نتایج جستجو برای: sepiolite

تعداد نتایج: 436  

Journal: :آب و خاک 0
احمدرضا شیخ حسینی حسین شریعتمداری مهران شیروانی

introduction: pollution of soil and water environment by release of heavy metals is of great concerns of the last decades. sorption of heavy metals by low cost materials is considered as an inexpensive and efficient method used for removal of heavy metals from soil-water systems. the presence of different ligands with various complexing abilities can change the sorption properties of heavy meta...

ژورنال: علوم آب و خاک 2018
جعفری, سیروس, عبدلی, یونس,

This study was done to evaluate the effect of topography, water table, and irrigation on gypsc soil development and clay mineral diversity in Ram-Hormuz Plain, Khuzestan Province. To localize, 10 profiles in this region that covered all purpose irrigation and topography situation were described. The results showed that the soils could be classified in Entisols, Inceptisols and Aridisols orders....

اسماعیل‌پور فرد, نسترن , هوشمند, سعداله , گیوی, جواد ,

Mining, industrial and agricultural activities can result in considerable soil pollution by heavy metals (HMs). One of the methods to control this pollution is application of adsorbent minerals. The purpose of this study was to compare the effects of adsorbent minerals (bentonite, zeolite and sepiolite) on transfer of some heavy metals (i.e., Pb, Zn and Cd) from soil to tissues of sunflower (He...

Journal: :Journal of Society of Materials Engineering for Resources of Japan 1995

Journal: :Journal of Chemical Education 2021

Syntheses of analogues historical indigo and Maya blue pigments using an inquiry-based approach are presented. Derivatives were synthesized (in particular Tyrian purple) used as vat dyes for dyeing cotton or wool fabrics mixed with a sepiolite clay to create new hues colors blues green chemistry hydrothermal microwave synthesis. The allows very quick preparation analogue (typically 1 h) while i...

Journal: :Sustainability 2022

Constructed wetlands, as natural sewage treatment ecosystems, have been widely used in the fields of rural domestic and plant tailwater treatment. However, synchronous removal phosphorus most constructed wetlands is not ideal. This study aimed to prepare thermally modified sepiolites with high adsorption capacities design a wetland based on them. Thermal modification was adopted enhance capacit...

Journal: :Journal of water process engineering 2021

Acid and thermal treated sepiolite was organophilized by cationic exchange with several alkylammonium cations (octylammonium, hexadecylammonium, tetradecyltrimethylammonium, hexadecyltrimethylammonium). The adsorption capacity of BTEX from aqueous solutions evaluated through the isotherms performed in batch. results were analysed using three isotherm models: Freundlich, Langmuir Dubinin-Radushk...

Journal: :Clay Minerals 2023

Abstract Clay minerals are effective adsorbents used for the remediation of toxic heavy metals from wastewater due to their large surface areas and great cation-exchange capacities. In this study, removal lead ions aqueous solutions via adsorption was investigated using raw iron-modified Turkish sepiolite. The aim study examine effects modification environmental conditions on sorptive propertie...

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