Delivery And Commissioning Of ESMIL Equipment For The Wastewater Treatment Plant In Manas (Kyrgyzstan) Under An EBRD-Funded Project

Esmil Group completed the manufacturing and commissioning of process equipment for the modernised municipal wastewater treatment plant in Manas (formerly Jalal-Abad until 2025), Kyrgyzstan. The project forms part of an investment financed by the European Bank for Reconstruction and Development (EBRD) under Phase II of the Jalal-Abad Water Supply and Wastewater Rehabilitation Programme.

The investment covers the modernisation, construction and equipping of new process facilities at the plant. It was initiated in response to long-standing regional challenges, including deteriorated wastewater infrastructure, irregular water supply for residents and high operating costs of existing installations.

The project was implemented in cooperation with Egis Company, which provided consulting and engineering support. Drawing on Esmil Group’s experience from projects delivered in Central Asia, the technological solutions were adapted to the specific regional conditions.

Within this framework, we were selected as the main supplier of equipment for key stages of the treatment process. Using solutions from a single manufacturer streamlined project execution and reduced the workload related to design, procurement, installation coordination and commissioning.

Scope of supply
Under the project, Esmil Group manufactured and delivered equipment for the key process stages of the wastewater treatment plant with a design capacity of 20,000 m³/day.

ESMIL RKE Back Raked Screens with Screw Conveyor and Screw Compacting Press
For the preliminary mechanical treatment stage, a system based on ESMIL RKE back raked screens was supplied, operating in conjunction with a screw conveyor and a screw compacting press.

The reverse rake configuration applied in the screen enables effective removal of fibrous contaminants while reducing the risk of clogging. This solution ensures stable operation of the first treatment stage. The design capacity of a single screen is approximately 650 m³/h.

ESMIL M-Comby units for fine mechanical treatment
Another key component of the delivery was the ESMIL M-Comby unit, a complete system for fine mechanical wastewater treatment.

Within one compact structure, the unit integrates a fine screen, an aerated grit chamber, a grease separator and a system for washing and compacting screenings and sand. This configuration reduces the installation footprint and simplifies operation of the entire mechanical treatment stage. The design capacity of one unit is 550 m³/h.

ESMIL-Tsurumi MDQ-502 C Multi-Disc Screw Press
As part of the sludge management system, a complete dewatering package was delivered, including the ESMIL MDQ-502 C multi-disc screw press and a polymer preparation unit.

The MDQ press is designed for dewatering challenging sludges, particularly those with elevated fat and oil content. It ensures stable operation under variable sludge parameters, while its low energy demand helps reduce operating costs. The design capacity of the press is up to 16 m³/h.

ESMIL Fiber Tube Diffusers
For the biological treatment stage, an aeration system based on ESMIL Fiber Tube Diffusers was supplied.

The diffuser design combines fine bubble efficiency with the mechanical durability typically associated with coarse-bubble solutions. This ensures effective mixing and high Standard Oxygen Transfer Efficiency (SOTE). The capacity of the delivered aeration system is approximately 950 m³/h.

24 m Diameter Radial Suction Scraper for Secondary Clarifier
For the biological treatment stage, 24 m diameter radial suction scrapers were manufactured and delivered. These units ensure uniform sludge withdrawal from the bottom of the clarifier, minimising sludge disturbance and maintaining stable operating conditions within the biological process.

Implementation Within an International Infrastructure Project
The Manas project is another Esmil Group reference in Central Asia, financed by international financial institutions. Participation in an investment of this scale confirms that ESMIL solutions are selected for infrastructure projects requiring compliance with demanding technical and organisational standards.

The delivered equipment forms part of the broader modernisation of regional water and wastewater infrastructure, aimed at improving treatment efficiency and strengthening the operational stability of the municipal system. For Esmil Group, this project further demonstrates our experience in executing complex technological investments in practice.