書誌事項
- タイトル別名
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- Adsorption of Linear Alkylbenzenesulfonates and Their Complexes with Cationic Surfactants on River Sediment, and Their Biodegradation in River Water.
- チョクサ アルキルベンゼンスルホン サンエン オヨビ ソノ ヨウイオン カイメ
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説明
In order to know the behavior of linear alkylbenznesulfonate (LAS) and their complexes (LAS-CS) with cationic surfactants (CS), alkyltrimethylammonium chloride (TM) and dialkyldimethylammonium chloride (DM), in the aquatic environment, the formation of LAS-CS, their adsorption on the river sediment and primary biodegradation in the river water were studied. The formation of LAS-CS reached to the equilibrium within thirty minutes, and no effects of pH and reaction temperature were observed. It was confirmed that LAS formed LAS-CS with TM and DM at molar ratios from 1 : 1 to 6 : 1 and from 1 : 1 to 2 : 1, respectively. The adsorption isotherms of LAS and LAS-CS with TM or DM at molar ratios of 1 : 1 and 2 : 1 followed to the Freundlich's equations. The adsorption capacities of LAS-CS were smaller than that of LAS. Their order was LAS>LAS-TM>2LAS-TM>LAS-DM>2LAS-DM. The adsorption capacities of LAS, LAS-TM and 2LAS-TM increased with increasing the alkyl chain length of LAS, whereas those of LAS-DM and 2LAS-DM showed little variation among the alkyl chain length homologues. The primary biodegradation rates of LAS-CS with TM or DM at molar ratios of 1 : 1 and 2 : 1 were slower than that of LAS. Their order of biodegradation (% decreased during 14 days) was LAS (100%)>2LAS-TM (56%)>LAS-TM (36%)>2LAS-DM (31%)>LAS-DM (29%). The biodegradation of LAS and LAS-CS also decreased with increasing the alkyl chain length of LAS.
収録刊行物
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- 衛生化学
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衛生化学 44 (4), 264-276, 1998
公益社団法人 日本薬学会
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詳細情報 詳細情報について
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- CRID
- 1390282679471623040
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- NII論文ID
- 130003912184
- 110003642406
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- NII書誌ID
- AN00021540
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- NDL書誌ID
- 4550913
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- ISSN
- 0013273X
- http://id.crossref.org/issn/0013273X
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可