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Plans for Singapore’s newest water reclamation plant gathers pace

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Singapore's national water agency has appointed the China State Construction Engineering Corporation to construct the industrial liquids modules for the Tuas Water Reclamation Plant.
This will treat industrial used water channelled to Tuas WRP via the deep sewer tunnels.
The contract, which is valued at S$237.6 million (€150 million), includes the civil, structural and architectural works for two ILMs, which will have a treatment capacity of 150,000m3 per day of industrial used water, the equivalent of 60 Olympic-sized swimming pools of water.
Tuas WRP, a key component of the Public Utilities Board (PUB) DTSS Phase 2 project, will be equipped to receive both industrial and domestic used water streams from two separate deep tunnels for treatment.
The ILMs adopt the membrane bioreactor system by combining the conventional Modified Ludzack-Ettinger process with membranes for solids separation.
This integration of membranes enables used water to be treated using less space and fewer steps compared to conventional systems, in addition to producing a higher quality treated effluent.
The treated effluent from the ILMs will be further purified to industrial water and sent back to the industries for reuse.
When completed, this will be the first time that PUB is reclaiming industrial used water for reuse and is a significant step forward in boosting our capability to reclaim and recycle water.
Tuas WRP will have an initial treatment capacity of 800,000m3 per day. The plant will be co-located with the National Environment Agency's (NEA) Integrated Waste Management Facility (IWMF) to collectively form Tuas Nexus, which integrates used water and solid waste treatment processes to harness various synergies that will improve overall plant performance and optimise land use.