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Carob has shown considerable potential as a biomaterial in wastewater treatment and as an element of environmentally sustainable development because of its availability and lack of toxicity to humans. This has inspired the current study, which is based on experiment design to optimize the two operating factors: initial value of pH and biocoagulant dosage. The impact of these factors on the efficiency of reducing chemical oxygen demand (COD) and Congo Red removal (CR) was examined using the biocoagulation/bioflocculation process and the response surface methodology (RSM) in conjunction with the central composite faced design (CCFD). While the biocoagulant dosage had a negligible impact on the elimination of supernatant dye and the reduction of COD, the initial pH value had a substantial impact. According to experimental findings, a pH of 2 and a biocoagulant dosage of 4 g/L could achieve the greatest decrease of dye and COD. Under these conditions, dye and COD reductions efficiencies were 94.23% and 86.25%, respectively. Additionally, the study demonstrated adequacy of both experimental and predicted values based on the analysis of variances (ANOVA) coefficient of determination R2 values, which are higher than 98% and 94% for dye and COD elimination efficiencies, respectively.

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A New Strategy for the Management of Waste Water Treatment Using Biomaterials

  • 会议论文

  • 发表日期：

    2025年

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  • Asma Ayat,
  • Sihem Arris,
  • Halima Aissaoui,
  • Amina Abbaz,
  • Yasser Boumezough,
  • Djihane Khechine,
  • Khaoula Khellaf,
  • Chaima Khayri

摘要

Carob has shown considerable potential as a biomaterial in wastewater treatment and as an element of environmentally sustainable development because of its availability and lack of toxicity to humans. This has inspired the current study, which is based on experiment design to optimize the two operating factors: initial value of pH and biocoagulant dosage. The impact of these factors on the efficiency of reducing chemical oxygen demand (COD) and Congo Red removal (CR) was examined using the biocoagulation/bioflocculation process and the response surface methodology (RSM) in conjunction with the central composite faced design (CCFD). While the biocoagulant dosage had a negligible impact on the elimination of supernatant dye and the reduction of COD, the initial pH value had a substantial impact. According to experimental findings, a pH of 2 and a biocoagulant dosage of 4 g/L could achieve the greatest decrease of dye and COD. Under these conditions, dye and COD reductions efficiencies were 94.23% and 86.25%, respectively. Additionally, the study demonstrated adequacy of both experimental and predicted values based on the analysis of variances (ANOVA) coefficient of determination R2 values, which are higher than 98% and 94% for dye and COD elimination efficiencies, respectively.