Water. Desalination + reuse
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PHILIPPINES • Angat River is key focus of water resource management • Asian Development Bank is active in water sector • Desalination forms part of wider water picture ADB EARMARKS $770 MILLION FOR WATER PROJECTS The Asian Development Bank (ADB) last year revealed new plans to finance $770 million of water-related projects in the Philippines to 2019. The invest - ment covers $100 million for the Metro Manila Wastewater Improvement Project, for which financing could be approved by 30 May 2018. ADB aims "to promote more innovative and transformative technology in water projects," said sustainable development and climate change department deputy director general, Amy Leung. The other works comprise, in 2017, a $70 million solid waste management project, and $100 million for Mindanao Develop - ment Programme; and in 2019, $100 million for Angat Water Transmission Improvement Pro- ject, Phase 2, and $400 million for Lake Laguna Flood Manage- ment/ Integrated Water Resource Management Programme. ADB will also support privately- financed projects. The upgrade of La Mesa-2 will enable the plant to handle high raw water turbidity up to 2,000 NTU (nephelometric turbidity units); will convert the existing, Pulsator pre-treatment technolo - gy into lamella clarification; and will modify a single layer sand filtration to dual media filtration. The award follows Wabag's successful refurbishment and upgrade of Putatan water treat - ment plant, capacity 150,000 m3/d, with its filtration tech- nology. Further, Manila Water Company has secured Wabag to construct and operate a pilot for the Philippines' first septic waste-to-energy project. MACTAN ROCK INDUSTRIES EXPANDS DESAL PRODUCTION Mactan Rock Industries of the Philippines secured a PHP 500 million ($10 million) loan from the Development Bank of the Philippines last year, to expand its production of desalinated water. The investment is for fa - cilities in Mactan Economic Zone (MEZ) 1, MEZ 2, and at Mactan- Cebu International Airport, from 5,000 to 25,000 m3/d. Demand for desalinated water is rising fast in the Philippines as industry and tourism develops. Macon Rock Industries is one of the county's largest desalination providers, operating a 22,000 m3/d seawater facility in Cebu City, as well as a number of smaller brackish and seawater water facilities. SINGAPORE • R&D is central to Singapore's approach to water management • Efficient processes with a small footprint are vital to water future • Lessons learned will be applied to a full scale water recycling plant ULU PANDAN'S NOVEL TECH SCOOPS AWARD PUB's Ulu Pandan wastewater treatment demonstration plant, set up to test advanced used wa- ter treatment processes before full deployment in the future, scooped the 2018 Global Water Award for Water/Wastewater Project of the Year. The demo plant, which began operating in 2017, was jointly developed by PUB and a joint venture of Black & Veatch and Aecom. The project is to test and validate advanced wastewater treatment technologies, and to learn about potential risks before incor - porating the technologies at a larger scale, at the future Tuas Water Reclamation Plant (WRP). Tuas WRP is to be con - structed as part of Deep Tunnel Sewage System (DTSS) Phase 2, a project intended to meet Singapore's used water col - lection, water treatment, and disposal needs. When complete in 2025, Tuas WRP will be the largest membrane bioreactor (MBR) facility in the world, with 30 per cent more compact foot- print compared to conventional plants. The Ulu Pandan demo plant features a new combination of treatment processes, including space-efficient lamella primary settling tanks and a membrane bioreactor (MBR) system. These features shorten the process of wastewater treatment, reduce energy use, maximise biogas production, and reduce plant footprint. The 12,500 m3d plant, housed at Ulu Pandan WRP, incorporates automation control to reduce manpower require - ments "Research and development is the key driver to Singapore achieving a robust management system across the entire water loop and PUB continues to in - novate to increase the efficiency of water and wastewater treat- ment. This plant has enabled us to validate and set new standards for wastewater treat- ment, while fulfilling our need to bring down energy use, keep things compact in land-scarce Singapore, and reduce reliance on manpower. The success of the demonstration ensures that the future Tuas WRP, and its integrated NEWater factory, can contribute to increasing Sing - pore's overall water recycling rate," said PUB assistant chief executive, future systems and technology, Harry Seah. The Black & Veatch and Aecom joint venture is programme manager for DTSS Phase 2 and consult - ant for Ulu Pandan wastewater demonstration plant. Mix of needs spells potential for tech providers A willingness to try out new technologies is a defining characteristic of the region, as is industrial wastewater treatment and recycling as way to protect natural sources This plant has enabled us to validate and set new standards for wastewater treatment Harry Seah, PUB assistant chief executive, future systems and technology 22 In Site June 2018 Water. desalination + reuse