| | Ecological Engineering Group |
 | | The objective is to drain pretreated wastewater into an appropriately engineered gardens or forests of phreatophytes: plants known for fast growth and high water usage rates. |
 | | Phytoremediation takes advantage of plants' nutrient utilization processes to take in water and nutrients through roots, transpire water through leaves, and act as a transformation system to metabolize organic compounds, such as oil and pesticides. |
 | | When large plants such as willows, poplars and bamboo are used, the idea is to move as much water through them as possible so that they take up as much of the contaminants as possible. |
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