Thöni is one of the leading suppliers of continuous high solids anaerobic digestion (cHSAD) systems worldwide. Our sales, engineering and implementation services staff are located at our North American head offices in Pleasant Hill, CA. Thöni cHSAD solutions are ideal for the digestion and optimal biogas recovery from yard/garden & food waste, MRF fines/OFMSW and other high solid contaminated feedstocks. More >>