What is the step of raw water treatment?
The raw water is delivered to the headworks of the water treatment plant where the first of 5 major unit water treatment processes start the treatment to make the water safe to drink. The 5 major unit processes include chemical coagulation, flocculation, sedimentation, filtration, and disinfection (described below).
How is water treated in Malaysia?
In Malaysia, extensive use has been made of primary treatment systems such as communal septic tank’s and Imhoff tanks and unreliable low cost secondary systems such as oxidation ponds. In addition, large urban areas utilise Individual Septic Tanks (IST).
What is second step of raw water treatment?
The second step is called flocculation, in which larger particles called flocc form after coagulation. Sedimentation occurs next when the heavy flocc settles to the bottom and is cleared away.
What is the second step of raw water treatment?
What are the 3 stages involved in treating water?
Water treatment
- Sedimentation – the water is stored in a large tank or a reservoir.
- Filtration – the water is sprayed onto specially-prepared layers of sand and gravel.
- Chlorination – chlorine gas is injected into the water to sterilise it.
What should raw water intakes remove?
Usually, when an industrial plant draws in the water from their surface water source, they pull it in (with pipes or by gravity) through a mesh screen or grate to eliminate the larger objects, such as twigs, leaves, and fish.
What is the process of wastewater treatment in Malaysia?
Wastewater treatment refers to the process of converting the wastewater into bilge water that could be discharged back into the environment so that it does not get wasted. Wastewater treatment Malaysia and other parts of the world are popularizing themselves and the same are urging people to save and conserve water.
Which is the best water treatment system in Penang?
PBAPP utilises conventional water treatment processes to convert raw water into potable (drinkable) water that is supplied to all water consumers in Penang. Conventional water treatment is still the most cost-efficient option; and our “product” complies with the National Water Guidelines for Drinking Water set by the Ministry of Health, Malaysia.
Where does Malaysia get its fresh water from?
As about 98% of Malaysia’s fresh water supply comes from surface water, proper sewage treatment is important. Raw surface water becomes contaminated as a result of excessive and indiscriminate discharge of waste water directly from households or factories into drains or rivers with minimal or no treatment.
Where is Sungai Dua water treatment plant located?
Sungai Dua Water Treatment Plant Seberang Perai, Malaysia 1. Background Information Sungai Dua Water Treatment Plant (SDWTP) is located at Seberang Perai and occupies about 13 hectares of land. SDWTP is the most important WTP in the Penang as it supplies 80% of the total volume of treated water to Penang.