Figure 3 : Labohan Dagang Water Supply Scheme ( 200 MLD ) commissioned in 2019
Figure 4 : Sungai Labu Water Supply Scheme ( 105 MLD ) commissioned in 2012
reduced by 80 to 90 % after the water is channelled through ORS . The natural sedimentation , flow , and added retention time also reduces the water turbidity level leading to improved water quality prior to treatment process which elevates the level of water purity .
Reduced Residuals from WTP WTP residuals are classified as scheduled wastes by the Malaysian Department of Environment ( DOE ), under the Environmental
Quality ( Scheduled Wastes ) Regulations 2005 . Thus , the residuals shall be disposed at approved landfill sites by DOE which would incur an additional cost for residuals management and disposal processes 2 . Through ORS , the reduced turbidity level in the raw water channelled for treatment results in lesser residuals production as a by-product of the water treatment process . This reduces its environmental impact and increases cost savings in terms of lower residuals management costs .
2 The incurred cost is calculated by Ringgit Malaysia ( RM ) per Metric Ton of disposed residuals .
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