Rain events and their effect on effluent quality studied at a full scale activated sludge treatment plant
The effect of rain events on effluent quality dynamics was studied at a full scale activated sludge wastewater treatment plant which has a process solution incorporating pre-denitrification in activated sludge with post-nitrification in trickling filters. The incoming wastewater flow varies signific...
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| Veröffentlicht in: | Water science and technology 2006-01, Vol.54 (10), p.201-208 |
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| creator | Wilén, B M Lumley, D Mattsson, A Mino, T |
| description | The effect of rain events on effluent quality dynamics was studied at a full scale activated sludge wastewater treatment plant which has a process solution incorporating pre-denitrification in activated sludge with post-nitrification in trickling filters. The incoming wastewater flow varies significantly due to a combined sewer system. Changed flow conditions have an impact on the whole treatment process since the recirculation to the trickling filters is set by the hydraulic limitations of the secondary settlers. Apart from causing different hydraulic conditions in the plant, increased flow due to rain or snow-melting, changes the properties of the incoming wastewater which affects process performance and effluent quality, especially the particle removal efficiency. A comprehensive set of on-line and laboratory data were collected and analysed to assess the impact of rain events on the plant performance. |
| doi_str_mv | 10.2166/wst.2006.721 |
| format | Article |
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A comprehensive set of on-line and laboratory data were collected and analysed to assess the impact of rain events on the plant performance.</description><subject>Activated sludge</subject><subject>Atmospheric precipitations</subject><subject>Combined sewers</subject><subject>Data processing</subject><subject>Denitrification</subject><subject>Dynamics</subject><subject>Effluents</subject><subject>Filters</subject><subject>Fluid filters</subject><subject>Nitrification</subject><subject>Nitrogen - analysis</subject><subject>Nitrogen - isolation & purification</subject><subject>Rain</subject><subject>Removal</subject><subject>Settlers</subject><subject>Sewage</subject><subject>Sewer systems</subject><subject>Sludge</subject><subject>Sludge treatment</subject><subject>Snowmelt</subject><subject>Trickling filters</subject><subject>Waste Disposal, Fluid - methods</subject><subject>Wastewater</subject><subject>Wastewater treatment</subject><subject>Wastewater treatment plants</subject><subject>Water Purification - 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| fulltext | fulltext |
| identifier | ISSN: 0273-1223 |
| ispartof | Water science and technology, 2006-01, Vol.54 (10), p.201-208 |
| issn | 0273-1223 1996-9732 |
| language | eng |
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| source | MEDLINE; EZB-FREE-00999 freely available EZB journals |
| subjects | Activated sludge Atmospheric precipitations Combined sewers Data processing Denitrification Dynamics Effluents Filters Fluid filters Nitrification Nitrogen - analysis Nitrogen - isolation & purification Rain Removal Settlers Sewage Sewer systems Sludge Sludge treatment Snowmelt Trickling filters Waste Disposal, Fluid - methods Wastewater Wastewater treatment Wastewater treatment plants Water Purification - instrumentation Water Purification - methods Water treatment plants |
| title | Rain events and their effect on effluent quality studied at a full scale activated sludge treatment plant |
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