Treatment of industrial effluents by a continuous system: electrocoagulation--activated sludge.
A continuous system electrocoagulation--active sludge was designed and built for the treatment of industrial wastewater. The system included an electrochemical reactor with aluminum electrodes, a clarifier and a biological reactor. The electrochemical reactor was tested under different flowrates (50, 100 and 200 mL/min). In the biological reactor, the performance of different cultures of active sludge was assessed: coliform bacterial, ciliate and flagellate protozoa and aquatic fungus. Overall treatment efficiencies of color, turbidity and COD removal were 94%, 92% and 80%, respectively, under optimal conditions of 50 mL/min flowrate and using ciliate and flagellate protozoa. It was concluded that the system was efficient for the treatment of industrial wastewater.
Moisés
Tejocote-Pérez
TP
Centro Conjunto de Investigación en Química Sustentable UAEMéx-UNAM, Carretera Toluca-Atlacomulco Km 14.5, 50200 Toluca, Mexico. moytej@yahoo.com.mx
Patricia
Balderas-Hernández
BH
Barrera-Díaz
C E
CE
Gabriela
Roa-Morales
RM
Natividad-Rangel
Reyna
R
D057919:Biological Oxygen Demand Analysis; D003116:Color; D055664:Electrochemical Techniques; D007220:Industrial Waste; D009391:Nephelometry and Turbidimetry; D012722:Sewage; D062065:Wastewater; D014873:Water Pollutants / Q000302:isolation & purification
D007220:Industrial Waste; D012722:Sewage; D062065:Wastewater; D014873:Water Pollutants