Imprint Contact 868 Videos
900.000 Callings



Formulary
Exercises

Wheel change
Save Energy
History


Video Body
Video History
Video Body Development 1
Video Body Development 2
Video Coachwork - Package
Video NCAP norms
Video Body Repair 1
Video Body Repair 2
Video Model development
Video Efficient Develop.
Video Design 1
Video Design 2
Video Design 3
Video Design 4
Video Design 5
Video Design 6
Video Design 7
Video Design 8
Video Carbody Terms
Video Oldtimer Restoration
Video Wind-tunnel
Video Ferrari F 1
Video Drift
Video Aerodyn. Resist. 1
Video Aerodyn. Resist. 2
Video Aerodyn. Resist. 3
Video Frontend
Video Deep-drawing
Video Bending
Video Profile Rolling
Video Aluminum Body 1
Video Aluminum Body 2
Video Aluminum Body 3
Video Glass Roof
Video Panorama Glass Roof
Video Bulletproof Glass
Video Cross Section
Video Body (rear part)
Video Vehicle Floor Trim
Video Interior Decoration
Video Autom. dimming mirror
Video Seat 1
Video Seat 2
Video Folding rear seats
Video Impact Energy
Video Scrap Recycling 1
Video Scrap Recycling 2
Video High roof cars
Video Sports Utility Veh.
Video Minivan
Video Convertible
Video Folding Roof
Video Body (convertible)
Video Convertible study Seat
Video Convertible Body
Video Body Range
Video Rollover-protection
Video Body (transporter)
Video Aerodynamic (F-1)
Video Glass 1
Video Glass 2
Video Glass 3
Video Glass 4
Video Glass 5
Video Glass 6
Video Window tinting
Video Car wash 1
Video Car wash 2
Video Car wash 3
Video Paintwork 1
Video Paintwork 2
Video Paintwork 3
Video Color Matching
Video Car Wrap
Video Plastic coating
Video Polishing
Video Small Dents
Video Large Dents
Video Bumpers
Video Two-part Door
Video Sectional Repair
Video Straight. Equipment
Video Hydr. Body Repair
Video Repair Bench 1
Video Repair Bench 2
Video Pange and Flange Tool
Video Screw Production
Video Tin-plate
Video Alum. welding

Video Body 1
Video Body 2
Video Comfort - Interior 1
Video Comfort - Interior 2


          A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

  Car-wash 2








Did you know that in an automatic car-wash, several hundred liters of water are needed, also for just one motor car? Can you imagine, what the water- and especially the sewage costs are for operator? If one cubic meter nowadays, costs a good bit more than 5 Euros, it could mean up to 30 or more Euros per hour.

It's quite obvious, that a water processing system is of significant value. Of course this also makes sense for ecological reasons. However, one must make a distinction between the various types of car-washes. Apparently, in the self-service areas less water is used than in the automatic car-wash, it would appear that here the water processing is obviously too expensive. Thus, if you wish to do something for the environment, then choose the automatic car-wash.

Since this article is about water processing and not about oil-separation, we won't go into the subject of what happens to the water when it leaves the self-service wash. Here we will be dealing solely with washing facilities for motor cars, trucks and, if you like, for trains. At this point, we would like to explain the three stages of water processing.

In this case, like with the oil-separation, we have to, first of all, concern ourselves with the grit-trap as a part of the 'coarse material separation'. This is a sufficiently large concrete basin, where the waste water from the system is stored for a while. All the coarse particles sink to the bottom. This is followed by the so-called 'water revitalization', whereby, the respective enriching through compressed air provides sufficient oxygen for the microbes to do their biological degrading more efficiently. The final, physical process of separating the fine substances, if not already done in stage 1, then takes place. Afterwards, although the water cannot be drunk, it can again be used for further washing. The manufacturers even guarantee the greatest possible neutrality as far as odour is concerned.

The dimensions of the installation are very important. A part of a side-room, must be able to handle up to 3.000 liters per hour. In those where the cars are washed one after the other, up to 50.000 liters per hour are then used. If the necessary space, of up to 40 mē, is not available, then the installation must be placed underground and must be cased in a concrete jacket, whereby, the stages 2 and 3 might be combined.

Indeed, we've now landed back with the oil-separator, because it is situated directly next to the processing plant. Of course, in connection with the water processing, chemistry also plays a role, the chemicals are introduced during the circulation. One particular example should be mentioned here, the removal of graffiti from the outside of train coaches.

One might think that the system has now been sufficiently explained. Indeed, the problems lie in the details. In fact, there where one would not expect them to be. Whoever would expect there to be a difference between two round grit-trap basins and one oval one? Indeed, instead of two round ones, each having the same diameter, one should rather have one oval basin. After all, the excavation work is the same and the effective surface area is almost doubled.

The time that the particles linger in the basin, has a settling effect on them, on the other hand however, the change from one basin to the other does just the opposite. If the smaller particles are also to sink to the bottom, then a longer settling phase is helpful. This means a longer settling period at the same flow rate and thus, an increased cleansing effect. 09/12




cartecc.com               Top of page               Index
2001-2015 Copyright programs, texts, animations, pictures: H. Huppertz - E-Mail
Translator: Don Leslie - Email: lesdon@t-online.de

Our E-Book advertising