PERSULFATE OXIDATlON OF HUMIC ACIDS EXTRACTED FROM THREE DIFFERENT SOILS
نویسندگان
چکیده
Sammary-nree soil humic' aelds were degraded by a new mild chemical oxidatioo me!hod usiog potassium persulfate at pH 2.0. The melbod degraded 30-40"/0 of!he staning material. n. type and relative quantities of tbe products or fragments released as detennined by GC¡MS varíed with the source of lbe polymers. Humic aeld extracted from ao Inceptisol yielded fatty, benzenecarboxylic and pbenolic aelds; humic aeíd from a Typic Chromoxeren produccd largely díalkyl phthalates, and bumic aeíd from an Humic Haplonhod gave only branched and straight-<:hain fatty aelds. Jt is suggested that the rnethod may be used lo advantage as a first oxidant in a sequentiaJ degradation.
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