Get a consultation info@arginta.lt
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Get a consultation info@arginta.lt
Contact us

Research & development

30+ Years of Experience

Recognition & Achievements

Arginta has been recognized for excellence in environmental engineering and infrastructure projects. The company has received the following prestigious awards:

Best EU-Funded Project Contractor (2013)

Awarded for excellence in executing EU-funded environmental and infrastructure projects​.

Product of the Year Gold Medal (2013, 2015)

Recognized for outstanding environmental engineering solutions​.

More about us

“Being Innovative” Is More Than a Motto

We maintain a constant focus on improving and inventing. From field tests to lab analyses, every R&D endeavor pushes us closer to more reliable, efficient, and cost-effective treatment methods. Our approach includes:

 

✔ Pilot-Scale Testing – Building prototypes and running test benches.

✔ Academic Collaborations – Partnering with local universities and scientists.

✔ Process Simulations & Modeling – Evaluating system performance before deployment.

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Key Research Initiatives

Creation of a New Small Wastewater 
Treatment Plant

Design a maintenance-free, cost-effective WWTP that can handle small wastewater flows without relying on major electricity inputs.
References & Downloads

Key Features

No Secondary Settling Tank: A biofiltration-based approach where microorganisms remain inside the reactor without migrating out.

Minimal Electricity Usage: The system can function with little or no external power source.

Slow Microorganism Growth: Proprietary “inner breathing” process keeps biomass stable, reducing sludge production.

Outcome

A WWTP concept ideal for rural areas or small communities needing robust treatment without heavy operational demands. Prototypes have shown significant promise in removing organic substances, nitrogen, and phosphorus, all at lower energy costs than conventional plants.

Partner With Us Our R&D team is always 
open to new collaborations Contact us

Tertiary Wastewater Treatment 
Equipment

In many agglomerations above 10,000 PE, conventional stages alone aren’t enough for advanced nutrient limits. Smaller facilities may also need final polishing when their secondary processes underperform.

Our Approach

Biofilm Reactors & Irrigated Filters: This technology uses rotating drums or structured filler with high porosity and a large surface area, increasing contact between microorganisms and wastewater.

Reduced Chemical Dependency: We develop solutions that maximize BOD, solids, and nutrient removal without relying on additional reagents.

Adaptable for Scale: Systems are suitable for both mid-range and large WWTPs, ensuring consistent phosphorus and nitrogen reduction.

Result

Our tertiary systems achieve high pollutant removal rates — notably for total nitrogen, total phosphorus, BOD, and suspended solids—while minimizing chemical usage, operational costs, and environmental impact.

Partner With Us Our R&D team is always 
open to new collaborations Contact us

Primary Sludge Hydrolysis

Biological nutrient removal can stall if the wastewater lacks a sufficient ratio of readily biodegradable organics. This shortfall leaves certain bacteria unable to consume nitrogen and phosphorus effectively.

Technical Solution

Dedicated Hydrolysis Unit: Primary sludge is recirculated and held for optimal time, encouraging microbial breakdown into simpler organic compounds.

Enhanced BOD/N/P Ratio: Hydrolysis increases the availability of easily biodegradable carbon, boosting denitrification and phosphorus uptake in the main bioreactor.

Process Integration: The hydrolysis step can be retrofitted into existing treatment lines, immediately improving nutrient removal without major facility overhauls.

Outcome

Improved nitrogen and phosphorus removal, more stable biological processes, and potentially lower overall sludge production. Targets can include effluent pollutants of ≤0.5 mg/l Pb and ≤10 mg/l Nb in some designs, depending on local regulations.

Partner With Us Our R&D team is always 
open to new collaborations Contact us

Publications & Technical Contributions

Analysis of Requirements for Effluent Quality and Their Impact on Status of Rivers

“Environmental Engineering” 10th International Conference
Authors: Regimantas Dauknys, Aušra Mažeikienė

Research of Wastewater Tertiary Treatment

“Environmental Engineering” 10th International Conference
Authors: Regimantas Dauknys, Aušra Mažeikienė

Preliminary Investigation of Primary Sludge Hydrolysis

“Environmental Engineering” 10th International Conference
Authors: Regimantas Dauknys, Aušra Mažeikienė, Anna Haluza, Illia Halauniou, Victor Yushchenko

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Build Something That Lasts

We design, build, and maintain water, wastewater, and sludge treatment systems, pumping stations, energy solutions, and industrial infrastructure. Whether you need consulting, engineering, installation, or maintenance, we deliver systems that work — efficiently and reliably.

    Get in touch

    Have questions about water or wastewater projects? Need a reliable partner for sludge, pumping stations, or renewable energy solutions? Our expert team is here to help. We design, build, and operate sustainable systems that stand the test of time — no excuses, no missed deadlines.

    Reach out, and let’s discuss how Arginta can meet your engineering needs while keeping costs transparent and outcomes guaranteed.