Water management | Festo TW

Understanding the core processes of the water cycle

Water is an essential element in most areas of human life. It is available as tap or process water and is also used to generate electricity. Water management systems are complex and require a great deal of vigilance, as the applications have far-reaching effects on people as well as on the environment. Our learning system EDS® Water Management includes practical exercises and experiments that enable the precise and detailed analysis of the individual processes in the water cycle and illustrate how changes in one area affect the entire system.

EDS® – Environmental Discovery System for Water Management

EDS® Water Management is a modular learning system that presents the core processes in water treatment and wastewater treatment plants, integrated into the water cycle from the source to the wastewater treatment plant and back.

Thanks to its industry-based design, EDS® Water Management can be used to teach the principles behind the production of drinking water, water transport and wastewater treatment. It offers a compact introduction to instrumentation and control technology.

Winner of the 2016 Worlddidac Award, the learning system EDS® Water Management is an innovative training solution that comprehensively prepares students for a career in water management.

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General training content

Controlling, regulating and monitoring physical variables such as level, flow rate and pressure
Technical and physical functions of sensors and actuators and their connection, adjustment and parameterisation
Analysing control systems, parameterising and optimising closed-loop controllers
System operation, maintenance, troubleshooting and repair
Plant engineering
Optimisation and energy monitoring
Electronic data processing

Water treatment station

The station is fully assembled, wired and ready to use
Water treatment system with basic functions in the form of a water reservoir with overflow edge
A groundwater tank with a submersible pump is required for operation
Setting flow rate values for volume control
Level measurement via analogue pressure gauge
Level sensing via capacitive proximity sensors
Triggering a flocculation reaction by adding a flocculant
Occurrence of sedimentation

Training content:

Function of an overflow edge
Analogue level measurement via a pressure sensor
Capacitive proximity sensors for level sensing
The basic processes of coagulation, flocculation and sedimentation
Controlling a pump for flow control (water supply tank required)
Control variations via capacitive sensors to control the level (water supply tank required)
Measuring chlorine content (additional chlorine measurement package required)
Effects of excessive or insufficient chlorine dosing (additional chlorine measurement package required)

More information about the water purification station

Water supply station

The station is fully assembled, wired and ready to use
Water storage and distribution via an elevated tank, e.g. a water tower
Filling the elevated tank via a pump
The pump can be operated in open-loop and closed-loop mode
Water is drawn off via valves
Balancing the amount of incoming water with the amount of delivered water; handling leaks
A water supply tank/ground water is required for individual operation.

Training content:

Setting the pump to open-loop and closed-loop operation and determining the effect on pump output
Examining interactions between pressure and volumetric flow rate in a pipe system
Controlling the water supply via various valve types and showing the effects of impact loads
Detecting water losses in distribution networks and identifying problems in leakage detection
Measuring/controlling levels with ultrasound sensors
Understanding and applying the function of pneumatically actuated process valves and fittings

More information about the water supply station

Wastewater transport station

Control technology for wastewater disposal and associated processes
The plastic granulate that is used as dirt particles can be air dried and reused.
Realistic simulation of flooding caused by rain and of problems removing solids
A flow meter records the flow rate, which is set via the pump's motor control system or a proportional media valve
The media valve operates based on the principle of a pneumatically activated pinch-hose valve
The station is fully assembled, wired and ready to use
A water supply tank/ground water is required for individual operation.

Training content:

Transporting solids in the sewage system with different flow speeds
Effects of exceeding the hydraulic capacity
Naming the basic events that make flushing necessary
Functions of a rain overflow basin
Basic functions of sedimentation in a flow basin
Level measurement with an ultrasound sensor
Functions of pneumatically actuated process valves

More information about the wastewater transport station

Wastewater treatment station

Analysing the physical functions in wastewater treatment after activated sludge treatment
Contains an aeration tank and a secondary clarifier.
Plastic granulate which serves as dirt particles can be air dried and reused after use.
The sludge return has a flow measurement system with an adjustable pump for setting and monitoring the sludge return ratio.
The supply of oxygen at the station is carried out using an electrically adjustable compressed air diaphragm pump. It is possible to extend the oxygen feeding system to a control circuit with the aid of an oxygen sensor.
In order to guarantee energy-optimised oxygen feeding, in-line oxygen measurement must be carried out and connected to the oxygen feeding drive in a control circuit. Unnecessary energy consumption as well as potential biochemical malfunctions can then be avoided.
By regularly adding sodium sulphite (Na ₂ SO ₃ ) to the water, the oxygen consumption is continuous and thus simulates the oxygen demand of the bacteria that decompose organic matter in a real biological wastewater treatment process.

Sand filtration station

Filtration process for separating solids frequently used in water purification and wastewater technology
Sand layers for the retention of pollutants via deep-bed filtration
Sensors monitor rising water levels until the sensor signal shuts off the inflow and initiates the backwash process.
The parameterisation of the filtration process is configured via PC using the software supplied.
A transparent filter housing allows students to monitor the purification performance of the quartz sand and quartz gravel layer.
The station is fully assembled, wired and ready to use
Includes water supply tank/ground water

Training content:

Separation of pollutants via a quartz sand and quartz gravel layer
Deep-bed filtration and structure of a filter cake
Measurement of pressure loss via the sand filter
Automated filter process and backwashing of the sand filter
Parameterisation of the process steps
Functions of pneumatically actuated process valves
Creating a Micheau diagram

More information about the sand filtration station

Membrane filtration station

Drinking water and wastewater treatment via micro- and ultrafiltration.
Retention of pathogenic germs
Differences between the cross-flow and dead-end filtration modes
Backwash processes using previously generated system filtrate
Pressure holding test of membrane functionality
The station is fully assembled, wired and ready to use

Training content:

Operating modes of membrane filtration, i.e. filtration and backwashing
Presentation of the theory and basic principles of various membrane filtration (micro-, ultra-, nanofiltration and reverse osmosis)
Process engineering differences between cross-flow and dead-end filtration
Automated integrity test for testing the quality of the membrane via pneumatic pressurisation and monitoring
Effect of transmembrane pressure on filter performance
Functions of pneumatically actuated process valves

More information about the membrane filtration station

Fully equipped basic water circuit system – four stations in one!

Contains all the necessary water supply and disposal stations: water purification, water supply, wastewater transport and wastewater treatment.
Stations can also be used independently as individual stations.
The students first control the individual stations manually using a simulation box.
The included EasyPorts are then used to control and observe the stations via the control software.
A PC connected to all four EasyPorts controls the entire system.
The basic system stations are fully assembled, wired and tested.
A water supply tank/ground water is required for individual operation.

Training content:

The basic system contains all the training content of the individual stations, plus the following additions:

Making dependencies in a water cycle visible
Connecting systems for increased complexity
Identifying interrelationships between hydraulic flow and pumping capacity beyond the limits of the station
Learning the importance of different pressure zones in a water supply network

Further information about the basic water circuit system

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