The main byproduct is glycerin, which can be purified and reused in soap production, cosmetics, or biogas systems. Methanol-water mixtures are also produced and can be recovered and reused. Solid residues from rendering can be processed into animal feed, fertilizer, or burned for energy recovery. The GlobeCore USB biodiesel plant includes features for glycerin separation and methanol recycling, supporting a low-waste, circular biofuel production model. Proper waste handling ensures environmental compliance and boosts profitability.