ASR3123 Precipitation and Flocculation engineering teaching equipment Hydrodynamics Laboratory Equipment
The unit shall perform the following experiments and investigations:
Learning Objectives / Experiments
familiarisation with precipitation and flocculation
effect of the pH value on precipitation
creation of a stable operating state
determination of the required metering quantities (precipitant, coagulant, flocculant)
functional principle of a lamella separator
Specification
[1]precipitation and flocculation of dissolved substances (e.g. iron)
[2]separate supply unit with tank and pump for raw water
[3]precipitation tank with stirring machine
[4]flocculation tank with 3 chambers and 4 stirring machines
[5]3 metering pumps for chemicals
[6]sedimentation of the flocs in the lamella separator
[7]measurement of flow rate, temperature and pH value
[8]control of the pH value in the precipitation tank
[9]conductivity meter
Technical Data Tanks
raw water and treated water: each 300L
precipitation tank: 10L
flocculation tank: 45L
sludge tank: 15L Lamella separator
number of lamellas: 6
angle of inclination of lamellas: 60°
Raw water pump
max. flow rate: 180L/h
max. head: 10m Metering pumps
max. flow rate: each 2,1L/h
max. head: each 160m Stirring machines
max speed: each 600rpm Measuring ranges
flow rate: 15…160L/h
pH value: 0…14
temperature: 0…60°C
conductivity: 0…2000µS/cm
Dimensions and Weight
LxWxH: 1550x790x1150mm (supply unit) LxWxH: 3100x790x1950mm (trainer) Total weight: approx. 435kg
Material of construction: stainless steel
