The effect of an anoxic zone on biological phosphorus removal by a sequential batch reactor
Nitrate can affect phosphate release and lead to reduced efficiency of biological phosphorus removal process. The inhibition effect of remaining nitrate at the anaerobic/anoxic phases was investigated in a lab scale sequencing batch reactor. In this study the influence of denitrification process on...
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| Veröffentlicht in: | Bioresource technology 2004-08, Vol.94 (1), p.1-7 |
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| creator | Akin, Beril S Ugurlu, Aysenur |
| description | Nitrate can affect phosphate release and lead to reduced efficiency of biological phosphorus removal process. The inhibition effect of remaining nitrate at the anaerobic/anoxic phases was investigated in a lab scale sequencing batch reactor. In this study the influence of denitrification process on reactor performance and phosphorus removal was examined. The experiments were carried out through simultaneous filling and decanting, mixing, mixing-aeration and settling modes. Glucose and acetate were used as carbon sources. The proposed treatment system was capable of removing approximately 80% of the influent PO
4-P, 98% NH
4-N and 97% COD at a SRT of 25 days. In the fill/decant phase, anoxic and anaerobic conditions prevailed and a large quantity of nitrate was removed in this stage. In the anoxic phase the remaining nitrate concentration was quickly reduced and a considerable amount of phosphate was released. This was attributed to the availability of acetate in this stage. For effective nitrogen and phosphate removal, a short anoxic phase was beneficial before an aerobic phase. |
| doi_str_mv | 10.1016/j.biortech.2003.11.022 |
| format | Article |
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4-P, 98% NH
4-N and 97% COD at a SRT of 25 days. In the fill/decant phase, anoxic and anaerobic conditions prevailed and a large quantity of nitrate was removed in this stage. In the anoxic phase the remaining nitrate concentration was quickly reduced and a considerable amount of phosphate was released. This was attributed to the availability of acetate in this stage. For effective nitrogen and phosphate removal, a short anoxic phase was beneficial before an aerobic phase.</description><subject>Acetates</subject><subject>Bacteria - metabolism</subject><subject>Biological and medical sciences</subject><subject>Biological phosphorus removal</subject><subject>Bioreactors</subject><subject>Denitrification</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Glucose</subject><subject>Nitrates - metabolism</subject><subject>Nitrification</subject><subject>Nutrient removal</subject><subject>Oxygen - metabolism</subject><subject>Phosphorus - metabolism</subject><subject>Sequencing batch reactor (SBR)</subject><subject>Sewage - microbiology</subject><subject>Time Factors</subject><subject>Waste Disposal, Fluid - methods</subject><issn>0960-8524</issn><issn>1873-2976</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkU1vGyEQQFGVqnHS_oWIS3LbLbAs4FuiqB-RIvXiWw8IZocaa724sI6S_vpi2VVyqwQawbxhRg9CrjhrOePq86b1MeUZYd0KxrqW85YJ8Y4suNFdI5ZanZEFWyrWmF7Ic3JRyoZVkGvxgZzznhkutVmQn6s1UgwBYaYpUDfVlZ4j0D9pQpomWtuM6VcEN9LdOpW6877QjNv0VK_8C3W04O89TnM8nN0M65p1MKf8kbwPbiz46RQvyerrl9X99-bxx7eH-7vHBqTo58YbJ8USIKgehBgApVBM6mHgzKlOa-adDMZ4NEwFcMIw7wdkQy-4kj50l-Tm-OwupzpIme02FsBxdBOmfbFcca27TlZQHUHIqZSMwe5y3Lr8YjmzB6t2Y_9ZtQerlnNbrdbCq1OHvd_i8Fp20liB6xPgSjUVspsgljec1kttVOVujxxWHU8Rsy0QcQIcYq4_YIcU_zfLX4_Umik</recordid><startdate>20040801</startdate><enddate>20040801</enddate><creator>Akin, Beril S</creator><creator>Ugurlu, Aysenur</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope></search><sort><creationdate>20040801</creationdate><title>The effect of an anoxic zone on biological phosphorus removal by a sequential batch reactor</title><author>Akin, Beril S ; Ugurlu, Aysenur</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c425t-b8a429ccf65c22dce426047dd10a63770ba4f88be806fca280bbde0d52164bf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Acetates</topic><topic>Bacteria - metabolism</topic><topic>Biological and medical sciences</topic><topic>Biological phosphorus removal</topic><topic>Bioreactors</topic><topic>Denitrification</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Glucose</topic><topic>Nitrates - metabolism</topic><topic>Nitrification</topic><topic>Nutrient removal</topic><topic>Oxygen - metabolism</topic><topic>Phosphorus - metabolism</topic><topic>Sequencing batch reactor (SBR)</topic><topic>Sewage - microbiology</topic><topic>Time Factors</topic><topic>Waste Disposal, Fluid - methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Akin, Beril S</creatorcontrib><creatorcontrib>Ugurlu, Aysenur</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Bioresource technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Akin, Beril S</au><au>Ugurlu, Aysenur</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The effect of an anoxic zone on biological phosphorus removal by a sequential batch reactor</atitle><jtitle>Bioresource technology</jtitle><addtitle>Bioresour Technol</addtitle><date>2004-08-01</date><risdate>2004</risdate><volume>94</volume><issue>1</issue><spage>1</spage><epage>7</epage><pages>1-7</pages><issn>0960-8524</issn><eissn>1873-2976</eissn><abstract>Nitrate can affect phosphate release and lead to reduced efficiency of biological phosphorus removal process. The inhibition effect of remaining nitrate at the anaerobic/anoxic phases was investigated in a lab scale sequencing batch reactor. In this study the influence of denitrification process on reactor performance and phosphorus removal was examined. The experiments were carried out through simultaneous filling and decanting, mixing, mixing-aeration and settling modes. Glucose and acetate were used as carbon sources. The proposed treatment system was capable of removing approximately 80% of the influent PO
4-P, 98% NH
4-N and 97% COD at a SRT of 25 days. In the fill/decant phase, anoxic and anaerobic conditions prevailed and a large quantity of nitrate was removed in this stage. In the anoxic phase the remaining nitrate concentration was quickly reduced and a considerable amount of phosphate was released. This was attributed to the availability of acetate in this stage. For effective nitrogen and phosphate removal, a short anoxic phase was beneficial before an aerobic phase.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><pmid>15081478</pmid><doi>10.1016/j.biortech.2003.11.022</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
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| ispartof | Bioresource technology, 2004-08, Vol.94 (1), p.1-7 |
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| language | eng |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Acetates Bacteria - metabolism Biological and medical sciences Biological phosphorus removal Bioreactors Denitrification Fundamental and applied biological sciences. Psychology Glucose Nitrates - metabolism Nitrification Nutrient removal Oxygen - metabolism Phosphorus - metabolism Sequencing batch reactor (SBR) Sewage - microbiology Time Factors Waste Disposal, Fluid - methods |
| title | The effect of an anoxic zone on biological phosphorus removal by a sequential batch reactor |
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