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Two sets of small scale systems of staged, vertical-flow constructed wetlands (VFCW) were operated in a greenhouse to study the purification of dibutyl phthalate (DBP) in admeasured water. Each system consisted of two chambers in which water flowed downward in chamber 1 and then upward in chamber 2. The systems were intermittently fed with wastewater under a hydraulic load of 420 mm·d−1. The measured...
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