نتایج جستجو برای: chromium electroplating

تعداد نتایج: 25774  

Journal: :Energies 2022

Solar energy presents the greatest potential by which to produce heat with reduced carbon emissions for power generation. To increase its harvesting and conversion, it is necessary understand fundamental concepts develop new materials. Although many processes can obtain selective absorbing surfaces (SAS) application in solar exploitation, including electroplating methods, those have not suffici...

In this study, Taguchi experimental design has been used for the optimization of thickness of chromium layers. For this purpose brass materials have been electroplated under various conditions of the process. An orthogonal array (OA) was employed to analyze the effect of plating parameters on the characteristic of the thickness. Variables which were considered for working were as following; amo...

2008
Suresh Gupta B. V. Babu

Chromium is abundant in nature and has a dominant presence in most of the effluent streams as compared to other heavy metal ions. The presence of highly toxic and carcinogenic hexavalent chromium (Cr(VI)) in effluent streams is a major environmental issue. The electroplating and tannery industry effluents are the major source for the Cr(VI) production in wastewater streams. The present work dea...

2017
Li-Chun Wu Teh-Hua Tsai Man-Hai Liu Jui-Ling Kuo Yung-Chu Chang Ying-Chien Chung

The extensive use of Cr(VI) in many industries and the disposal of Cr(VI)-containing wastes have resulted in Cr(VI)-induced environmental contamination. Cr(VI) compounds are associated with increased cancer risks; hence, the detection of toxic Cr(VI) compounds is crucial. Various methods have been developed for Cr(VI) measurement, but they are often conducted offsite and cannot provide real-tim...

Journal: :Revista Eletrônica em Gestão, Educação e Tecnologia Ambiental 2023

The anthropic impacts on the environment, its perception and prevention are constant objects of studies aimed at improving quality life. Within this comprehensive area, process galvanization for metals generated waste was evaluated here, because is an effective alternative in protection against corrosion, also a good ally useful life metal parts although practical profitable, generates huge vol...

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