Temat: heavy clay soil - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Soil water, solute storage and drainage in a deeply loosened, heavy-clay soil of Southern Romania
Autorzy:: Paltineanu, C.
Powiązania:: https://bibliotekanauki.pl/articles/25993.pdf
Data publikacji:: 2003
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: soil water flux
soil water
Romania
internal drainage
heavy clay soil
leaching
water flux
drainage
solute storage
Źródło:: International Agrophysics; 2003, 17, 3
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Removing Heavy Metals through Different Types of Soils and Marble Powder found in Oman
Autorzy:: Wazwaz, Aref
Al-Salaymeh, Ahmed
Khan, Mohd Shariq
Powiązania:: https://bibliotekanauki.pl/articles/124676.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: adsorption
potable water
silty soil
sandy soil
clay soil
marble powder
heavy metals removal
Opis:: In this research, adsorption followed by filtration was used for removing heavy metals (Cu, Zn, Mn, and Cr) from the polluted water. Three types of soils (silty, sandy and clay) and three types of marble powder (pure, impure, marble-granite mix) were used as an adsorbent. The soil and marble samples were collected from different regions of Oman. The maximum adsorption obtained was 96.01% for Zn using pure marble powder and the minimum adsorption obtained was 6.70% for Mn using impure marble powder. Through different soils, the maximum adsorption of 88.61% was achieved for Zn using clay and the lowest one is for Cr 16.51% using silty soil. The results suggest that among the marble powders, the pure ones show the maximum (96.01% for Zn) and marble-granite show the minimum (Mn 6.70%) adsorption performance. Among the adsorbents, Zn is the best adsorbate (96.01%) while the worst among the group is Mn, which merely adsorbed 6.70% with the selected adsorbents.
Źródło:: Journal of Ecological Engineering; 2019, 20, 4; 136-142
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Nigerian lateritic clay soils as hydraulic barriers to adsorb metals. Geotechnical characterization and chemical compatibility
Autorzy:: Ojuri, O. O.
Akinwumi, I. I.
Oluwatuyi, O. E.
Powiązania:: https://bibliotekanauki.pl/articles/208070.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: glina
metale ciężkie
gleba
przewodnictwo elektryczne
Nigeria
clay
heavy metals
soil
electrical conductivity
Opis:: The suitability of using lateritic clays from Aviele and Igarra has been investigated both in the Northern part of Edo state, Nigeria as liners of an engineered landfill and to adsorb metals in leachates. Geotechnical characteristics, pH, and elemental composition for the lateritic clay samples were determined. The chemical composition, pH, total dissolved solids and electrical conductivity were determined for leachates collected from two dumpsites. The capacities of the lateritic clay soils to adsorb heavy metals in the leachates were determined using the batch equilibrium adsorption technique. The unconfined compressive strength (UCS) of soils were found to be sufficient to resist damage. By both the standard and modified Proctor compaction tests, it was found that the coefficients of permeability for the soil samples were lower than 1×10–9 m/s that is widely recommended for soils that are to be used as landfill liners. Pb²⁺, Zn²⁺ and Cr²⁺ were the heavy metals in the leachates. The sorption selectivity order for tested soils depended on the soil type and properties.
Źródło:: Environment Protection Engineering; 2017, 43, 4; 209-222
0324-8828
Pojawia się w:: Environment Protection Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The role of free iron oxides in the association of lead and cadmium in gleyic phaeozems [black earths]
Autorzy:: Dabkowska-Naskret, H
Powiązania:: https://bibliotekanauki.pl/articles/1450860.pdf
Data publikacji:: 2001
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: organic matter
iron oxide
soil component
lead
adsorption
association
soil
cadmium
clay mineral
terrestrial ecosystem
black earth
toxic metal
heavy metal
Opis:: Twelve samples, collected from four pedons of cultivated soils (black earths) were analyzed by sequential extraction to characterize the role of free iron oxides in the association of lead and cadmium. Amounts of lead and cadmium retained varied from 11 to 89.3% of the total Pb and from 4.8 to 48.7% of the total Cd. Metals associated with amorphous Fe oxides are at least ten times higher than with crystalline Fe forms. Under the existing soil conditions (high pH and CaCO3 content) free iron oxides are components of great importance in the Pb and Cd binding process. However, the results may indicate a stronger association of Pb than Cd with iron oxides in the studied black earths.
Źródło:: Acta Agrophysica; 2001, 50; 105-111
1234-4125
Pojawia się w:: Acta Agrophysica
Dostawca treści:: Biblioteka Nauki

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