The Evaluation of Groundwater Resources Value of Beijing Based on Emergy Theory

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td align="left" rowspan="2">Item</td><td align="center" colspan="2">Tap water</td><td align="center" rowspan="2">Recycled water</td></tr><tr class="thead"><td align="center">From surface water</td><td align="center">From groundwater</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td align="left">Emergy per volume (sej/m<sup>3</sup>)</td><td align="center"><span style="width: 58.2533ptpx;"><svg height="9.36053pt" id="M24" style="vertical-align:-0.3625803pt" version="1.1" viewbox="-0.0498162 -8.99795 58.2533 9.36053" width="58.2533pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.0135,0,0,-0.0135,0,0)"><path d="M285 378C315 398 338 416 353 432C373 451 384 474 384 503C384 579 325 635 236 635H235C182 635 136 610 108 579L65 516L85 496C110 533 150 575 205 575C258 575 300 543 300 481C300 407 232 369 141 339L147 310C163 315 188 321 211 321C268 321 338 284 338 192C338 94 288 40 217 40C160 40 119 68 93 91C85 98 77 97 69 91C60 84 47 71 46 58C44 46 48 35 62 22C75 10 116 -12 162 -12C234 -12 424 62 424 224C424 297 373 359 285 376V378Z" id="g113-52"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="480" vert-adv-y="480"></glyph.data></g><g transform="matrix(.0135,0,0,-0.0135,6.503,0)"><path d="M113 -12C146 -12 170 11 170 46C170 78 146 103 114 103S58 78 58 46C58 11 82 -12 113 -12Z" id="g113-47"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="228" vert-adv-y="228"></glyph.data></g><g transform="matrix(.0135,0,0,-0.0135,9.592,0)"><path d="M384 0V27C293 34 287 42 287 114V635C232 613 172 594 109 583V559L157 557C201 555 205 550 205 499V114C205 42 199 34 109 27V0H384Z" id="g113-50"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="480" vert-adv-y="480"></glyph.data></g><g transform="matrix(.0135,0,0,-0.0135,16.096,0)"><path d="M285 378C315 398 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Engineering water, tap water, and recycled water emergy per volume.

Advances in Materials Science and Engineering

tab3

Table 3

Table 3: The Evaluation of Groundwater Resources Value of Beijing Based on Emergy Theory 