Temat: defluoridation - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Comparative study for the defluoridation of water by Coagulation
Autorzy:: Atia, D.
Hoggui, A.
Abdelhafidh, D. B. A.
Powiązania:: https://bibliotekanauki.pl/articles/412421.pdf
Data publikacji:: 2013
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: fluorine
defluoridation
drinkable water
coagulation
Opis:: El-Oued is known for some diseases caused by fluoride concentration in drinkable water. To reduce it, we have chosen a sample with the highest content of fluoride among many sources in order to coagulate it with Al2(SO4)3ź18H2O, Fe2(SO4)3źH2O and FeSO4. In order to get better reduction yield of fluoride, a study has been done on the influencing parameters (concentration, pH, temperature) to choose the best conditions. The remove of fluoride is favorable at low concentration of Al2(SO4)3, at room temperature and normal acidity.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2013, 8, 2; 123-131
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Defluoridation of drinkable water Comparative study and parameter influent
Autorzy:: Atia, D.
Hoggui, A.
Abdelhafidh, B. A.
Powiązania:: https://bibliotekanauki.pl/articles/411680.pdf
Data publikacji:: 2013
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: fluorine
defluoridation
drinkable water
coagulation
precipitation
Opis:: El-Oued is known for some diseases caused by fluoride concentration in drinkable water. To reduce it , a sample with the biggest content among many sources was chosen. A comparative study between the precipitation with calcium salts [Ca(OH)2, CaCl2, CaSO4] and the coagulation with the following salts [Al2(SO4)2•18H2O, Fe2(SO4)2•H2O, FeSO4] was done. Finely we studied the parameters influencing (the mass , pH, temperature) to choose the best conditions in order to get better reduction yield.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2013, 10, 1; 48-60
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Decreasing fluoride by coagulation in drinkable water from Souf region of Algeria
Autorzy:: Atia, D.
Hoggui, A.
Powiązania:: https://bibliotekanauki.pl/articles/411794.pdf
Data publikacji:: 2013
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Souf region
defluoridation
fluorosis
coagulation
drinkable water
Opis:: The drinkable water in Souf region at the south east of Algeria contains high quantity of fluoride which causes dental fluorosis. To reduce fluoride, we have chosen a sample with the biggest content of fluoride among many sources in order to coagulate it with Fe2(SO4)3źH2O. After that the parameters influencing (concentration, pH, temperature) are studied to choose the best conditions for better reduction.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2013, 5; 57-65
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Optimization of fluoride removal using ultrasonically improved electrochemically generated adsorbent: A Taguchi approach
Autorzy:: Junghare, Kunjan C.
Kodape, Shyam M.
Rathod, Ajit P.
Lataye, Dilip H.
Powiązania:: https://bibliotekanauki.pl/articles/2173422.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: isotherms
kinetics
defluoridation
electrolyte
ultrasonication
izotermy
kinetyka
defluoryzacja
elektrolit
ultradźwięki
Opis:: Ultrasonically improved electrochemically generated adsorbent (UEGA) has been synthesized and used for adsorption of fluoride ions from fluoride laden waste water. UEGA was prepared in two major steps, firstly electrochemically generated adsorbent (EGA) was prepared using electrolytic method followed by ultrasonication treatment. Ultrasonication causes size reduction which leads to increase in surface area viz. active site which helps to enhance attachment of negatively charged fluoride ion on positively changed UEGA from waste water. UEGA was prepared at three different amplitude i.e. 50, 70 and 90% respectively. Taguchi optimization for defluoridation was carried out considering operating parameters such as initial concentration; contact time; adsorbent dose; and temperature. The results obtained demonstrated that adsorption showed different fluoride removal at varying frequency. This study proved that varying percentage amplitude of ultrasonication significantly affects defluoridation efficiency.
Źródło:: Chemical and Process Engineering; 2022, 43, 2; 109--117
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: A Novel Bio-Waste Incorporated Alginate Sorbent for De-Fluoridation of Water
Autorzy:: Ayyappan, C. S.
Sreeja, S.
Bhalambaal, V. M.
Powiązania:: https://bibliotekanauki.pl/articles/124891.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: tamarind seeds
defluoridation
sodium alginate
column study
water purification
Opis:: This study evaluates the feasibility of using tamarind (Tamarindus indica) seed powder for de-fluoridation of fluoride contaminated water. Batch study confirmed that tamarind seeds in dry powder form could remove 87% of fluoride from water. This bio-sorbent can be used effectively in areas where fluoride concentrations are above the permissible limits of 1.5 mg·l-1 as per WHO Standard, 1984. Tamarind seed powder was incorporated in a matrix of sodium alginate and made into gel-beads. The beads were tested for de-fluoridation efficiency by conducting column studies. The effect of various factors, such as flow rate, retention time, and the number of runs on the efficacy of fluoride removal was also studied. The results revealed that flow rate did not seem to have much effect on the percentage fluoride removal but the fluoride concentration decreased drastically upon greater retention time and multiple runs.
Źródło:: Journal of Ecological Engineering; 2015, 16, 4; 8-13
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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