| 不同供氧方式对水库底泥氮磷释放的影响 |
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| 引用本文： | 袁文权,张锡辉,张丽萍.不同供氧方式对水库底泥氮磷释放的影响[J].湖泊科学,2004,16(1):29-35. |
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| 作者姓名： | 袁文权 张锡辉 张丽萍 |
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| 作者单位： | 清华大学深圳研究生院环境工程与管理研究中心,深圳,518057 |
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| 基金项目： | 国家863计划“南方地区安全饮用水保障技术”(2002AA601120)，深圳市水务局资助项目“深圳市西沥水库内源污染调查与研究” |
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| 摘 要： | 采用实验室模拟试验,研究了三种供氧方式——曝气、投加过氧化氢和投加过氧化钙对水库底泥氮磷释放的影响.研究结果表明:(1)溶解氧是控制底泥氮磷释放的重要因素,厌氧条件能加速底泥释放磷和氨氮;(2)曝气、投加过氧化氢和投加过氧化钙均能显著提高底部水体的溶氧水平,并能有效抑制底泥氮磷的释放.三种供氧方式对底泥释磷的控制效率依次为:投加CaO2>曝气>投加H2O2;对氨氮释放的控制效率则为:曝气>投加CaO2>投加H2O2.
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| 关 键 词： | 底泥 氮磷释放 厌氧 充氧 |
| 收稿时间： | 2003/6/29 0:00:00 |
| 修稿时间： | 2003年6月29日 |
Effects of Different Oxygenation Treatments on the Release of Nitrogen and Phosphorus from Reservoir Sediments |
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| YUAN Wenquan,ZHANG Xihui and ZHANG Liping.Effects of Different Oxygenation Treatments on the Release of Nitrogen and Phosphorus from Reservoir Sediments[J].Journal of Lake Science,2004,16(1):29-35. |
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| Authors: | YUAN Wenquan ZHANG Xihui and ZHANG Liping |
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| Institution: | Research Center for Environmental Engineering. Management, Shenzhen Graduate School, Tsinghua University, Shenzhen 518057, P.R.China,Research Center for Environmental Engineering. Management, Shenzhen Graduate School, Tsinghua University, Shenzhen 518057, P.R.China and Research Center for Environmental Engineering. Management, Shenzhen Graduate School, Tsinghua University, Shenzhen 518057, P.R.China |
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| Abstract: | This paper investigated effects of three oxygenation methods-aeration,hydrogen peroxide doses and calcium peroxide doses-on the release of N and P from reservoir sediments under simulated conditions.The results showed that:(1)Dissolved oxygen is the main parameter con-trolling the release of N and P;anaerobic condition can stimulate the release of NH4 and P from reservoir sediments.(2)Aeration,H 2 O 2 doses and CaO 2 doses can generally enhance the DO levels in the hypolimnetic water body.Both N and P release from sediments were inhibited under these three treatments.In laboratory studies involving three different oxygenation meth-ods,the efficiency of the control of phosphorus release was in the order of CaO 2 doses>aera-tion>H 2 O 2 doses,while the efficiency of the control of ammonia was in the order of aeration>CaO 2 doses>H 2 O 2 doses. |
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| Keywords: | Sediment nitrogen and phosphorus release anaerobic oxygenation |
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