gauff.com – Feasibility Study for the development and optimization of wastewater management in the City of Bandung in Indonesia
Bandung Metropolitan Area (BMA) in Western Java with a population of 9.6 million is the second largest metropolitan area in Indonesia. The core city of BMA is Bandung City. In 2015, 67% of the 2.5 million population of Bandung City was connected to either a centralized sewerage system with WWTP (off-site-systems; 58%) or decentralized systems based on septic tanks (on-site-systems; 42%). The remaining third of the population is not connected to any system at all.
Over the last years Bandung City experienced a rapid economic growth driven by mainly textile industry in the area and service-based economic activities including 80 higher education institutions. However, the city’s sewerage infrastructure did not keep pace. Primary and secondary sewers are often not connected to main trunk sewers and discharge directly into heavily polluted Citarum River and its tributaries without any treatment. Septic sludge is regularly discharged into the sewerage system causing clogging of pipes. Finally, Bojongsoang WWTP has reached its design capacity and end of its lifespan.
Therefore, the Ministry of Public Works and Housing (MoPWH) identified improvement and expansion of the sewerage system in Greater Bandung as a priority measure. In 2015 KfW Development Bank successfully assessed the “Sewerage Development and Optimization for Greater Bandung” project to be financed through a loan with a volume of 100 million EUR.
The following measures to be implemented under the project have been tentatively defined:
- Extension and optimization of the existing central sewer system (off-site),
- Conversion from a combined sewer system to separated sewer systems in some areas,
- Rehabilitation and extension of septic sludge treatment facilities (on-site),
- Procurement of maintenance equipment such as flushing trucks and sludge tankers,
- Rehabilitation/optimization of Bojongsoang WWTP,
- Construction of a new sewerage network in parts of Bandung Regency and connection to the Bojongsoang WWTP.
In July 2018, gauff.com was awarded the contract for preparation of the Feasibility Study under the “Sewerage Development and Optimization for Greater Bandung” project. The FS is aiming at examining overall project aims and impacts, and develop the proposed project in terms of technical, economic, financial, environmental, social, regulation and institutional aspects adapted to the needs of the growing population. The FS was started in August 2018. The project duration is estimated to be 11 months.