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פותח על ידי קלירמאש פתרונות בע"מ -
Impact of spreading olive mill waste water on agricultural soils for leaching of metal micronutrients and cations
Year:
2017
Source of publication :
Chemosphere
Authors :
אהרונוב-נדבורני, רגינה
;
.
גרבר, אלן
;
.
צ'חנסקי, לודמילה
;
.
רביב, מיכאל
;
.
Volume :
179
Co-Authors:
Facilitators :
From page:
213
To page:
221
(
Total pages:
9
)
Abstract:

Olive mill waste water (OMWW) is an acidic (pH 4–5), saline (EC ∼ 5–10 mS cm−1), blackish-red aqueous byproduct of the three phase olive oil production process, with a high chemical oxygen demand (COD) of up to 220,000 mg L−1. OMWW is conventionally disposed of by uncontrolled dumping into the environment or by semi-controlled spreading on agricultural soils. It was hypothesized that spreading such liquids on agricultural soils could result in the release and mobilization of indigenous soil metals. The effect of OMWW spreading on leaching of metal cations (Na, K, Mg, Mn, Fe, Cu, Zn) was tested in four non-contaminated agricultural soils having different textures (sand, clay loam, clay, and loam) and chemical properties. While the OMWW contributed metals to the soil solution, it also mobilized indigenous soil metals as a function of soil clay content, cation exchange capacity (CEC), and soil pH-buffer capacity. Leaching of soil-originated metals from the sandy soil was substantially greater than from the loam and clay soils, while the clay loam was enriched with metals derived from the OMWW. These trends were attributed to cation exchange and organic-metal complex formation. The organic matter fraction of OMWW forms complexes with metal cations; these complexes may be mobile or precipitate, depending on the soil chemical and physical environment.

Note:
Related Files :
agricultural wastes
cation exchange
complex formation
Metals
olive mill wastewater
OMWW
soil
Soil spreading
עוד תגיות
תוכן קשור
More details
DOI :
https://doi.org/10.1016/j.chemosphere.2017.03.093
Article number:
0
Affiliations:
Database:
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
50788
Last updated date:
02/03/2022 17:27
Creation date:
12/10/2020 09:43
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Scientific Publication
Impact of spreading olive mill waste water on agricultural soils for leaching of metal micronutrients and cations
179
Impact of spreading olive mill waste water on agricultural soils for leaching of metal micronutrients and cations

Olive mill waste water (OMWW) is an acidic (pH 4–5), saline (EC ∼ 5–10 mS cm−1), blackish-red aqueous byproduct of the three phase olive oil production process, with a high chemical oxygen demand (COD) of up to 220,000 mg L−1. OMWW is conventionally disposed of by uncontrolled dumping into the environment or by semi-controlled spreading on agricultural soils. It was hypothesized that spreading such liquids on agricultural soils could result in the release and mobilization of indigenous soil metals. The effect of OMWW spreading on leaching of metal cations (Na, K, Mg, Mn, Fe, Cu, Zn) was tested in four non-contaminated agricultural soils having different textures (sand, clay loam, clay, and loam) and chemical properties. While the OMWW contributed metals to the soil solution, it also mobilized indigenous soil metals as a function of soil clay content, cation exchange capacity (CEC), and soil pH-buffer capacity. Leaching of soil-originated metals from the sandy soil was substantially greater than from the loam and clay soils, while the clay loam was enriched with metals derived from the OMWW. These trends were attributed to cation exchange and organic-metal complex formation. The organic matter fraction of OMWW forms complexes with metal cations; these complexes may be mobile or precipitate, depending on the soil chemical and physical environment.

Scientific Publication
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