Singspring PPP Project Sheet
1
Seawater intake The SingSpring Plant’s DAFF combines and integrates the separate DAFF units and sand filtration units resulting in a smaller footprint The 1 st Pass RO consists of 10 trains of single stage RO membranes. Each train has 177 pressure vessels each containing 7 membrane elements. The 2 nd Pass RO consists of 5 trains of two stage RO membranes. Each train has 130 pressure vessels each containing 7 membrane elements. Close up view of the energy recovery system Post-treatment Chemical Building Surge Vessels Aerial view of the plant Desal H 2 O Toast to the nation Administrative and Control Building Signing Ceremony In January 2003, PUB awarded the contract for the supply of desalinated water under a Design-Build-Own-Operate (DBOO) scheme to SingSpring Pte Ltd, a subsidiary of Hyflux Ltd. Under the contract, SingSpring is to supply up to 136,380 m 3 per day (30 MiGD) of desalinated water to PUB for 20 years. This is equivalent to 55 olympic pools and represents some 10 percent of Singapore’s current water needs. The SingSpring desalination plant is the first project to be awarded under the Private-Public Partnership (PPP) approach in Singapore. Construction of the desalination plant commenced in January 2004 and the plant was completed some three months ahead of schedule. The plant was officially opened by Prime Minister Lee Hsien Loong on Sept 13, 2005. Located at 90 Tuas South Ave 1 on a 6-hectre L-shaped plot of land, the $200 million project is the largest seawater Reverse Osmosis (RO) desalination plant opened to date. SingSpring Desalination Plant At Tuas The SingSpring Desalination Plant marks the launch of Singapore’s fourth National Tap – desalinated water. The western part of Singapore will receive desalinated water blended with the treated water from its current Chua Chu Kang Waterworks – Lim Chu Kang, Jurong, Tuas, Jurong Island, Bukit Batok, Clementi, West Coast, Commonwealth and Buona Vista. Desalinated Water Starts Flowing First Public Private Partnership (PPP) The project financing for the plant was arranged by five international banks led by DBS Bank Ltd, ING Bank, KBC Bank, Standard Chartered Bank and Norddeutsche Landesbank Girozentrale. The loan facility comprises a senior debt facility of up to S$158.5 million to fund 80 percent of the project’s costs, and a standby loan facility of up to S$6.5million to fund 70 percent of any cost overrun. With a loan tenor of 18 years, this landmark project was hailed by Euromoney as Asia Pacific Water Deal of the Year in 2003. Project Financing At the SingSpring Desalination plant, seawater goes through three main processes of treatment, pre-treatment followed by reverse osmosis and lastly post treatment process, before the water is pumped into PUB’s potable water distribution main. The Desalination Process After the RO process, post-treatment adds back minerals and fluorides to balance the pH of the water, so that the drinking water quality meets the PUB and World Health Organization drinking water quality standards, ready for consumption. Post-treatment Reverse Osmosis (RO) forms the core technology of the SingSpring Desalination Plant. A 2-pass RO system was chosen for the SingSpring Plant, to ensure that treated water always complies with PUB’s drinking water quality standards. The pre-treated seawater is pumped at high pressure through semi-permeable reverse osmosis membranes. No bacteria, viruses, chemicals or dissolved minerals can pass through the membranes. 45 percent of the influent seawater is recovered from the 1 st Pass RO, for treatment in the 2 nd Pass RO. The 2nd Pass RO further treats the water and recovers 90 percent of the water. An energy recovery system is employed to fully utilise the residual energy from the 1 st Pass RO. After the RO stage, the RO reject stream is discharged back into the sea through an outfall that extends 120 metres. Reverse Osmosis Sea water is taken in through a submerged intake culvert and is passed through filter screens which remove debris. It is then pumped to the Dissolved Air Flotation Filtration (DAFF) units to clarify and pre-treat the water before it goes through reverse osmosis. At the In-filter DAFF, contaminants such as oil, grease and suspended solids are removed in a flotation process in which dissolved air assists the natural flotation effect induced by coagulation. The water then passes through a sand filtration process to remove finer suspended solids and silt. The pre-treated seawater is then sent to the Reverse Osmosis (RO) stage. Pretreatment PT610-120-Internal-tan.ai 10/25/06 5:22:28 PM PT610-120-Internal-tan.ai 10/25/06 5:22:28 PM
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Transcript of Singspring PPP Project Sheet
Seawater intake The SingSpring Plant’s DAFF combines and integratesthe separate DAFF units and sand filtration units resulting in a smaller footprint
The 1st Pass RO consists of 10 trains of single stage ROmembranes. Each train has 177 pressure vessels eachcontaining 7 membrane elements.
The 2nd Pass RO consists of 5 trains of two stage ROmembranes. Each train has 130 pressure vessels eachcontaining 7 membrane elements.
Close up view of the energy recovery system Post-treatment Chemical Building Surge VesselsAerial view of the plant
Desal H2O Toast to the nation
Administrative and Control BuildingSigning Ceremony
In January 2003, PUB awarded the contract for the supply of desalinated water under a Design-Build-Own-Operate (DBOO) scheme to SingSpring Pte Ltd, a subsidiary of Hyflux Ltd.
Under the contract, SingSpring is to supply up to 136,380 m3 per day (30 MiGD) of desalinated water to PUB for 20 years. This is equivalent to 55 olympic pools and represents some 10 percent of Singapore’s current water needs.
The SingSpring desalination plant is the first project to be awarded under the Private-Public Partnership (PPP) approach in Singapore. Construction of the desalination plant commenced in January 2004 and the plant was completed some three months ahead of schedule.
The plant was officially opened by Prime Minister Lee Hsien Loong on Sept 13, 2005. Located at 90 Tuas South Ave 1 on a 6-hectre L-shaped plot of land, the $200 million project is the largest seawater Reverse Osmosis (RO) desalination plant opened to date.
SingSpring Desalination Plant At Tuas
The SingSpring Desalination Plant marks the launch of Singapore’s fourth National Tap – desalinated water.
The western part of Singapore will receive desalinated water blended with the treated water from its current Chua Chu Kang Waterworks – Lim Chu Kang, Jurong, Tuas, Jurong Island, Bukit Batok, Clementi, West Coast, Commonwealth and Buona Vista.
Desalinated Water Starts FlowingFirst Public Private Partnership (PPP)
The project financing for the plant was arranged by five international banks led by DBS Bank Ltd, ING Bank, KBC Bank, Standard Chartered Bank and Norddeutsche Landesbank Girozentrale.
The loan facility comprises a senior debt facility of up to S$158.5 million to fund 80 percent of the project’s costs, and a standby loan facility of up to S$6.5million to fund 70 percent of any cost overrun.
With a loan tenor of 18 years, this landmark project was hailed by Euromoney as Asia Pacific Water Deal of the Year in 2003.
Project Financing
At the SingSpring Desalination plant, seawater goes through three main processes of treatment, pre-treatment followed by reverse osmosis and lastly post treatment process, before the water is pumped into PUB’s potable water distribution main.
The Desalination ProcessAfter the RO process, post-treatment adds back minerals and fluorides to balance the pH of the water, so that the drinking water quality meets the PUB and World Health Organization drinking water quality standards, ready for consumption.
Post-treatmentReverse Osmosis (RO) forms the core technology of the SingSpring Desalination Plant. A 2-pass RO system was chosen for the SingSpring Plant, to ensure that treated water always complies with PUB’s drinking water quality standards. The pre-treated seawater is pumped at high pressure through semi-permeable reverse osmosis membranes. No bacteria, viruses, chemicals or dissolved minerals can pass through the membranes.
45 percent of the influent seawater is recovered from the 1st Pass RO, for treatment in the 2nd Pass RO. The 2nd Pass RO further treats the water and recovers 90 percent of the water. An energy recovery system is employed to fully utilise the residual energy from the 1st Pass RO.
After the RO stage, the RO reject stream is discharged back into the sea through an outfall that extends 120 metres.
Reverse OsmosisSea water is taken in through a submerged intake culvert and is passed through filter screens which remove debris. It is then pumped to the Dissolved Air Flotation Filtration (DAFF) units to clarify and pre-treat the water before it goes through reverse osmosis.
At the In-filter DAFF, contaminants such as oil, grease and suspended solids are removed in a flotation process in which dissolved air assists the natural flotation effect induced by coagulation. The water then passes through a sand filtration process to remove finer suspended solids and silt.
The pre-treated seawater is then sent to the Reverse Osmosis (RO) stage.
Pretreatment
PT610-120-Internal-tan.ai 10/25/06 5:22:28 PMPT610-120-Internal-tan.ai 10/25/06 5:22:28 PM
