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6CCVD Research

Electro-Oxidation of Biofloc Aquaculture Effluent Through a DoE-Driven Optimization in a Batch Reactor

At a Glance

Section titled “At a Glance”
MetadataDetails
Publication Date2025-10-22
JournalProcesses
AuthorsEver Peralta-Reyes, Gina GĂłmez-GĂłmez, Alfredo Gallardo‐CollĂ­, Juan Meraz, Carlos IvĂĄn PĂ©rez‐Rostro
InstitutionsTecnolĂłgico Nacional de MĂ©xico, Pontificia Universidad CatĂłlica del Ecuador

Abstract

Section titled “Abstract”

In this study, wastewater generated from tilapia biofloc aquaculture was treated using the electro-oxidation (EO) process in a batch reactor. Optimal reaction conditions were determined through a robust screening design based on a Taguchi L9 (34) orthogonal array. The evaluated parameters included three anode-cathode configurations—boron-doped diamond with titanium (BDD-Ti), BDD with copper (BDD-Cu), and BDD with BDD—as well as current intensity (1-2 A), initial pH (5.5-11.5), and treatment time (2.5-3.5 h). The EO process exhibited high removal efficiencies for key water quality indicators. Under optimal conditions (BDD-Ti, i = 2 A, t = 3.5 h, pH0 = 11.5), removal efficiencies of 96.57% for chemical oxygen demand (COD), 99.06% for total ammoniacal nitrogen (TAN), 67.68% for turbidity, and 81.09% for total organic carbon (TOC) were obtained. Phytotoxicity and bioassay tests further confirmed the detoxification potential of the treated effluent. Overall, the proposed green treatment approach demonstrates that EO is a viable and sustainable strategy for improving effluent quality and advancing water management in intensive aquaculture systems.

Tech Support

Section titled “Tech Support”

Original Source

Section titled “Original Source”

References

Section titled “References”
  1. 2023 - Electrochemical Treatment of Aquaculture Wastewater Effluent and Optimization of the Parameters Using Response Surface Methodology [Crossref]
  2. 2023 - Aquaculture from Inland Fish Cultivation to Wastewater Treatment: A Review [Crossref]
  3. 2011 - Kinetics of Electro-Oxidation of Ammonia-N, Nitrites and COD from a Recirculating Aquaculture Saline Water System Using BDD Anodes [Crossref]
  4. 2005 - Electrochemical Removal of Ammonia, Chemical Oxygen Demand and Energy Consumption from Aquaculture Waters Containing Different Marine Algal Species [Crossref]
  5. 2012 - Removal of Total Ammonia Nitrogen (TAN), Nitrate and Total Organic Carbon (TOC) from Aquaculture Wastewater Using Electrochemical Technology: A Review [Crossref]
  6. 2018 - Advanced Oxidation Process-Mediated Removal of Pharmaceuticals from Water: A Review [Crossref]
  7. 2017 - Electrochemical Advanced Oxidation Processes: A Review on Their Application to Synthetic and Real Wastewaters [Crossref]
  8. 2018 - Treatment of Winery Wastewater by Anodic Oxidation Using BDD Electrode [Crossref]
  9. 2025 - Treatment of Cheese Whey Wastewater by Electrochemical Oxidation Using BDD, Ti/RuO2-TiO2, and Ti/RuO2-IrO2-Pt Anodes: Ecotoxicological and Energetic Evaluation [Crossref]
  10. 2023 - Electrochemical Removal of Ammonium Nitrogen in High Efficiency and N2 Selectivity Using Non-Noble Single-Atomic Iron Catalyst [Crossref]

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