Temat: ash - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Genetyka
Genetics
Autorzy:: Giertych, Maciej
Współwytwórcy:: Polska Akademia Nauk. Instytut Dendrologii
Bugała, Władysław. Redaktor
Wydawca:: Wydawnictwo Sorus
Powiązania:: Nasze drzewa leśne
Opis:: 21 cm : ilustracje
Dostawca treści:: RCIN - Repozytorium Cyfrowe Instytutów Naukowych

Książka

na półce

Skocz do pozycji: 2.

Tytuł:: 57Fe Mössbauer spectroscopy investigations of iron phase composition in fluidized beds from the ELCHO power plant in Chorzów, Poland
Autorzy:: Kądziołka-Gaweł, M.
Smolka-Danielowska, D.
Tematy:: Mössbauer spectroscopy
fly ash
bottom ash; Pokaż więcej
Wydawca:: Instytut Chemii i Techniki Jądrowej
Powiązania:: https://bibliotekanauki.pl/articles/148850.pdf Link otwiera się w nowym oknie
Opis:: The study investigates the physical and chemical properties of fly ash and bottom ash from a power plant ELCHO in Chorzów, Poland. Coal combustion products generated in the process of combustion in circulating fluidized beds (CFBs) are considerably different from fly and bottom ashes obtained from dust furnaces and multi-layer ones. The composition of the iron-bearing phase in the waste of circulating fluidized bed combustion was determined using Mössbauer spectroscopy and X-ray powder diffraction (XRD) methods.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 3.

Tytuł:: Mikoryza jesionu
Mycorrhizal symbiosis
Autorzy:: Rudawska, Maria
Współwytwórcy:: Polska Akademia Nauk. Instytut Dendrologii
Bugała, Władysław. Redaktor
Wydawca:: Wydawnictwo Sorus
Powiązania:: Nasze drzewa leśne
Opis:: 21 cm : ilustracje
Dostawca treści:: RCIN - Repozytorium Cyfrowe Instytutów Naukowych

Książka

na półce

Skocz do pozycji: 4.

Tytuł:: Use of fly ash and fly ash agglomerates for As(III) adsorption from aqueous solution
Autorzy:: Ulatowska, J.
Polowczyk, I.
Sawiński, W.
Bastrzyk, A.
Koźlecki, T.
Sadowski, Z.
Tematy:: arsenic
fly ash
fly ash agglomerates
adsorbents
adsorption; Pokaż więcej
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Powiązania:: https://bibliotekanauki.pl/articles/779784.pdf Link otwiera się w nowym oknie
Opis:: The objective of the present study is to assess the efficiency of fly ash and fly ash agglomerates to remove arsenic(III) from aqueous solution. The maximum static uptakes were achieved to be 13.5 and 5.7 mgAs(III)/adsorbent for nonagglomerated material and agglomerated one, respectively. Isotherm studies showed good fit with the Langmuir (fly ash) and the Freundlich (fly ash agglomerates) isotherm models. Kinetic studies indicated that the sorption of arsenic on fly ash and its agglomerates follows the pseudo-second-order (PSO) chemisorption model (R2 = 0.999). Thermodynamic parameters revealed an endothermic nature of As(III) adsorption on such adsorbents. The adsorption results confirmed that fly ash and its agglomerates can be used for As(III) removal from aqueous solutions. Fly ash can adsorb more arsenic(III) than agglomerates, which are easier to use, because this material is less dusty and easier to separate from solution.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 5.

Tytuł:: Use of waste paper ash or wood ash as substitution to fly ash in production of geopolymer concrete
Autorzy:: Owaid, Haider M.
Al-Rubaye, Muna M.
Al-Baghdadi, Haider M.
Tematy:: geopolymer concrete
GC
fly ash
FA
waste paper ash
WPA
wood ash
WA
alkaline solution; Pokaż więcej
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Powiązania:: https://bibliotekanauki.pl/articles/35545367.pdf Link otwiera się w nowym oknie
Opis:: Large quantities of paper and wood waste are generated every day, the disposal of these waste products is a problem because it requires huge space for their disposal. The possibility of using these wastes can mitigate the environmental problems related to them. This study presents an investigation on the feasibility of inclusion of waste paper ash (WPA) or wood ash (WA) as replacement materials for fly ash (FA) class F in preparation geopolymer concrete (GC). The developed geopolymer concretes for this study were prepared at replacement ratios of FA by WPA or WA of 25, 50, 75 and 100% in addition to a control mix containing 100% of FA. Sodium hydroxide (NaOH) solutions and sodium silicate (Na2SiO3) are used as alkaline activators with 1M and 10M of sodium hydroxide solution.The geopolymer concretes have been evaluated with respect to the workability, the compressive strength, splitting tensile strength and flexural strength. The results indicated that there were no significant differences in the workability of the control GC mix and the developed GC mixes incorporating WPA or WA. Also, the results showed that, by incorporating of 25–50% PWA or 25% WA, the mechanical properties (compressive strength, splitting tensile strength and flexural strength) of GC mixes slightly decreased. While replacement with 75–100% WPA or with 50–100% WA has reduced these mechanical properties of GC mixes. As a result, there is a feasibility of partial replacement of FA by up to 50% WPA or 25% WA in preparation of the geopolymer concrete.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 6.

Tytuł:: The influence of thermal processing of sewage sludge on the usage properties of the formed ash
Autorzy:: Gorazda, K.
Wzorek, Z.
Jodko, M.
Tematy:: odzysk fosforu
właściwości popiołów
ługowanie popiołu
popiół przemysłowy
phosphorus recovery
ash properties
ash extraction
industrial ash; Pokaż więcej
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Powiązania:: https://bibliotekanauki.pl/articles/778645.pdf Link otwiera się w nowym oknie
Opis:: The influence of sewage sludge incineration temperature on the formed ash constitution was examined. The comparative extraction tests of two differently prepared ashes (laboratory and industrial) were carried out in order to verify if the parameters of sewage sludge incineration influence the extraction selectivity of phosphorus compounds. The laboratory ash (A(lab)) were prepared from sewage sludge incinerated at 950°C on a laboratory scale while the industrial ash (A(ind)) comes from thermal utilization system of the sewage sludge at the Gdynia Sewage Treatment Plant, which uses fluid-bed furnace incineration at 850 - 900°C. It was found that the temperature and the conditions of the sewage sludge incineration process have an effect on the usage properties of the formed ash. Despite the twofold lower Fe content in the industrial ash than that of the laboratory one, its content in extracts after phosphoric acid leaching is 4.7 times higher. The lower values of PO4^3- leaching degree from the industrial ash than the laboratory ash were observed, as well as a decrease of extraction productivity.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 7.

Tytuł:: Utilization of Renewable Energy Waste (Wood Ash and Straw) in the Production of Mineral Fertilizers
Autorzy:: Hurets, Larisa
Izmodenova, Tetyana
Vakal, Viktoriia
Vakal, Serhii
Malovanyy, Myroslav
Tematy:: biomass
ash material
straw combustion
wood combustion
physical property of ash
chemical property of ash
nutrients; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/59114472.pdf Link otwiera się w nowym oknie
Opis:: The method of utilization of biomass ash in agriculture as an agrochemical is considered. Studies have shown that biomass ash contains a number of macro-and microelements essential for agriculture, such as phosphorus, potassium, calcium, magnesium and sulphur. Based on the content of the main chemical components and physical and chemical parameters of wood and plant ash, conclusions are drawn regarding its use. Wood ash with a high calcium content is suitable for agromelioration of soils with a low pH value. Ash from agricultural crop straw with a high calcium and potassium content is suitable for the production of potash fertilizers, and with a high potassium and phosphorus content–for the production of phosphorus-potassium fertilizers.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 8.

Tytuł:: Assessment of heavy metals inactivation in contaminated soil by coal fly and bottom ashes
Autorzy:: Diatta, Jean
Fojcik, Edward
Drobek, Leszek
Spiżewski, Tomasz
Krzesiński, Włodzimierz
Tematy:: fly ash
bottom ash
soil
heavy metals
inactivation
remediation; Pokaż więcej
Wydawca:: Polskie Towarzystwo Mineralogiczne
Powiązania:: https://bibliotekanauki.pl/articles/127625.pdf Link otwiera się w nowym oknie
Opis:: The study compared coal fly and bottom ashes for their ability to inactivate metals and lead to soil remediation. Soil was artificially contaminated with Cu, Zn, Pb and Cd at five degrees. Next, both ashes were added at five rates: 0, 0.5, 1.0, 1.5 and 2.0% and all treatments incubated. Data showed that for moderately contaminated soils, ash rates of 0.5 – 1.0% were efficient from 40 to 70% for Zn and Cd, and raised markedly to between 70 and 93% for Cu and Pb. For extremely contaminated soils, the rates of ashes at 1.0, 1.5 and 2% were much more efficient (60 – 80%). The use of fly and bottom ashes for metal inactivation and soil remediation should give greater consideration to the effect of pH and the type of heavy metals than the content of SiO2 and Al2O3. Fly ash displayed superior inactivation and remediation effects to the bottom ash.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 9.

Tytuł:: Reclamation and Reutilization of Incinerator Ash in Artificial Lightweight Aggregate
Autorzy:: Norlia, Mohamad Ibrahim
Amat, Roshazita Che
Rahim, Mustaqqim Abdul
Rahim, Nur Liza
Rahim, Abdul Razak
Tematy:: light weight aggregate
incinerator
bottom ash
fly ash
concrete; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2048860.pdf Link otwiera się w nowym oknie
Opis:: This study focused on the reclamation of ash from incineration process and development of new artificial lightweight aggregate (LWA) that have comparable properties with existing natural coarse aggregate. The main objective of this study is to examine potential use of recycled municipal solid waste incineration (MSWI) ash as raw material in LWA production with a method of cold-bonded pelletization. Two types of incineration ash which is bottom ash (BA) and fly ash (FA) were collected from Cameron Highland Incineration Plant, Malaysia. The properties of BA and FA are studied by means of X-Ray Fluorescence (XRF) and microstructure of these ashes were inspected using Scanning Electron Microscope (SEM). The properties of BALA and FALA produced in this study is examined including loose bulk density, water absorption and aggregate impact value (AIV). From the results of both types of artificial LWA, the lowest loose bulk density of BALA is BALA50 with 564.14 kg/m3 and highest is at 831.19 kg/m3. For FALA50, lowest loose bulk density is 573.64 kg/m3 and highest is 703.35 kg/m3. Water absorption of BALA and FALA is quite similar with one another in with the value of 23.8% and 22.6%, respectively. Generally, FALA have better qualities of LWA comparing with BALA with lower bulk density and water absorption and can be categorized as strong aggregate. In summary, reclamation and reutilization of incinerator ash has generated acceptable qualities for artificial LWA. Both types of BA and FA shown a great potential to be recycled as additional materials in artificial aggregate production.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 10.

Tytuł:: Zagrożenia eksploatacyjne kotłów – właściwości elektryczne popiołów wybranych paliw
Boiler operating hazard – electrical properties of selected fuels ash
Autorzy:: Janiczek, T.
Tematy:: spalanie
popioły paliw
mikrostruktury popiołu
combustion
fuel ash
ash mocrostructure; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Elektrotechniki
Powiązania:: https://bibliotekanauki.pl/articles/159180.pdf Link otwiera się w nowym oknie
Opis:: Badanie popiołów paliw ma olbrzymie znaczenie przy analizie procesów spalania między innymi pod kątem efektywności spalania, zanieczyszczeń, ekonomii wykorzystania kotła oraz jego procesu zużycia. Dla badanych popiołów parametry elektryczne zależą od struktury i mikrostruktury popiołu i są związane z temperaturą jego spiekania. W prezentowanej pracy przedstawiono analizę wyników badań impedancyjnych pod kątem znalezienia elektrycznego modelu zastępczego materiału jakim jest popiół, oraz powiązania poszczególnych elementów tego modelu z charakterystyczną temperaturą spiekania. Zaproponowany model był testowany przez symulacje komputerowe a wyznaczone parametry tego modelu zostały ze sobą skorelowane.
The study of fuel ash is of great importent in the analisis processes in the light of combustion efficiency, pollution, economic use of the boiler and the wear process. To test the electrical characteristics of ash depended on the structure and microstructure of ash and are associated with the sintering temperature. The paper presents the results of impedance analysis in terms of finding a substitute materials, the electric model which is the ash, and the relationship of individual elements of this model with the characteristic temperature sintering. The proposed model was tested by computer simulation and determined the parameters of this model were correlated.
Dostawca treści:: Biblioteka Nauki

Artykuł

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