Soil Microbial Characteristics and Mineral Nitrogen Availability as Affected by Olive Oil Waste Water Applied to Cultivated Soil

Gamba, C.; Piovanelli, C.; Papini, R.; Pezzarossa, B.; Ceccarini, Lucia; Bonari, E.

doi:10.1081/css-200050278

Cited by 32 publications

(16 citation statements)

References 14 publications

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“…The highest values (156–158 nmol PLFA g −1 soil) were obtained with the highest OMWW dosage, and the effect remained 3 months following OMWW application. Increased microbial counts and biomass in soils amended with OMWW were also reported in other studies 39, 40. Furthermore, a sudden increase of total organic carbon, extractable nitrogen and carbon, and available phosphorus contents was observed in soils after OMWW application;38 this fact was related to microorganism growth increase.…”

Section: Resultssupporting

confidence: 79%

Physico‐chemical and toxicological assessment of liquid wastes from olive processing‐related industries

et al. 2011

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Section: Resultssupporting

confidence: 79%

Physico‐chemical and toxicological assessment of liquid wastes from olive processing‐related industries

et al. 2011

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“…Reduction, significant increases or even no toxic effects of soil biological activity and plant yields have been observed (Benítez et al, 2005;Gamba et al, 2005;Piotrowska et al, 2006).…”

Section: Introductionmentioning

confidence: 97%

Changes in soil chemical and biochemical properties following amendment with crude and dephenolized olive mill waste water (OMW)

et al. 2011

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“…In addition, increasing the concentration of nitrogen generally has a negative effect on microbial biomass in soil, such as direct inhibition, resulting in soil imbalance. It also affects some plants and often they die [8].…”

Section: Introductionmentioning

confidence: 99%

Activation of Jordanian Bentonite by Hydrochloric Acid and Its Potential for Olive Mill Wastewater Enhanced Treatment

Al-Essa

2018

Journal of Chemistry

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Jordanian bentonite was activated by hydrochloric acid at room temperature. FTIR, XRD, TGA, and BET surface area analyses of the samples were carried out to examine the structure of bentonite before and after acid activation. It is found that the octahedral cations were removed, which altered the chemical composition of the bentonite. Difference of surface area was noticed (66.2 to 287.8 m 2 g −1 ), which was caused by structural changes in the bentonite. We aimed to investigate the effectiveness of activated bentonite in OMWW treatment. Batch and column techniques were applied. Crude and treated OMWW samples were characterized; physiochemical parameters, total phenolic compounds, and heavy metal ions concentrations were measured. Several parameters that affected the adsorption capacity were studied: the pH value of the solution, temperature, and the adsorbent dose. It was found that the maximum removal of total phenolic compounds and heavy metal ions (Zn, Fe, and Mn) was at pH 6. Adsorption capacity of phenolic compounds was enhanced with an increase in the temperature of the solution and also with the adsorbent dose. The optimum adsorbent concentration needed for the maximum removal of total phenolic compounds is 1 g of activated bentonite/0.01 L of OMWW. The percentage removal exceeded 99% for Zn, Fe, and Mn ions, while it reached 65.2 and 61.5 for K + and Na + ions, respectively. Finally, the percentage removal of pollutants was increased by using activated bentonite. This study will provide valuable insight into the effect of activated bentonite towards the treatment and recyclability of OMWW, which is essential for the local olive mill industry.

show abstract

Soil Microbial Characteristics and Mineral Nitrogen Availability as Affected by Olive Oil Waste Water Applied to Cultivated Soil

Cited by 32 publications

References 14 publications

Physico‐chemical and toxicological assessment of liquid wastes from olive processing‐related industries

Physico‐chemical and toxicological assessment of liquid wastes from olive processing‐related industries

Changes in soil chemical and biochemical properties following amendment with crude and dephenolized olive mill waste water (OMW)

Activation of Jordanian Bentonite by Hydrochloric Acid and Its Potential for Olive Mill Wastewater Enhanced Treatment

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