Nutrient removal in the river basin of the Ruhr : a German case study
In the catchment area of the Ruhr, restructuring and upgrading measures in the domain of wastewater and stormwater treatment have been under way since 1990 to successively implement the currently applicable legal requirements for nutrient removal. With 2.1 million inhabitants and a design capacity o...
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| Veröffentlicht in: | Water science and technology 2001-01, Vol.44 (1), p.15-24 |
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| description | In the catchment area of the Ruhr, restructuring and upgrading measures in the domain of wastewater and stormwater treatment have been under way since 1990 to successively implement the currently applicable legal requirements for nutrient removal. With 2.1 million inhabitants and a design capacity of 3.7 million population equivalents (PE), it is expected that approximately DM 2 billion still have to be invested from 2000 onward. With this it will be possible to further cut the nutrient load in the Ruhr River, that has been declining consistently since the 1970s: by about 25% for Ntotal and about 10% for Ptotal. The anticipated decrease in ammonia-nitrogen in winter is particularly important for drinking water production from the river water (bank filtration). Whether and to what an extent the expected decline in phosphorus concentrations will curb eutrophication in the Ruhr with its several impounded stretches remains to be seen. Further nutrient load reductions cannot be achieved by sewage treatment-related measures. Load balances underline the adverse impact of diffuse or non-point sources, in particular, for nitrogen. Some potential to further improve the situation is seen in minimizing the nutrient releases from agricultural practices. |
| doi_str_mv | 10.2166/wst.2001.0004 |
| format | Article |
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With 2.1 million inhabitants and a design capacity of 3.7 million population equivalents (PE), it is expected that approximately DM 2 billion still have to be invested from 2000 onward. With this it will be possible to further cut the nutrient load in the Ruhr River, that has been declining consistently since the 1970s: by about 25% for Ntotal and about 10% for Ptotal. The anticipated decrease in ammonia-nitrogen in winter is particularly important for drinking water production from the river water (bank filtration). Whether and to what an extent the expected decline in phosphorus concentrations will curb eutrophication in the Ruhr with its several impounded stretches remains to be seen. Further nutrient load reductions cannot be achieved by sewage treatment-related measures. Load balances underline the adverse impact of diffuse or non-point sources, in particular, for nitrogen. 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Geothermics ; Eutrophication ; Exact sciences and technology ; Freshwater ; General purification processes ; Germany, Ruhr R ; Inhabitants ; Models, Theoretical ; Natural water pollution ; Nitrogen ; Nitrogen - analysis ; Nitrogen - chemistry ; Nutrient loading ; Nutrient removal ; Nutrient requirements ; Phosphorus - analysis ; Phosphorus - chemistry ; Point sources ; Pollution ; Pollution, environment geology ; River basins ; Rivers ; Seasons ; Sewage ; Sewage treatment ; Stormwater ; Wastewater treatment ; Wastewaters ; Water Movements ; Water Pollution - prevention & control ; Water purification ; Water Supply ; Water treatment and pollution</subject><ispartof>Water science and technology, 2001-01, Vol.44 (1), p.15-24</ispartof><rights>2001 INIST-CNRS</rights><rights>Copyright IWA Publishing Jul 2001</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c408t-fd05b7d0499fecbb75a967e6c4d53b05b821dfb5576615d60657f4e6fc078e23</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>309,310,314,776,780,785,786,23909,23910,25118,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1018996$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11496666$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>van der Vlies, A (eds)</contributor><contributor>van Loosdrecht, M</contributor><creatorcontrib>BODE, H</creatorcontrib><creatorcontrib>KLOPP, R</creatorcontrib><title>Nutrient removal in the river basin of the Ruhr : a German case study</title><title>Water science and technology</title><addtitle>Water Sci Technol</addtitle><description>In the catchment area of the Ruhr, restructuring and upgrading measures in the domain of wastewater and stormwater treatment have been under way since 1990 to successively implement the currently applicable legal requirements for nutrient removal. With 2.1 million inhabitants and a design capacity of 3.7 million population equivalents (PE), it is expected that approximately DM 2 billion still have to be invested from 2000 onward. With this it will be possible to further cut the nutrient load in the Ruhr River, that has been declining consistently since the 1970s: by about 25% for Ntotal and about 10% for Ptotal. The anticipated decrease in ammonia-nitrogen in winter is particularly important for drinking water production from the river water (bank filtration). Whether and to what an extent the expected decline in phosphorus concentrations will curb eutrophication in the Ruhr with its several impounded stretches remains to be seen. Further nutrient load reductions cannot be achieved by sewage treatment-related measures. Load balances underline the adverse impact of diffuse or non-point sources, in particular, for nitrogen. Some potential to further improve the situation is seen in minimizing the nutrient releases from agricultural practices.</description><subject>Agricultural practices</subject><subject>Agriculture</subject><subject>Ammonia</subject><subject>Applied sciences</subject><subject>Catchment areas</subject><subject>Continental surface waters</subject><subject>Drinking water</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Engineering and environment geology. 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successively implement the currently applicable legal requirements for nutrient removal. With 2.1 million inhabitants and a design capacity of 3.7 million population equivalents (PE), it is expected that approximately DM 2 billion still have to be invested from 2000 onward. With this it will be possible to further cut the nutrient load in the Ruhr River, that has been declining consistently since the 1970s: by about 25% for Ntotal and about 10% for Ptotal. The anticipated decrease in ammonia-nitrogen in winter is particularly important for drinking water production from the river water (bank filtration). Whether and to what an extent the expected decline in phosphorus concentrations will curb eutrophication in the Ruhr with its several impounded stretches remains to be seen. Further nutrient load reductions cannot be achieved by sewage treatment-related measures. Load balances underline the adverse impact of diffuse or non-point sources, in particular, for nitrogen. Some potential to further improve the situation is seen in minimizing the nutrient releases from agricultural practices.</abstract><cop>London</cop><pub>IWA</pub><pmid>11496666</pmid><doi>10.2166/wst.2001.0004</doi><tpages>10</tpages></addata></record> |
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| ispartof | Water science and technology, 2001-01, Vol.44 (1), p.15-24 |
| issn | 0273-1223 1996-9732 |
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| source | MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Agricultural practices Agriculture Ammonia Applied sciences Catchment areas Continental surface waters Drinking water Earth sciences Earth, ocean, space Engineering and environment geology. Geothermics Eutrophication Exact sciences and technology Freshwater General purification processes Germany, Ruhr R Inhabitants Models, Theoretical Natural water pollution Nitrogen Nitrogen - analysis Nitrogen - chemistry Nutrient loading Nutrient removal Nutrient requirements Phosphorus - analysis Phosphorus - chemistry Point sources Pollution Pollution, environment geology River basins Rivers Seasons Sewage Sewage treatment Stormwater Wastewater treatment Wastewaters Water Movements Water Pollution - prevention & control Water purification Water Supply Water treatment and pollution |
| title | Nutrient removal in the river basin of the Ruhr : a German case study |
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