"Instrumental or mechanical science is the noblest and, above all others, the most useful."

-Leonardo da Vinci

A day will come, whereby machines and robots permeate each and every aspect of our lives - but it is not this day. Today, we humans utilize machines for their strength and ability to operate without rest; commonly utilized for repetitive and hazardous circumstances, the programming and integration of machinery into whole systems is something Smitech specializes in.

The Changi Water Reclamation Plant is among the largest in the world today, it treats an approximate 180 million gallons of wastewater transmitted by the Deep Tunnel Sewage System (also a project Smitech was involved in) daily, this which is then either resupplied to the NEWater plants for further treatment, or let out into the Singapore Straits 40 meters below sea level.

At Changi Water Reclamation Plant, PUB has designated Smitech as the main contractor to carry out works for the Membrane Bioreactor. A project which revolves around the usage of micro-organisms to treat wastewater, the efficiency rate is compounded by the implementation of Polymeric & Ceramic Membranes (to maintain the micro-organism ratio at 4-5 times those of conventional systems). For a seemingly organic process, the magnitude of the machinery required to operate the entire plant is tremendous - we are moving 180 million gallons of water around the plant daily.

Usage of such ultra-filtration membranes also acts as a precaution against spikes in the wastewater composition – variation in wastewater composition, salt/oxygen concentrations can affect the entire process; the membranes serve as the last line of defence to withhold biomass and other suspended solids.



Moving backwards right to the start of the supply chain, one of Singapore's sources for freshwater is none other than our reservoirs (17 in total). The Punggol Serangoon reservoir is Singapore’s latest addition to the family, boasting of a catchment area of approximately 5,500 hectares, or roughly 1/12 of the area of Singapore.

As the first phrase of our water supply chain, water is subsequently transported via pumps and turbines into a nearby water treatment plant for processing. Smitech was the appointed contractor for the entire Mechanical & Electrical installation of the turbines (3 units of 1.2MW turbines) and other assorted works required for facilitation of water movement.

With a flawless track record of projects in almost every phase of water and wastewater networks in Singapore, Smitech is proud to among one of Singapore’s most trusted M&E contractors.