摘要
•Paunch waste contains 7.8 GJ energy, 13 kg N and 7 kg P per dry tonne.•Temperature phased AD was a successful method of process intensification.•Anaerobic digestion can reduce the wet mass of paunch solid waste by >60%.•Crystallization recovered 85% P and 15% N from digested paunch liquor.•An integrated process improved recovery to 95% P and >50% N from solid paunch waste.