| 水耕植物过滤法净水系统底泥硝化反硝化潜力 |
| 摘要点击 2649 全文点击 2277 投稿时间：2004-04-12 修订日期：2004-09-17 |
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| 中文关键词 水耕植物过滤法 底泥 硝化潜力 反硝化潜力 |
| 英文关键词 hydroponic bio-filter method (HBFM) sediment nitrification potential denitrification potential |
| DOI 10.13227/j.hjkx.20050219 |
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| 中文摘要 |
| 通过测定水耕植物过滤法(Hydroponic Bio-filter Method,HBFM)水质净化系统中底泥的硝化、反硝化潜力以及底泥中亚硝酸菌和硝酸菌密度,定量研究了该系统底泥的硝化及反硝化潜力沿水流方向的变化规律.结果表明,中游底泥硝化潜力最大,为4.76×10-6 g/(g·h);上游底泥反硝化潜力最大,为8.1×10-7 g/(g·h);底泥中亚硝酸菌的密度分布与硝化潜力的分布一致.结果还表明,提高HBFM系统氮去除能力的关键在于改变硝化反硝化区域分布,从而提高系统的反硝化能力.
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| 英文摘要 |
| The potential of nitrification and denitrification of sediment and the density of ammonium-oxidizing bacteria and nitrite-oxidizing bacteria in sediment in water quality purifying system with hydroponic bio-filter method (HBFM) were measured. The variation of nitrification and denitrification potential of the sediment along the stream way was quantitatively studied. The results show that among the sediments from front, middle and retral part of the stream way, the sediment from middle part reached a maximum nitrification potential of 4.76×10-6 g/(g·h), while the sediment from front part reached a maximum denitrification potential of 8.1×10-7 g/(g·h). The distribution of nitrification potential accords with the ammonium-oxidizing bacteria density. The key for improving nitrogen removal efficiency of HBFM system consists in changing nitrification & denitrification region distributing and accordingly enhances denitrification process. |
