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Investigation and analysis of college's water system: the case of Northeastern University

机译：高校水系调查与分析-以东北大学为例

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摘要

To date there have been many studies of water system optimization which were focused on the water use performance of industrial, regional, and urban areas from a macro-perspective. However, water system optimization colleges and universities are rare, though the amount of water consumption is huge in higher education institutions. We applied a water extended input-output model to investigate and analyze the water system of Northeastern University. Results showed that the water consumption at Northeastern University is 106.72 m(3)/year per capita; 74.44% of the total water consumption at Northeastern University takes place in dormitories and other school buildings. In contrast with industrial and agricultural sewage, the pollutants in campus sewage are simple and are easy to render harmless or eliminate. Analyzed results showed that the rate of water recycling is low. In this paper, we present an optimization project for improving water efficiency at Northeastern University. Through measures such as dormitory toilets that reuse washroom sewage, our proposed plan will reduce water consumption per capita by 2.13 m(3)/year. If our proposed plan is adopted at other higher education institutions whose size is the same as Northeastern University all over the country, 7,842.77 x 10(5) m(3)/year of water will be saved, which is equivalent to 3.45 x 10(6) yuan.
机译：迄今为止，已有许多关于水系统优化的研究，这些研究从宏观角度着眼于工业，区域和城市地区的用水绩效。然而，尽管高等教育机构耗水量巨大，但大学的水系统优化并不多见。我们应用水扩展投入产出模型研究和分析了东北大学的水系统。结果表明，东北大学的人均用水量为106.72 m（3）/年。东北大学总用水量的74.44％用于宿舍和其他教学楼。与工农业污水相比，校园污水中的污染物很简单，无害或易于消除。分析结果表明，水的回收率很低。在本文中，我们提出了东北大学提高水效率的优化项目。通过诸如重复使用洗手间污水的宿舍厕所等措施，我们的拟议计划将使人均用水量减少2.13 m（3）/年。如果我们提议的计划在与全国东北大学相同规模的其他高等教育机构中采用，则每年将节水7,842.77 x 10（5）m（3）/年，相当于3.45 x 10（ 6）元。

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