Temat: Calcium - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Kinetic Study of Adsorption of Metal Ions (Iron and Manganese) in Groundwater Using Calcium Carbide Waste
Autorzy:: Karim, Muhammad Arief
Nasir, Subriyer
Widowati, Tri Wardani
Hasanudin, Udin
Powiązania:: https://bibliotekanauki.pl/articles/24201681.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: calcium carbide residual
iron
manganese
groundwater
Opis:: Calcium carbide waste (CCW), the rest of the carbide welding workshop industry, is available in quite a lot and is immediately disposed of into the environment. Because CWW has a high pH value and a large specific surface area, it can act as an adsorbent in removing metals from groundwater. The content of metals in groundwater is indicated by a reddish color; however, upon contact with air, groundwater oxidation causes iron ions and manganese ions to precipitate. Synthetic groundwater was prepared in this experiment using reagents containing and . Observations were made in a batch process to assess the potential and ability of CCW to reduce iron and manganese levels in groundwater. In this study, to achieve equilibrium, CCW was mixed with 100 mL of synthetic solution and shaken at 25°C with a shaker. Operating time, levels of Fe(II) and (Mn(II) metals, and the mass of CCW were some of the parameters studied in this study. CCW was very good at reducing levels of iron ions and manganese ions after 60 minutes of operation. The percentage of removal of iron and manganese ions respectively – successively increased from 93.765 to 97.99% for iron ions and manganese ions from 91.83 to 95.14% for the initial concentration range of 40 mg/L, 60 mg/L, 80 mg/L, and 100 mg/L. Furthermore, the adsorption kinetics of CCW adsorbent in a mixture of iron ion and manganese ion solutions is a second-order kinetic equation. This confirms that the adsorption of CCW on iron ions and manganese ions is a chemisorption process. Calcium carbide waste has the potential to act as an absorbent of heavy metals in groundwater, especially iron and manganese ions.
Źródło:: Journal of Ecological Engineering; 2023, 24, 5; 155--165
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Multifunctional Coagulants Based on Hidrocarboaluminates Calcium
Autorzy:: Sizyakova, E. V.
Ivanov, P. V.
Powiązania:: https://bibliotekanauki.pl/articles/124466.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: hidrocarboaluminates calcium
water treatment
coagulant
ion exchanger
Opis:: The article describes harmful factors from the environmental point of view that accompany almost all stages of the production of non-ferrous metals. Due to the fact that this industry requires large volume of water, these factors require special attention when cleaning wastewater. The contamination of wastewater by non-ferrous metallurgy is characterized by metal ions, particulate pollutants, acids, SAS, etc. A common feature of all these substances is harmfulness, however, they are often very aggressive and toxic. The article focuses on the possible use of hidrocarboaluminates calcium as an active ion exchanger for cleanup wastewater metallurgical production.
Źródło:: Journal of Ecological Engineering; 2017, 18, 2; 16-20
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Hydrogeological Assessment of the Mineral Composition of the Bottled Waters Available For Sale in Poland
Autorzy:: Porowska, Dorota
Powiązania:: https://bibliotekanauki.pl/articles/124939.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: mineral composition
bottled waters
calcium
magnesium
fluorides
Opis:: The choice of bottled waters available for sale is large. The assessment of their mineral composition was based on the results of 120 natural waters and 46 mineral waters (in relation to the hydrogeological classification of water mineralization). Significant diversity was found in terms of the basic mineral composition, and in many cases also a wealth of microcompounds (e.g. fluorides, iodine, selenium), which have a positive effect on the human health. Both the deficiency and excess of the water consumed and the amount of contained ingredients have an influence on the human health. While choosing water, it is worth considering the volume of water consumed, the age and health of the consumer, season of year, activity, type of diet, taken dietary supplements, vitamins and medicines. The information on the label is sufficient to choose the water suited to the individual needs. The waters with high mineralization and/or with large concentrations of microcompounds should be used after medical consultations to determine their use: specify the area of application and recommended drinking amount and frequency.
Źródło:: Journal of Ecological Engineering; 2020, 21, 4; 103-111
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Habitat Conditions of Canadian Goldenrod in a Selected Region of Eastern Poland
Autorzy:: Bielecka, A.
Królak, E.
Biardzka, E.
Powiązania:: https://bibliotekanauki.pl/articles/124501.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: soil
acidity
organic carbon
total nitrogen
total phosphorus
magnesium
calcium
Opis:: The Canadian goldenrod Solidago canadensis (L) is an invasive species in Poland. It occurs both in habitats only weakly impacted by anthropogenic factors as well as in habitats subjected to intensive transformations by humans. The aim of this study was to characterise the habitats of S. canadensis in Mińsk Mazowiecki and in out-of-town areas. It has been shown, based on an analysis of the principal soil properties, that the sites where S. canadensis was found had clayey-sandy soil and a C/N ratio indicative of medium and high soil degradation. Canadian goldenrod was found at sites with a diverse content of phosphorus, calcium and magnesium in soil, as well as a diverse soil pH, indicative of a strongly acidic, acidic and alkaline character of the soil.
Źródło:: Journal of Ecological Engineering; 2017, 18, 4; 76-81
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Reagent Removal of Heavy Metals From Waters of Coal Mines and Spoil Tips of the Lviv-Volyn Industrial Mine Region
Autorzy:: Mazurak, Oksana
Solovodzinska, Irina
Mazurak, Andriy
Gryncyhshyn, Nataliia
Powiązania:: https://bibliotekanauki.pl/articles/124260.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: ecological hazard
heavy metals
toxicant
mine
calcium carbonate
sodium hydroxide
Opis:: The article substantiates the efficiency of using chemical (reagent) technologies for the purification of industrial water from mines and spoil tips from heavy metals-toxicants and reducing their ecological hazard. The ecological risk indices of toxicants and their proportion in the overall level of ecological danger of the investigated object were presented. The results of experimental studies, interaction of comparative qualitative indicators of removal of heavy metal ions by inorganic reagents – calcium carbonate and sodium hydroxide were provided. It is shown that the solution of the ecological problem concerning the reduction of the toxicity level of subterminal waters of mines is their treatment with fine calcium carbonate CaCO₃ that converts the heavy metal ions into hardly soluble basic carbonates or heavy metal hydroxides. Positive results concerning the efficiency of the subterminal water treatment of the «Velikomostovskaya» mine of the Chervonograd mining area by calcium carbonate were identified. That indicates a significant reduction of the ecological hazard indicator of the treated wastewater. The content of ions of most heavy metals, which precipitate in the form of basic carbonates at values close to pH = 8.5, was significantly reduced.
Źródło:: Journal of Ecological Engineering; 2019, 20, 8; 50-59
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Estimation of wheat straw and rapeseed usefulness for wheat fertilisation in arable farming
Autorzy:: Stankowski, S.
Michalska, B.
Smagacz, J.
Gibczyńska, M.
Powiązania:: https://bibliotekanauki.pl/articles/125269.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: ‘Finezja’ and ‘Ludwig’ wheat
magnesium
phosphorus
potassium
calcium
soil fertilization
Opis:: The aim of the research was the estimation of wheat and rapeseed straw usefulness for fertilising plants in arable farming. The subject matter of the study was the analysis of the influence of soil fertilisation with wheat and rapeseed straw on the yield and changes in the content of phosphorus, potassium, calcium and magnesium in winter wheat grain cultivars: Finezja and Ludwig. The static field experiment was conducted at Agricultural Experiment Station, Grabów, Institute of Soil Science and Plant Cultivation – State Research Institute (51°21′ N, 21°40′ E) in the years 2008–2010 on Haplic Luvisol. The effect of fertilisation with wheat and rapeseed straw did not have a significant effect on grain yield of winter wheat cultivars ‘Finezja’ and ‘Ludwig’. The introduction of complementary nitrogen fertilisation caused an increase in grain yield of wheat cultivar Ludwig. Organic fertilisation with wheat and rapeseed straw as well as complementary nitrogen fertilisation did not significantly differentiate the content of phosphorus, potassium, calcium and magnesium in winter wheat grain cultivars ‘Finezja’ and ‘Ludwig’.
Źródło:: Journal of Ecological Engineering; 2015, 16, 2; 101-109
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: The Effects of Various Organic Materials on Dactylis glomerata Yield and Content of Selected Macroelements
Autorzy:: Malinowska, Elżbieta
Wiśniewska-Kadżajan, Beata
Ostaszewska, Urszula
Horaczek, Tomasz
Powiązania:: https://bibliotekanauki.pl/articles/27323835.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: Dactylis glomerata
yield
organic materials
K
potassium
Ca
calcium
Mg
magnesium
Opis:: The aim of the experiment was to assess the effects of various organic materials on Dactylis glomerata yield, on the content of selected macroelements (K, Ca and Mg) and on K:Ca, K:Mg and K:(Ca + Mg) ratios. As a valuable forage plant, Dactylis glomerata (cocksfoot grass) is a common grass in Poland both in grassland and in arable fields. Its rapid spring growth and its resistance to drought, low temperatures, but also to frequent mowing and pests, makes it a common species in meadows, pastures and grassland, both permanent and alternating. In order to achieve the research goal, a three-year pot experiment was established in a greenhouse. The experiment was conducted in a completely random design, in four replications. In the autumn before the experiment, soil was mixed with organic materials (chicken manure, mushroom substrate and rye straw) and put into pots. To selected units, an additional amount of mineral N was applied in the first year and NPK fertilizers in consecutive years. Mineral fertilizers were applied at the beginning of the growing period. Compared to control, the application of mineral and organic fertilizers resulted in a significant increase in Dactylis glomerata yield. The highest biomass yield (average over the growing periods) was recorded on the unit treated with manure, straw and mineral fertilizers (27.64 g•pot-1) and on the one with mushroom substrate applied together with rye straw and mineral fertilizers (26.47 g•pot-1). The K:(Ca+Mg) ratio in the forage was normal and averaged 0.933, but mineral fertilizers, compared to other treatments, narrowed it.
Źródło:: Journal of Ecological Engineering; 2023, 24, 7; 108--118
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Effect of different substances on some properties of soil contaminated with heating oil
Autorzy:: Wyszkowski, M.
Sivitskaya, V.
Powiązania:: https://bibliotekanauki.pl/articles/123153.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: heating oil contamination
nitrogen
compost
bentonite
zeolite
calcium oxide
soil properties
Opis:: The aim of the study was to determine the effect of the application of different substances (nitrogen, compost, bentonite, zeolite and calcium oxide) to soil on its selected properties after prior contamination with heating oil: 0, 5, 10, 15 and 20 g kg^-1 d.m. of soil. Heating oil contamination and the application of different substances had a significant effect on the tested soil properties. In the series without additives, heating oil caused an increase in soil pH and a decrease in hydrolytic acidity, the total exchange bases and cation exchange capacity. Bentonite and calcium oxide had the strongest effect of all the substances on soil properties. They induced a rise in soil pH, an increase in the total exchange bases and cation exchange capacity and a decrease in hydrolytic acidity. The effect of other substances, particularly nitrogen and compost, on the tested soil properties was significantly lower. On the soil contaminated with heating oil, the effect of individual substances on the degree of base saturation was relatively small because it did not exceed 8% in all of the test series.
Źródło:: Journal of Ecological Engineering; 2015, 16, 1; 62-66
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Effect of Neutralising Substances on Selected Properties of Soil Contaminated With Cobalt
Autorzy:: Kosiorek, M.
Wyszkowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/123304.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: cobalt contamination
farmyard manure
loam
charcoal
zeolite
calcium oxide
soil properties
Opis:: Because of the potential threat for development of plants, resulting from the occurrence of too high cobalt contents in soil environment, a study was undertaken aiming to determine the effect of increasing soil contamination with cobalt (0, 20, 40, 80, 160, 320 mg·kg-¹ of soil), following the application of neutralising substances (farmyard manure, loam, charcoal, zeolite and calcium oxide), on the soil pH, hydrolytic acidity, total exchangeable bases, cation exchange capacity and the base saturation. In the series without neutralising substances added, soil contamination with the highest doses of cobalt resulted in a decrease in pH, in the total exchangeable bases, in the cation exchange capacity, and in the base saturation, and in an increase in the soil hydrolytic acidity. Of the applied neutralising substances, farmyard manure and particular calcium oxide had the greatest effect on the analysed soil properties. The application of the substances resulted in an increase in the soil pH, in the base exchange capacity, in the cation exchange capacity and in the base saturation and also in a decrease in the soil hydrolytic acidity. The other substances had no, or a small, effect on the studied soil properties.
Źródło:: Journal of Ecological Engineering; 2016, 17, 3; 193-197
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Processing of Titanium-Magnesium Production Waste
Autorzy:: Karshyga, Zaure
Ultarakova, Almagul
Lokhova, Nina
Yessengaziyev, Azamat
Kassymzhanov, Kaisar
Powiązania:: https://bibliotekanauki.pl/articles/2173227.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: waste
sludge
dust
leaching
sublimation
ammonium bifluoride
calcium nitrate
amorphous silicon dioxide
Opis:: The article presents the results of research on the processing of such wastes of titanium-magnesium production as sludge from sludge dumps and fine dump dusts from the electric smelting of ilmenite concentrates. The results of nitric acid leaching of sludge with the transfer of calcium into solution and the production of calcium nitrate are given. Titanium-containing cake after nitric acid leaching of sludge and electric smelting dust cannot be returned to the technological process due to its high silica content, so the silicon impurity was removed from their composition. Silicon removal was performed by fluoroammonium processing with sublimation of hexafluorosilicate compounds. An amorphous silicon dioxide product was obtained, after ammonia hydrolysis of silicon-containing sublimations and appropriate treatment of the sediment. The residue from the sublimation of silicon fluorides consists mainly of titanium-containing phases and can be suitable for return for electrofusion after ammonia treatment.
Źródło:: Journal of Ecological Engineering; 2022, 23, 7; 215--225
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Stan zużycia podstawowych nawozów mineralnych w Polsce i województwie podkarpackim
Consumption of basic mineral fertilizers in Poland and in podkarpackie province
Autorzy:: Jarecki, W.
Bobrecka-Jamro, D.
Powiązania:: https://bibliotekanauki.pl/articles/399665.pdf
Data publikacji:: 2009
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: nawóz mineralny
nawóz wapienny
województwo podkarpackie
mineral fertilizers
calcium fertilizer
voivodeship podkarpackie
Opis:: W Polsce w latach 1998-2009 istotnie wzrosło zużycie nawozowa mineralnych w kg NPK na 1 ha DR, w tym głównie nawozów azotowych. Niepokojący jest natomiast stan zużycia wapna nawozowego, z wyraźnym jego spadkiem od sezonu 2005/2006. W województwie podkarpackim poziom zużycia nawozów mineralnych NPK i wapniowych w kg na 1 ha DR jest znacznie niższy od krajowego. Z analizy trendów wynika, ze w ocenianym rejonie istotnie wzrosło jedynie zużycie nawozów azotowych na 1 ha DR, czas fosforowych i potasowych wykazało tylko tendencje wzrostową. Za zjawisko negatywne w województwie podkarpackim należy uznać istotny spadek zużycia nawozów wapniowych, przy dużym udziale w rejonie gleb kwaśnych i bardzo kwaśnych.
In Poland in years 1998-2009 the consumption of mineral fertilizers in kg NPK on 1 ha DR substantially increased, mainly nitrogen fertilizers. But the consumption of fertilizing lime is rather disturbing, with clear drop in the season 2005/2006. In Podkarpackie Province the level of consumption of mineral fertilizers NPK and lime fertilizers in kg on 1 ha DR is substantially lower than the national level. The analysis of the trends presents that in the evaluated region only the consumption of nitrogen fertilizers increased on 1 ha DR, but the consumption of phosphorus and potassium fertilizers presented only increasing tendency. The considerable drop of the consumption of lime fertilizers on vast areas of acid and strongly acid soils in Podkarpackie Province is considered a negative phenomenon.
Źródło:: Inżynieria Ekologiczna; 2009, 21; 25-31
2081-139X
2392-0629
Pojawia się w:: Inżynieria Ekologiczna
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Minimization of Soil Pollution as a Result of the Use of Encapsulated Mineral Fertilizers
Autorzy:: Vakal, Serhii
Yanovska, Anna
Vakal, Viktoriia
Artyukhov, Artem
Shkola, Viktoriia
Yarova, Tetiana
Dmitrikov, Valerii
Krmela, Jan
Malovanyy, Myroslav
Powiązania:: https://bibliotekanauki.pl/articles/1839539.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: phosphates
carbamide
calcium humate
potassium humate
organo-mineral fertilizer
Avatar traceelement complex
Opis:: The application of nitrogen fertilizers allows increasing crop yields and partially increase the natural soil fertility. They have a negative influence on the environment due to the significant release of nitrogen. Hence, the technology for decreasing the N-release is proposed in this work. Obtaining of complex organo-mineral NPK fertilizers by encapsulating a carbamide granule with a phosphate-potassium shell with humates is the main aim of this work. The main tasks of this shell is slow release of the nitrogen and phosphate nutrients from the granules into the soil following the agrochemical needs of plants and prevention of soil pollution. The powdered components agglomeration of phosphate and potassium fertilizers with a small amount of liquid phase (plasticizer) allows forming a phosphate-containing coating on a carbamide core by means of the semi-dry method. This innovation allows organizing the production of such a product at the average enterprise with less capital investment. Carbamide prills, phosphate-glauconite concentrate, calcium and potassium ballast humate, and “Avatar” trace-element chelate complex were used in experimental studies. A preliminary assessment of the market prospects for such an innovation shows a high level of market attractiveness for all market participants: producers, consumers, and society.
Źródło:: Journal of Ecological Engineering; 2021, 22, 1; 221-230
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Wpływ wapnowania i stosowania odpadowych materiałów organicznych na zawartość wapnia i magnezu w kupkówce pospolitej uprawianej na glebie zanieczyszczonej niklem
Effect of liming and use of waste organic materials on the contents of calcium and magnesium in cock’s-foot cultivated on nickel-contaminated soil
Autorzy:: Kuziemska, B.
Klej, P.
Trębicka, J.
Popek, M.
Powiązania:: https://bibliotekanauki.pl/articles/401036.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: kupkówka pospolita
nikiel
wapnowanie
słoma
węgiel brunatny
wapń
magnez
cocksfoot
nickel
liming
straw
brown coal
calcium
magnesium
Opis:: W doświadczeniu wazonowym badano wpływ wapnowania i dodatku do gleby odpadowych materiałów organicznych na zawartość wapnia i magnezu w kupkówce pospolitej (Dactylis glomerata L.), uprawianej na glebie w różnym stopniu zanieczyszczonej niklem. Analizowano rośliny czterech pokosów trawy, w trzecim roku badań. W doświadczeniu uwzględniono czynniki: 1 – zanieczyszczenie gleb niklem (0, 75, 150 i 225 mg Ni·kg^-1 gleby); 2 – wapnowanie (0 Ca i Ca wg 1 Hh gleby); 3 – odpadowe materiały organiczne (bez dodatku odpadowych materiałów organicznych, węgiel brunatny i słoma żytnia). Wraz ze zwiększeniem ilości niklu w glebie zmniejszyła się ilość magnezu w biomasie rośliny testowej. Zastosowane wapnowanie spowodowało wzrost średniej zawartości wapnia oraz obniżenie zawartości magnezu w kupkówce pospolitej. W badaniach nie stwierdzono istotnego wpływu wprowadzenia słomy do gleby na ilość omawianych metali w biomasie trawy, natomiast wpływ węgla brunatnego uwidocznił się zarówno w przypadku wapnia jak i magnezu (rośliny zebrane z obiektów gdzie go zastosowano zawierały średnio mniej obu makroelementów w stosunku do roślin zebranych z obiektów kontrolnych).
The effect of liming and the addition to soil of waste organic materials on the contents of calcium and magnesium in cock’s-foot (Dactylis glomerata L.) cultivated on soil contaminated to various degrees with nickel was studied in a pot culture experiment. Plants from four cuts of grass were analysed in the third year of the study. The following factors were taken into account: 1 – contamination of soils with nickel (0, 75, 150 and 225 mg N·kg^-1 of soil); 2 – liming (0 Ca and Ca according to Hh of soil); 3 – waste organic materials (no waste organic materials added, brown coal and rye straw). With increasing nickel content in soil, the magnesium content in biomass of the test plant decreased. The applied liming resulted in an increase in the average calcium content and a decrease in the magnesium content in cock’s-foot. No significant effect of introducing straw to soil on the contents of calcium and magnesium in biomass of the grass was found, while the effect of brown coal was visible both for calcium and for magnesium (in the plants harvested from the objects to which brown coal was applied, the contents of both macroelements were, on average, lower than in the plants harvested from the control objects).
Źródło:: Inżynieria Ekologiczna; 2016, 47; 170-175
2081-139X
2392-0629
Pojawia się w:: Inżynieria Ekologiczna
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Wpływ dodatków mineralnych i organicznych do osadów ściekowych oraz kompostowania uzyskanych mieszanin na ich wybrane właściwości
The influence of mineral and organic additives to the sewage sludge and composting process of those mixtures on their selected properties
Autorzy:: Wysokiński, A.
Kalembasa, S.
Powiązania:: https://bibliotekanauki.pl/articles/401599.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: osady ściekowe
tlenek wapnia
popiół z węgla brunatnego
słoma
trociny
sewage sludge
calcium oxide
ash
straw
sawdust
Opis:: Badano wpływ mieszania osadów ściekowych z tlenkiem wapnia, popiołem z węgla brunatnego, słomą i trocinami oraz kompostowania otrzymanych mieszanin na zawartość w nich suchej masy, ogólnej zawartości azotu, węgla w związkach organicznych oraz na wartość pH. Zawartość suchej masy w mieszaninach osadów ściekowych ze wszystkimi komponentami była większa niż w samych osadach. Dodatek tlenku wapnia w większym stopniu niż dodatek popiołu z węgla brunatnego alkalizował osady ściekowe, powodując jednocześnie większe straty azotu. Dodatek słomy i trocin zmniejszył w uzyskanej mieszaninie zawartość azotu, ale nie powodował zmian odczynu osadów. Po dodaniu tlenku wapnia i popiołu do osadów uzyskano mieszaniny o mniejszej zawartości węgla w związkach organicznych niż w samych osadach. Mieszaniny osadów z trocinami i słomą zawierały więcej węgla w związkach organicznych niż same osady. Zmniejszenie zawartości węgla w związkach organicznych i ogólnej zawartości azotu w trakcie kompostowania mieszanin osadów z tlenkiem wapnia i trocinami było mniejsze niż w osadach z dodatkiem popiołu i trocin.
The study examined the effects of mixing sewage sludge with calcium oxide, brown coal ash, straw and sawdust as well as composting the obtained mixtures on the dry matter, organic carbon and total nitrogen contents as well as the pH values of these materials. The content of dry matter in the mixtures of sewage sludge with all components was higher than in sludge without additives. The addition of calcium oxide resulted a stronger alkalization of sludge than addition of brown coal ash, causing simultaneously larger losses of nitrogen. The addition of straw and sawdust to the sewage sludge decreased nitrogen content in obtained mixtures, but did not effect the pH value. After addition calcium oxide and brown coal ash to sewage sludge obtained mixtures with smaller content of organic carbon in comparison to the sludge without addition. The mixtures of sewage sludge with straw and sawdust contained more organic carbon than sludge without addition. The decrease of organic carbon and total nitrogen content during the composting process of mixtures of sewage sludge with calcium oxide and sawdust was lower than in their mixtures with brown coal ash and straw.
Źródło:: Inżynieria Ekologiczna; 2011, 27; 240-249
2081-139X
2392-0629
Pojawia się w:: Inżynieria Ekologiczna
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Technologia FuelCal przetwarzania odpadowych biomas na wieloskładnikowe nawozy organiczno-mineralne i wapniowo-organiczne OrCal®
The FuelCal technology of processing biomass waste into multi-component organic-mineral fertilisers and calcium-organic fertilisers OrCal®
Autorzy:: Zakrzewski, J.
Chabelski, T.
Powiązania:: https://bibliotekanauki.pl/articles/400865.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: odpady biomasy
nawozy organiczno-mineralne
nawozy wapniowo-organiczne
FuelCal
OrCal
biomass waste
organic-mineral fertilisers
calcium-organic fertilisers
Opis:: Technologia FuelCal służy do przetwarzania odpadów zasobnych w substancję organiczną na nawozy organiczno-mineralne OrCal® zgodnie ze zgłoszeniem patentowym P.400268 pt. „Nawóz o kontrolowanym uwalnianiu składników oraz sposób wytwarzania nawozu o kontrolowanym uwalnianiu i sposób aplikacji nawozu”. Głównymi surowcami organicznymi są: osady z oczyszczania ścieków komunalnych oraz osady ściekowe z zakładów przetwórstwa rolno spożywczego, odpady przetwórstwa roślinnego i zwierzęcego, odchody ferm zwierzęcych (w tym ptasich), odpady gastronomiczne, przeterminowana (niespożytkowana) żywność w obrocie rynkowym. Technologicznym reagentem i nawozowym surowcem jest wapno palone (CaO), które w reakcji z wodą przemienia się w wodorotlenek wapnia Ca(OH)₂ podnosząc raptownie temperaturę i alkaliczność środowiska. Technologia przetwarzania odpadów biologicznych na użyteczny nawóz jest bezodpadowa. Zainstalowanie jej u źródła (miejsca) wytwarzania odpadów umożliwia ich użytkowe wykorzystanie, co sprawia, że dotychczasowy proces wytwórczy staje się bezodpadowy.
FuelCal technology is designed to process organic waste into an organic matter which can be used in organic and mineral OrCal® fertilisers, in compliance with the P.400268 patent application entitled ”Fertiliser with a controlled ratio of nutrient release during the course of the applied fertilisation period, as well as a method of controlled nutrient release fertiliser production”. The main organic raw materials are: sludge from municipal waste treatment as well as sludge from agricultural and food production plants, animal and plant waste, live-stock excrement (including birds› excrement), catering waste, and expired (unutilised) marketed food. The technological reagent and the fertiliser material is quicklime (CaO), which reacts with water and turns into calcium hydroxide Ca(OH)₂ quickly increasing the temperature and alkalinity of the environment. Processing biological waste into useful fertiliser is a waste-free technology. Installing it at the source (place) of waste generation results in the removal of such waste source, therefore the existing production process becomes waste-free.
Źródło:: Inżynieria Ekologiczna; 2016, 46; 166-174
2081-139X
2392-0629
Pojawia się w:: Inżynieria Ekologiczna
Dostawca treści:: Biblioteka Nauki

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