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Recycling System for waterbased
parts cleaning plants |
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> The NWO solution
A recycling system for
parts cleaning
Since our water-based cleaning agents do not exhaust themselves
during the cleaning process ECOMAR has put all efforts in developing a cleaning
system with recycling features. By combining marketable components a facility
was developed which offers the possibility to be operated by smaller companies
also, as no special technical provisions are needed.
>
Re-use of water based cleaning agent
By employing the recycling facility provided and thereby creating
the possibility to re-use the water based cleaning agents environmental relief
shows in multiple respects* solvents from the former cleaning proces
* water from the new cleaning process
* cleansing agent from the new cleaning process
The system which is also available with an integrated iron
phosphating was originally designed for use in electrostatic powder coating
plants. The surface cleanness requirements in this coating process are of a
very high standard. This is mentioned to hint the system’s quality.
> The technical background
Our procedure is not a new development in the sense of fundamental
research. The ‘secret’ lies in the combination of a cleaning agent
meeting the quality requirements of the consecutive operating phases with an
UF-membrane which does not separate the cleaning agent as ‘dirt’.
Referring to recent market and technical studies other plants
on offer are not able to completely recover the cleaning agents for re-use.
Additionally, lacking failure tolerance withholds the application
in small and medium sized companies as they do neither employ the experts required
for operation of sophisticated facilities nor are they in a position to cover
the expenses for the necessary technical requirements. A simple example shall
serve for a better understanding:
An article about powder coating in car factories stated that
the following conditions for the operation of a powder spray cabin would be
necessary
* Temperature: 20-23°C
* rel. humidity: 60±5
These conditions require an airconditioned workshop which
a small sized company cannot afford.
Talking of ‘development’ means in the case of NWO recycling plants combining presently available
procedures in a new way. This avoids technical risks. The possibility of utilizing
this new procedure in medium sized companies with a small investment budget
and without a staff of specialists was what we aimed at.
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The NWO recycling
facility pays after three years at the latest
The following table shows quantities in relation to various waste
materials taking into account a 4-hours daily operation time of the cleaning
facility:
|
Kind of agent resp.
containment |
former
procedure |
NWO-
procedure |
difference
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Water [Liters/annum] |
1.100.000 |
ap. 140.000 |
- 960.000 |
|
cleansing agent: [l/a] |
approx. 11.000 |
ap. 1.400 |
- 9.600 |
It is easy to calculate the yield (German cost conditions)
from these figures:
|
1 |
Investment for the recycling facility |
US-$ 140,000 |
|
2 |
Savings according to the above table: |
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|
2.1 |
Water:
960 m3/a x $/m3 2.50 = |
US-$ 2,400
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2.2 |
Cleansing agent
9600 l/a x $/l 9.50 = |
US-$ 91,200
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Total savings/a: |
US-$ 93,600 |
This calculation shows that the cleaning and recycling facility
in this case (daily operation time = 4 hours) has a pay-back period of
less than 2 years.
We trust therefore that we have reached our target to make
environmental care in the parts and components cleaning process economical,
and we would like to emphazise that the suitability for medium and small sized
business was of highest priority to us.
For offers, please, contact info@ecomar.de
More details:  |
