Title
Biosorption of lead(II) using Gossypium hirsutum seed cake biomass: Biosorption,Used
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The discharge of heavy metals from industrial effluents into aquatic sources has become a matter of concern over the last few decades. For the removal lead (II) ions from aqueous solutions biosorption is a cost effective method especially for the huge volumes of effluents. In the present study effect of cotton (Gossypium hirsutum) seed cake biomass on biosorption of lead (II) from aqueous solutions was deliberated. It was indicated that adsorption capacity q, (mg/g) and percentage adsorption was function of biosorbent size, biosorbent dose, pH and initial lead (II) concentration. Optimized percentage adsorptions were observed at smaller size of biosorbent 0.355 mm, 0.2 g dose, pH 5.0 and 100 mg/L lead (II) concentration. Kinetic study revealed that adsorption was rapid in first fifteen minutes and equilibrium was achieved after six hours. At equilibrium, the maximum metal uptake was 45.29 mg/g with percentage adsorption 86.68 at pH 5.0. The Langmuir isotherm model with correlation coefficient (0.93) fitted well to the data of biosorption of lead (II), corroborating that the uptake of lead was chemical, saturable and equilibrated mechanism.
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Shipping & Returns
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We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.