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Nanostructured fusiform hydroxyapatite particles precipitated from aquaculture wastewater / Covadonga Correas; Michael L. Gerardo; Alexander M. Lord; Michael B. Ward; Enrico Andreoli; Andrew Barron; Alex Lord

Chemosphere, Volume: 168, Pages: 1317 - 1323

Swansea University Authors: Enrico, Andreoli, Andrew, Barron, Alex, Lord

Abstract

The present work represents a new approach for the isolation of uniform nano particulate hydroxyapatite (HAp). The chemical characterization of a calcium phosphate product obtained from industrial trout farm aquaculture wastewater by two different routes, washing either with a basic aqueous medium (...

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Published in: Chemosphere
ISSN: 0045-6535
Published: 2017
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa31356
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Abstract: The present work represents a new approach for the isolation of uniform nano particulate hydroxyapatite (HAp). The chemical characterization of a calcium phosphate product obtained from industrial trout farm aquaculture wastewater by two different routes, washing either with a basic aqueous medium (washNaOH) or followed by a further washing with ethanol (washEtOH), is explored. Characterization of the isolated materials includes morphology studies (SEM and TEM), structural (XRD, electron diffraction), compositional (EDX) and thermogravimetric analysis (TGA). The obtained products are a mixture of different compounds, with hydroxyapatite the predominant phase. The morphology is unusually nanometric size with fusiform shaped particles, such characteristics are ordinarily only obtained by synthetic routes. This process of phosphate precipitation represents a unique self-sufficient process to be compared to conventional chemical or biological practices for precipitating phosphate.
College: College of Engineering
Start Page: 1317
End Page: 1323