Abstract
In this study a comparative assessment was conducted between chicken feather and a conventional synthetic sorbent mat used in the oil industry to clean-up oil spill. The result of the study shows that chicken feather has higher oil sorption capacity and sorbed oil recoverability than the standard (synthetic sorbent mat), and competes well with the standard in terms of sorbed oil retainability. Chicken feather sorbed per unit mass 13.10±0.67g/g of crude oil, 11.15±0.84g/g of diesel and 9.70g/g±0.91 of kerosene while the standard sorbed per unit mass 11.50±0.54g/g of crude oil, 10.35±0.77g/g of diesel and 8.20±0.93g/g of kerosene. Sorbed oil recovered from a unit mass of chicken feather and standard are 12.25±0.38g/g of crude oil, 10.30±0.91g/g of diesel, 8.50±0.27g/g of kerosene and 9.67±0.36 g/g of crude oil, 8.40±0.95 g/g of diesel and 6.50±0.49 g/g of kerosene respectively. Langmuir adsorption model and pseudo second order models fitted the process more precisely. Chicken feather competed favourably with the standard and both can be applied on land and aqueous environment in oil spill cleanup. It is an effective and viable sorbent for oil spill clean-up. Keywords : Chicken feather, crude oil, diesel, adsorption kinetics, oil sorption capacity.
Highlights
Spill of crude oil or its lower fractions; diesel or kerosene have detrimental effects on the environment
The amount of the oils sorbed at equilibrium onto a unit mass of chicken feather and the synthetic sorbent used as standard in the study is, chicken feather; 13.10g/g of crude oil at 60 minutes, 11.15g/g at 50 minutes and 9.70g/g at 60 minutes, while the standard is; 11.50g/g of crude oil at 40 minutes, 10.35g/g of diesel at 60 minutes and 8.20g/g of kerosene at 40 minutes
This indicates that chicken feather has higher oil sorption capacity than the standard
Summary
Spill of crude oil or its lower fractions; diesel or kerosene have detrimental effects on the environment. Chicken feathers are by-product waste of poultry processing plant and produced in large amount (Agrahari and Wadha, 2010). Worldwide 24 billion chickens are killed annually and around 8.5 billion tonnes of poultry feather are produced (Agrahari and Wadha, 2010; Prasanthi et al, 2016). To determine the sorption capacity of a sorbent it needs to be compared (Volesky, 2004) This helps in efficient application of sorbents. The aim of this study is to establish the viability and efficacy of chicken feather as an oil spill sorbent for crude and its lower fractions
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