Phosphorus extraction from fish waste bones ash by acidic leaching method

Darwish, Mohamad and Aris, Azmi and Puteh, Mohd Hafiz and Abdul Kadir, Aeslina and Mohamed Najib, Mohamed Zuhaili and Mustafa, Shaymaa (2020) Phosphorus extraction from fish waste bones ash by acidic leaching method. Asian Journal of Water, Environment and Pollution, 17 (2). pp. 1-6. ISSN 0972-9860

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The worldwide demand of phosphorus (P) is rising rapidly; however phosphate ores are not renewable. Fish bones contain high amounts of P, but hardly recycled or reused. Therefore, this study investigated P extraction from fish waste bones by acidic leaching method. The study shows that P content in fish bones ash is around 17 wt.%. Acidic leaching of P is carried out using different concentrations of sulphuric acid (H2SO4), to determine the optimum condition of P recovery. More than 97% of P is extracted using 2 M H2SO4 and an acid-ash ratio of 1.5 kg H2SO4/kg ash. Besides, it was found that a reaction period of 90 min is enough to accomplish complete dissolution of fish waste bones ash. The present work suggested that recovering P from fish bones ash is worthy, which is highly advantageous for further applications that apply P additions.

Item Type: Article
Uncontrolled Keywords: Phosphate; fish bones ash; sulphuric acid; phosphorus recovery.
Subjects: T Technology > T Technology (General)
T Technology > TP Chemical technology > TP155-156 Chemical engineering
Divisions: Faculty of Civil Engineering and Built Environment > Department of Civil Engineering : Water and Environmental Engineering
Depositing User: Miss Afiqah Faiqah Mohd Hafiz
Date Deposited: 30 Jan 2022 02:57
Last Modified: 30 Jan 2022 02:57

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