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The Present Water Consumption And Its Analysis Of Enterprises Above Designated Size In The City

Posted on:2017-04-04Degree:MasterType:Thesis
Country:ChinaCandidate:B S LeiFull Text:PDF
GTID:2272330488982422Subject:Applied Statistics
Abstract/Summary:PDF Full Text Request
Water is indispensable to the survival of human life resources. China is rather abundant in total resources volume, but poor in per-capital resources volume. As the industrialization and urbanization develop fast, the population is unceasingly increased. As the carrier of pollutants and emissions like industrial wastewater and sewage, there are many unreasonable phenomenon in the process of the water pollution and exploitation. If a large deal of sewage is not treated timely, it will affect the water quality, thus reducing water self-healing and purification capacity. While water use efficiency to a certain extent, also reflects the level of industrial production advanced in response to the National Standards Commission issued 357 GB-2025 strategy to promote the Made in China.In the background of the third national economic census, according to a city Bureau of Statistics in 2011 to 2013, this paper use the city’s above-scale enterprises sector sub-sectors of the total water table, sub-industry output table and industrial enterprises water consumption table of data to analyze the current situation of water. Firstly, based on water consumption (water consumption per year value) of the city’s above-scale enterprises industry, a trend analysis is done to divide the enterprises into five categories: annual water consumption-growth, increased and then decreased after the first type, type of reduction, first decreased by type and deletion. Also the trends for each class category value scale are analyzed. Secondly, Clustering is used to divide the annual water consumption values into five categories, while the value of the proportion of each class category is calculated. It follows that:the proportion of each class category in low consumption water is increasing year by year, while the proportion in high consumption water is declining. Then according to the attributes of enterprises, the current water consumption is analyzed based on the number of enterprises, annual output and water consumption. Finally, the water resource, the corresponding number of enterprises and water intake in three years are important for analyzing the water consumption.The above analysis provides further analysis of the city’s water use efficiency changes in technology support. Meanwhile, It wishes that it can get a reference for the relevant departments to make the relevant decisions and further detailed analysis. It will make a great significance of water use efficiency improvement.
Keywords/Search Tags:Above scale, consumption, trend analysis, Clustering
PDF Full Text Request
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