Potential Utilization of Urine as a Power Source and Agricultural Resource; Waste to Wealth

Abstract

Humans create an estimated 6.4 trillion litres of pee annually, which is often considered to be waste even though it has the potential to be a large source of liquid fertilizer, power, and other resources that may be used to grow the economy. This article addresses physicochemical properties, energetic value, hydrogen production methodology, socioeconomic uses, and sustainable energy sources for household use that might aid in the urea's conversion into hydrogen molecules at low-cost energy generation. The results of the laboratory examination of the examined urine showed 0.01% magnesium, 0.01% calcium, 0.03% uric acid, 0.04% ammonia, 0.1% sodium, 0.11% creatinine, 0.11% phosphate, 0.16% sulphate, 0.5% potassium, 0.61% chlorine, and 1.82% urea. Urea represents 52% of urine constituents with the highest concentration (1.82%), making it a significant source of clean fuel and the main producer of hydrogen gas. 1.08 g of hydrogen gas was produced from 15 litres of used urinals, and the amounts were 78.9 g, 146.2 g, 218 g, 289 g, and 343.5 g, respectively. In the same amount of time, a generator powered by gasoline consumes more fuel than one powered by hydrogen. Hydrogen burns more effectively than gasoline, using 33KW energy consumption compared to 33.5 MJ for the same amount of 1 kg of gasoline. When used as a generator fuel, Hydrogen is around 15% more efficient than gasoline. Hydrogen is a fully clean source of energy for both the industrial and home markets because its combustion yields solely water vapour.