Wastewater Technologies
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PWW is a technology lab, developing IP for high impact wastewater solutions
Industry leaders partner with us to benefit from ground-breaking technologies and consult us for innovation matters
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We are working on a huge challenge. Conventional Active Sludge WWTP architecture does not meet modern Greenhouse Gas emission, micropollutant and energy regulations anymore.
The Ympera architecture transforms wastewater treatment from an energy and logistic cost item into a local water- and energy hub, meeting future environmental demands now.
Ympera is the 4th generation WWTP architecture and EU Green Deal compliant.
The name is derived from the Finnish word Ympyra, which means ‘circle’ And that is exactly what this 4th generation is, completely circular.
We invite industry leaders to join us and get this out there short term. Benefit from an unbelievable market potential and opportunity to ‘really make a difference’.
PWW is the inventor of a physico-chemical FFS Floc Forming System. Compared to common systems, FFS achieves 20% better pollution reduction, and greatly enhanced sludge dewaterability. FFS uses 2 patented innovations: a water-based pre-coagulant, and a special recirculation system. FFS is applicable to municipal, industrial and digestate streams.
PWW has invented a biological treatment Symbio4. A ground-breaking process that, combined with FFS, completely eliminates shortcomings of CAS, SBR, Nereda, and MBBR. It results in extremely low GHG, low energy, significant reduction of micropollutant and superior effluent. 3 Patents (pending)
For the Ympera architecture we have invented MultiTrain to make it adapt easily and efficiently to wet weather influx fluctuations. It reduces total energy consumption, and prevents untreated overflow discharges.
PWW is inviting expert partners of intelligent controls, membrane tech and superior energy recovery solutions to make Ympera superior in each process step.
FFS Floc Forming System
Pilot system for 10 m3/h municipal wastewater
PWW pre-coagulant is water-based and looks like water
FFS systems have multiple applications:
– Municipal digestate: resulting in significantly higher dry solids after centrifuging and cleaner centrate, thus decreased load on the wwtp biology;
– Municipal Primary Step: reduces the load on the existing wwtp, especially if wwtp max capacity is reached. As a huge bonus the FFS primary sludge increases biogas yield significantly;
– Industrial wastewater: FFS physico-chemical process reduces discharge costs and prepares for water reuse;
– Pretreatment for membrane filtration: less load on UF/NF/RO membranes increases membrane efficiency significantly.
– Pretreatment for MBBR and/or helophyte filter: especially for decentral municipal applications this is a most resilient combination that complies with future strict directives for discharge quality or reuse.
FFS Floc Forming System is a physico-chemical eXceptional Separation PreTreatment (XSeppt) that creates strong very well dewaterable and fast settling floc, and an extremely clear liquid from municipal and industrial influent. It is based on two proprietary processes:
Water-based pre-coagulant improves physico-chemical pollution reduction with at least 20% compared to common solutions. The pre-coagulant reduces zeta-potential and oxidises organic coatings on colloids, reducing negative charge and creating new functional groups (-OH, -COOH, -C=O), suitable for metal ions and coagulants to connect to, thus significantly improving coagulation. As such, it can be regarded as a ‘ForceField Separation’ mechanism. In addition, due to oxidation of EPS layers, floc structure becomes more dense and stable.
Internal recirculation system recirculates the dosing materials seedlings and improves its contact time, resulting in effective dosing and optimal floc forming. Often underestimated, sludge dewatering and disposal are a major cost factor. As a treatment step FFS reduces these costs and improves further wastewater processing.
WWTP Den Bosch (NL) influent, FFS XSeppt effluent and sludge
Systems designs are available for:
– FFS / CentraX municipal digestate separation pretreatment
– FFS / XSeppt municipal primary separation pretreatment step
– FFS / InduXx industrial wastewater including separation
FFS CentraX digestate treatment 20 m³/hr, for subsequent dewatering by a centrifuge. Less N and P is led back to the WWTP. Sludge Dry Matter content is up. As a result WWTP capacity is +10-15% ‘overnight’ and sludge processing costs go down.
Test results (WWTP Den Bosch NL):
– COD 808 > 69 mg/L = -91%
– NH4-N ~2000 > 675 mg/L = -66%
– P ~1000 > 16 mg/L = -98%
WWTP Den Bosch (NL) digestate, FFS CentraX effluent & sludge
FFS / XSeppt primary municipal treatment modules enable efficient new WWTP concepts
CentraX results at WWTP Ede, The Netherlands
Module capacity 20-200 m³/hr.
Decentral and modular central version.
Physical-biochemical or physical-ecological.
Stable all-year round. Consumables are tap water, salt, (bio)coagulant, flocculant and electricity.
InduXx systems clean industrial wastewater to new levels
InduXx systems help F&B plants, tanneries, galvanising plants, etc. to reduce discharge costs or make reusable water. InduXx makes DAF effluent 25% cleaner (COD, N and P all -25%). The perfect pretreatment for membrane filtration and water reuse. InduXx includes Float8, a revolutionary DAF to separate the sludge.
System capacity is 10-100 m³/hr.
InduXx results at pig slaughterhouse, The Netherlands
More ground-breaking IP
Resource recovery TitanTube is a dry digester concept that excels in simplicity, scalability and biogas yield.
Dosing material Sigfried is a sustainable water-based flocculant, surpassing ferrate qualities.
Nice to Know
We are proud to say that since March 2025 Arcadis global engineering company supports our wastewater solutions and know how.
PWW partners:
Akramzada GmbH
Other partners
Happy to talk with you!
Having wastewater issues, and need expert opinion?
Expert help configuring a wastewater solution?
Interested in tech licensing or partnering?
Paul +31 6 19965188
Lex +356 77555001
PWW Ltd.
ADD level 2, Hardrocks Business Park,
Burmarrad Road,
Naxxar, NXR 6345 Malta
Reg. No. C 101377
Employer No. 181842
VAT No. MT28940520
Bank Revolut Business
IBAN LT66 3250 0229 9325 1458
NL: Leemansweg 100, 6827 BX Arnhem
