Researchers at Lund University in Sweden have now succeeded in making new viscose-from wornout cotton sheets.Old textiles around the world end up at the rubbish tip and are often burned.In Sweden,they are generally bu...Researchers at Lund University in Sweden have now succeeded in making new viscose-from wornout cotton sheets.Old textiles around the world end up at the rubbish tip and are often burned.In Sweden,they are generally burned to produce district heating.Extensive development work is being conducted to give old clothes and textiles a worthier end.The planet really needs recycled textiles,as it takes a lot of energy,water and land to cultivate cotton and other plant sources for textiles.However,there are many challenges.展开更多
文摘Researchers at Lund University in Sweden have now succeeded in making new viscose-from wornout cotton sheets.Old textiles around the world end up at the rubbish tip and are often burned.In Sweden,they are generally burned to produce district heating.Extensive development work is being conducted to give old clothes and textiles a worthier end.The planet really needs recycled textiles,as it takes a lot of energy,water and land to cultivate cotton and other plant sources for textiles.However,there are many challenges.
文摘为量化和评价粘胶短纤维生产废水排放造成的水环境影响,分别基于灰水足迹和水劣化足迹理论核算与评价了粘胶短纤维生产过程的水环境负荷。结果表明:制浆阶段的黑液废水和纺练阶段的精练废水的灰水足迹较大,分别为3 375.35m^3/t和4 331.84m^3/t,特征污染物分别为COD和Zn离子;制浆阶段黑液废水的水体富营养化足迹最大,为9.05 kg PO4^3-eq/t,约占生产工序水体富营养化足迹的75%;纺练阶段精练废水的水体生态毒性足迹最大,为3.38×10^6 m^3 H2O eq/t,约占生产工序水体生态毒性足迹的73%;水酸化足迹主要集中于二浴废水和精练废水,分别为34.01 kg SO2 eq/t和46.86 kg SO2 eq/t。
