Cansu Elgün, Baybars Ali Fil

Evaluation of Ti/Pt Anode Efficiency and Energy Consumption in Turbidity and Suspended Solids Removal from Paper Industry Wastewater: The Effect of pH and Support Electrolyte Type

Introduction

Evaluation of ti/pt anode efficiency and energy consumption in turbidity and suspended solids removal from paper industry wastewater: the effect of ph and support electrolyte type. Optimize paper industry wastewater treatment using Ti/Pt anode electrooxidation. Evaluate turbidity, suspended solids removal, energy, pH, and electrolyte for high efficiency.

Abstract

In the research, different experimental setups were used to examine the treatment of wastewater from the paper industry using the electrooxidation method, one of the electrochemical treatment methods in the batch system. In the 2000 mL volume jacketed glass reactor utilized for the treatment of wastewater from the paper industry, 4 anode and 4 cathode sieve type plates of 7 cm x 10 cm dimensions were positioned at 0.5 cm intervals, and 1200 mL wastewater was used in the tests. Coated sieve type Ti/Pt electrodes were employed as the anode in the electrooxidation studies, and uncoated sieve type Ti electrodes were used as the cathode. It was determined that the active anodic wet surface area was 1078 cm2 . The removal rates of pollutant parameters such as turbidity and SS (Suspended Solids) in the experiments; the effects of wastewater initial pH value and supporting electrolyte type parameters were investigated. According to the results, the most effective pH value for Ti/Pt anode type at 400 rpm mixing speed was determined to be waste water natural pH (7.5), and 0.50 M NaCl was the most successful supporting electrolyte type. 96.92% Suspended Solids removal efficiency and 95.38% turbidity removal efficiency for Ti/Pt anode were achieved under ideal conditions. In addition, 312.05 kW-hour/kg COD is determined as the energy consumption value.

Review

This study presents a focused investigation into the efficiency and energy consumption of Ti/Pt anodes for treating paper industry wastewater via electrooxidation. The research addresses a pertinent environmental challenge, given the significant pollutant load associated with paper manufacturing. By systematically exploring the effects of initial pH and supporting electrolyte type on turbidity and suspended solids (SS) removal, the authors aim to optimize the electrochemical treatment process in a batch system. The use of a well-defined experimental setup, including specific electrode configurations and an accurately determined active anodic surface area, provides a solid foundation for the reported findings. The methodology is clearly outlined, detailing the use of a 2000 mL jacketed glass reactor with sieve-type Ti/Pt anodes and Ti cathodes. The study identifies optimal conditions for the Ti/Pt anode at a mixing speed of 400 rpm: a natural wastewater pH of 7.5 and 0.50 M NaCl as the supporting electrolyte. Under these conditions, impressive removal efficiencies were achieved, with 96.92% for suspended solids and 95.38% for turbidity, demonstrating the high efficacy of the developed system for these specific parameters. Furthermore, the abstract provides an energy consumption value of 312.05 kW-hour/kg COD, an important metric for evaluating the economic viability of the process. While the abstract highlights significant achievements in turbidity and SS removal, a more comprehensive assessment would benefit from further detail. Specifically, although energy consumption is reported per kg COD, the abstract does not explicitly present COD removal efficiencies or initial/final COD values, which would allow for a complete evaluation of organic pollutant degradation. Future work could also explore the scalability of this batch process, investigate the long-term stability and regeneration of the Ti/Pt electrodes, and provide a detailed cost analysis to compare with existing or alternative treatment technologies. Nevertheless, this study offers valuable insights into the electrooxidation treatment of paper industry wastewater, providing critical data for process optimization and demonstrating promising removal efficiencies for key physical pollutants.

Full Text

Comments

You need to be logged in to post a comment.