Tag: Waste repurposing

Every year, the global rice milling industry generates millions of tons of rice husks, a byproduct once discarded as waste. However, due to their unique properties, the diverse benefits of rice husks are now being leveraged across multiple industries, creating valuable resources from what was previously considered trash.

Over 10 million tons of shellfish are produced annually, with a vast amount of shells discarded as waste. Yes, you can make calcium carbonate from seashells, a process that not only repurposes this abundant biogenic waste but also offers a sustainable alternative to mined minerals. This guide explores the scientific principles and practical steps involved in transforming discarded shells into valuable material.

Over 100 million tons of sugarcane bagasse, the fibrous residue of sugar production, are generated globally each year, giving this agricultural byproduct a new life. But what is sugarcane fiber used for? This versatile and highly sustainable material is being repurposed across various industries to create eco-friendly products and generate renewable energy.

While it's a common misconception, a chicken eggshell is actually composed of more than 95% calcium carbonate, not hydroxyapatite. However, recent advances in materials science show that these waste shells can be sustainably synthesized into hydroxyapatite, a key component of human bone and enamel.