Asia is turning cow manure into clean hydrogen, a breakthrough that could change how we produce energy. On Japan’s Hokkaido Island, the Shikaoi Hydrogen Farm project is leading the way. With over 850,000 cows, Hokkaido generates 25,500 tons of manure daily, most of which was previously wasted.
Cow Manure to Clean Hydrogen
The process starts by putting cow manure and urine into an anaerobic digester. Bacteria break down the organic matter, producing biogas (mainly methane) and liquid fertilizer. The biogas is then purified and undergoes a steam methane reforming process at high temperatures, producing hydrogen. This system creates a sustainable cycle where everything is used.
The solid waste becomes natural fertilizer for crops. The formic acid from the process preserves animal feed. The hydrogen powers local farms, heating systems, and even zoos.
The Shikaoi Hydrogen Farm produces 70 cubic meters of hydrogen daily. This amount can fuel 28 vehicles, including tractors and forklifts that are hard to electrify with batteries. The hydrogen also provides heat and power to local businesses, replacing fossil fuels.
However, storing hydrogen at high pressure is expensive. This makes production costly. Despite the challenges, using manure for energy is a promising long-term solution to reduce fossil fuel dependence. Other countries, such as the US and Brazil, are exploring similar methods using different organic waste like pig waste, chicken waste, coconut husks, and sugarcane bagasse. This approach not only produces clean energy but also helps manage waste.
A New Energy Model for Mexico?
Mexico could benefit from adopting this model. By investing in such projects and attracting foreign investment, Mexico can create a circular economy that minimizes waste. This approach is crucial for a sustainable future, using unexpected sources like animal waste to generate energy. While there is much work to be done to reach full efficiency, taking small steps can make a difference. As other regions explore similar methods, the potential for widespread adoption grows. Countries like Japan are already experimenting with different types of waste, such as human waste in Fukuoka.