Factors Influencing Nitrogen Removal in a Decentralized Sewage Treatment Reactor
A decentralized sewage treatment reactor was designed to treat wastewater in rural areas. To examine the factors influencing nitrogen removal, experiments were carried out at three levels of hydraulic surface load, three sludge concentrations, and three environment temperatures at low dissolved oxyg...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2013/296312 |
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| author | Dong-Sheng Shen Bao-Cheng Huang Pei-Qing Liu Jian-Xun Han Hua-Jun Feng |
| author_facet | Dong-Sheng Shen Bao-Cheng Huang Pei-Qing Liu Jian-Xun Han Hua-Jun Feng |
| author_sort | Dong-Sheng Shen |
| collection | DOAJ |
| description | A decentralized sewage treatment reactor was designed to treat wastewater in rural areas. To examine the factors influencing nitrogen removal, experiments were carried out at three levels of hydraulic surface load, three sludge concentrations, and three environment temperatures at low dissolved oxygen concentrations. The rate of denitrification decreased, and the rate of nitrification increased as the surface load rose. The maximum denitrification rate was 20.01 ± 3.02 g/(m3·d) at a surface load of 1.11 ± 0.13 m3/(m2·h). The total nitrogen (TN) removal, efficiency initially increased and then decreased as the sludge concentration rose. When the sludge concentration increased to 3.5 ± 0.3 g/L, the system showed a good level of TN removal and a denitrification rate of 28.58 ± 1.22 g/(m3·d) was achieved. Low temperature had a negative effect on the removal and transformation of nitrogenous pollutants. |
| format | Article |
| id | doaj-art-65dad87e5bfb4394be2128d133166dc2 |
| institution | OA Journals |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-65dad87e5bfb4394be2128d133166dc22025-08-20T02:23:48ZengWileyJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/296312296312Factors Influencing Nitrogen Removal in a Decentralized Sewage Treatment ReactorDong-Sheng Shen0Bao-Cheng Huang1Pei-Qing Liu2Jian-Xun Han3Hua-Jun Feng4College of Environmental Science and Engineering, Zhejiang Gongshang University, Zhejiang, Hangzhou 310018, ChinaCollege of Environmental Science and Engineering, Zhejiang Gongshang University, Zhejiang, Hangzhou 310018, ChinaChina SINOMACH Heavy Industry Corporation, Beijing 100102, ChinaJuhua Group Corporation, Zhejiang, Quzhou 324004, ChinaCollege of Environmental Science and Engineering, Zhejiang Gongshang University, Zhejiang, Hangzhou 310018, ChinaA decentralized sewage treatment reactor was designed to treat wastewater in rural areas. To examine the factors influencing nitrogen removal, experiments were carried out at three levels of hydraulic surface load, three sludge concentrations, and three environment temperatures at low dissolved oxygen concentrations. The rate of denitrification decreased, and the rate of nitrification increased as the surface load rose. The maximum denitrification rate was 20.01 ± 3.02 g/(m3·d) at a surface load of 1.11 ± 0.13 m3/(m2·h). The total nitrogen (TN) removal, efficiency initially increased and then decreased as the sludge concentration rose. When the sludge concentration increased to 3.5 ± 0.3 g/L, the system showed a good level of TN removal and a denitrification rate of 28.58 ± 1.22 g/(m3·d) was achieved. Low temperature had a negative effect on the removal and transformation of nitrogenous pollutants.http://dx.doi.org/10.1155/2013/296312 |
| spellingShingle | Dong-Sheng Shen Bao-Cheng Huang Pei-Qing Liu Jian-Xun Han Hua-Jun Feng Factors Influencing Nitrogen Removal in a Decentralized Sewage Treatment Reactor Journal of Chemistry |
| title | Factors Influencing Nitrogen Removal in a Decentralized Sewage Treatment Reactor |
| title_full | Factors Influencing Nitrogen Removal in a Decentralized Sewage Treatment Reactor |
| title_fullStr | Factors Influencing Nitrogen Removal in a Decentralized Sewage Treatment Reactor |
| title_full_unstemmed | Factors Influencing Nitrogen Removal in a Decentralized Sewage Treatment Reactor |
| title_short | Factors Influencing Nitrogen Removal in a Decentralized Sewage Treatment Reactor |
| title_sort | factors influencing nitrogen removal in a decentralized sewage treatment reactor |
| url | http://dx.doi.org/10.1155/2013/296312 |
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