Batch versus continuous feeding strategies for pharmaceutical removal by subsurface flow constructed wetland.
作者： Richard M Gersberg , KBSN Jinadasa , Dong Qing Zhang , Junfei Zhu , Tao Hua
DOI: 10.1016/J.ENVPOL.2012.04.004
关键词:
摘要: This study evaluated the effect of continuous and batch feeding on removal 8 pharmaceuticals (carbamazepine, naproxen, diclofenac, ibuprofen, caffeine, salicylic acid, ketoprofen clofibric acid) from synthetic wastewater in mesocosm-scale constructed wetlands (CWs). Both loading modes were operated at hydraulic application rates 5.6 cm day−1 2.8 cm day−1. Except for carbamazepine, acid CWs was significantly (p < 0.05) enhanced under versus mode. For all compounds tested except values first-order decay constants (k) drain fill operation higher than that mode operation. Correlation between distribution coefficient (log Dow) efficiencies pharmaceutical CWs, showed efficiency (p < 0.1) inversely correlated with log Dow value, but not Kow value.
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