Cut leakage by 40 million litres per day
SYABAS cut water leakage by 40 million litres per day, burst frequency by 48% and improved customer service.
i2O Water’s cutting-edge technology to reduce water leakage is helping SYABAS, Malaysia’s largest water utility company, to save 40 million litres of water per day in the state of Selangor – enough to provide water for 180,000 people.
i2O Water has so far installed more than 200 of its innovative pressure management systems across SYABAS’s water distribution network.
A three-phase project
Since early 2010 i2O has been working with SYABAS and Jalur Cahaya Sdn Bhd to improve water resource availability while lowering network operating costs through the deployment of i2O controllers. This work has been delivered in three stages, with performance closely monitored and key to the success and continuation of the project work.
Phase 1: Cutting leakage by 10 million litres per day
i2O Water was met with the initial challenge to deliver a 10 Ml/d reduction in water being supplied in the Malaysian state of Selangor, an area supplied by SYABAS. For this first phase, 50 District Metered Areas (DMAs) were selected, covering 47,000 connections. The total daily flow into the 50 DMAs averaged 99.6 Ml/d, with non-revenue water calculated at 39.4%. The overall leakage reduction required was from 39 Ml/d to 29 Ml/d, representing a 25% saving.
This was exceeded; leakage fell by 10.54 Ml/d. With leakage calculated at 39 Ml/d at the start of the optimisation, this 10.54 Ml/d saving represents a 27% reduction in leakage.
Phase 2: Targetting another 10 million litres per day in leakage reduction
As a result of the success of the first phase, a second phase of a further 50 PRV control systems was initiated to follow immediately, continuing to deliver the demonstrable improvements. The target of the second phase of the project was to reduce total daily flow in the 50 DMAs by 10 Ml/d, the same rate of benefit delivery as seen in the first phase. Again, the target was beaten, with a total leakage reduction of 13 Ml/d.
Phase 3: A further 15 million litres per day reduction
Further deployment of the i2O systems across various districts of Selangor State is underway, with an additional 100 sites currently being installed. The target of the third phase of the project is to reduce total daily flow in the area by 15 Ml/d.
Benefits seen by SYABAS and JC:
- A 48% reduction in pipe bursts
- Reduction in the occurrence of new leaks
- Reduced energy costs from treating and pumping water
- Improved levels of customer service
- Fewer operational events requiring response
- Accurate and reliable network data to support decision-making
- Flow and pressure alarms generated when changes occur.
Download a PDF of the full case study to see graphs demonstrating the performance of the Advanced Pressure Management solutions in SYABAS.
Also, see a presentation made by SYABAS’ non-revenue water loss partner Jalur Cahaya at Water Loss Asia 2012.
