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Wyszukujesz frazę "agricultural wastes" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Evaluation of selected agricultural wastes as viable sources of vitamin supplements in poultry feeds
Autorzy:
Enenebeaku, C. K.
Enenebeaku, U. E.
Ezejiofor, T. I. N.
Powiązania:
https://bibliotekanauki.pl/articles/1109531.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
agricultural wastes
poultry feeds
vitamins
Opis:
The vitamin content of selected agricultural wastes was evaluated as supplements in poultry feeds. The agricultural wastes considered in this study include; cassava bagasse, beans coat, pineapple peel, avocado pear seed, watermelon peel, fluted pumpkin stalk, potato peel, Mix. A - mixture of all wastes (ratio, 1:1:1), Mix. B - mixture of bean jackets, avocado pear seed and potato peel (ratio, 1:1:1). The vitamins considered were Vitamin A, Vitamin D, Vitamin B12, Vitamin E, Vitamin K, Pantothenic acid, Niacin, Biotin and Pyridoxine. Cassava bagasse gave the highest amount of vitamin A (0.36±0.06 mg/l), whereas this vitamin was totally absent in fluted pumpkin stalk. This waste also gave the highest amount of vitamin E (0.99±0.21 mg/l). The highest amount of vitamin D (10.35±0.21 mg/l) was obtained from watermelon peel, while the highest amount of vitamin B12 (0.08±0.04 mg/l) was gleaned from a mixture of all the wastes (Mix. A). The wastes were quite low in vitamin K - herein, Mix. B (bean jackets, avocado pear seed, and potato peel) gave the highest amount (2.36±0.16 mg/l). Finally, pineapple peel gave the highest amount of pantothenic acid (8.55±0.35 mg/l), niacin (5.95±0.53 mg/l), biotin (0.08±0.03 mg/l), as well as pyridoxine (2.45±0.55 mg/l). These results were compared with the standards required for feed formulation for different categories of poultry birds. Our findings revealed that these agro-wastes contain vitamin levels that did not differ significantly from the standards required for feed formulation for different categories of poultry birds. Hence, they can serve as good supplements for vitamins in poultry feeds. Harnessing the vitamin contents of these wastes as supplements in poultry feed will increase animal production and ensure food security in terms of protein supply.
Źródło:
World News of Natural Sciences; 2018, 20; 103-120
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chemical Interactions to Cleanup Highly Polluted Automobile Service Station Wastewater by Bioadsorption-Coagulation-Flocculation
Autorzy:
Banchon, C.
Castillo, A.
Posligua, P.
Powiązania:
https://bibliotekanauki.pl/articles/124468.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
adsorption
agricultural wastes
bagasse
coconut coir
sawdust
sludge
Opis:
The present study addresses an ecofriendly solution to treat automobile service stations effluents with high concentrations of oily substances, surfactants, organic matter and heavy metals. Bioadsorption using sawdust from pine trees, sugar cane bagasse and coconut coir without any chemical modification removed colloidal contamination up to 70%. Polyaluminium chloride, ferric chloride and polyacrylamide were applied to remove dissolved and colloidal pollutants under saline conditions without change of initial pH. Both bioadsorption and coagulation-flocculation removed up to 97.8% of BOD, COD, surfactants and heavy metals at a saline concentration of 1.5% NaCl. The increase of ionic strength promoted a high sludge index and a representative cost saving in chemicals consumption of almost 70%. High levels of pollution removal with the minimal use of chemicals is herein presented.
Źródło:
Journal of Ecological Engineering; 2017, 18, 1; 1-10
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gaseous pollutant emissions from burning animal by-products
Autorzy:
Bujak, J.
Powiązania:
https://bibliotekanauki.pl/articles/208050.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
agricultural wastes
animals
carbon
heavy metals
nitrogen oxides
sulfur dioxide
waste treatment
odpady rolne
zwierzęta
produkty uboczne
metale ciężkie
tlenki azotu
dwutlenek siarki
unieszkodliwianie odpadów
Opis:
Gaseous emissions during thermal animal waste treatment in a meat production plant have been determined. A dry flue gas system with a multisectional bag filter was installed at a meat production plant. Animal waste was incinerated in a rotary kiln, the capacity of the plant was 700 kg/h. The average thirty-minute (1352 samples) emission values of volatile dust, total organic carbon (TOC), hydrogen chloride (HCl), hydrogen fluoride (HF), sulfur dioxide (SO2), nitrogen oxide (NO), nitrogen dioxide (NO2) and carbon oxide (CO) were obtained during a study period of 1 month. Specific samples were collected to determine dioxin, furane, heavy metal, mercury, cadmium and thallium concentrations. Histograms of the obtained results were prepared, and the results were compared with the permissible emission levels defined by the European Union. Additionally, justification was provided when the observed values exceeded the levels defined by the European Union.
Źródło:
Environment Protection Engineering; 2016, 42, 3; 125-141
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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