Kitchen waste bone-driven enzyme-induced calcium phosphate precipitation under microgravity for space biocementation

Abstract

This study validates the feasibility of extracting calcium and phosphorus from kitchen waste bones for crude enzyme-induced calcium phosphate precipitation (EICPP) under both normal and microgravity conditions. The experimental results demonstrate no significant differences in the degree of reaction and characteristics of precipitation between these environments. By leveraging local resources, reducing material transport costs, and addressing waste management challenges, this research underscores the potential for extraterrestrial construction, thereby enhancing sustainability in space environments. These findings offer promising insights for the application of space biocementation, particularly during the expansion phase of human settlements.

Keywords

Space exploration / In-situ resource utilization (ISRU) / Biocement / Enzyme-induced calcium phosphate precipitation (EICPP) / Crude enzyme / Waste bone

CRediT authorship contribution statement

Zhen Yan: Writing - review & editing, Writing - original draft, Visualization, Investigation, Funding acquisition. Kazunori Nakashima: Resources. Chikara Takano: Resources. Satoru Kawasaki: Resources, Funding acquisition, Data curation.

Declaration of Competing Interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Acknowledgements

This work was supported by JSPS KAKENHI, Grant Number JP22H01581, and was partly supported by JST SPRING, Grant Number JPMJSP2119.

Data statement

All the experimental data that support the findings of this study are available from the corresponding author upon reasonable request through email.

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