Singapore will release 5 billion Singapore dollars of water and waste

PUB and the National Environmental Agency (NEA) of Singapore will release more than S $ 5 billion ($ 3.7 billion) worth of civil engineering, mechanical engineering and Electric for Tuas Nexus, an integrated wastewater treatment plant.

Phase 2 Deep Tunnel Sewer System (DTSS) Project – The Super Wastewater System at the Heart of the Water Management Strategy Singapore

Works include 11 calls for WRP construction bids), and $ 3 billion ($ 2.2 billion) contracts for engineering, procurement and construction work. Construction (EPC), and a construction contract, on the NEA's Integrated Waste Management Facility (IWMF). 9659005] The first tender for Tuas WRP came in May 2018 covering the support infrastructure, utilities, and an emissary system. The second call for tenders, expected in the fourth quarter of 2018, concerns an influential pumping station, consisting of five wells up to 80 meters deep, intended to evacuate the wastewater from the deep tunnels and pump them to the units. treatment.

of an industrial liquids processing module, is scheduled for early 2019.

Eight other contracts for work on Tuas WRP will be offered from 2019.

The IWMF will be built in two phases. The first phase includes a waste incineration capacity of 2,900 tonnes per day, to be completed in 2023, as well as facilities for material recovery, food waste treatment and sludge incineration, to be completed. in 2024. Prequalification for the first phase of the IWMF bidding calls are expected in July 2018 and the next auction is scheduled for January 2019.

In the second phase of the IWMF. IWMF, which is expected to be completed in 2027, the incineration capacity will reach 5,800 tons per day and the heat recovered the incineration process will be used to produce electricity for the purpose. operation of both plants and for the network.

A call for tenders for a 230 kV electrical substation for Tuas Nexus will take place in December 2018.

Construction of both facilities is expected to begin in 2019.

Tuas Nexus aims to integrate Water and waste treatment process, by incinerating sludge from Tuas WRP to recover energy, reduce carbon emissions and reduce the footprint of the plant.

Tuas WRP primary sedimentation tanks; two membrane bioreactor (MBR) systems to treat segregated streams of wastewater entering the deep tunnels of municipal and industrial users; and a thermal hydrolysis process to increase biogas production and energy recovery, and reduce sludge.

One of the MBR systems will treat high-strength industrial wastewater for reuse by industrial customers on Jurong Island and Tuas. to become the largest MBR facility in the world, processing 800,000 m3 / d of water when it will be completed in 2025.

IWMF will integrate the treatment of incinerable waste, recyclable household waste , food waste and sludge from Tuas WRP; the goal is to improve the recovery of resources and energy, and reduce the environmental footprint.

PUB chooses CH2M to develop detailed designs for the Tuas project (February 2017)