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Singapore's population growth and rapid economic development have led to a significant increase in solid waste, with the volume rising from 1,260 metric tons per day in 1970 to its peak of 8,741 metric tons per day in 2021. The management of this solid waste starts at residential and commercial sources, where it is collected and then sent for treatment through incineration at dedicated waste-to-energy WTE facilities.
The WTE process involves the combustion of municipal solid waste which significantly reduces its volume by approximately 90, thereby conserving valuable land space in densely populated Singapore. ing ashes are transported to the Tuas Marine Transfer Station TMTS, where they undergo further processing and are then barge-moved via specially designed tugs to Semakau Landfill for final disposal.
Singapore currently operates four WTE plants, including:
TuasOne Waste-To-Energy Plant TWTE: Commissioned in 2021 as a replacement of the older Tuas Incineration Plant that was operational until February 2022.
Keppel Seghers Tuas Waste-To-Energy Plant KSTP: This facility, which began operations in 2009 under a Design-Build-Own-Operate DBBO model, replaced the first WTE plant located at Ulu Pandan and was later divested to private sector ownership.
Senoko Waste-To-Energy Plant SWTE: Formerly the Senoko Incineration Plant, it underwent privatization in September 2009 with the name change following its transition into a WTE facility.
The use of advanced incineration technologies ensures that waste is efficiently converted to energy while minimizing environmental impact. The volume reduction from this process facilitates land conservation and ds in meeting the city-state's waste management needs sustnably.
The TMTS acts as a central hub for solid waste transportation and transfer, where waste collected from various sources is efficiently offloaded onto long barges. This method ensures an organized and hygienic approach to waste handling, significantly reducing contamination risks during transit.
Semakau Landfill, which opened on April 1, 1999, serves as the sole land-based disposal site for Singapore's solid waste. Its expansive area of around 350 hectares is strategically designed to meet Singapore’s waste management needs until at least 2035 and beyond.
Environmental measures implemented during its construction have been successful in preserving marine ecosystems surrounding Semakau Island, ensuring the protection of local coral reefs along its western coast while supporting the growth of replanted mangrove forests.
NEA is exploring the development of an Integrated Waste Management Facility IWMF to address future waste management challenges and promote long-term environmental sustnability. As a cutting-edge project, the IWMF will harness innovative technologies med at maximizing energy recovery from solid waste while also recovering valuable resources.
Notably, synergies between the IWMF and Tuas Water Reclamation Plant TWRP, which is co-located on the same site at Tuas View Basin, will enhance operational efficiency for both entities, leveraging infrastructure benefits to optimize resource use.
In summary, Singapore's approach to waste management encompasses advanced technologies like WTE plants, efficient transportation systems such as TMTS, and sustnable disposal methods through Semakau Landfill, while actively planning for future needs with the IWMF project. This comprehensive strategy ensures a balanced environmental impact minimization and resource conservation effort.
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This content is updated regularly to reflect changes in policies, technologies, and initiatives. Last updated: May 29, 2024
This article is reproduced from: https://www.nea.gov.sg/our-services/waste-management/waste-management-infrastructure/solid-waste-management-infrastructure
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