Type of Project: BSc/MSc internship
Starting date: Feb or Mar. 2025
Duration: > 5 months (could be discussed)
Salary: The allowance for students is €200.
Location: Wetsus – European center of excellence for sustainable water technology (Leeuwarden, 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.
Introduction:
Efforts to address soil deficiencies and improve global food production have resulted in a heavy reliance on mineral fertilizers. Human feces and urine contain essential nutrients such as carbon, nitrogen, phosphorus and potassium which are crucial for plant growth. Fortunately, anaerobic treatment of concentrated source-separated blackwater under thermophilic conditions is already shows promise for effective COD removal and biogas production, along with pathogen elimination for enhanced safety of nutrients and biosolids during reuse.
Thermophilic treatment of blackwater, at 55°C, is a stable process that has been previously pilot tested under the H2020 Run4Life project. Already, COD removal (~70%) and methanization conversions (~60%) comparable to those reported during mesophilic treatment have been achieved while operating at higher organic loading rates (OLRs) and shorter sludge and hydraulic retention times (SRTs and HRTs). Phosphorous was largely retained in the sludge, while nitrogen and potassium was present in the effluent.
Now, we will optimize operating conditions for (hyper)thermophilic anaerobic treatment, as enhanced hydrolysis should allow for long-term operation at even higher loading rates and shorter retention times, without compromising on effluent quality. Also, there is need to investigate alternative products, preferably separate CNPK nutrient recovery streams as single nutrient agricultural inputs are more beneficial.
Your tasks:
Operation of thermophilic anaerobic reactors:
Wastewater quality analysis (Microwave digestion along with ICP-OES, TOC analyzer, Ion chromatography, Hach Lange kits) Data analysis.
Your profile:
Currently enrolled in Bachelor’s or Master’s studies
Background in environmental, chemical, physical, or material fields, whether in science or engineering disciplines
Good practical and experimental experience
Good communication skills in English.
Currently studying in the Netherlands or has citizenship from an EU country.
What we offer:
A position at a leading technology institute with a multidisciplinary team and an international environment.
Opportunity to learn while building sustainable solutions for a circular economy.
How to apply:
Please upload your CV (max. 2 A4 pages), a motivation letter (max. 1 A4 page), and a list of the attended courses in the application form below. Feel free to contact Melissa Mativo (melissa.mativo@wetsus.nl) if you have further questions or need more information.