Production of Hydroxylapatite from Biowaste, Chicken Manure by Hydrothermal Process

Sevgihan Yildiz Bircan, Ichiro Naruse, Kozo Matsumoto, Kuniyuki Kitagawa

Department of Mechanical Science and Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan.
EcoTopia Science Institute, Nagoya University, Nagoya, Japan.

DOI: 10.4236/jsbs.2013.31010                

Abstract

Hydrothermal process has been applied for effective production of Hydrogen from biowastes. In this study hydrothermal process for production of valuable Hydroxylapatitefrom chicken manure containing phosphorus was focused on. Conditions of 400?C and 26 - 27 MPa with addition of 1 mmol Ca(OH)₂ were determined as the optimal by using O-phospho-DL-serine as a model compound. Afterwards, the real biowaste containing phosphorous, chicken manure was processed under the same conditions. Formation of a Hydroxylapatite; in the solid residue was confirmed from X-ray diffraction (XRD) patterns, after purification. It was found that 27.9% of P in the chicken manure was converted to Hydroxylapatite. With the use of acetic acid as a chemical purification medium, Hydroxylapatite was obtained.

Keywords

Hydrothermal Process; Biowaste; Chicken Manure; Hydroxylapatite

Conflicts of Interest

The authors declare no conflicts of interest.

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