Pregled bibliografske jedinice broj: 360820
The effect of anionic 831A flocculent on the sedimentation of magnesium hydroxide obtained from seawater
The effect of anionic 831A flocculent on the sedimentation of magnesium hydroxide obtained from seawater // Abstracts Book / Grilec, Krešimir ; Marić, Gojko ; Jakovljević, Suzana (ur.).
Zagreb: Hrvatsko društvo za materijale i tribologiju (HDMT), 2008. str. 36-36 (poster, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 360820 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
The effect of anionic 831A flocculent on the sedimentation of magnesium hydroxide obtained from seawater
Autori
Martinac, Vanja ; Labor, Miroslav ; Gadžo, Zrinka ; Petric, Nedjeljka
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Abstracts Book
/ Grilec, Krešimir ; Marić, Gojko ; Jakovljević, Suzana - Zagreb : Hrvatsko društvo za materijale i tribologiju (HDMT), 2008, 36-36
ISBN
978-953-7040-13-00
Skup
13th International Conference on Materials, Processes, Friction and Wear, MATRIB'08
Mjesto i datum
Vela Luka, Hrvatska, 26.06.2008. - 28.06.2008
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
substoichiometric precipitation; sedimentation rate; magnesium hydroxide; seawater
Sažetak
This study has examined the possibility of using the anionic 831A flocculent, produced by a Dutch firm Hercules, in tracing the rate of sedimentation of magnesium hydroxide obtained from seawater by 80% substoichiometric precipitation. The purpose of this study was to define the optimum conditions for sedimentation of magnesium hydroxide from seawater based on settling properties of magnesium hydroxide suspension in discontinuous precipitation. Examinations were made with different quantities of the 831A flocculent, and at different degrees of completeness of precipitation (70 % and 100 % precipitation) to determine the optimum quantity of the 831A flocculent during the sedimentation process. The results indicate significantly faster sedimentation of magnesium hydroxide obtained by precipitation with the smaller quantity of the precipitation agent than that required stoichiometrically, which is explained by the model of the Mg(OH)2 particle. From the results obtained for discontinuous conditions, one can apply the Kynch theory to calculate the continuous thickener.
Izvorni jezik
Engleski
Znanstvena područja
Kemijsko inženjerstvo
POVEZANOST RADA
Projekti:
011-0112247-2250 - Aktivirano sinteriranje magnezijeva oksida (Martinac, Vanja, MZOS ) ( CroRIS)
Ustanove:
Kemijsko-tehnološki fakultet, Split