[     Business case listing ](/en/case-studies "  Business case listing")



 

 

 

### **The client**

- 350,000 PE (people equivalent)
- Located on the Baltic Sea, next to UNESCO World Heritage Site
- Main Lithuanian seaport, 3rd largest city in the country
- The plant was near its maximum capacity and over the past 2 years, the effluent quality was extremely close to the permit of 10 mg/l tot-N.



 

 

 



### **The challenges**

- Klaipedos Vanduo aimed to reduce operational costs (OPEX) and improve effluent performance.
- They wanted to increase WWTP operations during wet weather situations.
- To reduce risks, they sought a company with a Performance Guarantee Contract to ensure expected results are achieved.



 

 

 

 

 

 



 

### **The solution**

- In 2019, Klaipėdos Vanduo awarded a contract to Hubgrade for real-time optimization of process performance at the Klaipėda WWTP.
- Hubgrade Wastewater Plant Performance has digital optimization expertise in various fields, including wastewater treatment and real-time optimization.
- The implementation of Hubgrade Wastewater Performance Plant (HWP) resulted in the following benefits:
    - Ensured compliant effluent despite increased BOD/TN loading.
    - Reduced environmental impact by reducing tot-N in the effluent.
    - Significantly reduced operational expenses for energy and chemical consumption.
    - Significantly reduced the Carbon Footprint of the utility.



 

 

 

 

 

 



 

 

 





Innovative digital solutions, like Hubgrade Performance, are a sustainable, cost-effective way for us to continuously improve our WWTP operational processes. An intelligent use of real-time data from our entire system reduced our operational expenses and effluent concentrations.

**Kristina Bereišienė**, Head of Wastewater Treatment Service



 

 

 



 

 

### KEY FIGURES

- M3 treated per day: 432,000
- 180k€ saved per year on energy and external carbon dosing
- 2180T CO2-eq saved per year on electricity, external carbon, transportation, and effluent charge
- 14% reduction of Total-N in effluent