Treatment of piggery wastewater using multi-soil-layering system
A series of multi-soil-layering systems (MSL) in a lab scale was employed to study the efficiency and the mechanism of chemical oxygen demand (COD<sub>Cr</sub>) of organic matter, N and P removal in the wastewater generated from piggery at the hydraulic loading rates of 50, 100, 200, and...
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| Format: | Article |
| Language: | English |
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Zhejiang University Press
2012-05-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
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| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2012.03.015 |
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| author | ZHANG Chun-di ZHANG Shuai NIE Xin-jun LUO An-cheng YANG Fei ZHENG Zhong |
| author_facet | ZHANG Chun-di ZHANG Shuai NIE Xin-jun LUO An-cheng YANG Fei ZHENG Zhong |
| author_sort | ZHANG Chun-di |
| collection | DOAJ |
| description | A series of multi-soil-layering systems (MSL) in a lab scale was employed to study the efficiency and the mechanism of chemical oxygen demand (COD<sub>Cr</sub>) of organic matter, N and P removal in the wastewater generated from piggery at the hydraulic loading rates of 50, 100, 200, and 300 L·m<sup>-2</sup>·d<sup>-1</sup>. The results showed that the mean removal rates of organic matter were 74.8%, 72.6%, 59.5% and 33.4% under the four hydraulic loading rates, respectively, microbial decomposition process being the main mechanism of organic matter removal. The mean removal rates of ammonium nitrogen were 82.1%, 71.0%, 30.0%, and 18.9%, respectively, and the nitrification / denitrification process could remarkably account for total nitrogen removal. The mean removal rates of phosphorus were 61.4%, 56.0%, 39.1% and 23.0% under the four hydraulic loading rates, respectively, and phosphorus removal was own to its strong adsorption onto substrates. This experiment also showed that hydraulic loading rate was an important factor affecting piggery wastewater treatment efficiency, especially the removal of nitrogen, suggesting that an appropriate hydraulic loading rate was maintained to obtain an optimum efficiency of COD<sub>Cr</sub>, N and P removal. Results above indicate that an MSL system with little energy consumption could be practically adopted to treat piggery wastewater. |
| format | Article |
| id | doaj-art-c23d08f218414cbdab0182a5478eca5f |
| institution | Kabale University |
| issn | 1008-9209 2097-5155 |
| language | English |
| publishDate | 2012-05-01 |
| publisher | Zhejiang University Press |
| record_format | Article |
| series | 浙江大学学报. 农业与生命科学版 |
| spelling | doaj-art-c23d08f218414cbdab0182a5478eca5f2025-08-20T03:58:18ZengZhejiang University Press浙江大学学报. 农业与生命科学版1008-92092097-51552012-05-013833634610.3785/j.issn.1008-9209.2012.03.01510089209Treatment of piggery wastewater using multi-soil-layering systemZHANG Chun-diZHANG ShuaiNIE Xin-junLUO An-chengYANG FeiZHENG ZhongA series of multi-soil-layering systems (MSL) in a lab scale was employed to study the efficiency and the mechanism of chemical oxygen demand (COD<sub>Cr</sub>) of organic matter, N and P removal in the wastewater generated from piggery at the hydraulic loading rates of 50, 100, 200, and 300 L·m<sup>-2</sup>·d<sup>-1</sup>. The results showed that the mean removal rates of organic matter were 74.8%, 72.6%, 59.5% and 33.4% under the four hydraulic loading rates, respectively, microbial decomposition process being the main mechanism of organic matter removal. The mean removal rates of ammonium nitrogen were 82.1%, 71.0%, 30.0%, and 18.9%, respectively, and the nitrification / denitrification process could remarkably account for total nitrogen removal. The mean removal rates of phosphorus were 61.4%, 56.0%, 39.1% and 23.0% under the four hydraulic loading rates, respectively, and phosphorus removal was own to its strong adsorption onto substrates. This experiment also showed that hydraulic loading rate was an important factor affecting piggery wastewater treatment efficiency, especially the removal of nitrogen, suggesting that an appropriate hydraulic loading rate was maintained to obtain an optimum efficiency of COD<sub>Cr</sub>, N and P removal. Results above indicate that an MSL system with little energy consumption could be practically adopted to treat piggery wastewater.https://www.academax.com/doi/10.3785/j.issn.1008-9209.2012.03.015multi-soil-layering systempiggery wastewaterhydraulic loading rateorganic matter removalnitrogen removalphosphorus removal |
| spellingShingle | ZHANG Chun-di ZHANG Shuai NIE Xin-jun LUO An-cheng YANG Fei ZHENG Zhong Treatment of piggery wastewater using multi-soil-layering system 浙江大学学报. 农业与生命科学版 multi-soil-layering system piggery wastewater hydraulic loading rate organic matter removal nitrogen removal phosphorus removal |
| title | Treatment of piggery wastewater using multi-soil-layering system |
| title_full | Treatment of piggery wastewater using multi-soil-layering system |
| title_fullStr | Treatment of piggery wastewater using multi-soil-layering system |
| title_full_unstemmed | Treatment of piggery wastewater using multi-soil-layering system |
| title_short | Treatment of piggery wastewater using multi-soil-layering system |
| title_sort | treatment of piggery wastewater using multi soil layering system |
| topic | multi-soil-layering system piggery wastewater hydraulic loading rate organic matter removal nitrogen removal phosphorus removal |
| url | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2012.03.015 |
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