Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Production and basic morphology of struvite crystals from a pilot-scale crystallization process.

H Huang1, D S Mavinic, K V Lo

  • 1Environmental Engineering Group, Department of Civil Engineering, University of British Columbia, Vancouver, Canada.

Environmental Technology
|March 22, 2006
PubMed
Summary

This study demonstrates a pilot-scale struvite crystallization process yielding highly pure struvite crystals. Process parameters like retention time and magnesium dosage significantly influenced crystal characteristics for nutrient recovery.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Operational strategy for nitrogen removal from centrate in a two-stage partial nitrification--anammox process.

Environmental technology·2014
Same author

Recovering nutrients from wastewater treatment plants through struvite crystallization: CFD modelling of the hydrodynamics of UBC MAP fluidized-bed crystallizer.

Water science and technology : a journal of the International Association on Water Pollution Research·2009
Same author

Assessing struvite precipitation in a pilot-scale fluidized bed crystallizer.

Environmental technology·2008
Same author

Phosphorus recovery from anaerobic digester supernatant by struvite crystallization: model-based evaluation of a fluidized bed reactor.

Water science and technology : a journal of the International Association on Water Pollution Research·2008
Same author

Reducing operating costs for struvite formation with a carbon dioxide stripper.

Water science and technology : a journal of the International Association on Water Pollution Research·2008
Same author

The measurement of magnesium: a possible key to struvite production and process control.

Environmental technology·2008

Area of Science:

  • Environmental Engineering
  • Materials Science
  • Chemical Engineering

Background:

  • Anaerobic digestion of wastewater generates nutrient-rich supernatants.
  • Struvite (magnesium ammonium phosphate) crystallization is a method for nutrient recovery.
  • Optimizing struvite precipitation is crucial for efficient phosphorus and nitrogen removal.

Purpose of the Study:

  • To evaluate a pilot-scale struvite crystallization process using anaerobic digester supernatants.
  • To characterize the purity, size, and morphology of the produced struvite crystals.
  • To identify key operational parameters affecting struvite crystal properties.

Main Methods:

  • Operation of a pilot-scale struvite crystallization reactor.
  • Influent sourced from full-scale anaerobic digester treatment plants.

Related Experiment Videos

  • Analysis of struvite crystal composition, purity, size, and morphology.

    • Main Results:

    • Produced struvite crystals exhibited high purity (91.2%–94.1%).
    • Crystals were easily separated, round, hard, and larger than 1.5 mm.
    • Crystal retention time and magnesium dosage significantly impacted crystal size, hardness, and morphology.

    Conclusions:

    • The pilot-scale process effectively produced high-purity struvite from anaerobic digester supernatants.
    • Optimizing reactor retention time and magnesium dosage can control struvite crystal characteristics.
    • This method offers a viable route for nutrient recovery and wastewater treatment.