Waste Water In Canada Essay

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2187 essay edition version #2 Canada waste-water treatment and Chinese waste-water system development Key sentence :Analyzing modern waste-water treatment system in Canada to get the answer of environmental development advises and Economy feasible solution for china. Canada has an area of over 9.98 million square kilometers, which is currently being ranked as the second in the world.Within this massive land, 909.3507 million square kilometers are developed into land-use area; and 89.1163 ten thousand square kilometers are covered with fresh water, which accounted for 15% of the world’s total freshwater. Canada has plenty of famous great lakes and there are four main hydro-graphic nets like Mackenzie River,Yukon …show more content…

China is one of 13 water shortage countries around the world, it’s per capita water is only a quarter of the world's average rate, ranking NO.110 among all 149 countries around the world. Currently, among more than 670 cities, there are 500 cities has the water scarcity problem, in which about 130 cities are seriously lack of water. Overall cities have 6 billion square meters per year shortage of water , in which the daily water volume is more than 16.05 million square meters, and increasing all the time. In fact, not all the cities have no water, they need water that clean and drinkable. According to the National Water Resources research about the annual emission of polluted and waste water around the six major river basins, the survey estimated that the current national annual emissions of sewage now reached 56.66 trillion square meters high, of which more than 80% of untreated sewage are directly into the waters, more than 90% of urban water are seriously polluted . All 40% of cities’ undrinkable are drinkable water being polluted , for the rive flowing through the city, in which 78% is not suitable for the drinking Source and 52% of the drinkable under-groundwater is contaminated, over 70% of people in China are using substandard tap water. Therefore, the majority reason of urban water shortage is the water pollution which means the inefficient waste-water treatment

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