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Trial Purpose:
To compare surfactant levels
Date Run:
07/20/1999Experiment Procedure:
To compare surfactant levels of a cleaning solution before & after passing through separation equipment (Aqueous Recovery Resources, Inc., Suparator, oil-water separator) and a virgin sample of the solution.
Three titrations were per sample were tested for nonionic surfactant content using Bama Chem Nonionic Surfactant Kit. The general procedure is as follows:
1. ADD APPROXIMATELY 25 ML OF WATER TO MIXING VIAL
2. ADD 8 DROPS OF INDICATOR SOLUTION TO VIAL. COLOR SHOULD BE GREEN.
3. ADD 15 DROPS OF 20% SULFURIC ACID TO VIAL (20 DROPS IF STRONGLY ALKALINE DETERGENTS ARE TESTED) AND SWIRL. COLOR SHOULD NOW BE PURPLE. (CAUTION: HANDLE THIS SOLUTION WITH CARE. IT IS CORROSIVE AND MAY CAUSE BURNS.)
4. ADD 0.5ML OF NONIONIC DETERGENT SOLUTION TO VIAL AND SWIRL, COLOR SHOULD NOW TURN BACK TO GREEN OR YELLOW-GREEN.
5. ADD TITRATING SOLUTION DROPWISE WHILE COUNTING UNTIL THE COLOR CHANGES TO A WINE-RED OR PURPLE. (ABOUT HALFWAY TO THE ENDPOINT THE COLOR WILL BE TAN OR LIGHT BROWN). NOTE THE NUMBER OF DROPS NEEDED AND MULTIPLY BY 0.5 TO GET % BY VOLUME OF NONIONIC DETERGENT. EACH DROP IS EQUIVALENT TO 0.0028 GRAMS OF SURFACTANT.
CHOOSE SAMPLE SIZE THAT WILL REQUIRE 10-20 DROPS OF TITRANT FOR BETTER ACCURACY. FOR VERY CONCENTRATED SURFACTANT SOLUTIONS USE A 0.10ML SAMPLE SO AS TO CONSERVE REAGENTS. FOR A 0.10ML SAMPLE USE A FACTOR OF 2.5.
FOR WEAKER SOLUTIONS:
1.00ML SAMPLE USE A FACTOR OF 0.25
10.00ML SAMPLE USE A FACTOR OF 0.025
100.00ML SAMPLE USE A FACTOR OF 0.0025
SOME INTERFERENCES - ACID SOLUBLE ANIONIC DETERGENTS CATIONIC DETERGENTS SOME AMINES STRONG OXIDIZERS SUCH AS HYPOCHLORITES, NITRITES, ETC. HIGHLY CONCENTRATED DYES
The chemistries used were:
SITE | CLEANER MFR | PRODUCT | Notes: |
Racine | Howard Supply Co | LT-5-100 Soak Cleaner | 10 oz/gal |
Racine | Howard Supply Co | LT-5-100 Soak Cleaner | Influent to Suparator |
Racine | Howard Supply Co | LT-5-100 Soak Cleaner | Effluent from Suparator |
Trial Results:
The solution appeared to have a vastly increased level of surfactant after passing through the oil-
water separator. Table 1 list the values obtained for each stage of the cleaner.
Table 1. Surfactant Levels
Site: | Racine | |
Cleaner | Influent | Effluent |
8.33 | 13.33 | 46.67 |
13.33 | 13.33 | 53.33 |
13.33 | 16.67 | 43.33 |
11.67 | 14.44 | 47.78 |
Table 2. Data from each stage of solution
Table 2. | Data from each stage of solution | |
Client | EPA/Superator Chris Underwood | |
Client Type | Consultant | |
SCL # | 99-7104-02-5 | |
Test Type | Nonionic | |
Cleaner Mfr | Racine Cleaner | |
Product Name | LT-5-100 Soak Cleaner | |
Concentration Used | 7.5 | % |
Drops Required | 6 | |
Sample Size | 1.5 | mL |
Wt of Surfactant | 0.0168 | grams |
drop * f | 1 | % by volume of nonionic surfactant |
Dilution correction | 13.33 | |
Total Surfactant | 13.33 | |
Mfr | Racine Cleaner | |
Product | ||
Conc. % | 7.5 | |
Volume | 1.5 | |
Wt of Surf | 0.0168 | in Sample |
% Surf. | 1 | in Sample |
Total Surf % | 13.33 | |
Experimenter | Marshall | |
Date | 7/20/99 | |
Client Type | Consultant | |
SCL # | 99-7104-02-5 | |
Test Type | Nonionic | |
Cleaner Mfr | Racine Influent | |
Product Name | LT-5-100 Soak Cleaner | |
Concentration Used | 7.5 | % |
Drops Required | 4 | |
Sample Size | 1 | mL |
Wt of Surfactant | 0.0112 | grams |
drop * f | 1 | % by volume of nonionic surfactant |
Dilution correction | 13.33 | |
Total Surfactant | 13.33 | |
Mfr | Racine Influent | |
Product | LT-5-100 Soak Cleaner | |
Conc. % | 7.5 | |
Volume | 1 | |
Wt of Surf | 0.0112 | in Sample |
% Surf. | 1 | in Sample |
Total Surf % | 13.33 | Full strength |
Experimenter | Marshall | |
Date | 7/20/99 | |
Client Type | Consultant | |
SCL # | 99-7104-02-5 | |
Test Type | Nonionic | |
Cleaner Mfr | Racine Influent | |
Product Name | LT-5-100 Soak Cleaner | |
Concentration Used | 7.5 | % |
Drops Required | 4 | |
Sample Size | 1 | mL |
Wt of Surfactant | 0.0112 | grams |
drop * f | 1 | % by volume of nonionic surfactant |
Dilution correction | 13.33 | |
Total Surfactant | 13.33 | |
Mfr | Racine Influent | |
Product | LT-5-100 Soak Cleaner | |
Conc. % | 7.5 | |
Volume | 1 | |
Wt of Surf | 0.0112 | in Sample |
% Surf. | 1 | in Sample |
Total Surf % | 13.33 | Full strength |
Experimenter | Marshall | |
Date | 7/20/99 | |
Client Type | Consultant | |
SCL # | 99-7104-02-5 | |
Test Type | Nonionic | |
Cleaner Mfr | Racine Influent | |
Product Name | LT-5-100 Soak Cleaner | |
Concentration Used | 7.5 | % |
Drops Required | 5 | |
Sample Size | 1 | mL |
Wt of Surfactant | 0.014 | grams |
drop * f | 1.25 | % by volume of nonionic surfactant |
Dilution correction | 13.33 | |
Total Surfactant | 16.67 | |
Mfr | Racine Influent | |
Product | LT-5-100 Soak Cleaner | |
Conc. % | 7.5 | |
Volume | 1 | mL |
Wt of Surf | 0.014 | in Sample |
% Surf. | 1.25 | in Sample |
Total Surf % | 16.67 | Full strength |
Experimenter | Marshall | |
Date | 7/20/99 | |
Client Type | Consultant | |
SCL # | 99-7104-02-5 | |
Test Type | Nonionic | |
Cleaner Mfr | Racine Effluent | |
Product Name | LT-5-100 Soak Cleaner | |
Concentration Used | 7.5 | % |
Drops Required | 16 | |
Sample Size | 1 | mL |
Wt of Surfactant | 0.0448 | grams |
drop * f | 4 | % by volume of nonionic surfactant |
Dilution correction | 13.33 | |
Total Surfactant | 53.33 | |
Mfr | Racine Effluent | |
Product | LT-5-100 Soak Cleaner | |
Conc. % | 7.5 | |
Volume | 1 | ml |
Wt of Surf | 0.0448 | in Sample |
% Surf. | 4 | in Sample |
Total Surf % | 53.33 | Full strength |
Experimenter | Marshall | |
Date | 7/20/99 | |
Client Type | Consultant | |
SCL # | 99-7104-02-5 | |
Test Type | Nonionic | |
Cleaner Mfr | Racine Effluent | |
Product Name | LT-5-100 Soak Cleaner | |
Concentration Used | 7.5 | % |
Drops Required | 14 | |
Sample Size | 1 | mL |
Wt of Surfactant | 0.0392 | grams |
drop * f | 3.5 | % by volume of nonionic surfactant |
Dilution correction | 13.33 | |
Total Surfactant | 46.67 | |
Mfr | Racine Effluent | |
Product | LT-5-100 Soak Cleaner | |
Conc. % | 7.5 | |
Volume | 1 | |
Wt of Surf | 0.0392 | in Sample |
% Surf. | 3.5 | in Sample |
Total Surf % | 46.67 | Full strength |
Experimenter | Marshall | |
Date | 7/20/99 | |
Client Type | Consultant | |
SCL # | 99-7104-02-5 | |
Test Type | Nonionic | |
Cleaner Mfr | Racine Effluent | |
Product Name | LT-5-100 Soak Cleaner | |
Concentration Used | 7.5 | % |
Drops Required | 13 | |
Sample Size | 1 | mL |
Wt of Surfactant | 0.0364 | grams |
drop * f | 3.25 | % by volume of nonionic surfactant |
Dilution correction | 13.33 | |
Total Surfactant | 43.33 | |
Mfr | Racine Effluent | |
Product | LT-5-100 Soak Cleaner | |
Conc. % | 7.5 | |
Volume | 1 | |
Wt of Surf | 0.0364 | in Sample |
% Surf. | 3.25 | in Sample |
Total Surf % | 43.33 | Full |
Success Rating:
A cleanliness study, addressing only various analytical techniques.Conclusion:
The concentration of surfactant in the cleaning solutions were not decreased by passing through the Superator Oil-Water separator.