Ammonium removal from wastewater via struvite pyrolysate recycling with Mg(OH)2 addition

Magnesium ammonium phosphate (MAP) pyrolysate recycling technology was investigated with Mg(OH)2-mediated pyrolysis. The results revealed that the removal ratio of ammonium was stable at about 75%, and could be increased to 79% after additional acidolysis. The phosphate concentration in the supernat...

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Veröffentlicht in:Water science and technology : a journal of the International Association on Water Pollution Research. - 1986. - 68(2013), 12 vom: 19., Seite 2661-7
1. Verfasser: Yu, Rongtai (VerfasserIn)
Weitere Verfasser: Cheng, Subin, Ren, Hongqiang, Wang, Yanru, Ding, Lili, Geng, Jinju, Xu, Ke, Zhang, Yan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2013
Zugriff auf das übergeordnete Werk:Water science and technology : a journal of the International Association on Water Pollution Research
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Ammonium Compounds Magnesium Compounds Phosphates Waste Water Water Pollutants, Chemical Struvite AW3EJL1462 Magnesium Hydroxide NBZ3QY004S
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520 |a Magnesium ammonium phosphate (MAP) pyrolysate recycling technology was investigated with Mg(OH)2-mediated pyrolysis. The results revealed that the removal ratio of ammonium was stable at about 75%, and could be increased to 79% after additional acidolysis. The phosphate concentration in the supernate was low at 2 mg/L. The optimum conditions for ammonia release were a 1:1 molar ratio of Mg(OH)2:NH4(+), a heating temperature of 110 °C and a heating time of 3 h. With continual additions of Mg(OH)2 to release ammonia, magnesium phosphate (Mg3(PO4)2) was suggested as a possible derivative. However, with Mg(OH)2-mediated pyrolysis, the growth and nucleation of MAP was inhibited during MAP pyrolysate recycling 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
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650 7 |a Magnesium Compounds  |2 NLM 
650 7 |a Phosphates  |2 NLM 
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650 7 |a Water Pollutants, Chemical  |2 NLM 
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650 7 |a AW3EJL1462  |2 NLM 
650 7 |a Magnesium Hydroxide  |2 NLM 
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700 1 |a Cheng, Subin  |e verfasserin  |4 aut 
700 1 |a Ren, Hongqiang  |e verfasserin  |4 aut 
700 1 |a Wang, Yanru  |e verfasserin  |4 aut 
700 1 |a Ding, Lili  |e verfasserin  |4 aut 
700 1 |a Geng, Jinju  |e verfasserin  |4 aut 
700 1 |a Xu, Ke  |e verfasserin  |4 aut 
700 1 |a Zhang, Yan  |e verfasserin  |4 aut 
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773 1 8 |g volume:68  |g year:2013  |g number:12  |g day:19  |g pages:2661-7 
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