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	纺织印染企业水足迹测算案例
	孙清清 ; 黄心禺 ; 石磊 ; SUN Qing-qing ; HUANG Xin-yu ; SHI Lei
	2016-03-30 ; 2016-03-30
关键词	企业水足迹 印染 节水减排 削减 corporate water footprint textile and dyeing water saving emission reduction X791
其他题名	Corporate Water Footprint of Textile Industry: Methodology and Case Study
中文摘要	企业水足迹可用于节水减排效果的评价.企业蓝水足迹指企业对传统水源的消耗,绿水足迹指企业收集处理并用于生产等目的的降水量;灰水足迹指以自然本底浓度和环境水质标准为基准,将企业产生的污染物负荷吸收同化所需的淡水量.概化了企业用、排水模型,并基于《水足迹评价手册》建立了企业水足迹测算方法,测算了企业蓝水足迹、绿水足迹和灰水足迹,以及节水减排措施对削减水足迹的贡献率.根据该测算方法对某纺织印染企业开展了案例研究.结果表明:1经过清洁生产审核,某纺织印染企业的单位产品产量蓝水足迹为171 tt,削减了26.3%;单位产品产量灰水足迹为146 tt,削减了31.1%;而由于降水的采用,单位产品产量绿水足迹由0 tt增至8 tt;2在节水减排贡献方面,水回用措施显著大于工艺节水措施,节水和水回用措施分别削减蓝水足迹1.77×104和48.60×104t,二者分别削减灰水足迹1.60×104和57.80×104t.; Corporate water footprint can provide guidelines for enterprises to reduce water consumption and protect the water environment.Based on field survey and literature review,a general corporate water flowchart was outlined,and a framework was established to calculate corporate blue water,green water and grey water footprint. The blue water footprint refers to consumption of blue water resources( i. e.,surface and groundwater) along the supply chain of a product. The green water footprint refers to consumption of green water resources.The grey water footprint refers to pollution,and is defined as the volume of freshwater that is required to assimilate the load of pollutants given natural concentrations and existing ambient water quality standards. The present study explores the potential to calculate the contribution and/or reduction of different measures,and seeks to comprehend the internal water use information,such as the entire plant's water balance,detail of water use,water yield for water conservation and recycling measures. Considering a textile and dyeing plant as an example,the water footprints before and after a cleaner production audit were calculated. The results show: 1) By measuring per unit production,the blue water footprint was reduced by 26. 3% to 171 t/t; the green water footprint per unit production increased from 0 t/t to8 t/t; and,the grey water footprint per unit production was reduced by 31. 1% to 146 t/t. 2) By conserving and recycling water,the blue water footprints were reduced by 17,700 t and 16,000 t,respectively,and the grey water footprints were reduced by 486,000 t and578,000 t,respectively. The research aims to further refine the methodology of the water footprints so that it serves various purposes in different sectors of the industrial society,while striving for coherence,consistency and scientific validity.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/144251]
专题	清华大学
推荐引用方式 GB/T 7714	孙清清,黄心禺,石磊,等. 纺织印染企业水足迹测算案例[J],2016, 2016.
APA	孙清清,黄心禺,石磊,SUN Qing-qing,HUANG Xin-yu,&SHI Lei.(2016).纺织印染企业水足迹测算案例..
MLA	孙清清,et al."纺织印染企业水足迹测算案例".(2016).

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