Research & Development

“Being innovative” are not just words for us. To keep market leading positions, we are trying always to be “at the edge” of the latest technology. For this purpose we invest into scientific research. Our company is constantly developing new products and processes based on scientific research projects and investigations.

Creation of new small wastewater treatment plant, based on a coherent biological treatment technology

On the test bench were tested different batch using the opportunity of basic and tertiary wastewater treatment chain. During tests wastewater chemical analysis and microbiological analysis of biomass were perform. Based on the results of the tests was developed biological treatment plant, operating on biofiltration principle, also was constructed prototype and the operation efficiency tests were performed.

Project unique features:

· Created a biological treatment plant, which operation not require special care and can be understood by the average consumer.

· The wastewater treatment process does not require any electricity source.

· There is no need to install secondary settling tanks, because the micro-organisms on the boot is not taken out of the bioreactor, in addition due to specific inner breathing process amount of microorganisms inside bioreactor increase very slow.

Project task:

Create a simple, special maintenance-free, cost-effective wastewater treatment plant for small wastewater that is disposed not only organic substances but also nitrogen and phosphorus.

Creation of tertiary wastewater treatment equipment

In agglomerations with PE exceeding 10,000, wastewater needs in practice be treated in tertiary treatment step. Tertiary wastewater treatment is also applied in smaller wastewater treatment plants when the required degree of treatment is not achieved during primary and secondary treatment or where the concentrations of discharged wastewater

pollutants exceed the allowable values of concentrations of pollutants according to the effect on the reception facility

Hypothesis that biofilm reactors – Irrigated filters or rotating immersion drums – can be applied to medium-sized tertiary wastewater treatment facilities for waste water treatment. In order to achieve high pollutant removal efficiency, it is necessary to select a suitable reactor biofilm filler. High filler specific surface area for higher biomass concentration in the reactor, and the high porosity – improves the oxygen transfer and reduces the possibility of filler clogging.

Project task:

Develop and test a new tertiary (additional) wastewater treatment equipment, which would improve the indicators of wastewater by BOD, SM, total phosphorus and total nitrogen and to avoid the use of chemical reagents.

Related publications and articles:

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,

Primary Sludge Hydrolysis

One of reasons of non-effective biological nutrient removal from wastewater is lack of readily biodegradable organic matter. This problem could be solved by application of sludge hydrolysis process. The conditions for hydrolysis of primary sludge could be created performing the recirculation of the primary sludge and ensuring the required sludge retention time. Obtained results showed that hydrolysis process allowed improving the ratio between organic matter and nutrients in wastewater.

Typical (classic) wastewater treatment technological scheme will be improved by installing additional equipment before the bioreactor. That will improve the primary sludge hydrolysis process. Primary sludge circulation process will be added, main technological parameters will be optimized (residence time in the sludge concentration, settling of the hydraulic pressure load, the recirculation amount and etc.). The task is to achieve a high level of wastewater treatment, to reduce pollutants in the treated waste water of ≤ 0.5 mg / l Pb and ≤ 10 mg / l Nb.

Project task:

Develop and test a new wastewater treatment technology, which while optimized primary sludge hydrolysis process, will improve the total phosphorus and total nitrogen biological removal efficiency from wastewater.