Caracterización fisicoquímica de los lodos presentes en la planta de tratamiento de agua potable del municipio de Santa Rosa del Sur – Bolívar.

Abstract

In this document was made the determination of the physic-chemical properties present in sludge samples of the Treatment Plant Drinking Water of the municipality of Santa Rosa of South Bolivar, Colombia. The analyzes did are some of those established by Decree No. 1287 of 2014, which establishes the criteria for the use of bio-solids generated in treatment plants municipal wastewater. And the resolution 0631 of 2015 which establishes the parameters and maximum concentration measured in specific maximum allowable discharges to surface water and public sewer systems are established and other provisions. The properties to be determined were: pH, moisture, total solids, total suspended solids, volatile suspended solids, ash, chemical oxygen demand - COD, biochemical oxygen demand - BOD, aluminum, arsenic, cadmium, copper, chromium, manganese, mercury, nickel, lead, selenium, phosphorus, iron, potassium, zinc, total coliforms and fecal coliforms. The results concerning the characterization of levels of heavy metals in the sludge samples analyzed, according to the decree 1287/2014 issued by the Ministry of Environment, Housing and Territorial Development are below the maximum permissible limits. In the microbiological part, although no data enteric virus, viable helminth eggs and Salmonella sp. So it is not possible to determine if they are bio-solids category A or B. The results showed that the concentration of residual aluminum in the sludge samples for May and June 69.764 g is / Kg and 89.137 g / Kg. These concentrations are possibly related to inadequate dosing of coagulant. As for disposal, as feasible alternatives, was raised arrange them in a landfill, or used as a partial replacement of clay in brick making