Field Filtering Versus Slow Pumping Study


60


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          100
  Time (min)


        100
Time (min)


120


140


140


180


180


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           40                    80                   120                  160
20                    6O                   100                  140                   180
                                   Time (min)


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        10i
Time (min)


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  Time (min)


12.1 gin


140


180


ceo:wsb2r.wql


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3: 7.90-
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20


40


5


20


60


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140


180


20


40


60


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