PROJECT - Modernization of the mechanical wastewater treatment facility
CLIENT - Wodociągi i Kanalizacje Miejskie Spółka z o. o. w Augustowie
OBJECT - Augustów WWTP LOCATION Augustów, Poland
COMMISSIONING - January 2017.
The Municipal Wastewater Treatment Plant is situated in the southern part of Augustów. Its capacity is 10 000 m3/d.
In 2016 EKOTON Company was chosen to implement investment project for the modernization of the main sewage pumping station which located at the Augustów WWTP. Within the project, the following equipment for mechanical wastewater treatment facility was produced, installed and commissioned:
The aim of the pumping station modernization was to increase the efficiency of mechanical impurities removal and waste thickening with full automation of the process.
In accordance with initial project, wastewater was fed via two collectors into the pumping station, where it was mechanically treated on the screens with 25 mm mesh.
Screen cloth cleaning was carried out manually by the personnel as it became clogged. The removed waste was fed into the container for its further lifting by means of lifting device to a zero mark (ground surface) into a receiving tank.
The main problems which were occurring during operation of the old equipment are following:
One of the key complication during the project implementation was installation of equipment in existed pumping station among which:
The building was not designed for installation of equipment with length of more than 2,5 m, thus there was a requirement to produce rake screen with 6 m length from separate parts with length of 2 m max. Every part was mounted on supporting structure which were brought together inside the pumping station for further parts assembling inside the building.
The modernization project allowed to achieve the following results:
It should be also noted the additional advantages achieved by mechanical wastewater treatment equipment replacement:
The quantity and mass data of the waste removal from the screens in period from 2015 to 2017 is given below in figures. The pumping station modernization was carried out in the fourth quarter of the 2016 and in January 2017, the new mechanical treatment facility was launched; the data from that year indicates significant treatment parameters improvement.
Reliable screen and screw press design provide the treatment facility with a possibility of round-the-clock and trouble-free operation of equipment in automatic mode. Daily maintenance and inspection requires no more than 15 min.
The mechanical treatment facility modernization at the sewage pumping station allowed to organize efficient wastewater treatment from large and average impurities. Removed wastes are rinsed for organic part reduction and are thickened on the screw press for its volume and weigh reduction. Installed mechanical treatment facilities operate in fully automatic mode and do not require constant personnel presence. The mechanical treatment process improvement allowed to solve all of the set challenges and assured stable and uninterrupted wastewater treatment process operation.