| 复合人工湿地系统强化处理单元的运行特性与效果 |
| 摘要点击 1533 全文点击 842 投稿时间：2012-03-29 修订日期：2012-09-03 |
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| 中文关键词 复合人工湿地 水解酸化池 自然复氧 强化处理单元 运行特性 |
| 英文关键词 composite constructed wetland the pool of hydrolysis acidification natural reoxygenation the strengthening units operating performance |
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| 中文摘要 |
| 针对目前人工湿地运行中的水流分布不均、易堵塞、溶解氧不足导致 NH4+-N硝化不充分及除磷率低下等问题,研究了作为复合人工湿地系统组成要素的高负荷水解酸化池、自然复氧/沉淀一体化装置、强化除磷脱氮槽等强化处理单元的运行特性及对全系统处理效果的影响.结果表明,高负荷水解酸化池对 COD、SS有较强的去除作用,分别占系统总去除率的 38.05%和 34.82%; 一体化装置对SS的去除占系统总去除率的 22.01%,并使 DO提高到 2.5mg·L-1以上; 经两段强化除磷脱氮槽的强化处理, TP综合去除率提高 8%以上,并使湿地出水各类污染物全面达到 GB 18918-2002一级 A标准. |
| 英文摘要 |
| There are some defects in constructed wetland, including the uneven distribution of flow, easily blocked, lack of oxygen supply systems and the unsatisfactory phosphorus adsorption capacity of the substrates, etc. The research mainly studied the function and contribution of the pool of hydrolysis acidification, the natural reoxygenation/sinking device and strengthen slot for reducing nitrogen and phosphorus. The results showed the removal efficiency of COD and SS in hydrolysis-acidification pool accounted for 38.05% and 34.82% of the total removal efficiency of system. The SS removal efficiency of the natural reoxygenation/sinking device accounted for 22.01% of the total removal efficiency of system, and the concentration of DO kept above 2.5mg·L-1. The two strengthen slots can ensure the TP, TN, COD up to the standard of the level 1 of GB 18918-2002. |
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