Konsortium ABASS Sdn Bhd

The Sungai Semenyih Water Supply Scheme implemented by the Selangor State Government supplies clean water to South-West of Kuala Lumpur, Petaling Jaya, Shah Alam, Klang, Putrajaya, Cyberjaya, Sepang, Puchong, Seri Kembangan, Bandar Baru Bangi, Kuala Langat and the surrounding areas.

In the year 2001, Konsortium ABASS Sdn Bhd was awarded a 30 years concession to operate and maintain the Sungai Semenyih Scheme.

Components of the Scheme include:

• Semenyih Dam in Hulu Semenyih
• Intake Sump and Raw Water Pumping Station in Jenderam Hilir
• Water Treatment Plant in Precint 19, Putrajaya
• Lake Water Transfer Scheme (WT1) in Jenderam
• Semenyih Dam Water Transfer Scheme (WT2) in Hulu Semenyih

In 2004 ABASS was awarded the following certificates:

• ISO 9001 – 2000 – Quality Management System by Lloyd’s Register
• MS ISO/IEC 17025:2005 – Lab Management System by the Department of Standard Malaysia under the Malaysia Laboratories Accreditation Scheme

Sludge Treatment Facility

Breaking the traditional norm of sludge disposal for water treatment plants in Malaysia, ABASS has constructed a modern sludge treatment facility at the Sungai Semenyih Water Treatment Plant, with the objective of protecting the environment under the Environmental Quality (Sewage and Industrial Effluents) Regulations.

With a capacity of 600 metric tones per day (at 35% dry solid), the Sungai Semenyih sludge treatment facility is the biggest sludge treatment in Malaysia for water treatment process. The sludge produced from the water treatment process is dewatered mechanically using six units of centrifuge decanters. The sludge treatment facility is employing the “zero discharge” concept, where all the liquids recovered from the various stages will be recycled back into the water treatment plant.