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Use of a Seeder Reactor to Manage Crystal Growth in the Fluidized Bed Reactor for Phosphorus Recovery.
- Source :
- Water Environment Research (10614303); Apr2007, Vol. 79 Issue 4, p406-413, 8p, 4 Diagrams, 4 Graphs
- Publication Year :
- 2007
-
Abstract
- The authors have been engaged in the development of a phosphorus recovery system capable of maintaining high recovery efficiencies, with the chemical cost suppressed. This time, they conducted demonstration tests of a fluidized bed magnesium ammonium phosphate reactor provided with a seeder reactor for the supernatant from anaerobic digestion using a pilot experimental plant with a wastewater treatment capacity of 20 m3/d. For the digestion supernatant with a phosphorus concentration of approximately 300 mg/L, the treated water phosphorus concentration was 10 to 25 mg/L, and the phosphorus recovery efficiency was more than 90%. Relative to the chemical cost in the case of magnesium chloride, the chemical cost in the case of magnesium hydroxide is approximately 40%. Thus, with the new system, it was possible to reduce the running cost while maintaining high recovery efficiencies. [ABSTRACT FROM AUTHOR]
- Subjects :
- MAGNESIUM
AMMONIUM
CRYSTAL growth
PHOSPHATES
WASTEWATER treatment
CHLORIDES
HYDROXIDES
Subjects
Details
- Language :
- English
- ISSN :
- 10614303
- Volume :
- 79
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Water Environment Research (10614303)
- Publication Type :
- Academic Journal
- Accession number :
- 24780737
- Full Text :
- https://doi.org/10.2175/106143006X111899