Chromium is commonly present in the surroundings as a result of its natural occurrence, human activities from industries and agriculture [1]. Most industrial processes produce metals as byproduct in the ecosystem, and these may end-up in tissues of bird species existing in such natural ecosystems [2]. In most cases, the concentration may be higher than the permissible limit in avian species. Ch...

You are to be congratulated on publishing the very thought-provoking article by P. 0. Ganrot, entitled "Metabolism and Possible Health Effects of Aluminum" (1). After reviewing a substantial part of the extensive literature, Ganrot analyzes it carefully and shows that an element of the properties of aluminum will indeed prejudice normal function if it reaches sensitive parts of the organism. Hi...

Half of today's global energy consumption is in the form heating and cooling. Solar collectors are most promising sustainable alternative to fossil fuels this sector. The important component a solar collector receiver, which by use selective surface absorbs converts irradiance thermal energy. Herein, novel for low-to mid-temperature developed, studied presented. produced electroplating cobalt-c...

The method described in this study is a robust and sensitive method for the simultaneous determination of trivalent and hexavalent chromium (Cr(III) and Cr(VI)) in an exhaled breath condensate (EBC) sample and drinking water proficiency testing material sample. The method uses a hyphenated micro liquid chromatography (mLC) system coupled to inductively coupled plasma mass spectrometry (ICP-MS)....

The purpose of this study is to develop a technical process for removing trivalent chromium from tannery wastewater via precipitation. This process can be considered an alternative that avoids a remediation procedure against the metal presence in industrial wastes. This process was verified in a treatment pilot plant located in León, México handling 10 m3/day of three types of effluents. The ef...

Chromium (Cr) is a heavy metal that naturally occurs in the Earth’s crust, and can be found in groundwater in either the trivalent, Cr(III), or in the hexavalent, Cr(VI), form. While Cr(III) is considered an essential trace element for the human body, Cr(VI) is potentially dangerous for human health although the type and intensity of the effect are still being investigated. The widespread use o...

This paper utilizes data from two pilot studies conducted at Superfund Sites to discuss the electrochemical iron addition process developed by Andco Environmental Processes, Inc. Electrical current and steel electrodes were used to put ferrous and hydroxyl ions into solution. Once added, the chemistry was properly manipulated to provide coprecipitation and adsorption conditions capable of simul...

Water is second most essential for human being. Contamination of water makes it unsuitable for human consumption. Chromium ion is released to water bodies from various industries having high toxicity which affects the biota life in these waters. In this study aluminum oxide hydroxide was tested for its efficiency to remove trivalent chromium from aqueous solutions through batch mode experiments...