Investigation on Solar-Powered Electrocoagulation (SPEC) for the Treatment of Domestic Wastewater (DWW)

Abstract

Solar-powered electrocoagulation (SPEC) was used for the treatment of domestic wastewater by using aluminum electrodes. As a single-unit process for treating household wastewater, the EC is solar-powered. The aim of this research was the removal of chemical oxygen demand (COD), TDS, and turbidity by SPEC. Optimization of various operating parameters such as pH, voltage/current, electrode gap, and pollutant concentration was first performed using direct electrical current. By using batteries and charge controllers with panels, the SPEC reactor has achieved consistent and efficient performance. The effects of COD, turbidity, and TDS exclusion of functioning parameters such as density (8–40 A/m2) and detention time (5–30 min) were examined. The COD reduction was 85%, and removal efficiency of TDS and turbidity was 70.18% and 87.4%. The results have shown the technical feasibility of SPEC design as a potential method for domestic wastewater treatment by electrocoagulation. Further analytical study of sludge was also performed by FTIR and XRD analysis.

Optimization of Pilot scale Biogas Plant for mixed food wastes with cow dung by anaerobic digestion process

“…High volatile solid content is beneficial for digestion. The highest C:N ratio (25.88), which was optimal for methanogenic activity because the ideal C:N ratio spans from 20:1 to 30:1, was found in mixed food waste and cow dung waste (Muniasamy et al, 2022). Mixed Food Waste and Cow Dung Waste were combined in equal parts with low carbon waste ratios (Cow Dung Waste (20.75)), to reduce its C: N ratio to (25.88), which was necessary and ideal level, in order to provide stable pH for better methanogen activity which is displayed in Table 1.…”