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Consulting ENGINEERS since 1963

The Province Bursa is located in the North –Western part of Turkey and situated along the Marmara Sea and has a total population of around 3.2 million. The Bursa Sewerage Project, 3rd Stage, has been developed to contribute to the improvement and the protection of the water quality of the Marmara Sea by reducing the pollution loads. 6 new wastewater treatment plants (WWTP) and a sound sludge concept for these 6 WWTP and further 4 existing WWTP in Bursa city (2.6 million inhabitants) shall contribute to achieve the protection of the Marmara Sea.

The consulting contract consists of two major working packages:

Package 1: Design and construction of 6 new wastewater treatment plants (WWTP). This package consists of 3 works contracts:
  • Construction of Kurşunlu, Gemlik and Mudanya WWTPs
  • Construction of Küçükkumla, Akçalar and Nilüfer WWTPs
  • Construction of two deep sea outfalls in Kurşunlu and Küçükkumla WWTPs
Package 2: Design of a new centralised advanced sludge treatment facility (ASTF) at WWTP Doğu

The estimated total project cost is 60 million EUR.

Services Provided

Consulting services are required for preparation of designs and tender documents, assistance to PEA (BUSKİ) in tendering and contracting and construction supervision. The following services are provided by the German-Turkish consultancy association IGIP-IVAA-TEMPO, of which IGIP is the lead member

For both packages: WWTP and ASTF
  1. Overall project management including contract management, staff allocation, administration, monitoring and evaluation, reporting, etc.
  2. Review of existing studies and documents
  3. Geodetic and geotechnical site surveys and investigations, wastewater measurement campaigns, marine surveys)
  4. Preparation of conceptual designs and study of variants
For package 1: WWTP
  1. Preparation of final designs for 6 WWTPs
  2. Preparation of detailed designs for two deep see outfalls
  3. Environmental impact assessment for project measures
  4. Support to PEA in obtaining legal permissions
  5. Preparation of tender documents for 3 works contracts (WWTPs: FIDIC Yellow Book, sea outfall: FIDIC Red Book)
  6. Assistance to BUSKİ in tendering and contracting of 3 works contracts
  7. Supervision services for the construction of 6 WWTPs and 2 sea outfalls according to FIDIC Conditions of Contract
  8. Technical assistance to BUSKİ and its PIU in form of practical training in project management and management of the WWTPs during the first year of plant operation; training of operational staff

Facts and Figures

Package 1: Design & Construction of 6 wastewater treatment plants (WWTP) in Bursa Province

 Total design population:

 in 2025: 458,000 PE in 2036: 572,000 PE

 Treatment process for all 6 WWTPs:  

 Activated sludge process with aerobic sludge stabilization

 Sludge treatment:   

 Mechanical thickening, sludge storage and dewatering by centrifuges

 Effluent quality:

  As per European Directives 91/271/EEC and 2006/7/EC

Package 2: Design of Advanced Sludge Treatment Facility (ASTF)

Based on the results of the Consultant’s conceptual design and the discussion of alternative solutions, BUSKİ has decided to implement a single-stage sludge mono-incineration plant at WWTP Doğu comprising:

  • 2-line drying facility for partial drying between 45% DS (minimum) up to 60% DS, combined with 2-line fluidised bed incineration plant; capacity of each line: 120,000 m³/y dewatered sludge (24% DS); 1 co-generation unit (steam turbine)