Scholarlink

<p>A bio-based coagulant of Cassia sieberiana isolated extract (CSIE) was obtained as a by-product of sequential ethanol multiple salt oil extraction from Cassia sieberiana seed (CS) for the treatment of ceramic tile industry effluent (CTIE). The coagulant and sludge were characterized by proximate and elemental analyses, and scanning electron microscope/energy dispersive x-ray spectroscopy (SEM/EDX), Fourier transform infrared spectroscopy (FTIR), thermo-gravimetric analysis/differential scanning calorimetry (TGA/DSC) and X-ray diffraction (XRD). The effects of pH, dosage, settling time and temperature on coagulation and flocculation of turbidity in the CTIE were investigated. The proximate and elemental analyses of the CS precursor gave 29.91% protein, 56.38% carbohydrate, 33.15&#xa0;mg/g calcium, 90.72&#xa0;mg/g magnesium, and 265.02&#xa0;mg/g potassium amongst other selected metals. The effectiveness of CSIE was compared to that of alum, a conventional coagulant, under similar conditions. The semi-crystalline nature of CSIE, as revealed by XRD analysis, suggests that it possesses both amorphous regions for effective adsorption and crystalline regions for structural stability during the coagulation process. The optimum coagulation of CSIE occurred at pH 8 in 30&#xa0;min and 200&#xa0;µg/ml coagulant dosage with removal efficiency of 96.16% at 25&#xa0;°C. The observed second-order kinetics suggests that the coagulation process is dependent on the interaction between CSIE and the pollutants, indicating that the rate-limiting step involves the chemical reaction between the coagulant and the pollutants in the wastewater. This study highlights the potential of CSIE as a sustainable and effective alternative to traditional chemical coagulants for wastewater treatment.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Cassia sieberiana seed extract as a high-performance bio-coagulant for treatment of ceramic tile industry effluent

  • 期刊论文

  • 发表日期：

    2026年1月23日

查看全文
  • Akor Joel Enemona,
  • Ochonogor Alfred Ezinna,
  • Ani Julius Udeh,
  • Obi Innocent Onuoraegbunam,
  • John Godwin,
  • Balogun Ayo Felix,
  • Oluwasola Henry Olumayowa

摘要

A bio-based coagulant of Cassia sieberiana isolated extract (CSIE) was obtained as a by-product of sequential ethanol multiple salt oil extraction from Cassia sieberiana seed (CS) for the treatment of ceramic tile industry effluent (CTIE). The coagulant and sludge were characterized by proximate and elemental analyses, and scanning electron microscope/energy dispersive x-ray spectroscopy (SEM/EDX), Fourier transform infrared spectroscopy (FTIR), thermo-gravimetric analysis/differential scanning calorimetry (TGA/DSC) and X-ray diffraction (XRD). The effects of pH, dosage, settling time and temperature on coagulation and flocculation of turbidity in the CTIE were investigated. The proximate and elemental analyses of the CS precursor gave 29.91% protein, 56.38% carbohydrate, 33.15 mg/g calcium, 90.72 mg/g magnesium, and 265.02 mg/g potassium amongst other selected metals. The effectiveness of CSIE was compared to that of alum, a conventional coagulant, under similar conditions. The semi-crystalline nature of CSIE, as revealed by XRD analysis, suggests that it possesses both amorphous regions for effective adsorption and crystalline regions for structural stability during the coagulation process. The optimum coagulation of CSIE occurred at pH 8 in 30 min and 200 µg/ml coagulant dosage with removal efficiency of 96.16% at 25 °C. The observed second-order kinetics suggests that the coagulation process is dependent on the interaction between CSIE and the pollutants, indicating that the rate-limiting step involves the chemical reaction between the coagulant and the pollutants in the wastewater. This study highlights the potential of CSIE as a sustainable and effective alternative to traditional chemical coagulants for wastewater treatment.