Exploiting waste paper crumble using industrial biotechnology

棕榈纸有限公司每年回收40万吨废新闻纸。这产生了140,000吨纸屑(PC)废物，通过土地扩散处理需要花费400万GB。PC由大约15-20%的纤维素和70%的纸填料(碳酸钙)和少量乳胶组成。这项研究的目的是评估创新地消化纤维素以释放葡萄糖，然后精炼大碳酸盐部分以重新纳入报纸生产过程的可行性。这将避免丢弃和减少新的纸张填充剂的进口。这项研究还将评估将释放的葡萄糖通过发酵将释放的葡萄糖转化为化学品和燃料乙醇的可行性，这些酵母菌来自诺里奇的英国国家酵母培养收藏。这项研究将建立在诺里奇IFR生物精炼中心进行的初步研究的基础上，并结合Palm Paper、Lening、plc和Vireol plc的工业研究专业知识。其他来源的纤维素废物(如废纸、纤维素纤维)将纳入研究，以根据需要提高规模经济。通过这种方式，该项目将有助于解决IB的三个挑战：生产商品、平台和中间体化学品和材料；生产液体和气态生物燃料；以及新的或改进的上游或下游工艺，以降低成本和提高效率。

Palm Paper Ltd. recycles 400K tonnes of waste newsprint annually. This creates 140,000 tonnes paper crumble (PC) waste which costs £4m to dispose of by landspreading. PC comprises approximately 15-20% cellulose and 70% paper filler (calcium carbonate) with a little latex. The aim of this research is to evaluate the feasibility of innovatively digesting the cellulose to liberate glucose and to then refine the large carbonate fraction for re-incorporation into the newspaper production process. This will avoid disposal and reduce the import of new paper filler. The research will also assess the feasibility of converting the liberated glucose to chemicals and fuel ethanol by fermentation with specialist yeasts identified from the UK National Collection of Yeast Cultures at Norwich. The study will build on preliminary research carried out at the Biorefinery Centre, IFR, Norwich, in conjunction with industrial research expertise of Palm Paper, Lenzing, plc and Vireol plc. Additional sources of cellulose waste (e.g. waste paper, cellulose fibres) will be incorporated into the study to improve economies of scale as required. In this way, the project will serve to address three IB challenges: production of commodity, platform and intermediate chemicals and materials; production of liquid and gaseous biofuels and novel or improved upstream or downstream processes to reduce costs and improve efficiency.