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Article Dans Une Revue Separation and Purification Technology Année : 2010

Electrocoagulation-electroflotation as a surface water treatment for industrial uses

Résumé

Water is a natural product that is needed in many industrial uses, but some processes like washing or cooling do not require drinking water. In this work we investigated the efficiency of an electrolytic treatment of surface waters in order to increase their quality. The waters were taken from a river and in a pond and they were treated by electrocoagulation-electroflotation with an aluminum soluble anode. Vital nutriments for the bacteria development were consumed during the electrolysis. This treatment led to great decreases of molecular oxygen, phosphate and nitrate anions and dissolved organic compounds. Each of these decreases may explain the disinfection effect that was observed for the total flora. Moreover, the X-ray diffraction of the electro-generated solid showed the presence of nanocrystallites that could be involved in a bactericidal effect. After the electrocoagulation-electroflotation treatment, the investigated waters exhibited an increased quality for a cooling use.

Domaines

Bactériologie

Dates et versions

hal-00858034 , version 1 (04-09-2013)

Identifiants

Citer

Catherine Ricordel, André Darchen, Dimitre Hadjiev. Electrocoagulation-electroflotation as a surface water treatment for industrial uses. Separation and Purification Technology, 2010, 74 (3), pp.342-347. ⟨10.1016/j.seppur.2010.06.024⟩. ⟨hal-00858034⟩
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