Forecasting of Wastewater Discharge and the Energy Consumption in China Based on Grey Model

<table class="fixed-width table-group" id="tab6"><tr><td><table class="table"><colgroup><col style="width:15.42em"/><col style="width:3.43em"/><col style="width:3.42em"/><col style="width:3.39em"/><col style="width:3.33em"/></colgroup><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Year</td><td class="align_center">2012</td><td class="align_center">2013</td><td class="align_center">2014</td><td class="align_center">2015</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Wastewater discharge (billion tons)</td><td class="align_center">68.43</td><td class="align_center">69.49</td><td class="align_center">71.56</td><td class="align_center">73.53</td></tr><tr><td class="align_left">Treated wastewater (billion tons)</td><td class="align_center">41.62</td><td class="align_center">45.61</td><td class="align_center">49.43</td><td class="align_center">53.23</td></tr><tr><td class="align_left">Energy consumption (billion kWh)</td><td class="align_center">12.18</td><td class="align_center">13.35</td><td class="align_center">14.47</td><td class="align_center">15.58</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The wastewater discharge and energy consumption in China (2012 to 2015).</div>

Mathematical Problems in Engineering

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Table 6

Table 6: Forecasting of Wastewater Discharge and the Energy Consumption in China Based on Grey Model 