Temat: residues - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Changes in some chemical properties of saline-sodic soils over time as affected by organic residues: An incubation study
Autorzy:: Jalali, Mohsen
Saeedi Lotf, Maryam
Ranjbar, Faranak
Powiązania:: https://bibliotekanauki.pl/articles/2088205.pdf
Data publikacji:: 2020
Wydawca:: Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:: salinity
sodicity
agricultural residues
bioremediation
incubation
Opis:: Salinization and sodification of agricultural lands in arid and semi-arid regions of the world are two limiting factors in the crop production. This study was conducted to evaluate the effect of readily available agricultural residues on changing some chemical properties of saline-sodic soils. Wheat, potato, sunflower, and canola residues were separately added into three saline-sodic soils at a rate of 2% by weight and thoroughly mixed with soils. Control and treated soils were incubated for 168 days at a constant moisture and temperature. The pH, electrical conductivity (EC), soluble cations, available nitrate (NO3-) and phosphorous (P), cation exchange capacity (CEC), and exchangeable sodium percentage (ESP) were measured during the incubation. The EC increased in the response to the incorporation of plant residues, whereas the pH was reduced. The application of organic components in soils increased CEC and decreased ESP. The results showed that the maximum reduction in ESP was observed in the potato treatment because of the highest Ca2+ concentration. The average reduction in ESP of treated soil samples at the end of incubation followed this order: 16.1% (potato residue-treated soil) >12.7% (canola residue-treated soil) >11.1% (wheat residue-treated soil) >9.6% (sunflwer residue-treated soil). The potato residue was the most effective amendment in changing the chemical properties of saline-sodic soils in comparison with other organic residues. The results indicated that the application of organic residues had a positive impact on reducing the soil sodicity and improving the soil fertility depending on their chemical composition.
Źródło:: Polish Journal of Soil Science; 2020, 53, 1; 1-20
0079-2985
Pojawia się w:: Polish Journal of Soil Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Changes in some chemical properties of saline-sodic soils over time as affected by organic residues: an incubation study
Autorzy:: Jalali, M.
Lotf, M.S.
Ranjbar, F.
Powiązania:: https://bibliotekanauki.pl/articles/971127.pdf
Data publikacji:: 2020
Wydawca:: Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:: salinity
sodicity
agricultural residues
bioremediation
incubation
Opis:: Salinization and sodification of agricultural lands in arid and semi-arid regions of the world are two limiting factors in the crop production. This study was conducted to evalu- ate the effect of readily available agricultural residues on changing some chemical properties of saline-sodic soils. Wheat, potato, sunflower, and canola residues were separately added into three saline-sodic soils at a rate of 2% by weight and thoroughly mixed with soils. Control and treat- ed soils were incubated for 168 days at a constant moisture and temperature. The pH, electrical conductivity (EC), soluble cations, available nitrate (NO 3 -) and phosphorous (P), cation exchange capacity (CEC), and exchangeable sodium percentage (ESP) were measured during the incuba- tion. The EC increased in the response to the incorporation of plant residues, whereas the pH was reduced. The application of organic components in soils increased CEC and decreased ESP. The results showed that the maximum reduction in ESP was observed in the potato treatment because of the highest Ca2+ concentration. The average reduction in ESP of treated soil samples at the end of incubation followed this order: 16.1% (potato residue-treated soil) >12.7% (canola residue-treated soil) >11.1% (wheat residue-treated soil) >9.6% (sunflower residue-treated soil). The potato residue was the most effective amendment in changing the chemical properties of saline-sodic soils in comparison with other organic residues. The results indicated that the appli- cation of organic residues had a positive impact on reducing the soil sodicity and improving the soil fertility depending on their chemical composition.
Źródło:: Polish Journal of Soil Science; 2020, 53, 1
0079-2985
Pojawia się w:: Polish Journal of Soil Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Comparative assessment of Al2O3 modified biomasses from agricultural residues for nickel and cadmium removal
Autorzy:: Herrera-Barros, Adriana
Tejada-Tovar, Candelaria
Gonzalez-Delgado, Angel D.
Powiązania:: https://bibliotekanauki.pl/articles/1844335.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: adsorption
agricultural residues
alumina nanoparticles
cellulose
heavy metal ions
Opis:: The biodiversity of aqueous environments has been affected due to the disposal of wastewater highly contaminated with heavy metal ions, causing much damage to ecosystems. These pollutants are very toxic and bioaccumulate in living organisms. This work attempts to evaluate the adsorption of nickel ad cadmium ions using three biomasses from agricultural residues (corn cob – CC, orange peel – OP, and oil palm bagasse – PB) modified with alumina nanoparticles. The biomasses were characterized via compositional analysis and a point of zero charges to quantify the presence of lignin, cellulose, hemicellulose, and the feasible pH, taking advantage of the biomass charge. After modification with Al2O3 nanoparticles. The resulting adsorbents were characterized via FT-IR analysis to identify the functional groups that most contributed to the adsorption performance. Furthermore, the influence of Al2O3 nanoparticles was analysed on the adsorption capacities of the evaluated biomasses using batch systems at a temperature of 25°C and pH 6. All biomasses displayed a high content of cellulose, estimating a weight percentage of about 19.9%, 14.3%, and 13.1% for PB, OP, and CC samples, respectively. The FT-IR spectrum confirmed hydroxyl and carboxyl functional groups, which contribute to enhancing the adsorption capacities of the modified biomasses. Functional adsorption capacity was observed for all biomasses after modification with Al2O3 nanoparticles, achieving at pH 6.0 a cadmium removal from 92% (CC-Al2O3 and PB-Al2O3) up to 95.8±0.3% (OP-Al2O3). In nickel ions, it was estimated a broader adsorption capacity at pH 6.0 of about 86±0.4% after using the CC-Al2O3 sample, 88±0.1% for the PB-Al2O3 adsorbent, and 98±0.2% for the OP-Al2O3 sample, confirming the suitability of these Al2O3-modified biomasses for the removal of heavy metal ions.
Źródło:: Journal of Water and Land Development; 2021, 49; 29-34
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Rapeseed biomass -– a renewable source of energy - current state and development perspectives
Biomasa rzepakowa odnawialnym źródłem energii - stan obecny i perspektywy rozwoju
Autorzy:: Leśmian-Kordas, R.
Bojanowska, M.
Powiązania:: https://bibliotekanauki.pl/articles/359399.pdf
Data publikacji:: 2010
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:: biomasa
uboczne produkty rolne
rzepak
współspalanie
biowęgiel
biomass
agricultural residues
rape seed
co-firing
biochar
Opis:: In the article there have been presented the current state and perspectives in the scope of using rapeseed biomass, with particular consideration of solid biodegradable by-products of the technology of obtaining oils-expellers and rapeseed meal. Rapeseed biomass has been characterised with respect to its technological properties essential in combustion processes, both after conversion into bio-char and bio-oil and with respect to its raw, unprocessed form. The reasonableness of applying this kind of agrobiomass in co-combustion with minable fuels has been shown, resulting from conditions of agricultural production, increasing rapeseed production and by-products, with their incomplete use in the land, in view of the obligatory increased participation of biomass in the structure of fuels applied for producing electric and heat energy. The current state of agrobiomass supply logistics to the boiler plant has been analysed, pointing out its significance in shaping demand satisfaction for biomass using rapeseed waste products.
W artykule przedstawiono stan obecny oraz perspektywy w zakresie wykorzystania biomasy rzepakowej, ze szczególnym uwzględnieniem stałych biodegradowalnych produktów ubocznych technologii otrzymywania olejów - wytłoków oraz śruty rzepakowej. Scharakteryzowano biomasę rzepakową pod kątem jej właściwości technologicznych istotnych w procesach spalania, zarówno po konwersji do biowęgla i bioleju, jak również w odniesieniu do jej postaci surowej, nieprzetworzonej. Wykazano racjonalność stosowania tego rodzaju agrobiomasy w procesach współspalania z paliwami kopalnymi, wynikającą z uwarunkowań produkcji rolniczej, wzrastającej produkcji rzepaku oraz produktów pochodnych, przy ich niepełnym wykorzystaniu w kraju, wobec obligatoryjnego zwiększania udziału biomasy w strukturze paliw stosowanych do wytwarzania energii elektrycznej i cieplnej. Przeanalizowano aktualny stan logistyki dostaw agrobiomasy do kotłowni, wskazując na jej znaczenie w kształtowaniu stopnia zaspokojenia popytu na biomasę z wykorzystaniem odpadowych produktów rzepakowych
Źródło:: Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2010, 24 (96); 17-24
1733-8670
2392-0378
Pojawia się w:: Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:: Biblioteka Nauki

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