Pilot Plant Study on Development of Desalination Facilities

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= 0 4 4/ = * + 8, < 0 "& > 8, < / 8, < * / 5 " ) < $ ) ) " / / < ) . )" ! " ' + )1 ' 5 Ability to Meet Ability to Meet SDI Turbidity for 95th percentile for 95th percentile Target Objective Target Objective Goal Goal (0.2 NTU) (1 NTU) (3.0) (4.0) Tuen Mun - Pre-treatment, Submerged UF No Yes No Yes Tuen Mun - Pre-treatment, Pressurised UF Yes Yes No Yes Tuen Mun - Pre-treatment, Conventional GMF Yes 6 Yes 6 No No 7 Ap Lei Chau - Pre-treatment, Pressurised UF Yes Yes No Yes Ap Lei Chau - Pre-treatment, Conventional GMF Yes Yes No No 7 ( ! ( 0 2 ! ( + , " # - + ! 4/ ? ! ( 4 The filtrate quality shall meet the typical minimum SWRO process requirements (i.e. turbidity of
. & / / ' ' 7 5 / " $ " )" / ) < ) 4 . + + ) . + & " ; 7 ! " " . " & 8 Site Tuen Mun representing feed seawater under strong seasonal influence from Pearl River estuary during summer wet seasons Ap Lei Chau representing feed seawater with oceanic nature and not influenced from any freshwater discharges General Pre-treatment recovery – 90% to 95% (or per supplier’s recommendations) Pre-treatment – Ultrafiltration Pre-treatment – Granular Media Filtration 10 General Parameters for SWRO Processes Site-specific Parameters for SWRO Processes Pre-treatment filtrate quality fulfilling minimum SWRO process requirements (typical value for turbidity of
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Pilot Plant Study on Development of Desalination Facilities

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