Value-added materials recovered from waste bone biomass: technologies and applications

Area of Science:

• Materials Science
• Environmental Science
• Chemical Engineering

Background:

• Growing global population leads to increased waste bone generation, exacerbating landfill issues and health concerns.
• Waste bones contain valuable components such as calcium oxide (CaO), hydroxyapatite, beta tri-calcium phosphate, and phosphates.
• Current waste management strategies are insufficient to handle the exponential increase in bone waste.

Purpose of the Study:

• To review technologies for recovering valuable materials from waste bones.
• To discuss the potential applications of recovered materials in various fields.
• To identify research gaps and scaling-up opportunities for waste bone valorization.

Main Methods:

• Literature review of scientific publications on waste bone recycling.
• Analysis of material recovery techniques and their efficiency.
• Compilation of data on the applications of waste bone-derived materials.

Main Results:

• Waste bones can be processed into adsorbents, catalysts, catalyst supports, materials for tissue engineering, electrodes for energy storage, and soil remediation agents.
• Recovered hydroxyapatite and bone char show significant utility as catalysts and catalyst supports in organic synthesis, biodiesel production, and heavy oil hydrocracking.
• Identified diverse applications including organic synthesis, selective oxidation, and synthesis of bioactive compounds.

Conclusions:

• Waste bone recycling offers a sustainable pathway towards a circular economy, transforming waste into valuable resources.
• Further research and development are needed to optimize recovery technologies and scale-up processes for industrial application.
• Implementing waste bone valorization can significantly reduce manufacturing costs and environmental impact.