Precipitation of Ammonium from Concentrated Industrial Wastes as Struvite: A Search for the Optimal Reagents
Precipitation of struvite (MgNH 4 PO 4 ) is a known process for purification of wasterwater from high concentrations of ammonium. The optimal conditions for precipitation are basic pH (around 9) and sufficient concentrations of magnesium and phosphate ions. In this work, we accomplished efficient pr...
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| Veröffentlicht in: | Water environment research 2010-07, Vol.82 (7), p.586-591 |
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| creator | Borojovich, Eitan J. C. Münster, Meshulam Rafailov, Gennady Porat, Ze'ev |
| description | Precipitation of struvite (MgNH 4 PO 4 ) is a known process for purification of wasterwater from high concentrations of ammonium. The optimal conditions for precipitation are basic pH (around 9) and sufficient concentrations of magnesium and phosphate ions. In this work, we accomplished efficient precipitation of ammonium from concentrated industrial waste stream by using magnesium oxide (MgO) both as a source of magnesium ions and as a base. Best results were obtained with technical-grade MgO, which provided 99% removal of ammonium. Moreover, ammonium removal occurred already at pH 7, and the residual ammonium concentration (50 mg/L) remained constant upon addition of more MgO without rising again, as occurs with sodium hydroxide (NaOH). This process may have two other advantages; it also can be relevant for the problem of uncontrolled precipitation of struvite in the supernatant of anaerobic sludge treatment plants, and the precipitate can be used as a fertilizer. |
| doi_str_mv | 10.2175/106143009X12529484815755 |
| format | Article |
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C. ; Münster, Meshulam ; Rafailov, Gennady ; Porat, Ze'ev</creator><creatorcontrib>Borojovich, Eitan J. C. ; Münster, Meshulam ; Rafailov, Gennady ; Porat, Ze'ev</creatorcontrib><description>Precipitation of struvite (MgNH 4 PO 4 ) is a known process for purification of wasterwater from high concentrations of ammonium. The optimal conditions for precipitation are basic pH (around 9) and sufficient concentrations of magnesium and phosphate ions. In this work, we accomplished efficient precipitation of ammonium from concentrated industrial waste stream by using magnesium oxide (MgO) both as a source of magnesium ions and as a base. Best results were obtained with technical-grade MgO, which provided 99% removal of ammonium. Moreover, ammonium removal occurred already at pH 7, and the residual ammonium concentration (50 mg/L) remained constant upon addition of more MgO without rising again, as occurs with sodium hydroxide (NaOH). This process may have two other advantages; it also can be relevant for the problem of uncontrolled precipitation of struvite in the supernatant of anaerobic sludge treatment plants, and the precipitate can be used as a fertilizer.</description><identifier>ISSN: 1061-4303</identifier><identifier>EISSN: 1554-7531</identifier><identifier>DOI: 10.2175/106143009X12529484815755</identifier><identifier>PMID: 20669719</identifier><language>eng</language><publisher>Water Environment Federation 601 Wythe Street Alexandria, VA 22314‐1994 U.S.A: Water Environment Federation</publisher><subject>Applied sciences ; Calcium Compounds - chemistry ; Chemical bases ; Chemical precipitation ; Efficiency ; Environmental engineering ; Exact sciences and technology ; General purification processes ; Indicators and Reagents - chemistry ; Industrial Waste ; Landfill ; Magnesium ; magnesium ammonium phosphate ; Magnesium compounds ; Magnesium Compounds - chemistry ; magnesium oxide ; Other industrial wastes. Sewage sludge ; Oxides - chemistry ; Phosphates ; Phosphates - chemistry ; Pollution ; Precipitation ; Quaternary ammonium compounds ; Quaternary Ammonium Compounds - chemistry ; Reagents ; Sodium ; Struvite ; Wastes ; Wastewater ; Wastewaters ; Water treatment and pollution ; X-Ray Diffraction</subject><ispartof>Water environment research, 2010-07, Vol.82 (7), p.586-591</ispartof><rights>2010 WATER ENVIRONMENT FEDERATION (WEF)</rights><rights>2010 Water Environment Federation</rights><rights>2015 INIST-CNRS</rights><rights>Copyright Water Environment Federation Jul 2010</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4796-b27ccdb75e2d7705aecb2dfd9cb9a95fc993efe0d2548c490d11d5f2c86ec2773</citedby><cites>FETCH-LOGICAL-c4796-b27ccdb75e2d7705aecb2dfd9cb9a95fc993efe0d2548c490d11d5f2c86ec2773</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/27870349$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/27870349$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,1411,27903,27904,45553,45554,57995,58228</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=22989606$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/20669719$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Borojovich, Eitan J. C.</creatorcontrib><creatorcontrib>Münster, Meshulam</creatorcontrib><creatorcontrib>Rafailov, Gennady</creatorcontrib><creatorcontrib>Porat, Ze'ev</creatorcontrib><title>Precipitation of Ammonium from Concentrated Industrial Wastes as Struvite: A Search for the Optimal Reagents</title><title>Water environment research</title><addtitle>Water Environ Res</addtitle><description>Precipitation of struvite (MgNH 4 PO 4 ) is a known process for purification of wasterwater from high concentrations of ammonium. The optimal conditions for precipitation are basic pH (around 9) and sufficient concentrations of magnesium and phosphate ions. In this work, we accomplished efficient precipitation of ammonium from concentrated industrial waste stream by using magnesium oxide (MgO) both as a source of magnesium ions and as a base. Best results were obtained with technical-grade MgO, which provided 99% removal of ammonium. Moreover, ammonium removal occurred already at pH 7, and the residual ammonium concentration (50 mg/L) remained constant upon addition of more MgO without rising again, as occurs with sodium hydroxide (NaOH). This process may have two other advantages; it also can be relevant for the problem of uncontrolled precipitation of struvite in the supernatant of anaerobic sludge treatment plants, and the precipitate can be used as a fertilizer.</description><subject>Applied sciences</subject><subject>Calcium Compounds - chemistry</subject><subject>Chemical bases</subject><subject>Chemical precipitation</subject><subject>Efficiency</subject><subject>Environmental engineering</subject><subject>Exact sciences and technology</subject><subject>General purification processes</subject><subject>Indicators and Reagents - chemistry</subject><subject>Industrial Waste</subject><subject>Landfill</subject><subject>Magnesium</subject><subject>magnesium ammonium phosphate</subject><subject>Magnesium compounds</subject><subject>Magnesium Compounds - chemistry</subject><subject>magnesium oxide</subject><subject>Other industrial wastes. Sewage sludge</subject><subject>Oxides - chemistry</subject><subject>Phosphates</subject><subject>Phosphates - chemistry</subject><subject>Pollution</subject><subject>Precipitation</subject><subject>Quaternary ammonium compounds</subject><subject>Quaternary Ammonium Compounds - chemistry</subject><subject>Reagents</subject><subject>Sodium</subject><subject>Struvite</subject><subject>Wastes</subject><subject>Wastewater</subject><subject>Wastewaters</subject><subject>Water treatment and pollution</subject><subject>X-Ray Diffraction</subject><issn>1061-4303</issn><issn>1554-7531</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNqN0V1rFDEUBuAgim1Xf4ISBPFqNJ-TieDFslQtFCqtUu-GbHJis8xM1iSj9N83y64WBNGr5OJ5X05yEMKUvGZUyTeUtFRwQvRXyiTTohMdlUrKB-iYSikaJTl9WO-VNdXxI3SS84YQyhgRj9ERI22rFdXHaPiUwIZtKKaEOOHo8XIc4xTmEfsUR7yKk4WpJFPA4bPJzbmkYAZ8bXKBjE3GVyXNP0KBt3iJr8Ake4N9TLjcAL7YljBWfAnmWy3JT9Ajb4YMTw_nAn15f_p59bE5v_hwtlqeN1Yo3TZrpqx1ayWBOaWINGDXzHmn7VobLb3VmoMH4pgUnRWaOEqd9Mx2LVimFF-gV_vebYrfZ8ilH0O2MAxmgjjnXhPGW6o4_6dUotMtJ-1OvvhDbuKcpvqMvu6CEM6YqKjbI5tizgl8v031B9JtT0m_21z_t83V6PND_7wewf0O_lpVBS8PwGRrBp_MZEO-d0zXUeukC_Ru736GAW7_e4D--vSSyG6Xf7bPb3KJ6b5fdYpwofkdJm27uQ</recordid><startdate>201007</startdate><enddate>201007</enddate><creator>Borojovich, Eitan J. 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C.</au><au>Münster, Meshulam</au><au>Rafailov, Gennady</au><au>Porat, Ze'ev</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Precipitation of Ammonium from Concentrated Industrial Wastes as Struvite: A Search for the Optimal Reagents</atitle><jtitle>Water environment research</jtitle><addtitle>Water Environ Res</addtitle><date>2010-07</date><risdate>2010</risdate><volume>82</volume><issue>7</issue><spage>586</spage><epage>591</epage><pages>586-591</pages><issn>1061-4303</issn><eissn>1554-7531</eissn><abstract>Precipitation of struvite (MgNH 4 PO 4 ) is a known process for purification of wasterwater from high concentrations of ammonium. The optimal conditions for precipitation are basic pH (around 9) and sufficient concentrations of magnesium and phosphate ions. In this work, we accomplished efficient precipitation of ammonium from concentrated industrial waste stream by using magnesium oxide (MgO) both as a source of magnesium ions and as a base. Best results were obtained with technical-grade MgO, which provided 99% removal of ammonium. Moreover, ammonium removal occurred already at pH 7, and the residual ammonium concentration (50 mg/L) remained constant upon addition of more MgO without rising again, as occurs with sodium hydroxide (NaOH). This process may have two other advantages; it also can be relevant for the problem of uncontrolled precipitation of struvite in the supernatant of anaerobic sludge treatment plants, and the precipitate can be used as a fertilizer.</abstract><cop>Water Environment Federation 601 Wythe Street Alexandria, VA 22314‐1994 U.S.A</cop><pub>Water Environment Federation</pub><pmid>20669719</pmid><doi>10.2175/106143009X12529484815755</doi><tpages>6</tpages></addata></record> |
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| ispartof | Water environment research, 2010-07, Vol.82 (7), p.586-591 |
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| source | Jstor Complete Legacy; MEDLINE; Wiley Online Library Journals Frontfile Complete |
| subjects | Applied sciences Calcium Compounds - chemistry Chemical bases Chemical precipitation Efficiency Environmental engineering Exact sciences and technology General purification processes Indicators and Reagents - chemistry Industrial Waste Landfill Magnesium magnesium ammonium phosphate Magnesium compounds Magnesium Compounds - chemistry magnesium oxide Other industrial wastes. Sewage sludge Oxides - chemistry Phosphates Phosphates - chemistry Pollution Precipitation Quaternary ammonium compounds Quaternary Ammonium Compounds - chemistry Reagents Sodium Struvite Wastes Wastewater Wastewaters Water treatment and pollution X-Ray Diffraction |
| title | Precipitation of Ammonium from Concentrated Industrial Wastes as Struvite: A Search for the Optimal Reagents |
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