The Institution of Engineers Malaysia (Southern Branch) - Past Activity: Half-day Talk on “Managing Beyond Stormwater Treatment"

Continuous Deflective Separation (CDS) is an innovative screening technology for the separation of solids from liquid streams. Unlike direct screening, CDS utilizes the principle of indirect screening where the particles are carried by the flow across the face of the screen. This, in conjunction with hydraulic balancing across the screen, delivers a process capable of removing solids from high flows of water and wastewater. The technology utilizes a cylindrical screen with tangential inlet for the fluid above the screen and a sump below the screen. The tangentially introduced flow rotates inside the screen, keeping the screen surface free of solids while a small proportion of the fluid passes through each of the apertures in the screen. Solids are retained inside the screen on the rotating column of fluid if neutral density, sink into the sump if settle-able, or float to the surface of the fluid in the unit. Characteristics of the technology include non-blinding operation, high loading rates (up to 32 m³/s), capture performance that is independent of flow rate, and low operation and maintenance requirements. The technology has also been adapted to operate in raw sewage. There are also units in use for screening of coolant, food processing, potable water intakes, coal fines separation and wash down yards. Today, the range of products include surface and rainwater treatment device, sewer mining process for water re-use, SMART water plant to class A water re-use, etc.These units remove solids including man made litter, organic material (leaves, twigs, etc.), and sediments from the influent.

Programme Tentative

About the Speaker

Mr Yale Wong has studied Mechanical Engineering in Singapore and obtained a Masters in Business Administration from Brunel University, Henley Management College in UK. He is a UK Incorporated Engineer and Chartered Marketer. He was the Regional Manager of McConnell Dowell International and John Laing International Regional Offices since his transfer from overseas to Malaysia in 1980. Yale is experienced in many forms of construction and project management gained through major projects such as Turnkey Nucleus Hospitals, Airports and Power Station which John Laing undertook in JV with YTL Corporation. He opted out from involving in major constructions in 1995 to start his own business with major focus on environmental technologies by founding the first company, Vacuum Utility Services to market Vacuum Sewerage Collection technology, leading to a success of the first vacuum system to be built in Malaysia in 1997. Since then, he got involved as Director of Sistem Vakuum Sdn Bhd which is the first Bumiputra Company which has built the most numbers of vacuum systems in Malaysia. He was also marketing the CDS non-blocking Stormwater Treatment Technology way before the New Stormwater Manual (MASMA) was introduced into the country, to Putrajaya and JPS through ‘Love our Rivers’ campaign with exhibitions alongside those of other NGO’s such as the WWF and Wetland International.

Participant Fees: RM 20.00 (Student members)

RM 30.00 (IEM Graduate members below 30 yrs.old)

RM 40.00 (IEM Corporate Members)

RM 70.00 (Non-IEM members)

Registration will be on a first-come-first-serve basis. Kindly return the Reply Slip to the IEM (SB) office before 16^th May 2011 together with a non-refundable cheque for the participant fees made payable to The Institution of Engineers, Malaysia (Southern Branch). Alternatively, you could bank-in the participant fees into the Institution’s Maybank Current Account (No. 5-013920-15708), and to facsimile both the Bank-in and Reply Slips to the Institution. The Institution requests all members co-operation in ensuring fees are paid in advance to the seminar. Please also be reminded that fees will not be refunded to absent participants who have paid, and to also note that all reservations must be paid despite participant cancellations. Thank you for your continuous support of the Institution.

Head of Sub-Committee on Seminar and Technical Talk, IEM (SB)

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