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Related Experiment Video

Updated: Feb 14, 2026

Precision Measurements and Parametric Models of Vertebral Endplates

Precision Measurements and Parametric Models of Vertebral Endplates

Published on: September 17, 2019

Process parametric study for COD removal of electroplating industry effluent.

Dharmesh H Sur^1,2, Mausumi Mukhopadhyay¹

¹1Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat 395007 India.

|February 7, 2018

Summary

This summary is machine-generated.

This study optimized chemical oxygen demand (COD) reduction in electroplating wastewater using Pseudomonas bacteria. Optimal conditions achieved 97.52% COD reduction, demonstrating effective bioremediation.

Keywords:

COD Electroplating effluent Gas velocity Inoculum volume Modeling

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Area of Science:

Environmental Microbiology
Bioremediation Engineering
Wastewater Treatment

Background:

Electroplating effluent poses environmental challenges due to high chemical oxygen demand (COD).
Biological treatment using microorganisms offers a sustainable approach for degrading pollutants.
Optimizing operational parameters is crucial for efficient bioremediation of industrial wastewater.

Purpose of the Study:

To investigate the impact of various operational parameters on COD reduction in electroplating effluent using Pseudomonas aeruginosa and Pseudomonas putida.
To develop mathematical correlations for predicting COD reduction efficiency based on key parameters.
To identify optimal conditions for maximizing COD removal from electroplating wastewater.

Main Methods:

Batch mode bioreactor experiments were conducted to evaluate COD reduction.
Parameters studied included inoculum size, gas velocities, bed heights, static bed heights, media particle sizes, and H/D ratio.
Nonlinear regression analysis was used to derive mathematical correlations for COD reduction.

Main Results:

Maximum COD reduction of 97.52% (28.30 ppm) was achieved under specific conditions.
Optimal parameters included 10% inoculum size, 0.0027 m/s gas velocity, and 2.43 cm static bed height.
Mathematical correlations were developed and validated to represent the COD reduction process.

Conclusions:

Bioremediation using Pseudomonas species is highly effective for electroplating effluent treatment.
Operational parameters significantly influence COD reduction efficiency.
The derived mathematical models can predict and optimize the bioremediation process for industrial applications.