CleanerSolutions Database
Toxics Use Reduction Institute · Surface Solutions Laboratory
 
Toxics Use Reduction Institute




Surface Solutions Laboratory

Trial Report



Trial Number 2

(Client Number 104, Project Number 1)

Trial Purpose: To compare surfactant levels of a cleaning solution

Date Run: 07/20/99

Experiment 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:
West Bend Environmentally Sensitive Solutions ES -5000 10 % by Volume
West Bend Environmentally Sensitive Solutions ES -5000 Influent to Suparator
West Bend Environmentally Sensitive Solutions ES -5000 Effluent from Suparator

Trial Results
After passing through the oil-water separator, the West Bend cleaning solution surfactant levels almost returned to the initial clean level.  Table 1
lists the three stages and the surfactant levels.
Table 1.  Surfactant Levels          
Site:            West Bend            
            Cleaner    Influent      Effluent
            2.50            1.67            1.96
            2.08            1.50            2.19
            2.75            1.61            2.03
Ave      2.44            1.59            2.06

Table 2.  Data From Each Stage
Experimenter            Marshall            
Date                          7/20/99            
Client Type               Consultant            
SCL #                       99-7104-02-5
Test Type                 Nonionic            
Cleaner Mfr              West Bend Cleaner
Product Name          Environmentally Sensitive Solutions ES-5000
Concetration Used        10            %
Drops Required            10            
Sample Size                10            mL
Wt of Surfactant           0.028      grams
drop * f                         0.25        % by volume of nonionic surfactant
Dilution correction      10            
Total Surfactant           2.5            
Mfr                   West Bend Cleaner
Product            Environmentally Sensitive Solutions ES-5000
Conc. %            10            
Volume             10            
Wt of Surf           0.028       in Sample
% Surf.               0.25          in Sample
Total Surf %       2.5            Full strength

Experimenter         Marshall            
Date                       07/20/99
Client Type            Consultant            
SCL #                    99-7104-02-5
Test Type              Nonionic            
Cleaner Mfr           West Bend Cleaner
Product Name       Environmentally Sensitive Solutions ES-5000
Concentration Used 10            %
Drops Required         5            
Sample Size             6            mL
Wt of Surfactant       0.014      grams
drop * f                     0.20833  % by volume of nonionic surfactant
Dilution correction   10            
Total Surfactant        2.08333
Mfr            West Bend Cleaner
Product     Environmentally Sensitive Solutions ES-5000
Conc. %         10            
Volume            6            
Wt of Surf        0.014            in Sample
% Surf.             0.208333      in Sample
Total Surf %     2.083333      Full strength

Experimenter         Marshall            
Date                       07/20/99
Client Type            Consultant            
SCL #                    99-7104-02-5
Test Type              Nonionic            
Cleaner Mfr           West Bend Cleaner
Product Name       Environmentally Sensitive Solutions ES-5000
Concentration Used    10            %
Drops Required          11            
Sample Size              10            mL
Wt of Surfactant          0.0308   grams
drop * f                       0.275      % by volume of nonionic surfactant
Dilution correction    10            
Total Surfactant        2.75            
Mfr            West Bend Cleaner
Product     Environmentally Sensitive Solutions ES-5000
Conc. %           10            
Volume            10            
Wt of Surf          0.0308          in Sample
% Surf.              0.275            in Sample
Total Surf %     2.75

Experimenter Marshall
Date 7/20/99
Client Type Consultant
SCL #  99-7104-02-5
Test Type  Nonionic
Cleaner Mfr  West Bend Influent
Product Name  Environmentally Sensitive Solutions ES-5000
Concentration Used  10 %
Drops Required  6
Sample Size  10 mL
Wt of Surfactant  0.0168 grams
drop * f  0.15 % by volume of nonionic surfactant
Dilution correction  10 
Total Surfactant  1.5
Mfr  West Bend Influent
Product  Environmentally Sensitive Solutions ES-5000
Conc. %  10
Volume   10
Wt of Surf  0.0168 in Sample
% Surf.  0.15 in Sample
Total Surf %  1.5 Full strength

Experimenter Marshall
Date   7/20/99
Client  Consultant
SCL #  99-7104-02-5
Test Type  Nonionic
Cleaner Mfr  West Bend Influent
Product Name  Environmentally Sensitive Solutions ES-5000
Concentration Used  10 %
Drops Required  8
Sample Size  12 mL
Wt of Surfactant  0.0224 grams
drop * f  0.167 % by volume of nonionic surfactant
Dilution correction  10
Total Surfactant  1.67
Mfr  West Bend Influent
Product  Environmentally Sensitive Solutions ES-5000
Conc. %  10
Volume  12
Wt of Surf  0.0224 in Sample
% Surf.  0.167 in Sample
Total Surf % 1.67  Full strength

Experimenter  Marshall
Date  7/20/99
Client Type  Consultant
SCL #  99-7104-02-5
Test Type  Nonionic
Cleaner Mfr  West Bend Influent 
Product Name  Environmentally Sensitive Solutions ES-5000
Concentration Used  10 %
Drops Required  9
Sample Size  14 mL
Wt of Surfactant  0.0252 grams
drop * f  0.161 % by volume of nonionic surfactant
Dilution correction  10
Total Surfactant  1.61
Mfr  West Bend Influent
Product  Environmentally Sensitive Solutions ES-5000
Conc. %  10
Volume   14
Wt of Surf  0.0252 in Sample
% Surf.  0.161 in Sample
Total Surf % 1.61 Full strength

Experimenter  Marshall
Date  7/20/99
Client Type  Consultant
SCL #  99-7104-02-5
Test Type  Nonionic
Cleaner Mfr  West Bend Effluent
Product Name  Environmentally Sensitive Solutions ES-5000
Concentration Used  10%
Drops Required  11
Sample Size  14 mL
Wt of Surfactant  0.0308 grams
drop * f  0.196  % by volume of nonionic surfactant
Dilution correction  10
Total Surfactant   1.96
Mfr  West Bend Effluent
Product  Environmentally Sensitive Solutions ES-5000
Conc. %  10
Volume   14
Wt of Surf  0.0308 in Sample
% Surf.  0.196 in Sample
Total Surf %  1.96 Full strength

Experimenter  Marshall
Date  7/20/99
Client Type  Consultant
SCL #  99-7104-02-5
Test Type  Nonionic
Cleaner Mfr  West Bend Effluent
Product Name  Environmentally Sensitive Solutions ES-5000
Concentration Used  10  %
Drops Required  14
Sample Size   16 mL
Wt of Surfactant  0.0392 grams
drop * f  0.219 % by volume of nonionic surfactant
Dilution correction  10
Total Surfactant     2.19
Mfr  West Bend Effluent
Product  Environmentally Sensitive Solutions ES-5000
Conc. %  10
Volume  16
Wt of Surf  0.0392 in Sample
% Surf  0.219 in Sample
Total Surf % 2.19  Full strength

Experimenter  Marshall
Date 7/20/99
Client	Consultant
Client Type	Consultant	
SCL #  99-7104-02-5
Test Type  Nonionic
Cleaner Mfr  West Bend Effluent
Product Name  Environmentally Sensitive Solutions ES-5000
Concentration Used  10%
Drops Required  13
Sample Size  16 mL
Wt of Surfactant  0.0364 grams
drop * f   0.203 % by volume of nonionic surfactant
Dilution correction  10
Total Surfactant  2.03
Mfr  West Bend Effluent
Product  Environmentally Sensitive Solutions ES-5000
Conc. %  10
Volume   16
Wt of Surf  0.0364  in Sample
% Surf.  0.203 in Sample
Total Surf %  2.03  Full strength


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.