Temat: Cr(VI) - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Biological removal of Cr(VI) ions from aqueous solutions by trichoderma viride
Autorzy:: Holda, A.
Kisielowska, E.
Powiązania:: https://bibliotekanauki.pl/articles/109693.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: bioaccumulation
chromium
Cr(VI)
microscopic fungi
Trichoderma viride
Opis:: The paper presents biological removing of Cr(VI) ions from aqueous solution by applying autochtonic fungi seedling of Trichoderma viride originated from chromium mud samples. The growth of organism and removing of chromium(VI) was performed in aqueous solution of various chromium(VI) contents and at optimal value of pH. During 14 days of incubation, samples of 5 cm3 each were collected every day for determination of chromium(VI) in solution and the efficiency of biological removal was specified. Since removal of chromium(VI) from aqueous solution may occur because of reduction, biosorption or bioaccumulation processes, to determine which one occurred, the Cr(III) contents were determined in samples of the medium as well in ooze after mycelium irrigating and in mycelium.
Źródło:: Physicochemical Problems of Mineral Processing; 2013, 49, 1; 47-60
1643-1049
2084-4735
Pojawia się w:: Physicochemical Problems of Mineral Processing
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Chromium(VI) uptake and resistance by P. kudriavzevii AM-4 and Candida sp. PSM-33 and their potential use in wastewater treatment plants
Autorzy:: Ilyas, Sidra
Bukhari, Dilara A.
Rehman, Abdul
Powiązania:: https://bibliotekanauki.pl/articles/2032907.pdf
Data publikacji:: 2020
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: Cr(VI)
Candida sp.
wastewater treatment plant
oczyszczalnia ścieków
Opis:: Two yeast strains already identified as Pichia kudriavzevii AM-4 and Candida sp. PSM-33 were able to resist Cr(VI) up to 400 and 350 mg/dm3, respectively. The stability and optimum temperature of chromate reductase in both yeast strains was maximal at 30 °C. Candida sp. PSM-33 showed the higher chromate reductase activity at pH 5 whereas P. kudriavzevii AM-4 exhibited maximum activity at pH 7. Both chromate reductases (ChRs) activities were enhanced in the presence of Mg, Na, Co, and Ca but strongly inhibited by Hg cations. The total cell Cr(VI) uptake capabilities were 15–68 mg/g in Candida sp. PSM-33 and 17–73 mg/g in P. kudriavzevii AM-4 within 2–12 days of growth. It was found that 23–94% of Cr(VI) reduction was achieved by P. kudriavzevii AM-4 while Candida sp. PSM-33 showed 21–88% reduction at a concentration of 100 mg/dm3. Proteins extracted from P. kudriavzevii AM-4 and Candida sp. PSM-33 followed by one-dimensional electrophoresis revealed enriched bands of low molecular-weight metallothioneins (MTs) suggesting some differential proteins could be expressed under Cr(VI) treatment. Both yeast strains can be used to ameliorate the wastewater contaminated with toxic metal ions.
Źródło:: Environment Protection Engineering; 2020, 46, 4; 57-68
0324-8828
Pojawia się w:: Environment Protection Engineering
Dostawca treści:: Biblioteka Nauki

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