書誌事項
- タイトル別名
-
- Sorption Mechanism of Boron to Magnesium Hydroxide using Co-precipitation Process in Aqueous Solution
- スイサンカ マグネシウム キョウチンホウ ニ オケル ハイスイ チュウ ノ ホウソ ジョキョ キコウ ノ コウサツ
この論文をさがす
説明
We investigated co-precipitation using magnesium (Mg) salt as a cost efficient method of removing B from wastewater. To clarify the mechanism of co-precipitation and the effect of precipitation rate against B sorption mechanism, we conducted co-precipitation experiments changing reaction time at different temperatures. For these experiments, we carried out sorption isotherm formation and XRD analysis to clarify how co-precipitation of B with magnesium hydroxide (Mg (OH) 2) occurred. The sorption isotherm of co-precipitation was a BET type, while the XRD peak shift occurred as the initial B/Mg molar ratio increased. These results suggested that the mechanism of B uptake was a combination of surface precipitation and surface complexation, and the later mechanism became more apparent as the initial B/Mg molar ratio increased. XRD spectrum of co-precipitated residues was relatively similar to that of hydromagnesite, which indicated that structure of surface precipitation is similar to that of hydromagnesite. Co-precipitation experiments for 6 hours revealed that Mg precipitation rate was faster at the higher temperature, while sorption density became worse as the temperature increased. At 40<tt>℃</tt> and 60<tt>℃</tt>, XRD peak shift did not occur when the initial B/Mg molar ratio was0.063, which suggests that fast precipitation rate disturbed production of surface precipitation. In addition, the initial B/Mg molar ratio in which B sorption mechanism changed from formation of surface compexation to production of surface precipitation became larger as Mg precipitation rate increased.
収録刊行物
-
- 資源と素材
-
資源と素材 130 (5), 155-161, 2014
一般社団法人 資源・素材学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390282680256276352
-
- NII論文ID
- 130005070042
-
- NII書誌ID
- AA12188381
-
- ISSN
- 18840450
- 18816118
-
- NDL書誌ID
- 025520941
-
- 本文言語コード
- ja
-
- データソース種別
-
- JaLC
- NDLサーチ
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE
-
- 抄録ライセンスフラグ
- 使用不可