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Trial Number 0

Trial Purpose:

Does catalytic water treatment improves cleaning

Date Run:

09/28/1995

Experiment Procedure:

The purpose of this trial is to determine if the catalytic water treatment of the Hydrocat improves cleaning efficiencies of various aqueous cleaners. The four different cleaning chemistries used were:
-WR Grace Daraclean #283 @ 10% by volume
-Oakite Products Inproclean #3800 @ 10% by volume
-Calgon Corp. Geo-Guard 3015 @ 10% by volume
-Valtech Valtron SP2275 @ 10% per volume Two beakers of each cleaning chemistry were made up (one with Hydrocat treated water and the other with ordinary tap water). Three coupons were cleaned in each beaker of cleaning solution for a total of 24 coupons.
Cleaning was performed for 10 minutes at 140 F (give or take 5 F) using stir-bar agitation. A constant setting on the stir plate was used on all beakers to ensure that all solutions obtained equal agitation. Rinsing was performed in a tap water tank without agitation for 2 minutes at 140 F. Coupons were then run under air knives for two minutes and placed in a convection oven where they were left until they were dry.
Each coupon was weighed before and after contamination and after drying to obtain a percentage removal of the Valvoline Bearing Grease.
After cleaning the beakers of cleaning solutions were covered with parafilm and left out on a counter for a few weeks. The beakers were inspected periodically to see if the Hydrocat treated solutions would retain a longer bath life than the tap-water solutions.

Trial Results:

GRAVIMETRIC RESULTS

Cleaning Solution:  10% solution of Daraclean 283 made up with Hydrocat water

Cleaning Temperature (oF): 137

sample # clean mass (g) mass with contamination (g) mass after cleaning (g) contaminant removed (g) Percent Removal
4 60.4253 60.6091 60.5485 0.0606 32.97%
28 59.9562 60.0914 60.0486 0.0428 31.66%
6 60.4893 60.5923 60.5294 0.0629 61.07%
        Average 41.90%
        StDev. 16.61%

 

Cleaning Solution: 10% solution of Daraclean 283 made up with tap water

Cleaning Temperature (oF): 140

sample # clean mass (g) mass with contamination (g) mass after cleaning (g) contaminant removed (g) Percent Removal
10 60.0194 60.1828 60.1468 0.0360 22.03%
11 60.7135 60.8512 60.7826 0.0686 49.82%
12 60.2832 60.4391 60.3248 0.1143 73.32%
        Average 48.39%
        StDev. 25.67%

 

Cleaning Solution:  10% solution of Valtech Corp. Valtron SP-2275 made up with Hydrocat water.

Cleaning Temperature (oF): 136

sample # clean mass (g) mass with contamination (g) mass after cleaning (g) contaminant removed (g) Percent Removal
19 60.2250 60.3664 60.2257 0.1407 99.51%
20 60.4810 60.6690 60.4838 0.1852 98.51%
21 60.2299 60.4352 60.2303 0.2049 99.81%
        Average 99.27%
        StDev. 0.68%

Cleaning Solution: 10% solution of Valtech Corp. Valtron SP-2275 made up with tap water.

Cleaning Temperature (oF): 141

sample # clean mass (g) mass with contamination (g) mass after cleaning (g) contaminant removed (g) Percent Removal
7 59.9125 60.0206 59.9131 0.1075 99.45%
8 60.1149 60.2732 60.1159 0.1573 99.37%
9 60.6615 60.7640 60.6621 0.1019 99.41%
        Average 99.41%
        StDev. 0.04%

 

Cleaning Solution: 10% solution of Oakite Inproclean 3800 made up with Hydrocat water.

Cleaning Temperature (oF): 142

sample # clean mass (g) mass with contamination (g) mass after cleaning (g) contaminant removed (g) Percent Removal
25 60.5273 60.6699 60.5481 0.1218 85.41%
26 59.3082 59.4589 59.3220 0.1369 90.84%
27 60.2475 60.4193 60.2853 0.134 78.00%
        Average 84.75%
        StDev. 6.45%

 

Cleaning Solution: 10% solution of Oakite Inproclean 3800 made up with tap water.

Cleaning Temperature (oF): 140

sample # clean mass (g) mass with contamination (g) mass after cleaning (g) contaminant removed (g) Percent Removal
13 60.3423 60.4886 60.3585 0.1301 88.93%
14 60.5448 60.6613 60.5483 0.113 97.00%
15 60.7070 60.8114 60.7076 0.1038 99.43%
        Average 95.12%
        StDev. 5.50%

 

Cleaning Solution: 10% solution of Calgon Geo-Guard #2215 made up with Hydrocat water.

Cleaning Temperature (oF): 134

sample # clean mass (g) mass with contamination (g) mass after cleaning (g) contaminant removed (g) Percent Removal
22 60.0150 60.2408 60.2377 0.0031 1.37%
23 60.1111 60.2510 60.2484 0.0026 1.86%
24 60.2343 60.4101 60.4076 0.0025 1.42%
        Average 1.55%
        StDev. 0.27%

 

Cleaning Solution: 10% solution of Calgon Geo-Guard #2215 made up with tap water.

Cleaning Temperature (oF): 136

sample # clean mass (g) mass with contamination (g) mass after cleaning (g) contaminant removed (g) Percent Removal
16 60.5809 60.8138 60.8105 0.0033 1.42%
17 60.3642 60.5162 60.5146 0.0016 1.05%
18 59.9102 60.0517 60.0479 0.0038 2.69%
        Average 1.72%
        StDev. 0.86%

Success Rating:

Test showed little or no promise.

Conclusion:

No noticeable improvements in cleaning efficiency were obtained by making up a cleaner solution with Hydrocat treated water.
On October 16th, cleaning solutions were inspected again to see if the bath lives of cleaner
solutions were increased at all due to the water treatment of the hydrocat. Both beakers of the WR Grace #211 and the Valtron SP2275 were starting to cloud up indicating that they were starting to go bad. There was no noticeable difference in the cloudiness of the solutions made up with Hydrocat-treated water and the solutions made up with tap-water.

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