Specifications -
Automated Sludge Sewage Treatment Plant activated sludge sewage
treatment pilot plant is a small scale industrial sewage plant. It consist of all the
comprehensive components and advance process control instrument to make the trainer more
interesting on study.
All the tank, components, instrumentation are mounted on mobile workbench with caster
roller. The bench is made of stainless steel frame. Table top is made of durable ABS plastic
material which can withstand the wet and chemical resistance.
The main control instrumentations consists of PLC (Telemechanique, France), analog data
acquisition card, input and output digital module pH control, O2 controller, Redo X controller,
temperature controller comprehensive aluminum etching mimic diagram with indicating light
and
alarm annuciator. All analysis controller is link to PC with data acquisition software. The setup
of
instrumentation communication are using modbus RTU RS485 which is widely use in modern
sewage treatment plant. The operation status of the pump, solenoid control valve are able to
controlled by PC
Experiment Possibilities
1. Study & measure of EOD (Biological Oxygen Demand) unit & COD (Chemical Oxygen
Demand)
2. Process of substrate flow
3. Effect of the temperature on the purification
4. Influence of PH and Oxygen on treatment process
5. Air injection time
6. The influence of dissolved oxygen concentration
7. Sludge recirculation flow process
8. The effect of stirrer speed on treatment process
9. Determination of the purification effect of stay time in oxidation tank
10. Determine the purification effect on mixing
11. Effect of different concentration of dissolved O2 on treatment plant’s efficiency
12. Determination of sludge sedimentation varying the concentration of work O2
13. Influence of the activated carbon on the purification process
Order Code – 24257601.1
Automed Sludge Sewage Treatment Plant
14. Testing using O2 instead of air (10 liter oxygen fill cylinder is provided)
The control function of pilot plant consist tow mode:
Fully automatic mode
This model is fully automotive control by PLC, which analysis data feed back by the controller
This mode, student can commend any control sequence via the PC control software, this is to
facilitate the
simulation and generate various type treatment process phenomenon and faults. This to
enhance the student
understanding and chemical-physical problem arising from the realization of an activated
sludge process.
The value of the analysis carried out in laboratory (COD, BOD, MVS ect…) could be set by the
operator to be taken into account in the formulas of flow instruction.
The process flow-line
1. Aerobic condition of cultivates the Micro-organism
2. Micro-organism digest the contaminated substances
3. After the pollutant elimination phase, it is further divide into clarified water and go to
settling tank
4. The clarified water is further sterilized, while the activated sludge is partially recycled within
oxidation tank in order to stabilize the treatment process.
Practice provide and other training provided :
1. The agitation effect on the treatment tank
2. Advantage of air-lift in the sludge recirculating system
3. Effect of oxygen concentration on the sludge elimination
Technical Specification
Air line system