Nitrogen and Phosphorus Removal from Secondary Treated Swine Wastewater by Two-stage Treatment Process using Granulated S<sup>0</sup>-CaCO<sub>3</sub> Medium and Granulated Autoclaved-light-weight-concrete Medium.
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- TANAKA YASUO
- National Institute of Livestock and Grassland Science
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- TESHIMA NOBUTAKA
- Fukuoka Agricultural Research Center
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- SHINOZAKI HIDEAKI
- Gunritsu Kiki Co., Ltd.
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- YATAGAI ATUSHI
- CLION Co., Ltd.
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- YOKOYAMA HIROSHI
- National Institute of Livestock and Grassland Science
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- OGINO AKIFUMI
- National Institute of Livestock and Grassland Science
Bibliographic Information
- Other Title
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- 硫黄・炭酸カルシウム含有粒状資材と軽量発泡コンクリート粒状資材を使用した2段式処理による豚舎排水の脱窒・リン低減
- イオウ タンサン カルシウム ガンユウ リュウジョウ シザイ ト ケイリョウ ハッポウ コンクリート リュウジョウ シザイ オ シヨウ シタ 2ダンシキ ショリ ニ ヨル トンシャ ハイスイ ノ ダッチツ リン テイゲン
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Abstract
In order to remove nitrogen and phosphorus contained in secondary treated swine wastewater, performance of two steps fixed bed reactor process was examined, which consisted of autotrophic denitrification reactor filled with S0-CaCO3-medium (3-5 mm in diameter) and a phosphate absorption reactor filled with autoclaved-light-weight-concrete (ALC)-medium (5-8 mm in diameter). The former medium had coating layer of sulfur-CaCO3 mixture around perlite particle nuclei. The latter medium was byproduct of autoclaved light weight concrete production. Removal rate of NOx--N by the denitrification reactor increased rapidly during initial about 5 days, and maintained over 95% removal rate until about 30 days with NOx--N loading rate of about 1.5 kg/nominal m3・day and nominal HRT of about 9 hours. Consumption of sulfur in the medium was estimated about 2.0 kg for 1 kg nitrogen removal. Phosphate removal rate by ALC medium increased to about 86% during initial 5 days, and this high removal activity continued until about 50 days with nominal HRT of about 9 hours. The phosphate absorbing activity of used ALC medium was recovered by washing in tap water for 5 minutes with stirring. The phosphate removal reactor had also neutralization effect of acidified effluent from denitrification reactor. Both the denitrification reactor and the phosphate removal reactor had some activity of reducing true color of wastewater. Total reduction rate of true color by the two processes was about 30~40%. These results suggest that simple and stable water quality improvement of secondary treated swine wastewater would be possible by combining the two processes.
Journal
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- Japanese Journal of Water Treatment Biology
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Japanese Journal of Water Treatment Biology 45 (4), 165-175, 2009
Japanese Society of Water Treatment Biology
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Details 詳細情報について
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- CRID
- 1390282679940190080
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- NII Article ID
- 10026415913
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- NII Book ID
- AN00351126
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- ISSN
- 18810438
- 09106758
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- NDL BIB ID
- 10530142
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed