Consulting Services for Procurement and Implementation Assistance for the FGD-Flue Gas Desulphurization Construction Project for Ugljevik TPP, Bosnia and Herzegovina

Client: MH Elektroprivreda Republike Srpske, EPRS a.d. - Trebinje, Bosnia and Herzegovina
Name of partner(s): Hamon Enviroserv GmbH, Germany - Main Contract holder
Start/Completion Date: January 2012-December 2021
Project description: Council of Ministers of Bosnia and Herzegovina has agreed financing from Japan International Cooperation Agency (JICA) toward the cost for construction of the Flue Gas Desulphurization Plant for 300 MW Ugljevik Thermal Power Plant. TPP Ugljevik burns brown coal from an open pit coal mine approximate 4-5km away. The coal is high in sulphur (up to approximate 5-6%) and has a LHV of 10,000 – 13,000 kJ/kg. Combustion of such coal results in a high concentration of sulphur dioxide (SO2) in the emitted flue gases. The JICA financed the supply, installation and commissioning of the FGD plant installation at Ugljevik TPP. This assignment was to ensure the timely and successful tendering, contracting, construction, installation, commissioning and operation of the FGD plant at TPP Ugljevik thereby contributing to the improvement of the environmental protection in BiH and complying with EU pollution regulations (LCP and IED Directives). As the SO2 concentration in flue gas before construction of FGD was between 20,000-25,000 mg/Nm³, the FGD plant has objective to reduce the SO2 concentration below 200 mg/Nm³ (99.2%). Wet limestone-gypsum FGD technology was chosen as the most suitable to reduce the SO2 concentration in line with the EU directives limits. The FGD system consists of connecting flue gas ducts, booster fans, system for limestone handling, wet ball mills, absorber, wet stack, system for dewatering of gypsum and dry gypsum silo. During 2019 JICA approved additional funds for the construction of belt conveyer for transportation of gypsum, flying ash and slag from gypsum silo and existing ash/slag silo to the landfill in the open pit coal mine landfill in order to improve in more economically and environmentally viable way the disposal of the co-products of the TPP and FGD operation process. Belt conveyer is cca 3,5 km long and is consisting of 5 transfer stations, 5 medium voltage substations and autonomous DCS system. Capacity of belt conveyer is 220t/h (cca 1 million tonnes/year) and it is covered along entire route from power plant to the transfer station no.5 (3,3 km) due to prevention of negative environmental impact from unfavourable weather conditions (rain, snow, wind). SEEC have provided assistance to the Client to enable cost effective and efficient procurement and realization of the project, which included:

• Preparation of Pre-Feasibility Study with Conceptual Design for the purpose of functional tendering;
• Emission measurements of pollutants on TPP Ugljevik: particle matters and gases (SO2, NOx, CO, O2, CO2);
• Imission Study - analyses and comparison of the results of the air quality calculations in the surrounding area of TPP Ugljevik for all 4 variant of flue gas discharge after installation of the FGD plant with the results of air quality calculation for existing situation in order to determine if the expected concentrations of the pollutants (SO2, NOx and PM) will increase or decrease after installation of FGD plant;
• Preparation of prequalification documents using JICA standards and in accordance with JICA Guidelines;
• Preparation of tendering documents using JICA standard tender documents and in accordance with JICA Guidelines;
• Assistance with tender issuance and during the pre-bid meeting and clarification requests in compliance with JICA Guidelines;
• Assistance with evaluation of applicants for prequalification in accordance with JICA Guidelines;
• Assistance with evaluation of Tenders for the FGD plant in line with JICA Guidelines;
• Assistance with Contract negotiations and Contract award;
• Review of all project documentation including design documentation (Preliminary, Detailed and As-Built Design);
• Attendance to the Factory Acceptance Tests (FAT);
• Implementation assistance (construction supervision; supervision of all activities during erection, commissioning, site testing, etc.) for all engineering disciplines mechanical, civil, electrical, control and instrumentation including DCS and SCADA systems;
• Quality and cost control for the implementation of the Project,
• Assistance in the Project management and monitoring,
• Regular monthly reporting to the Client and JICA;
• Assistance during Guarantee Period (Defects Notification Period).
• Final Report preparation.

All activities on the construction, commissioning and the trial run of the FGD plant have been successfully finalized and Operational Acceptance Certificate (OAC) was issued in October 2020. Services for support in DNP continued until Final Report was issued in December 2021.