The toxicity of Olive Mill Wastewaters (OMW) is commonly attributed to monomeric phenols. OMW were treated in an aerated, stirred reactor containing agricultural soil where the oxidative polymerization of phenols took place. In 24 h, OMW monomeric phenols decreased by more than 90%. This resulted in a corresponding reduction in phytotoxicity, as measured by germination tests with tomato and English cress seeds, and in microbial toxicity, as measured by lag phase duration in Bacillus cereus batch growth. Soil germination capability after irrigation with OMW was assessed in long-term pot experiments. The relative germination percentage of tomato was higher when the soil was irrigated with treated OMW rather than with untreated ones, although it was lower than the control (e.g. soil irrigated with distilled water). At longer incubation times, a complete recovery of the soil germination capability was achieved with treated, but not with untreated OMW.

Mitigation of olive mill wastewaters toxicity / Greco, Guido; Colarieti, MARIA LETIZIA; Toscano, Giuseppe; Iamarino, Giuseppina; Rao, MARIA ANTONIETTA; Gianfreda, Liliana. - In: JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. - ISSN 0021-8561. - STAMPA. - 54:(2006), pp. 6776-6782. [10.1021/jf061084j]

Mitigation of olive mill wastewaters toxicity

GRECO, GUIDO;COLARIETI, MARIA LETIZIA;TOSCANO, GIUSEPPE;IAMARINO, GIUSEPPINA;RAO, MARIA ANTONIETTA;GIANFREDA, LILIANA
2006

Abstract

The toxicity of Olive Mill Wastewaters (OMW) is commonly attributed to monomeric phenols. OMW were treated in an aerated, stirred reactor containing agricultural soil where the oxidative polymerization of phenols took place. In 24 h, OMW monomeric phenols decreased by more than 90%. This resulted in a corresponding reduction in phytotoxicity, as measured by germination tests with tomato and English cress seeds, and in microbial toxicity, as measured by lag phase duration in Bacillus cereus batch growth. Soil germination capability after irrigation with OMW was assessed in long-term pot experiments. The relative germination percentage of tomato was higher when the soil was irrigated with treated OMW rather than with untreated ones, although it was lower than the control (e.g. soil irrigated with distilled water). At longer incubation times, a complete recovery of the soil germination capability was achieved with treated, but not with untreated OMW.
2006
Mitigation of olive mill wastewaters toxicity / Greco, Guido; Colarieti, MARIA LETIZIA; Toscano, Giuseppe; Iamarino, Giuseppina; Rao, MARIA ANTONIETTA; Gianfreda, Liliana. - In: JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. - ISSN 0021-8561. - STAMPA. - 54:(2006), pp. 6776-6782. [10.1021/jf061084j]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/302536
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