Results 11 to 20 of about 72,885 (205)

Determination of total chromium in environmental water samples

open access: yesWater Research, 2004
It is often desirable to quantify both dissolved Cr(VI) and total Cr in samples accurately. Various protocols are now being utilized to quantify the amount of total chromium in natural waters and each of these has possible interferences. This study describes the shortcomings of each method when particulate iron is present in a water sample, and a more ...
Parks, J. L.   +6 more
openaire   +5 more sources

Removal Efficiency of Total Chrome (Cr-T) from Textile Industry Wastewater PT. X with Sodium Bentonite Using the Adsorption Method

open access: yesJurnal Presipitasi, 2023
As much as 10-50% of dye wastewater from the dyeing process is discharged directly into the environment. Chromium is the metal most often found in textile industry wastewater, one of which comes from dyes of the Congo Red type, so processing is required.
Etih Hartati   +2 more
doaj   +1 more source

Effect of the Temperature on chromium precipitation in faucets [PDF]

open access: yesE3S Web of Conferences, 2021
The research was studying the chromium precipitation in faucets which were extracted at ambient temperature of 20 ºC, 40 ºC and 60 ºC by extraction solution, the results showed that in general, the chromium extraction in the faucets increased as the ...
Tingting Huang
doaj   +1 more source

Use of the Biochar Obtained by Slow Pyrolysis from Ulex Europaeus in the Removal of Total Chromium from the Bogotá-colombia River Water

open access: yesChemical Engineering Transactions, 2021
This paper explores the use of biochar obtained from the pyrolysis of Ulex Europaeus, an invasive species in the mountain ecosystems of Colombia, for the removal of total chromium from the water. The investigation was developed in two phases.
Katalina Gomez   +2 more
doaj   +1 more source

Effect of Azolla Imbricata and Spirodela Polyrrhiza on Chromium(VI) Removal and Power Generation in a Plant Microbial Fuel Cell

open access: yesInternational Journal of Electrochemical Science, 2021
In this study, we performed a remediation of hexavalent chromium-contaminated soil within a constructed plant microbial fuel cell and vary the voltage to study its power generation stability.
Hong Ye, Guangming Yang
doaj   +1 more source

Influence of organic chromium supplementation on the performance of beef calves undergoing weaning-related stress [PDF]

open access: yesPesquisa Veterinária Brasileira, 2020
: Dietary chromium supplementation before, during, and after weaning was conducted to evaluate the hypothesis that chromium supplementation could reduce weaning-induced cortisol release in beef calves.
Isadora K.F. Sousa   +6 more
doaj   +1 more source

Distribution of Chromium Species and Physico-Chemical Analysis of Various Industrial Effluents in Hyderabad and Jamshoro, Pakistan

open access: yesJournal of the Turkish Chemical Society, Section A: Chemistry, 2023
This research aimed to quantify the speciation of chromium in different industrial effluent samples of Hyderabad and Jamshoro, Pakistan. The hexavalent chromium (Cr(VI)) was determined by microsample injection system flame atomic absorption spectroscopy (
Muhammah KSHİF CHANNA   +8 more
doaj   +1 more source

Diversity of hexavalent chromium-reducing bacteria and physicochemical properties of the Kanpur tannery wastewater

open access: yesEnvironmental Chemistry and Ecotoxicology, 2023
The tannery effluent sample was collected from a tannery located in Jajmau area of Kanpur, India and subjected to physicochemical analysis. The tannery effluent was brownish in color with a foul odor.
Ashish Kumar   +5 more
doaj   +1 more source

Toxic chromium in water and the effects on the human body: a systematic review

open access: yesJournal of Water and Health, 2023
Both in developed and developing countries, there is a growing concern about the dangerous hexavalent chromium, in the consumption of drinking water. Hexavalent chromium is recognized to have a negative impact on the human body, both in the short and ...
Maria-Nefeli Georgaki   +1 more
doaj   +1 more source

Application of an Integrated System of Thermal Pressure Hydrolysis/Membrane Techniques to Recover Chromium from Tannery Waste for Reuse in Hide Tanning Processes

open access: yesMembranes, 2022
This paper presents the results of research on a new method of chromium recovery from solid waste generated during the tanning of raw hides. In the first stage, the shredded mixture of useless leather scraps is decomposed through thermal pressure ...
Anna Kowalik-Klimczak   +6 more
doaj   +1 more source

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