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  2. Ferrochrome - Wikipedia

    en.wikipedia.org/wiki/Ferrochrome

    Ferrochrome or ferrochromium (FeCr) is a type of ferroalloy, that is, an alloy of chromium and iron, generally containing 50 to 70% chromium by weight. [ 1 ] [ 2 ] Ferrochrome is produced by electric arc carbothermic reduction of chromite .

  3. Chromite - Wikipedia

    en.wikipedia.org/wiki/Chromite

    The excretion of this type of chromium from the body tends to be very slow which means that elevated concentrations of chromium can be seen decades later in human tissues. [23] Environmental effects. Chromite mining, chromium, and ferrochrome production can toxically effect the environment. [23]

  4. List of countries by chromium production - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    This is a list of countries by chromium ore production in 2023, based on the United States Geological Survey. [1] Chromium is a chemical element that is designated by the symbol Cr and has an atomic number of 24. It is usually found as the mineral chromite, from which ferrochrome is produced in a smelting process.

  5. Marine chemistry - Wikipedia

    en.wikipedia.org/wiki/Marine_chemistry

    Marine chemistry, also known as ocean chemistry or chemical oceanography, is the study of the chemical composition and processes of the world’s oceans, including the interactions between seawater, the atmosphere, the seafloor, and marine organisms. [2]

  6. River Continuum Concept - Wikipedia

    en.wikipedia.org/wiki/River_continuum_concept

    This prevents the penetration of sunlight, in turn decreasing the production of organic material through photosynthesis in the water. The majority of the organic matter that does make its way into the system is in the form allochthonous plant material that falls into the river, such as leaves and sticks.

  7. Chemocline - Wikipedia

    en.wikipedia.org/wiki/Chemocline

    The Black Sea is an example of a body of water with a prominent chemocline, though similar bodies (classified as meromictic lakes) exist across the globe. [ 4 ] [ 5 ] Meromictic lakes are the result of meromixis, which is a circumstance where a body of water does not fully mix and circulate, causing stratification .

  8. Ferrichrome - Wikipedia

    en.wikipedia.org/wiki/Ferrichrome

    Ferrichrome is a cyclic hexa-peptide that forms a complex with iron atoms. It is a siderophore composed of three glycine and three modified ornithine residues with hydroxamate groups [-N(OH)C(=O)C-].

  9. Bacteriological water analysis - Wikipedia

    en.wikipedia.org/wiki/Bacteriological_water_analysis

    Bacteriological water analysis is a method of analysing water to estimate the numbers of bacteria present and, if needed, to find out what sort of bacteria they are. It represents one aspect of water quality. It is a microbiological analytical procedure which uses samples of water and from these samples determines the concentration of bacteria ...