INTEGRATED METHOD AND SYSTEM FOR RECYCLING WASTE MATERIAL

摘要

Integrated methods and systems for recycling waste material including waste paper are provided, the methods including treating the waste material in the pressure vessel at an elevated processing temperature and an elevated processing pressure to form a treated waste material including a substantially re-pulped waste paper; discharging the treated waste material from the pressure vessel; and thereafter separating and diluting the treated waste material to dilute a portion including the substantially re-pulped waste paper to from about 1% to about 20% by weight solids. The recovered paper pulp fraction and substantially fiber-free recoverable/recyclable plastics and metals may be further separated and used as feedstock in a variety of subsequent processes.

主权项

1. A method for recycling waste material including waste paper comprising:
introducing the waste material into a pressure vessel; treating the waste material in the pressure vessel at an elevated processing temperature and an elevated processing pressure to form a treated waste material including a substantially re-pulped waste paper; discharging the treated waste material from the pressure vessel; and thereafter separating the treated waste material with a screening device into a first portion and a second portion, the first portion comprising the substantially re-pulped waste paper and the second portion comprising large debris, wherein the step of separating further comprises washing the first portion through the screening device with an amount of water sufficient to dilute the first portion to from about 1% to about 20% by weight solids.