摘要
分析了中水回用于钢铁企业水循环系统的可行性,通过综合分析钢铁企业用水评价指标后建立了针对于采用中水回用的钢铁企业水循环系统评价指标,采用建立的评价指标定量分析了国内某钢铁企业焦化工序采用中水回用的节水效果.研究结果表明,当钢铁企业引入中水回用技术时,采用浓缩倍数和水循环率等传统指标来评价水循环系统存在着一定的局限性,而采用水资源效率来评价中水回用的节水效果更加合理有效;对于该钢铁企业而言,当回用比为0.5时,水资源效率提高20,工业新水减少0.752m3/t焦,每年节约新水534万t.
The feasibility of gray water recycling system in iron and steel works and relevant evaluation indices were analyzed comprehensively.Then the evaluation indices of the system were given to evaluate the water-saving effects in the coking procedure of a certain iron and steel works quantitatively.The results showed that the water resource utilization efficiency as an index to evaluate the gray water recycling system is more reasonable and effective than those conventional indices as concentration multiple and recycling rate which are restrictive.For iron and steel works,the water resource utilization efficiency will increase 20,the quantity of industrial fresh water is decreased by 0.752 m3 per ton of coke and the annual quantity of industrial fresh water saved comes up to 5.34 million tons if the water reuse ratio is 0.5.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2010年第12期1741-1744,1760,共5页
Journal of Northeastern University(Natural Science)
基金
国家水体污染控制与治理科技重大专项(2008ZX07208-002-002)
关键词
中水
循环水
浓缩倍数
水循环率
水资源效率
gray water
circulating water
concentration multiple
water recycling rate
water resource utilization efficiency
