Optimizations on supply and distribution of dissolved oxygen in constructed wetlands: A review.
- Publication Type:
- Journal Article
- Bioresource technology, 2016, 214 pp. 797 - 805
- Issue Date:
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|Accepted Manuscript Optimizations on supply and distribution of DO in constructed wetlands (BITE 16499).pdf||Accepted Manuscript Version||725.11 kB|
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Dissolved oxygen (DO) is one of the most important factors that can influence pollutants removal in constructed wetlands (CWs). However, problems of insufficient oxygen supply and inappropriate oxygen distribution commonly exist in traditional CWs. Detailed analyses of DO supply and distribution characteristics in different types of CWs were introduced. It can be concluded that atmospheric reaeration (AR) served as the promising point on oxygen intensification. The paper summarized possible optimizations of DO in CWs to improve its decontamination performance. Process (tidal flow, drop aeration, artificial aeration, hybrid systems) and parameter (plant, substrate and operating) optimizations are particularly discussed in detail. Since economic and technical defects are still being cited in current studies, future prospects of oxygen research in CWs terminate this review.
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