Clean technology for domestic wastewater treatment: dynamic hydrocavitation-ozone

Authors

Benites, Elmer

Castañeda, Carlos

Acosta, Eusterio

Rengifo, Mery

Abstract

At a global level, more than 80% of the wastewater generated by society is returned to the ecosystem without prior treatment, leading to a continuous increase in the contamination of water resources and receiving bodies. Wastewater from domestic and industrial activities are effluents with high concentrations of organic compounds such as fats, proteins, blood, urine and feces that imply high values of biological oxygen demand (BOD) and chemical oxygen demand (COD) and fecal coliforms. There are several methods of treating this wastewater; however, the research presents the treatment of domestic wastewater through the dynamic hydrocavitation and ozone system. The results indicated that it was 100% efficient for the reduction of fecal coliforms after 80 minutes of treatment, while other physicochemical parameters such as oils and fats, BOD and COD were less efficient. The method turns out to be an alternative with environmental advantages by not using chemical products, as well as being easy to implement