Spectrophotometric Determination of Alkyl Benzenesulfonate Detergents in Surface Water and Sewage

Fairing, J. D.; Short, F. R.

doi:10.1021/ac60120a008

Cited by 24 publications

(6 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The time required to reach equilibrium obviously depends on particle size, agitation, and other rate factors. The order of magnitude experienced in this work (3,5,5,7, and 11 days for beachsand, greensand, sandstone, loess, and arkose, respectively) was approximately the same as the 6 + days for carbon (17), the several days to several weeks reported for clays by Suess (10), or the range of values reported by Wayman, Page, and Robertson, which were 2 days for Ottawa sand (14) and 12+ days for kaolinite (16). Time requirements as low as a few hours have been reported for carbon (7) and Ottawa sand (4).…”

supporting

confidence: 80%

“…cell. For the 5 to 30 mg. of DDBS per liter range, it was: C = (26.9A/L) f 0.13 mg. per liter (5) The notation is t,he same described in the text near Equation 1. This UV measurement method is more sensitive and more precise for binary mixtures of DDBS and water than the methylene blue method.…”

Section: Append Ix-ultraviolet Analysismentioning

confidence: 99%

“…Analysis. The methylene blue method (1,3,8,5,13) was chosen for analyzing the equilibrium liquid phase sample because the chloroform extraction step avoids the interference probelm involved in the direct utltraviolet method (See Appendix). For consistency, the liquid phase sample at initial conditions was analyzed by the same method.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Adsorption of Dodecylbenzenesulfonate on Earth Sediments. Liquid-Solid Phase Equilibrium.

Tallmadge¹,

Tan²

1966

J. Chem. Eng. Data

View full text Add to dashboard Cite

The adsorption isotherms of sodium dodecylbenzenesulfonate in water on four unconsolidated and three consolidated earth sediments were measured at room temperature) the solution concentration at equilibrium ranged from 1 to 87 mg. per liter. Consolidated minerals were tested as 50-80 mesh particles, obtained by crushing and screening the rocks. Relative adsorptivities for the linear isotherms found in the low concentration region were, in increasing order: loess, sandstone, beachsand, arkose, limestone, silt, and greensand. Nonlinear isotherms were observed at higher concentrations with three of the sediments. Beachsand and sandstone were At by Langmuir and Freundlich isotherms, respectively, but the loess isotherm had a relative adsorptivity which increased with concentration. Loess data were not At by any of these isotherms. THE SYSTEMS dodecylbenzenesulfonate-earth sedimentswere studied in connection with problems in pollution of groundwater by detergents. Specifically, equilibrium isotherms were measured and described.Previous workers have described nlkylbenzenesulfonate (ABS) adsorption on some solids as linear over wide ranges (6), as similar to that which follows the Freundlich isotherm ( I O ) , or as that determined by extrapolation ( 7 ) . The data for ABS adsorption reported in this paper also serve to illustrate several well-known limitations to these special-case approaches.Mass transfer rates are frequently proportional to the difference between the actual and equilibrium concentrationi.e., the concentration driving force. For this reason, equilibrium isotherms are useful in analyzing rate data using techniques developed for ion exchange and other fixed bed systems. For example, isotherms similar to those reported here would be useful in improving the interpretaton of the column elution data of Wayman, Page, and Robertson (16) and the adsorption rate data of Weber and Morris (I?'). EXPERIMENTALMaterials. The properties of the surfactant agent used, Sacconol NRSF, are available elsewhere (2) ; it contained 92.5 70 active sodium dodecylbenzenesulfonate (DDBS) . The compound DDBS was used because ABS is the essential ingredient in "hard" detergents and because the largest volume production of ABS involves DDBS.The seven earth sediments tested are shown in Table I. The unconsolidated sediments were chosen as representative of sediments found in the zone of aeration and the upper zone of saturation of groundwaters; the consolidated sediments were chosen a9 representative of the sedimentary rocks which are most !ire\ alent on the earth's crust through which groundwater percolates. Shale was not included because of its relatively impervious nature.Procedure. A predetermined amount of sediment (30, 60, or 100 grams weighed to 0.1 mg.) was mixed with an aqueous DDBS solution of predetermined volume (75 to 200 ml.) and concentration (5 to 100 mg. per liter) in a 500-ml. bottle and agitated for 3 hours with a stirrer (11).Considerable time was then allowed to ensure that the mixture had reached equilibrium-a t...

show abstract

supporting

confidence: 80%

Section: Append Ix-ultraviolet Analysismentioning

confidence: 99%

See 1 more Smart Citation

Adsorption of Dodecylbenzenesulfonate on Earth Sediments. Liquid-Solid Phase Equilibrium.

Tallmadge¹,

Tan²

1966

J. Chem. Eng. Data

View full text Add to dashboard Cite

show abstract

“…Fairing and Short (12) used methylene blue in a eolorimetric approach to determine traces of alkyl benzene sulfonates in water and sewage.…”

Section: Anionicsmentioning

confidence: 99%

Recent advances in the analysis of soaps and synthetic detergents

Siggia

1958

J Americ Oil Chem Soc

View full text Add to dashboard Cite

Nov., ]958 MCCUTCHEON: SPRAY DRYING 643 temperatures controlled by the heat of the incoming soap. The product is continuously scraped from the walls of the chamber and fed to a plodder for extrusion in bar form.In summary, spray drying of soaps and detergents in bead form has been discussed at some length, coneluding with a variety of spray systems desigued principally for nonpuffed products and suitable for industrial use. The Mazzoni vacuum spray-dryer for toilet soap is mentioned.

show abstract

“…The traditional methylene-blue (MB) colorimetric method [1][2][3] is widely used for the determination of the total amount of anionic surfactants in water samples. However, this method has many technical disadvantages, as follows: the extractability of the AS-MB ion pairs is poor, requiring multiple extractions; the MB dye is unstable in aqueous solution, requiring a preliminary refinement; the working environment is harmful, consuming a large amount of chloroform; the MB method is unspecific for ASs, resulting in total MB-active substances; and MB can be fatally adsorbed to glass surfaces.…”

Section: Introductionmentioning

confidence: 99%

Spectrometric Determination of Anionic Surfactants in Environmental Waters Based on Anisole Extraction of Their Bis[2-(5-chloro-2-pyridylazo)-5-diethylaminophenolato]cobalt(III) Ion Pairs

2011

View full text Add to dashboard Cite

Spectrophotometric Determination of Alkyl Benzenesulfonate Detergents in Surface Water and Sewage

Cited by 24 publications

References 25 publications

Adsorption of Dodecylbenzenesulfonate on Earth Sediments. Liquid-Solid Phase Equilibrium.

Adsorption of Dodecylbenzenesulfonate on Earth Sediments. Liquid-Solid Phase Equilibrium.

Recent advances in the analysis of soaps and synthetic detergents

Spectrometric Determination of Anionic Surfactants in Environmental Waters Based on Anisole Extraction of Their Bis[2-(5-chloro-2-pyridylazo)-5-diethylaminophenolato]cobalt(III) Ion Pairs

Contact Info

Product

Resources

About