Technology for P recovery as struvite starting from waste water with crystallization reactor (ID:252)

  • 0
  • 1
  • 2
Input material
Wastwater from WWTP, magnesium salt and NaOH
Output product
Struvite / Effluent for discharge
Processing capacity
2 t/day
Technology Status
Available on the market
Keywords
struvite
wastewater
crystallization
Ostara Pearl
nutrient recovery
Technology description

The Struvite Recovery System of the Madrid Sur  Waste Water Treatment Plant (WWTP) is designed to recover phosphate from a combined feed, in the  range  from  50  to  120  m3/h  maximum  anaerobic  digested  sludge,  dehydration  overflows  and  flotation overflows. The system is dimensioned to produce 2 t/day of the product ready to be commercialized. The Nutrient Recovery facility consists of 2 groups of feed pumps, a crystallising reactor and its associated pumps, valves  etc.,  a  draining  and  drying  product  step,  a  product  sorting  and  packaging  step,  a  programmable  logic controller (PLC) cabinet, an engine control centre, a MgCl2  storage tank and a NaOH storage tank. The  draining  of  the  dehydration  and the clarification  of the  flotation are  fed into  the  lower  part  of  the  reactor where they are diluted with recirculation and injected with MgCl2  (32%) and NaOH (25%). Inside the reactor the struvite  (MgNH4 PO4 6H2O)  precipitates  in  a  controlled  way  in  small  hard  granules.  At  the top  of  the  reactor,  an integrated clarifier retains the granules inside the reactor. The effluent is sent to a tank from where it is pumped to the primary decantation of the WWTP. Struvite particles are collected from the bottom of the reactor, washed, dried, sorted by size and packaged for shipment. 

Linked Product: Struvite from waste water by "Canal de Isabel II S.A." process, ID:251

Basic information

Vendor:
  • Name: Canal de Isabel II
  • Contact: Eduardo de Elío y de Elío
  • Vendor website
    Country:
    Spain
    Technology main category:
    Phosphorus precipitation from liquid manure, waste water and drain water
    Technology subcategory:
    Phosphorus precipitation from wastewater/sludge

    Languages

    Summary:

    Technologie zur P-Rückgewinnung als Struvit ausgehend von Abwasser mit Kristallisationsreaktor

    Abstract:

    Unterlagen:

    Unterlagen:

    Summary:

    Technologie de récupération de phosphate comme la struviteà partir d’eaux usées avec un cristallisoir

    Abstract:

    Documents:

    Documents:

    Summary:

    Technologie voor P-terugwinning uit afvalwater door struvietproductie met een kristallisatiereactor

    Abstract:

    Documentos:

    Documentos:

    Summary:

    Tecnologia per il recupero di P come struvite a partire da acque reflue mediante un reattore di cristallizzazione

    Abstract:

    Documenti:

    Documenti:

    Summary:

    Technologie voor P-terugwinning uit afvalwater door struvietproductie met een kristallisatiereactor

    Abstract:

    Documenten:

    Documenten:

    Summary:

    Technologia odzyskiwania P jako struwitu pochodzącego ze ścieków z reaktorem do krystalizacji

    Abstract:

    Dokumenty:

    Dokumenty:

    Summary:

    Szennyvíz alapú struvit P kinyerésének technológiája a kristályosító reaktor alkalmazásával

    Abstract:

    Dokumentumok:

    Dokumentumok:

    Find out more

    Practice Abstract:
    Info sheet:
    Info graphics:
    Video:
    Training material:
    Other files: