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manure
valorization: calcium phosphate and methane recovery

Type of project: MSc Thesis/Internship
Anticipated start: From March 2025
Duration: minimum 6 months
Location: Wetsus, European center of excellence for sustainable water technology (Leeuwarden, the Netherlands)

Allowance: There are a few possibilities for allowances:
– The allowance for students is €200. The student can apply for ‘Wetsus Grant’ allowance (€200 extra; an internal committee decides if the allowance will be granted).
– Students can apply for Erasmus; (if the Erasmus grant is less than €400, the student can apply for the Wetsus Grant).
– Erasmus
*The Wetsus Grant allowance is not guaranteed and must be approved by the Grant Committee.

Project description:
Phosphorus (P)  is a critical nutrient primarily derived from non-renewable phosphate rock, and its excessive release into the environment contributes to environmental problems such as eutrophication. Animal manure, particularly cow manure, represents the largest secondary source of phosphorus that can be sustainably recovered and reused. In the Netherlands alone, 74 million tons of animal manure are produced annually, with cow manure accounting for 83% of this amount. This project focuses on developing an innovative process to optimize the simultaneous recovery of calcium phosphate (CaP) and methane within a single bioreactor. The recovered CaP can be repurposed as fertilizer, supporting sustainable agriculture, while methane provides a renewable energy source.

Combining biotechnology, crystallization, and process engineering, this project explores factors like temperature and calcium-to-phosphorus ratio affecting CaP crystallization and methane production. Students will gain hands-on experience with advanced analytics, bioreactor operation, and sustainable agricultural innovations.

Your tasks:

  • Operation and maintenance of UASB reactors
  • Manure sampling and analysis
  • Methane production monitoring
  • Crystallization product analysis
  • Interpretation of data
  • Reporting and documentation

 

Your profile:

  • Currently enrolled in Bachelor’s or Master’s studies
  • Background in Bioprocess Engineering/Environmental Technology/(Bio)Chemical Engineering or similar studies
  • Proficient in written and spoken English
  • Highly motivated to learn about bioprocess and crystallization
  • Willing to work in a dynamic, multidisciplinary, and international team environment.
  • Experience with bioreactors, gas fermentation and wastewater/manure treatment is a plus
  • Currently studying in the Netherlands or has citizenship from an EU country.

How to apply: Please upload your CV (max. 2 pages), motivation letter (max. 1 page), and a transcript via the application form provided below (in English). Feel free to contact Feride Ece Kutlar (ece.kutlar@wetsus.nl) if you have further questions or need more information.

Application form Electrochemical regeneration of alkaline solvent for carbon capture

  • Max. bestandsgrootte: 1 GB.
  • Max. bestandsgrootte: 1 GB.

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