Soil clogging in vertical flow reed beds - mechanisms, parameters, consequences and solutions?
The purification efficiency of vertical flow reed beds is dependent on efficient soil aeration. This is typically achieved in most systems by intermittent pulse loading at the surface to provide oxygenation by mass flow and diffusion. The oxygen transportation mechanism only functions when the upper...
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| Published in | Water science and technology Vol. 35; no. 5; pp. 175 - 181 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
01.01.1997
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| Online Access | Get full text |
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| Summary: | The purification efficiency of vertical flow reed beds is dependent on efficient soil aeration. This is typically achieved in most systems by intermittent pulse loading at the surface to provide oxygenation by mass flow and diffusion. The oxygen transportation mechanism only functions when the upper layers of the bed have a high drainage capacity. Purification efficiency drops significantly when constant ponding occurs. The clogging of sand filters is reviewed. Clogging occurs in the upper 15 cm of the bed and is dependent on the height of organic mass loading. The infiltration rate can be restored by allowing the beds a recovery period of several weeks. |
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| Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 0273-1223 |
| DOI: | 10.2166/wst.1997.0191 |