SRWT0017 Water Treatment Plant 2 Vocational Training Equipment Sewage Treatment Trainer
1.Description Depth filtration with sand filters and ion exchange are key unit operations in water treatment. It enables these two operations to be demonstrated. The raw water is pumped from above into a sand filter. Solids are captured and retained as the raw water flows through the filter bed. The filtered water emerges from the bottom end of the sand filter and then flows through two ion exchangers (cation and anion exchangers). In the process, unwanted ions are exchanged for hydrogen and hydroxide ions. The raw water is softened and desalinated. The sand filter and the two ion exchangers can be used in combination or separately. The solids deposited in the sand filter result in an increase in pressure loss. Backwashing cleans the filter bed and reduces the pressure loss. The ion exchangers can be regenerated with acid or caustic. The sand filter is equipped with a differential pressure measurement. There are also several pressure measuring points along the filter bed. The pressures are transmitted to tube manometers via hoses and displayed there as water columns. This can be used to plot Micheau diagrams. The flow rate, temperature, conductivity, differential pressure and system pressure are measured. The flow velocity in the filter bed (filter velocity) can be adjusted. Samples can be taken at all relevant points. E.g. diatomite can be used to produce the raw water. A software program is provided to control the operating states and measure data. A process scematic shows the current operating states of the individual components and the measured data. 2.Specification water treatment with depth filtration and ion exchange sand filter, cation and anion exchanger all processes usable separately or in combination backwash of sand filter regeneration of ion exchangers differential pressure measurement of sand filter 20 tube manometers to measure the pressures in the filter bed plotting of Micheau diagrams measurement of flow rate, temperature, conductivity, differential pressure and system pressure filter velocity adjustable software with control functions and data acquisition via USB under Windows Vista or Windows 7 3.Technical data Raw water pump max. flow rate: 25m3/h max. head: 20m Backwash pump max. flow rate: 3m3/h max. head: 37m Tanks for raw water and treated water capacity: each approx. 180L Measuring ranges flow rate (raw water): 0…1300L/h flow rate (regeneration): 2…25L/h differential pressure: -1…1bar system pressure: 0…4bar tube manometers: 20x 0…1500mm conductivity: 0…600µS/cm temperature: 0…100°C filter velocity: approx. 0…70m/h 230V, 50Hz, 1 phase Dimensions and weight LxWxH: 1550x920x2200mm (trainer) LxWxH: 1400x800x1150mm (supply unit) LxWxH: 750x640x1840mm (manometer panel) Total weight: approx. 440kg Required for operation Caustic soda, hydrochloric acid, distilled water
