نتایج جستجو برای: chromium iii

تعداد نتایج: 279746  

2008
TSUBASA FUKUDA KADZUYO TSUTSUMI YASUHIRO ISHINO TAKAHIRO SATOU AKANE OGAWA HIROSHI MORITA

Chromium (Cr), a widespread environmental pollutant, is released from various industries including tanneries, metal cleaning and processing, chromium plating, wood processing, and alloy formation. In the developing as well as in the underdeveloped countries, the industrial effluents are released directly or indirectly into the natural water resources, mostly without proper treatment, posing a m...

2017
Krystyna Pyrzynska

MOJ Food process Technol 2017, 4(3): 00096 The most stable oxidation states of chromium, e.g. Cr(III) and Cr(VI), exhibit significantly different biological and toxicological properties. Cr(III) is considered as an essential element for the proper functioning of living organisms, particularly in glucose metabolism, while Cr(VI) shows mutagenic effects. It is regarded as carcinogenic owing to it...

Journal: :Journal of environmental management 2010
Saidur Rahman Chowdhury Ernest K Yanful

Adsorption of arsenic and chromium by mixed magnetite and maghemite nanoparticles from aqueous solution is a promising technology. In the present batch experimental study, a commercially grade nano-size 'magnetite', later identified in laboratory characterization to be mixed magnetite-maghemite nanoparticles, was used in the uptake of arsenic and chromium from different water samples. The inten...

2017
M Mohamed Amanullah

The adsorption of chromium species in soils has received much attention because of its toxicity and bioavailabilities, which are adsorption depended. There are very little studies on adsorption of chromium in sandy loam soil. Hence, this paper presents the Cr adsorption capacity of sandy loam soil under chromium spiked condition. A batch technique was used to perform cr adsorption studies. Soil...

2007
KAREL KOLOMAZNÍK MILAN ADÁMEK

This contribution deals with the waste from the processes in which raw hide is transformed into leather, as well as with the waste generated during further leather processing and the final waste of leather industry, the worn-out shoes. All this waste, if deposited in the open-air dumps, represents a potential threat to human health, because it contains trivalent chromium (Cr III), which can oxi...

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