Multi-stage hybrid subsurface flow constructed wetlands for treating piggery and dairy wastewater in cold climate
| Autor: | Hidehiro Ietsugu, Yasuhide Sugawara, Hayato Izumoto, Xiaomeng Zhang, Kunihiko Kato, Hiroaki Sakuragi, Da Wu, June Harada, Takashi Inoue |
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| Rok vydání: | 2016 |
| Předmět: |
Biochemical oxygen demand
Nitrogen Swine 0208 environmental biotechnology Wetland 02 engineering and technology Wastewater 010501 environmental sciences Poaceae Reed bed Waste Disposal Fluid 01 natural sciences Enterobacteriaceae Ammonium Compounds Animals Environmental Chemistry Water Pollutants Animal Husbandry Subsurface flow Waste Management and Disposal Nitrites 0105 earth and related environmental sciences Water Science and Technology Biological Oxygen Demand Analysis geography Suspended solids Nitrates geography.geographical_feature_category Chemical oxygen demand Environmental engineering Phosphorus General Medicine Cold Climate 020801 environmental engineering Dairying Wetlands Constructed wetland Environmental science |
| Zdroj: | Environmental Technology. 38:183-191 |
| ISSN: | 1479-487X 0959-3330 |
| DOI: | 10.1080/09593330.2016.1187206 |
| Popis: | This study followed three field-scale hybrid subsurface flow constructed wetland (CW) systems constructed in Hokkaido, northern Japan: piggery O (2009), dairy G (2011), and dairy S (2006). Treatment performance was monitored from the outset of operation for each CW. The ranges of overall purification efficiency for these systems were 70–86%, 40–85%, 71–90%, 91–96%, 94–98%, 84–97%, and 70–97% for total N (TN), NH4-N, total P, chemical oxygen demand (COD), biochemical oxygen demand, suspended solid, and total Coliform, respectively. The hybrid system’s removal rates were highest when influent loads were high. COD removal rates were 46.4 ± 49.2, 94.1 ± 36.6, and 25.1 ± 15.5 g COD m−2 d−1 in piggery O, dairy G, and dairy S, with average influent loads of 50.5 ± 51.5, 98.9 ± 37.1, and 26.9 ± 16.0 g COD m−2 d−1, respectively. The systems had overall COD removal efficiencies of around 90%. TN removal efficiencies were 62 ± 19%, 82 ± 9%, and 82 ± 15% in piggery O, dairy G, and dairy S, respectively. NH4-N... |
| Databáze: | OpenAIRE |
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