如何將淡化海水引進住戶？ 預處理工藝的食水處理設施 (ActiDAFF) 內結合了溶氣浮選和過 濾兩項工序，初步清除海水的雜質。這種結合兩種工序的預處 理工藝不僅能減少海水化淡廠的用地作其他用途，同時較傳統 單一功能的預處理設施更能節省能源及降低營運成本。此外， 該設施能因應實時的海水質素靈活調節進行或繞過溶氣浮選工 序，進一步減低海水化淡廠的能源消耗。 海水經過逆滲透處理後，約40%可轉化成食水，而餘下的 60%為濃鹽水並會經由海底排水管道排出大海。 How Desalinated Water Comes to your Door? An integrated structure ActiDAFF combining flotation and filtration processes is built to pretreat seawater. This combined pre-treatment approach not only reduces the physical footprint of the plant, freeing up land for other purposes, but also enhances energy efficiency and lowers operational costs as compared to traditional single-purpose facilities. Moreover, the flexibility to bypass the air flotation stage when incoming seawater quality permits further optimises the plant's energy consumption. After the RO treatment, approximately 40% of potable water will be generated after the RO treatment while discharging the remaining 60% of the processed seawater into the sea through a submarine outfall system. 第一步 Step1 海水進水口 Seawater Intake 海水 Seawater 第二步 Step2 預處理工藝的食水處理設施 ActiDAFF 高壓泵 HP Pump 經初步處理 的海水 Pre-treated Seawater 第三步 Step3 逆滲透淨化程序 Reverse Osmosis 滲透液 Permeate Water 第四步 Step4 後期處理 Post-treatment 食水 Product Water 食水 Product Water 海水 Seawater 濃鹽水 Brine 能量回收設備 Energy Recovery Device(ERD) 濃鹽水 Brine 綜合豎井 Combined Shaft 濃鹽水 Brine 排放口 Outfall Enable 啟動 28 水務署 二零二三至二四年年報 WSD Annual Report 2023/24 Menu 目錄
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