| 木质框架土壤渗滤系统处理养猪废水厌氧消化液的效能 |
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| 引用本文： | 赵博玮,李建政,邓凯文,孟佳.木质框架土壤渗滤系统处理养猪废水厌氧消化液的效能[J].化工学报,2015,66(6):2248-2255. |
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| 作者姓名： | 赵博玮 李建政 邓凯文 孟佳 |
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| 作者单位： | 哈尔滨工业大学城市水资源与水环境国家重点实验室, 黑龙江 哈尔滨 150090 |
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| 基金项目： | 黑龙江省应用技术研究与开发计划项目(GC13C303)；国家水体污染控制与论理科技重大专项(2013ZX07201007)。@@@@supported by the Science and Technology Department of Heilongjiang Province，the Major Science and Technology Program for Water Pollution Coutrol and Management |
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| 摘 要： | 为处理高氨氮、低C/N比的养猪废水厌氧消化液, 构建了具有缓释碳源特性的木质框架土壤渗滤系统(WFSI), 并通过运行测试了进水浓度和表面水力负荷(SHL)对系统处理效能的影响。在SHL为0.2 m3·m-2·d-1条件下, 当进水COD和NH4+-N平均浓度分别从152和175.5 mg·L-1提高到421和788.7 mg·L-1时, 系统对COD的去除率从52.3%提高到61.2%, NH4+-N去除率从84.2%下降到61.5%, TN去除率从28.6%提高到了33.5%, NH4+-N和TN去除负荷分别达到了75.5和41.7 g·m-3·d-1。当SHL提高为0.32 m3·m-2·d-1时, 系统仍能维持运行, 但处理效能受到显著影响。在进水COD 和NH4+-N分别为265和465 mg·L-1左右时, COD、NH4+-N及TN的去除率分别平均为56.5%、53.3%和20.9%。木质填料及其附着层形成的NH4+-N浓度梯度, 可使系统承受较高的SHL的同时获得缓释碳源, 并保护氨氧化细菌免受自由氨毒性。
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| 关 键 词： | 养猪废水 厌氧消化液 废物处理 填充床 渗透 脱氮 |
| 收稿时间： | 2015-01-22 |
| 修稿时间： | 2015-03-07 |
Efficiency of wood-chip-framework soil infiltration system in treating anaerobically digested swine wastewater |
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| ZHAO Bowei,LI Jianzheng,DENG Kaiwen,MENG Jia.Efficiency of wood-chip-framework soil infiltration system in treating anaerobically digested swine wastewater[J].Journal of Chemical Industry and Engineering(China),2015,66(6):2248-2255. |
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| Authors: | ZHAO Bowei LI Jianzheng DENG Kaiwen MENG Jia |
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| Affiliation: | State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, Heilongjiang, China |
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| Abstract: | A wood-chip-framework soil infiltrator (WFSI) with slow-release of carbon source was constructed and used to treat an anaerobically digested swine wastewater characterized with high NH4+-N and low C/N ratio. Pollutant removal efficiency of the WFSI was investigated under various influent concentration and varying surface hydraulic load (SHL). Under SHL of 0.2 m3·m-2·d-1, influent averaged COD and NH4+-N increased from 152 and 175.5 mg·L-1 to 421 and 788.7 mg·L-1, respectively. The resultant COD, NH4+-N and TN removal by the system was 52.3% to 61.2%, 84.2% to 61.5% and 28.6% to 33.5%, respectively. Meanwhile, NH4+-N and TN removal loading reached 75.5 and 41.7 g·m-3·d-1, respectively. Though SHL was as high as 0.32 m3·m-2·d-1, the system still performed but its efficiency was remarkably influenced. When influent COD and NH4+-N was around 265 and 465 mg·L-1, COD, NH4+-N and TN removal was about 56.5%, 53.3% and 20.9%, respectively. The wood carrier observably worked as a slow-release carbon source, and protected the ammonia oxidizing bacteria from free ammonia toxicity due to the concentration gradient of NH4+-N in the adhesive layers. |
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| Keywords: | swine wastewater anaerobically digested liquor waste treatment packed bed permeation nitrogen removal |
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