نتایج جستجو برای: diatomite

تعداد نتایج: 503  

Journal: :Chemistry Journal of Moldova 2009

Journal: : 2023

Bài báo trình bày kết quả phát triển vật liệu composite mới nguồn gốc tự nhiên trên cơ sở nhựa epoxy resorcinol sinh học – diatomite bằng quy xanh hai giai đoạn dựa đặc tính “sống” của sự trùng hợp cation. Bao gồm khởi đầu phản ứng ánh sáng và sau đó là hóa rắn không cần dưới tác dụng nhiệt, này cho phép thu được các epoxy-diatomite dày trong suốt mà dùng bất cứ dung môi hay chất amine nguy hại...

2001
Thomas E. Sulpizio

The use of filter aids and precoat filtration is ubiquitous in a wide number of industries, including chemicals, food processing, pharmaceuticals, mining, municipal (potable) water treatment and waste treatment. World Minerals Inc., the parent company of Celite and Harborlite, and other organizations have recently made major advances in filter aid technology. These advances have now pushed the ...

Journal: :Occupational and environmental medicine 1996
H Checkoway N J Heyer P A Demers G W Gibbs

OBJECTIVE To evaluate the potential for confounding from asbestos exposure, primarily chrysotile, on the relation between crystalline silica and mortality from lung cancer among diatomaceous earth (diatomite) workers. METHODS A reanalysis of a cohort mortality study of diatomite workers was performed to take into account quantitative estimates of asbestos exposure. The reanalysis was limited ...

Journal: :Eurasian Chemico-Technological Journal 2018

Journal: :DEStech Transactions on Engineering and Technology Research 2017

In this work, two clay-based composites are prepared for the adsorptive removal of the chloride ions from aqueous solutions. These composites are characterized through Fourier transform-infrared spectroscopy, scanning electron microscopy, X-ray fluorescence spectroscopy, and X-ray diffraction analysis. The effects of different parameters such as the contact time, amount of adsorbent, chlo...

Journal: :Environmental DNA 2022

Abstract Environmental DNA (eDNA) is a convenient biodiversity monitoring tool, and many studies have focused on river coastal areas, while deep‐water oceanic surveys are rare. However, using eDNA techniques to learn about communities may also be useful approach. We tested methods enhance ocean collections adding four different materials (sediment, diatomite, zirconia bead, molecular sieve) in ...

2006
M. Denli F. Okan

The ability of dietary hydrated sodium calcium aluminosilicate (HSCAS), diatomite and activated charcoal (AC) in reducing the detrimental effects of aflatoxin B1 (AFB1) in broiler diets was evaluated. Adsorbents were supplemented at 2.5 g/kg to the diets containing 0, 40 or 80 μg AFB1/kg feed. One hundred and eighty Ross 308, day-old male broilers were assigned to 12 treatments for 42 days. AFB...

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