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- W2375761937 abstract "A bio-sand-filter column was setup in laboratory to simulate bio-sand-filter system.Under the atomization and droplets mode of influent distribution,the ammonium nitrogen removal efficiency from digested effluent of swine wastewater by bio-sand-filter column was investigated.The results showed,when the influent loading was 0.057 m3·m-2d-1 and the average influent ammonium nitrogen concentrations were 293.2 mg·L-1,513.6 mg·L-1,553.4 mg·L-1,respectively,the average removal rates of ammonium nitrogen by the atomization mode were 98.8%,87.4%,75.1%,respectively,and the average effluent ammonium nitrogen concentrations were 3.61 mg·L-1,64.7 mg·L-1,137.8 mg·L-1,respectively;the average removal loading rates were 16.4 g·m-2d-1,25.4 g·m-2d-1,23.5g·m-2d-1,respectively.By comparison,the average removal rates of ammonium nitrogen by the droplets mode were 77.4%,71.4%,59.3%, respectively;the average effluent ammonium nitrogen concentrations were 66.3 mg·L-1,146.9 mg·L-1,225.1 mg·L-1,respectively;and the average removal loading rates were 12.9 g·m-2d-1, 20.7 g·m-2d-1,18.6g·m-2d-1,respectively.The bio-sand-column with atomization mode can not only improve the ammonium nitrogen removal efficiency and removal loading rate,but also reduce the effluent ammonium nitrogen concentration.When ammonium nitrogen concentrations were 293.2 mg·L-1 for the droplets mode and 293.2 mg·L-1 and 512.6 mg·L-1 for the atomization mode,the effluent ammonium nitrogen concentration could meet the standard for ammonium nitrogen discharging required by Discharge standard of pollutants for livestock and poultry breeding(GB 18596-2001).Compared with constructed wetlands and lagoon wastewater treatment system,bio-sand-filter largely enhanced ammonium nitrogen removal loading rate." @default.
- W2375761937 created "2016-06-24" @default.
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- W2375761937 date "2011-01-01" @default.
- W2375761937 modified "2023-09-24" @default.
- W2375761937 title "Effects of Two Different Influent Distribution Modes on Ammonium Nitrogen Removal from Anaerobically Digested Swine Wastewater Using Bio-sand-filter" @default.
- W2375761937 hasPublicationYear "2011" @default.
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