مقاله Cadmium(II) sorption and desorption in a fixed bed column using sunflower waste carbon calcium

خلاصه مقاله

The present study reports the use of sunflower waste carbon calcium–alginate beads (SWC-CAB) for cadmium removal from wastewater in continuous flow fixed bed columns. The experiments were conducted as a function of bed height, flow rate and initial Cd(II) concentration. The maximum biosorption capacity (23.6 mg/g) was attained at 30 cm bed height, 1.0 mL/min flow rate and 10 mg/L initial Cd(II) concentration. The Bohart – Adams model constants (N₀ and K) were 7.7 mg/L and 1 × 10⁻⁴ L/mg h with 0.999 R² value at 50% breakthrough time. The column regeneration efficiency after third cycle was 58.6% for cadmium.

نویسندگان

Monika Jain [ Department of Environmental Science and Engineering, Guru Jambheshwar University of Science and Technology, Hisar 125 001, Haryana, India ]

V.K. Garg [ Department of Environmental Science and Engineering, Guru Jambheshwar University of Science and Technology, Hisar 125 001, Haryana, India ]

K. Kadirvelu [ DRDO BU Centre for Life Sciences, Bharathiar University Campus, Coimbatore 641 046, Tamil Nadu, India ]

کلمات کلیدی

Helianthus annuus Cadmium Fixed – bed column mode Bohart–Adams model Breakthrough curve

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Bioresource Technology

The journal's aim is to advance and disseminate knowledge in all the related areas of biomass, biological waste treatment, bioenergy, biotransformations and bioresource systems analysis, and technologies associated with conversion or production.

حوزه های تحت پوشش : Bioresource Technology