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Struvite crystallisation and recovery using a stainless steel structure as a seed material.

By Kristell S. Le Corre, Eugenia Valsami-Jones, Phil Hobbs, Bruce Jefferson and Simon A. Parsons

Abstract

A metallic system acting as a seed substrate has been designed and developed in order to assess its efficiency in recovering phosphorus as struvite. The device, consisting of two concentric stainless steel meshes, was immerged in the upper section of a pilot crystallisation reactor fed with synthetic liquors (MgCl2·6H2O, NH4H2PO4,) for 2 h. Apart from soluble PO4-P removals which remained in the range 79–80% with or without application of the metallic system, it was found that under the specific operating conditions tested the meshes were capable of accumulating struvite at a rate of 7.6 gm−2 h−1, hence reducing significantly the amount of fine particles remaining in solution from 302.2 to 12 mg L−1 when compared to trials wit

Topics: Seeded crystallisation, Struvite, Metallic accumulation system, P removal and recovery
Publisher: Elsevier Science B.V., Amsterdam.
Year: 2007
DOI identifier: 10.1016/j.watres.2007.03.002
OAI identifier: oai:dspace.lib.cranfield.ac.uk:1826/1855
Provided by: Cranfield CERES
Journal:

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Citations

  1. (2000). An economic and environmental evaluation of the opportunities for substituting phosphorus recovered from wastewater treatment works in existing UK fertiliser markets. doi
  2. (2005). Auto-nucleation and crystal growth of struvite in a demonstrative fluidized bed reactor (FBR). doi
  3. (2001). Controlled crystallisation for removing phosphorus from anaerobic digester sidestreams. doi
  4. (1975). Crystalline phosphate precipitation from anaerobic animal waste treatment lagoon liquors. doi
  5. (2003). Development of a high efficiency phosphorus recovery method using a fluidised-bed crystallized phosphorus removal system.
  6. (1993). Effects of a magnetic field on the formation of CaCO3 particles. doi
  7. (2005). Impact of calcium on struvite crystal size, shape and purity. doi
  8. (2006). Impact of reactor operation on success of struvite precipitation from synthetic liquors. In: Understanding20 struvite crystallisation and recovery. doi
  9. (2006). Influence of seed material characteristics on rapid struvite recovery. In: Understanding Struvite Crystallisation and Recovery. doi
  10. (2003). Modelling21 multiple mineral precipitation in anaerobic digester liquor. doi
  11. (2002). P removal from anaerobic supernatants by struvite crystallisation: long term validation and18 process modelling. doi
  12. (1972). Phosphate deposits in digestion systems.
  13. (2003). Pilot-scale study of phosphorus recovery through struvite crystallization-examining the process feasibility. doi
  14. (2000). Postdigestion struvite precipitation using a fluidised bed reactor. doi
  15. (2004). Recent advances in removing phosphorus from wastewater and its use as fertilizer doi
  16. (2005). Recovery of phosphorus from swine wastewater through crystallization. doi
  17. (2004). Removal of struvite to prevent problems associated with its accumulation in wastewater treatment works. doi
  18. (2000). Spontaneous precipitation of struvite from aqueous solutions. doi
  19. (1998). Standard methods for the examination of water and wastewater, 20 th Edition.
  20. (1989). Struvite deposits in pipes and aerators. doi
  21. (2002). Struvite formation and the fouling propensity of different materials. doi
  22. (2002). Struvite formation, control and recovery. doi
  23. (2004). Struvite scale formation and control. doi
  24. (1998). The influence of magnetic fields on calcium carbonate precipitation. doi
  25. (2001). Three years experience of operating and selling recovered struvite from full-scale plant. doi

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