消费(社会学)
生产(经济)
用水量
强度(物理)
连铸
废水
材料科学
环境科学
冶金
环境工程
社会科学
物理
量子力学
社会学
经济
宏观经济学
作者
An Long Li,Zhi Hong Wang,Bo Sun,Si Wen Gao
出处
期刊:Materials Science Forum
日期:2020-05-01
卷期号:993: 1465-1472
被引量:2
标识
DOI:10.4028/www.scientific.net/msf.993.1465
摘要
The water consumption intensity of steel production through BF-BOF technology was decomposed by an innovative process-based water-accounting model, i.e., water-balance model. One ton of steel product was chosen to be the functional unit. The system boundary of the case study included the production processes of coking, sintering, iron making, steel making, continuous casting and rolling. The results showed that the water consumption intensity of steel production was 3.969t/t in this case. The water consumption of evaporation, solidification and wastewater were 2.373t, 0.013t and 1.583t, accounting for 59.79%, 0.33% and 39.88% of the total water consumption, respectively. Steel rolling is the largest contributor to water consumption, and the amount of water consumption is 1.523t, accounting for 38.37% of the total water consumption; followed by coking process and continuous casting process, the amounts of which are 0.814t (20.50%) and 0.634t (15.97%), respectively. This finding can push the utilization of advanced technologies to save water resource in steel industry.
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