Journal of Bioremediation & Biodegradation
Open Access

Production of Fertilizer from Process Water Generated by Hydrothermal Carbonization of Food Waste

De Silva KBNS¹, Senarath-Yapa M² and Gunatilake SK^1*

¹Department of Natural resources, Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka, Belihuloya, Sri Lanka

²Head-John Keells Research, Technology Incubation Center, Nanotechnology & Science Park, Homagama, Sri Lanka

Received Date: May 13, 2020 / Accepted Date: Jul 01, 2020 / Published Date: Jul 08, 2020

Citation: De Silva KBNS, Senarath-Yapa M, Gunatilake SK (2020) Production of Fertilizer from Process Water Generated by Hydrothermal Carbonization of Food Waste . J Bioremediat Biodegrad 11: 471.

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Copyright: © 2020 De Silva KBNS, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Hydrothermal Carbonization (HTC) is a promising thermochemical technique that could be practiced as a method of energy and material recovery. As food waste is a wet, inhomogeneous biomass, it shows desirable potential to undergo HTC, other than other thermal conversion technologies. According to the physiochemical characterization of process water, it contains nutrients such as, Magnesium (Mg2+), Ammonium (NH4+) and Phosphate (PO43-). Therefore, struvite precipitation was tested as the potential solution. Struvite yield was calculated in order to find out the efficiency and the feasibility of the precipitation method. Since struvite can be used as a fertilizer, building material or adsorbent, this will be a commercially viable application to produce value added product from HTC process water. According to analysed results, process water should have either a proper treatment mechanism or a properly designed water purification plant.

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