N.E.W.B.I.E.S. Pilot Installation
Current status: project finished
Last updated: 16 may 2022
On this page, you’ll find more information on the pilot installation that has been developed as part of the N.E.W.B.I.E.S. project.
Along with the most notable (physical) characteristics of the installation, up-to-date Key Performance Indicators (KPIs) of the installation as they result from operation on different waste waters will be presented.
Design principles
- Removal and recovery of 1 kg N / day from selected waste waters
- At a electrical energy expense of less than 2.75kWh per kg N recovered
- automated cleaning-in-place procedures to minimize waste pre-treatment requirements
- future upgradeability – omit use of external stripping acid
Specifics per test site
Phase 1: Reject water from digestate sludge centrifuge
Location: Municipal Waste Water Treatment Facility “Trargisa”, Girona, Spain
Period of pilot operation: October 2019 – July 2020
Achieved KPIs:
- Ammonium Sulfate Concentration in the product: up to 150 g / L
- Coulombic Efficiency towards recovered NH4: 20-30%
- %Removal efficiency: 60 % max
- Energy demand per g N recovered: 10-20 kWh / kg N
Site/waste-specific remarks: Excessive CIP required due to too high Ca : N ratio
Phase 2: Human urine (source separated, hydrolyzed)
Location: Eco-community Arneco, Arnhem, The Netherlands
Period of pilot operation: July 2020 – February 2021
Achieved KPIs:
- Ammonium Sulfate Concentration in the product: up to 250 g / L
- Coulombic Efficiency towards recovered NH4: 30-40%
- Removal efficiency: up to 80%
- Energy demand per g N recovered: 6-12 kWh / kg N
Site/waste-specific remarks: N concentration in hydrolyzed urine was somewhat lower than expected due to flushing water dilution (1 g N / L instead of 3-4 g / L anticipated)
Phase 3: Landfill leachate
Location: Evides operated Landfill site, Nieuwdorp, The Netherlands
Period of pilot operation: March – September 2021
Achieved KPIs:
- Ammonium Sulfate Concentration in the product: approx. 200 g /L
- Coulombic Efficiency towards recovered NH4: 13%
- Removal efficiency: 30%
- Energy demand per g N recovered: 28 kWh / kg N
Site/waste-specific remarks: due to high sodium content of the wastewater, a substantial part of energy was directed towards sodium transport and not to recovery of ammonia. This wastewater was therefore not deemed compatible with the developed technology.
Technical Specifications
N.E.W.B.I.E.S. Pilot installation- Skid manufacturer: LPS B.V.
- Process Automations: Pro-Control B.V.
- Dimensions: 5.00m x 2.00m x 1.00m (LxHxW)
- Fully automated CIP for unattended continuous operation
- Volumetric treatment capacity: approx 1m³ per day
- N-Removal efficiency: 60-90%
- Energy efficiency: kWh per kg N
- Max. product concentration: 15-20 wt% product
- Total ED-membrane area: 3.2 m²
- Stripper-acid-free operation
Pilot installation Progress updates
PP#13 Digestate Phase Final Report
As these results have now been published in a peer reviewed journal as well (see our publication section) the internal reporting on the digestate phase is made public.
PP#12 Urine Phase Final Report
As these results have now been published in a peer reviewed journal as well (see our publication section) the internal reporting on the urine phase is made public.
PP#11 – Leachate phase final report
As the operation on the leachate phase didn't show very promising perspectives from an application point of view, the consortium has decided not to do the effort of publishing this in a peer-reviewed journal. The final report as composed within the project consortium is disclosed hereby.
PP#10: Layman report
As part of the project finalization, the results obtained over the complete project duration have been summarized in non-expert readable form. Click here to download the Laymens report
PP#9: Preliminary results on leachate
The first analytical results have been analysed for the leachate scenario and are presented in the attached report. As expected the high conductivity of the wastewater and relatively large sodium content caused inefficiencies that we hope to solve in the second and last pilot leg.
PP#8: Last testing site: pilot commissioning on Landfill Leachate
Time has come for the pilot to move to it's last test site within the NEWBIES project: the Landfill facility of Indaver in Nieuwdorp, Zeeland. Here it will treat the leachate that percolates through the landfills. A challenging wastewater, that compared to previous sites contains elevated salt concentrations and humics. Commissioning of the pilot went smoother than ever though!
PP#7: Second results on treatment of urine
The full experimental scheme of process characterization conditions on urine has been finished and preliminary results are reported, with some analytical data not available yet. Based on the obtained results, a most favorable combination of current density, operational mode, feed control method and CIP parameters is defined. We're looking forward how these conditions will turn out to perform on the longer run!
PP#6: First results on urine
Progress is speeding up! Within weeks after its commisioning on urine, characterization runs were succesfully carried out. Uninterrupted by practical hiccups, the first - albeit very preliminary - results on attained KPIs can be provided. Moreover, the plan for the time ahead is further refined.
PP#5: Pilot commissioned on urine
The pilot installation arrives at the second testing location and is commisioned. This time it will treat source separated urine. An impresison of the first weeks
PP#4: Second results on digestate
With the initial teething problems worked out of the way, a series of characterization runs has been performed to target the most substantial process loss factors. Detailed analysis of measured ion transport is performed, resulting KPIs are reported and some preliminary conclusions on the attainable performance and inherent limitations found for the reject water casus are given. Download the progress presentation here.
PP#3: Facing reality: first results on digestate
Operating the pilot for the first time on a real wastewater caused a small explosion in teething problems to surface. Scaling in places we didn't expect them, process automation showing less stable under conditions not tested before, and composition-specific performance losses that need further investigation. We've got work to do! Read more about in this progress report.
PP#2: Hook up the reject water
After a week of Site Acceptancy Testing at LPS, the Pilot has been transported to Girona to be operated on its first real wastewater: reject water from sludge digesters. Some pictures of the first week in a sunny Catalunya.