of this work is to introduce bacteria into the matrix of natural phosphate to catalyze the phenol oxidation. The results showed that the NP-bacteria-CPE exhibited excellent electro catalytic activity to phenol. The appearance of three peaks of oxidation shows that the degradation of the phenol was total.
Highlights
Phenol is considered as a toxic product, it is one of the first compounds inscribes into the List of Priority Pollutants by the US Environmental Protection Agency (US EPA)
The bioelectrochemical system developed is based on a carbon paste electrode modified by a natural phosphate matrix, in which we have introduced a well-defined quantity of bacteria
We find that the natural phosphate (NP) matrix is formed by compact particles fractions between 100 and 400 mm that is rich in phosphate and as can been seen that compact NP appearance was evident
Summary
Phenol is considered as a toxic product, it is one of the first compounds inscribes into the List of Priority Pollutants by the US Environmental Protection Agency (US EPA). Phenol is really a refractory hazardous pollutant in wastewater. Phenolic compounds are present in effluents from coke production, food industries, and chemical industries, such as those associated to the production of resins and pesticides, and petroleum refineries [1]. Various technologies have been studied for the recovery or destruction of phenols [2,3]. These methods are mostly based on biological treatment [4], on the phenol polymerization on anode [5,6,7], or on electro-oxidation on a variety of electrodes. The bioelectrochemical system developed is based on a carbon paste electrode modified by a natural phosphate matrix, in which we have introduced a well-defined quantity of bacteria
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