Within five years after sending their food waste to digesters instead of to landfill, the supermarket chain Waitrose in the UK has her trucks drive on clean and fossil free fuel, made from that same waste. CNG (Compressed Natural Gas) comes from a process of anaerobic digestion, which captures biomethane from the food waste. The biomethane is then compressed to be Bio-CNG for trucks. It is cheaper than diesel and discharges 70% less carbon dioxide. Next to these advantages for the environment, the trucks are also more silent and therefore likeble to deliver groceries and other products in city centers.
More information about advantages and ROI in this article: https://www.fastcoexist.com/3068244/these-grocery-delivery-trucks-are-powered-by-food-waste