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Interactions of Organic Compounds with Wastewater Dissolved Organic Matter

Role of Hydrophobic Fractions

Talli Ilania, Elke Schulzb and Benny Chefetza,*

a Department of Soil and Water Sciences, Faculty of Agricultural, Food and Environmental Quality Sciences, The Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel
b Department Soil Sciences, UFZ Centre for Environmental Research Leipzig-Halle Ltd., Theodor-Lieser-Str. 4, Halle/Saale 06120, Germany



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Fig. 1. Absorbance Fourier transform infrared (FTIR) spectra of the bulk hydrophobic acid fractions (HoA-bulk, right side) and bulk hydrophobic neutral fractions (HoN-bulk, left side) isolated from Netanya (top) and Lachish (middle) treated wastewaters, and from compost water extract (bottom).

 


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Fig. 2. Absorbance Fourier transform infrared (FTIR) spectra of the >1000-Da fractions isolated from the wastewater samples; hydrophobic acid fractions (HoA, right side) and hydrophobic neutral fractions (HoN, left side).

 


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Fig. 3. Sorption isotherms of atrazine to >1000-Da samples from Netanya and Lachish treated wastewaters, and from compost water extract. Bars represent standard deviation. HoA, hydrophobic acid; HoN, hydrophobic neutral; DOM, dissolved organic matter.

 


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Fig. 4. Sorption isotherms of ametryn to >1000-Da samples from Netanya and Lachish treated wastewaters, and from compost water extract. Bars represent standard deviation. HoA, hydrophobic acid; HoN, hydrophobic neutral.

 





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