Since the first social organisations until the early 18TH century, the trade was the main economic activity of mankind. Industrial production was in its infancy, handmade, thumb. From the 18th and 19th centuries, driven by the Industrial Revolution, the industries have been consolidated as a major engine of mankind and of the global economy, becoming […]

Used cooking oil is commonly thrown in the sewer network, creating the risk of contaminating the water table and even compromise the plumbing and piping system. However, if thrown correctly, the oil can be used for the production of SOAP, detergent, glycerin, paint and even fuel. Despite being biodegradable, oil is composed of water-insoluble substances […]