Waste processing
AssigneeFiberight Limited
InventorsCharles BANKS, Nicholas Mark THOMPSON, Dhivya Jyoti PURI, Peter SPELLER, Craig STUART-PAUL
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Abstract
The present invention relates generally to the field of waste processing. The method comprises separating waste into at least two parts, comprising: (i) mainly food waste (fines) and (ii) mainly paper and other recyclable material (overs). The overs are pulped and washed to obtain a cellulose-rich biomass and the fines are optionally processed separately to recover a cellulose-rich biomass and the cellulose-rich biomass from both the fines and the overs may be combined.
Claims24
A method for processing mixed waste, comprising the steps of:
- a) separating said waste into at least two parts, comprising:
- (i) mainly waste (fines) and (ii) mainly paper and other recyclable material (overs);
- b) pulping said overs;
- and
- c) washing said overs to obtain a cellulose-rich biomass;
- and optionally
- d) processing said fines to obtain a cellulose-rich biomass.
(canceled)
A method for the processing of fines (comprising mainly food waste), comprising the steps of thermo-mechanical pulping followed by density separation.
Cellulose-rich biomass comprising less than about 6% ash or less than about 7% ash or less than about 8% ash or less than about 9% ash or less than about 10% ash and a glucan:xylan ratio of between about 5-8:1.
21-22. (canceled)
(canceled)
Dependencies are inferred from the claim text.