| 水体/底泥生物基城市河道富营养化水体修复试验研究 |
| 摘要点击 2452 全文点击 1923 投稿时间：2013-01-15 修订日期：2013-02-25 |
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| 中文关键词 水体生物基 底泥生物基 城市水体 富营养 生态修复 |
| 英文关键词 water biological base sediment biological base urban water eutrophication ecological restoration |
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| 中文摘要 |
| 针对城市水体富营养化现状,自主研发了水体生物基、底泥生物基和微动力涡轮水循环曝气系统. 水体生物基对水体中COD、NH4+-N和TP的去除效果,平均去除率分别为82.33%、98.00%和54.73%; 底泥生物基在投加5 d内可达到20%以上的底泥减量率,上覆水曝气可有效缓解由底泥有机质降解而引起的营养盐释放; 由水体/底泥生物基相结合并辅以微动力涡轮水循环曝气系统的组合技术,在中试试验中表现出较好的水体营养盐去除及底泥有机质降解效果,COD、NH4+-N、TP的去除率分别为52.0%、33.6%、23.4%,河道底泥中有机质成分由试验前的38.20%降至试验结束时的12.20%. |
| 英文摘要 |
| A micro power turbine water aeration system with a water biological base and a sediment biological base was independently developed, aimed at urban water eutrophication. The results showed that the average removal rates of COD, NH4+-N, TP by the water biological base were 82.33%, 98.00% and 54.73%, respectively; The sediment reduction rate achieved by the sediment biological base could reach 20% within 5 days, and aeration in the overlying water could relieve the nutrient releasing caused by the degradation of organic matter; The effect of nutrient removal and organic matter reduction in sediment by the combined ecological restoration technology was perfect in pilot scale. The average removal rates of COD, NH4+-N, TP were 52.0%, 33.6% and 23.4%, respectively, and the organic content in sediment was reduced from 38.20% to 12.20%. |
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