EFFECT OF TWO NONIONIC SURFACTANTS ON PENETRABILITY AND DIFFUSIVITY OF SOILS

THE BASIC PROBLEM OF WATER-REPELLANT SOILS ASSOCIATED WITH WATER FLOW IS A HIGH SOLID-LIQUID CONTACT ANGLE RESULTING IN LOW-INFILTRATION RATE OF SURFACTANT-FREE IRRIGATION WATER. FOR EFFICIENT USE SUCH SOILS NECESSITATE THE APPLICATION OF SURFACTANTS TO LOWER THE CONTACT ANGLE. THE WORKING HYPOTHESIS FOR THE EFFECTIVENESS OF THE SURFACTANTS TO INCREASE THE INFILTRATION RATE IN SUCH SOILS IS DISCUSSED. EQUATIONS ARE PRESENTED. THE EFFECT OF TWO NONIONIC SURFACTANTS ON WATER-PENETRABILITY AND WATER DIFFUSIVITY IN SOILS WAS STUDIED. EQUILIBRIUM CONTACT ANGLES OBTAINED ARE TABULATED. PENETRABILITIES OF VARIOUS SURFACTANT SOLUTIONS IN TWO SOILS ARE TABULATED. A PRINCIPAL BENEFICIAL EFFECT OF SURFACTANT SOLUTION IN INCREASING INFILTRATION INTO WATER-REPELLANT SOILS IS TO MORE COMPLETELY MOISTEN THE SOIL AND INCREASE THE HYDRAULIC CONDUCTIVITY OF THE WATER TRANSMISSION ZONE.

  • Supplemental Notes:
    • Vol 3, No 2, PP 95-100, 4 FIG, 3 TAB, 9 REF
  • Authors:
    • Mustafa, M A
    • Letey, J
  • Publication Date: 1971-2

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Filing Info

  • Accession Number: 00237959
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 25 1971 12:00AM