Process to recover a portion of post-recycling municipal solid waste

This specification describes a system and process for treating waste， for example municipal solid waste (MSW) or post-recycling municipal solid waste. The system includes a press and a pulper. The press is adapted to provide a wet fraction of the waste suitable for anaerobic digestion and rejects. The pulper is adapted to receive the rejects and produce pulp. The pulper may be， for example， a drum pulper. In the process， waste is separated into a press into an organic fraction and rejects. The organic fraction is treated by way of anaerobic digestion. The rejects are separated， optionally in a drum pulper， to produce a fraction containing pulp. The pulp can be re-used to make paper or other products. In some case， 70% or more or 80% or more of MSW can be diverted from landfill.