Quiz 1 - Water Supply1

Authority/Agency that controls the quality of water in Malaysia?

• Kettha (Kementerian Teknologi Hijau dan Air)

• Petra (Kementerian Peralihan Tenaga dan Transformasi Air)

• MCMC (Suruhanjaya Komunikasi dan Multimedia Malaysia)

Regulator for water distribution?

• Syarikat Bekalan Air (Syabas)

• Jabatan Bekalan Air Malaysia (JBA)

• Suruhanjaya Perkhidmatan Air Negara (SPAN)

Basic principle used for water treatment are:

• Storage - Sedimentation - Filtration

• Storage - Filtration - Disinfection

• Storage - Disinfection - Filtration

What is the process happen during disinfection?

• Screening - Aeration - Flocculation

• Rapid sand filter - pH balance - Chorination

• Flouridation - Chlorination - pH balance

During the process of storage for clarification of water treatment, SCREENING is;

• the process removing suspended matter from water

• the process of sendimentation

• the process of aeration

Flocculation is the process of...

• aluminums will act as thickening agent that allows small particles such as clay, colloid, gel and emulsion to combine and form larger particles (flocculants).

• fine focculants combined to form larger and heavier flocculants so as it settle easily during settling process

• removing suspended solid from water. Time required  for the solid to settle will depend on the size of the flocculants - longer time required for smaller flocculants

Balancing tank is...

• Supplies water to the distribution areas such as residential or industrials areas

• Store large quantity of water with min. 450 m³ and maximum 9000 m³ respectively.

• Store treated water at treatment plant before it is channeled and distributed to consumers through balance and services tanks

Surface reservoir is also call as...

• Ground reservoir

• Overhead tank

• Circular tank

Methods of distribution system;

• Gravity distribution, pump system, combination

• gravity and pump system

• gravity system

Advantage of Gravity water tank system:

• reliable water supply from higer level to lower level

• control the pressure and speed of water

• water supply interrupted when there is interruption in the electricity supply