Teaching equipment : Effluents physical-chemical treatment unit

 

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Effluents physical-chemical treatment unit

DESCRIPTION

 

Determining the Chemical Oxygen Demand (COD) gives an indication of the treatment waste water requires before it can be returned to the environment.

This unit can be used to demonstrate flocculation, chemical neutralization (confirmed by measurements) and decantation.

This unit is easy to move into position because of its frame with small wheels.

This unit is designed for various levels and fields of study.

Technical documentation is provided.

 

Teaching equipment : Effluents physical-chemical treatment unit - GPB T40

TECHNICAL SPECIFICATIONS

1-2-Supply tank
- High density polyethylene
- Volume : 20 L

3-4-Supply pump
- Dosing pump with diaphragm
- Polypropylene body
- Maximal flow rates at 3 bar (45 psi): 8 L/h

5- Neutralization section
- Volume = 5 L PVC
- Agitator
- pH electrode and indicator for neutralization
- Temperature sensor (Pt 100 type) and indicator

6- Flocculation section
- Test with Jar test flocculator for the optimization of the quantity of flocculent or coagulant
- Volume 5 L – PVC

7- Agitators
- Variable speed: 0-2000 R.P.M. at 100 Ncm
- 316 L stainless steel gear and modulus with propeller

 

 

8- Decantation tank
- PVC
- Volume 100 L
- Recirculation rail and 30 %-fall for the outflow

9- Recirculation pump
- Centrifugal pump - P = 0.37 kW
- AISI 316 l stainless steel body
- Maximum flow rate: 1500Ll/h at 1.5 bar(21 psi)
- Rotameter - 0-500 L/h

10- Supply tank of waters to be treated
- High density polyethylene
- Volume: 150 Lwith low point of evacuation

11- Supply pump
- Centrifugal pump - P = 0.37 kW,
- AISI 316 L stainless steel body
- Maximuml flow rate : 1500 L/h at 1.5 bar (21 psi)
- Rotameter - 0-500 L/h

Option : Jar test flocculator – 6 stations to determine the quantity of flocculents or coagulants to treat and optimise waste waters.

PEDAGOGIC APPLICATIONS

 

• Illustration and understanding of the water treatment process
• Demonstrate principles using copper sulphate solution or waste water.
• Measurement of COD
• Study of flocculation
• Study of chemical neutralization of a water confirmed by a pH measurement
• Influence of the variation of the supply flow rate and sludge recycling
• Optimisation of the flocculation by Jar-test flocculator
• Determination of the staying time

Teaching equipment : Effluents physical-chemical treatment unit - schema GPB T40


UTILITIES
Electricity : 230 VAC – 50 Hz
Evacuation
Network water

DIMENSIONS
Length: 1800 mm
Width: 700 mm
Height: 1550 mm


 

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Effluents physical-chemical treatment unit



Didatec Technologie - ZA du Parc 42490 Fraisses -  France -   Tel : 33 (0)4 77 10 10 10 -  Fax : 33 (0)4 77 61 56 49   
E-Mail : didatec.technologie@wanadoo.fr