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- W32014611 endingPage "1590" @default.
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- W32014611 abstract "ABSTRACT Duckweed species are promising macrophytes for use in sustainable wastewater treatment due to their rapid growth, ease of harvest, and feed potential as a protein source. This paper reviews growth rates of different duckweed species on wastewater and ammonia toxicity to duckweed and summarizes insights into the mechanism of organic matter and nutrient removal. Results were gained from laboratory experiments in small, shallow, duckweed‐covered semicontinuous batch systems. Growth rates on different types of wastewater vary considerably among different species. Ammonia is toxic for duckweed in both the ionized and un‐ionized forms. Duckweed, however, can be used to treat wastewater containing very high total ammonia concentrations as long as certain pH levels are not exceeded. The degradation of organic material is enhanced by duckweed through both additional oxygen supply and additional surface for bacterial growth. The duckweed mat with attached bacteria and algae is, independent of the loading rates, responsible for three‐quarters of the total nitrogen (N) and phosphorus (P) loss in very shallow systems. Based on our results we suggest that full‐scale pilot plants with duckweed should be shallower than the range encountered in the literature. A harvesting schedule that allows doubling times of 2 to 3.5 d, maintenance of a full coverage, and plug flow conditions are recommended." @default.
- W32014611 created "2016-06-24" @default.
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- W32014611 date "2003-09-01" @default.
- W32014611 modified "2023-09-27" @default.
- W32014611 title "The Capacity of Duckweed to Treat Wastewater" @default.
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- W32014611 doi "https://doi.org/10.2134/jeq2003.1583" @default.
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