Alternative Electrocoagulation for Livestock Wastewater Treatment

Abstract

This project assessed the technical feasibility of organic matter (COD) removal in livestock effluents, by electrocoagulation. An experimental design was used to block two factors at three levels, to evaluate the effect of the variables distance between electrodes and pH, using aluminum sacrificial electrodes. Maximum removal (90.16%) was obtained at 7 units pH, and 2.0 cm distance between electrodes. This study demonstrated the technical feasibility of electrocoagulation (EC) for the removal of organic matter as COD, present in wastewater from the livestock industry.

Enhanced electrocoagulation process for natural organic matter removal from surface drinking water sources: coagulant dose control & organic matter characteristics

“…The CV data for treated Murray River water [A254, EC: 7.8%, CC: 0.9%; colour, EC: 17%, CC: Several factors have been linked to the EC efficiency in removing pollutants including the electrode material, EC process time, EC cell voltage, EC cell electric current, electrolyte concentration and type, pH, temperature, distances between electrodes, electrode shape, EC cell structure and configuration of electrode electrical connections. 21,26,[56][57][58][59][60][61][62][63][64] In this study, the performance of the EC process for DOM removal (using an aluminium electrode, at the optimum pH and ambient temperature) was found to be related to the generated coagulant dose. This was also found to be similar to the comparative chemical coagulant dosing (CC) process.…”

Response surface methodology for process optimization in livestock wastewater treatment: A review

“…Interelectrode distance (cm) 1. COD removal (%) [ 160 ] Electrocoagulation BBD 17 1. Current density (mA cm −2 ) 2. pH 3.…”

Electrocoagulación como proceso de tratabilidad de aguas residuales de una planta de lácteos y cárnicos

“…Además, estas aguas pueden alcanzar altas concentraciones de contaminantes, dependiendo de los procesos de operación y procesamiento de los alimentos (Pinedo, Paternina y Marrugo, 2015). El tratamiento de las aguas residuales industriales requiere la reducción de los niveles de contaminantes, porque presentan un alto riesgo para los recursos hídricos y el suelo, lo que puede contribuir con perjuicios si no son tratados apropiadamente antes de ser vertidos al ambiente (Reilly et al, 2019). No obstante, las altas concentraciones de sustancias en estas aguas requieren del uso de tecnologías avanzadas para reducir la carga contaminante, ya que su tratamiento puede tornarse altamente costoso, en especial por el uso necesario de energía eléctrica en los procesos (Bustillo-Lecompte y Mehrvar, 2015).…”