分阶段链式灰水足迹核算及实例分析  

Chain type assessment method of grey water footprint and case study

作　　者：许璐璐[1] 吴雄英[1,2] 陈丽竹[1] 丁雪梅[1,3] 

机构地区：[1]东华大学服装.艺术设计学院,上海200051 [2]上海出入境检验检疫局,上海200135 [3]东华大学现代服装设计与技术教育部重点实验室,上海200051

出　　处：《印染》2015年第16期38-41,共4页China Dyeing and Finishing

基　　金：国家自然科学基金(71373041);东华大学中央高校基本科研业务费专项

摘　　要：纺织品灰水足迹定量反映了生产对水资源的压力和对水环境的影响。从工序废水流向考虑,基于"水足迹评价手册",提出分阶段核算灰水足迹的方法,并建立了产品链式灰水足迹核算模型,定量各阶段灰水足迹值,为评价产品生产对各阶段的压力提供新思路。以涤纶针织珊瑚绒布染色工序产生的COD为例,得到染色生产灰水足迹为11.67 m3/t,染色排放灰水足迹为10.60 m3/t,染色环境灰水足迹为34.45 m3/t。其中染色环境灰水足迹值最大,表明染色工序产生的废水主要对水环境同化阶段造成较大的压力。Grey water footprint in textile quantitatively reflects the impact of production on the aquatic en- vironment and the pressure on water resource. Considering the flow of wastewater and ＂Water Foot- print Assessment Manual＂, a phased approach of the grey water footprint accounting is proposed,and the accounting model of the chain type grey water footprint is established which provides a new way to evaluate the pressure of each stage of producing processes. Takeing COD of knitted polyester coral vel- vet in dyeing process as an example, grey water footprint of dyeing process is 11.67 m3/t, grey water footprint of wastewater discharge is 10.60 m3/t, grey water footprint of environment is 34.45 m3/t. The re- sults show that the dyeing wastewater causes high pressure on assimilation stage of aquatic environ- ment.

关 键 词：染色废水 灰水足迹 核算 针织物 涤纶 

分 类 号：X791[环境科学与工程—环境工程]