Helping Singapore meet its future waste disposal needs
Singapore’s National Environment Agency (NEA) is responsible for sustaining a clean environment, promoting sustainability and increasing resource efficiency. In late 2017, the NEA hired RSK company Binnies, in a joint venture with AECOM, on a contract to undertake multidisciplinary consultancy services concerning the development of a flagship Integrated Waste Management Facility (IWMF).
Acting as the owner’s engineer for the project, the Binnies–AECOM joint venture and its technical partner Ramboll prepared the preliminary design and managed all subsequent tenders and contracts. During stage B, in addition to project management and supervising building and commissioning activities, the Binnies–AECOM scope of work includes supporting contractors in obtaining all approvals, handing over the project to the NEA and managing the defects liability period.
One of the primary goals of the project is maximising energy and resource recovery within the plant, which will provide Singapore with an affordable waste management system. The proposed flexible modular design by the Binnies–AECOM team effectively future-proofs the facility to cater for future expansions or upgrades to accommodate new technologies and more stringent emissions standards.
The IWMF comprises four facilities: waste to energy, materials recovery, food waste treatment and sludge incineration. Combined, they will process Singapore’s incinerable waste, household recyclables, food waste and dewatered sludge from the nearby Tuas Water Reclamation Plant. The state-of-the-art IWMF is an essential element in meeting the country’s future waste disposal aims and is an integral part of Singapore’s solution for environmental sustainability.
The innovative project involves integrating the Tuas Water Reclamation Plant (TWRP), when operational. The plant is run by the Public Utilities Board (PUB) and provides opportunities for both the NEA and PUB to benefit from the water–energy–waste nexus. For example, food waste will be sent from the IWMF to TWRP for co-digestion with used-water sludge to produce more biogas; biogas from TWRP will be sent to the IWMF to further improve its energy output.
Image via PUB.