两级垂直流土地系统处理微污染水的实验研究
Experimental study on two vertical-flow land system for treatment of miro-polluted water
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摘要: 采用两级垂直流土地系统处理青岛市产芝水库微污染水体。系统内的生物陶粒填料比表面积大，易于微生物吸附，提高了微生物的种类和浓度；两级垂直流不仅增加了系统物理拦截和化学沉淀的能力，还减弱了水力冲击；植被的根际效应也提高了系统脱氮除磷的能力。研究表明，两级垂直流土地系统对CODMn、TN、TP和叶绿素-a的去除率较高，平均去除率分别为57.9%、62%、71.9%和70%。Abstract: The two vertical-flow land system was adopted to treat miro-polluted water of the Chanzhi Reservior in Qingdao. The bio-ceramic filler with specific surface area in the system was liable to microbial adsorption, enhancing the types and concentration of miro-organisms; the two vertical-flow system increased the physical capacity to intercept and chemical precipitation, and weakened the impact of the hydraulic loading. The rhizosphere of plants in the system enhanced the capacity of nitrogen and phosphorus removals.Result showed that the two vertical-flow land system had a good removal of CODMn、TN、TP and chl-a, the average removals were 57.9%、62%、71.9% and 70%,respectively.
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Key words:
- vertical-flow land system /
- carrier /
- miro-polluted water /
- treatment
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