9.3 Chemical used in Showing various With also information on water treatment chemicals commonly used optimum dosage, jar tests in treatment of water such and dosage monitoring 瀘水用的化學物 as ozone, hydrated lime, powdered activated carbon, alum, polyelectrolyte, sodium carbonate, sodium phosphate, ammonium sulphate, flocculant, fluoride, chlorine, etc. and their usage 9.4 Clarification, Water Removal of turbidity Cover also sludge and Filtering & Backwash (suspended matter) by sludge cake disposal, can dissolved air flotation and include biological filter, 澄清、過瀘及反沖洗 convention sedimentation issues related to processes; and commercial advertisement understand more about on water filtering systems, water filtering systems and and information of applications, and potential problems of interactive exhibit showing home filtering system and how backwash is carried how they should be out to cleanse filters maintained 9.5 Controlling Water Online analyser, sampling Including WSD’s Quality for laboratory tests, Laboratory Quality turbidity tests and clarity Management System, 水質控制 bowls in control room Laboratory Information Management System and publication of water quality data, and the Advisory Committee on Water Resources and Quality of Water Supplies (ACRQWS)
9.3 Chemical used in water treatment 瀘水用的化學物 Showing various chemicals commonly used in treatment of water such as ozone, hydrated lime, powdered activated carbon, alum, polyelectrolyte, sodium carbonate, sodium phosphate, ammonium sulphate, flocculant, fluoride, chlorine, etc. and their usage With also information on optimum dosage, jar tests and dosage monitoring 9.4 Clarification, Water Filtering & Backwash 澄清、過瀘及反沖洗 Removal of turbidity (suspended matter) by dissolved air flotation and convention sedimentation processes; and understand more about water filtering systems and applications, and interactive exhibit showing how backwash is carried out to cleanse filters Cover also sludge and sludge cake disposal, can include biological filter, issues related to commercial advertisement on water filtering systems, and information of potential problems of home filtering system and how they should be maintained 9.5 Controlling Water Quality 水質控制 Online analyser, sampling for laboratory tests, turbidity tests and clarity bowls in control room Including WSD’s Laboratory Quality Management System, Laboratory Information Management System and publication of water quality data, and the Advisory Committee on Water Resources and Quality of Water Supplies (ACRQWS)