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<p>Rapid urbanization and industrial intensification produce high-strength effluents, creating a critical need for sustainable treatment technologies and alternatives to conventional inorganic coagulants. This study addresses this need by evaluating bioflocculants synthesized from slaughterhouse blood plasma for effluent clarification. The bioflocculants were produced from porcine, bovine, and poultry plasma via acid hydrolysis, characterized (Point Zero Charge, Fourier Transform Infrared Spectroscopy, and Thermogravimetric analysis), and their performance was optimized using Response Surface Methodology (RSM-CCRD). Characterization confirmed their suitability, revealing isoelectric points near neutrality (6.45–6.64), the presence of key functional groups (e.g., amide, –CO, –OH, H–S(= O)<sub>2</sub>–OH, ) conducive to coagulation, and high thermal stability (up to 400&#xa0;°C). Under optimal conditions, the agents achieved high turbidity removal efficiencies in a synthetic wastewater, reaching 95%, 93%, and 90% for porcine-, bovine-, and poultry-derived bioflocculants, respectively. These findings demonstrate the successful development of effective, low-cost clarifiers from an industrial by-product, underscoring the significant potential of a circular economy approach for sustainable wastewater management.</p> Graphical Abstract <p></p>

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Optimization and Performance Assessment of a Novel Bioflocculant from Animal Blood Plasma for Wastewater Treatment

  • 期刊论文

  • 发表日期：

    2025年11月18日

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  • João Paulo Eckert,
  • Dionatan Morandin de Lima,
  • Gabriele Caroline Thomas,
  • Ariane Roberta Frosi,
  • Laura Cassol Mohr Celuppi,
  • Janayne Sander Godoy,
  • Micheli Zanetti,
  • Gustavo Lopes Colpani

摘要

Rapid urbanization and industrial intensification produce high-strength effluents, creating a critical need for sustainable treatment technologies and alternatives to conventional inorganic coagulants. This study addresses this need by evaluating bioflocculants synthesized from slaughterhouse blood plasma for effluent clarification. The bioflocculants were produced from porcine, bovine, and poultry plasma via acid hydrolysis, characterized (Point Zero Charge, Fourier Transform Infrared Spectroscopy, and Thermogravimetric analysis), and their performance was optimized using Response Surface Methodology (RSM-CCRD). Characterization confirmed their suitability, revealing isoelectric points near neutrality (6.45–6.64), the presence of key functional groups (e.g., amide, –CO, –OH, H–S(= O)2–OH, ) conducive to coagulation, and high thermal stability (up to 400 °C). Under optimal conditions, the agents achieved high turbidity removal efficiencies in a synthetic wastewater, reaching 95%, 93%, and 90% for porcine-, bovine-, and poultry-derived bioflocculants, respectively. These findings demonstrate the successful development of effective, low-cost clarifiers from an industrial by-product, underscoring the significant potential of a circular economy approach for sustainable wastewater management.

Graphical Abstract