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This is to certify that your paper entitled «Investigation of the Effect of Chemical Oxidants on the Electrocoagulation Process for COD Reduction of Caustic Wastewater from the South Pars Gas Complex, Pars Special Economic Energy Zone» was indexed with 10 pages, in the CIVILICA citation database, code COI:NCECM03_301, after evaluation and approval of the referees of the "The 3rd National Conference on Environmental Challenges: The role of industry, mining, and society in developing green governance held in Tehran 2025.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above conference and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.