نتایج جستجو برای: diatomite

تعداد نتایج: 503  

Journal: :Sustainability 2023

In order to reduce the carbon emission of planting concrete in process preparation, and realize application large amounts red mud geopolymer, this study, high silicon source materials blast furnace slag are added a content base geopolymer concrete, which can remove dependence on ordinary Portland cement provide new direction for comprehensive utilization mud. paper, effects different A (Alkali ...

Journal: :Sustainable chemistry 2021

This study has developed novel fully bio-based resorcinol epoxy resin–diatomite composites by a green two-stage process based on the living character of cationic polymerization. comprises photoinitiation and subsequently thermal dark curing, enabling obtaining thick non-transparent epoxy-diatomite without any solvent amine-based hardeners. The effects diatomite content compacting pressure micro...

Introduction: One of the factors that affects the rate of adsorption and removal of pollutants is the level of bed surface. Today, the use of active carbon substrates, synthetic zeolite such as Y and ZSM-5, are of great efficiency due to their high surface. In this research, diatomite modification was carried out using chemical and thermal processes to increase the bed surface and also the amou...

Journal: :Science of Sintering 2022

Diatomite (diatomaceous earth) and clay minerals deposits from the mining basin Kolubara, Serbia, are natural materials with high economic potential in many fields. As received treated materials, diatomite were characterized using X-ray diffraction, mercury intrusion porosimetry, particle size distribution, scanning electron microscopy, Fourier-transform infrared spectroscopy. Activity concentr...

Journal: :Catalysts 2023

Pt nanoparticles and a CeMnOx composite were loaded on the surface of natural diatomite material to generate Pt/CeMnOx/diatomite using redox precipitation impregnation methods. The physicochemical properties catalysts characterized by means various techniques. catalytic resistance H2O SO2 measured for oxidation typical volatile organic compounds (i.e., toluene ethyl acetate). Among all as-prepa...

2018
Jordan Toullec Brivaëla Moriceau

Diatom production is mainly supported by the dissolution of biogenic silica (bSiO2) within the first 200m of the water column. The upper oceanic layer is enriched in dissolved and/or colloidal organic matter, such as exopolymeric polysaccharides (EPS) and transparent exopolymeric particles (TEP) excreted by phytoplankton in large amounts, especially at the end of a bloom. In this study we explo...

Journal: :Journal of hazardous materials 2010
Aishah A Jalil Sugeng Triwahyono S Hazirah Adam N Diana Rahim M Arif A Aziz N Hanis H Hairom N Aini M Razali Mahani A Z Abidin M Khairul A Mohamadiah

In this study, calcined Lapindo volcanic mud (LVM) was used as an adsorbent to remove an anionic dye, methyl orange (MO), from an aqueous solution by the batch adsorption technique. Various conditions were evaluated, including initial dye concentration, adsorbent dosage, contact time, solution pH, and temperature. The adsorption kinetics and equilibrium isotherms of the LVM were studied using p...

Journal: :Biomedical and environmental sciences : BES 2008
Lin Wang Li-Jing Huang Luo-Jia Yun Fei Tang Jing-Hui Zhao Yan-Qun Liu Xin Zeng Qi-Fang Luo

OBJECTIVE To study the possibility of removing nitrogen, phosphorus, and organic pollutants using seeding type immobilized microorganisms. METHODS Lakes P and M in Wuhan were chosen as the objects to study the removal of nitrogen, phosphorus, and organic pollutants with the seeding type immobilized microorganisms. Correlations between the quantity of heterotrophic bacteria and the total nitro...

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