The Examination of Biogenic and Non-Biogenic Iron Precipitates Created by Hydrogen Sulphide

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F15%3A86096195" target="_blank" >RIV/61989100:27350/15:86096195 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

The Examination of Biogenic and Non-Biogenic Iron Precipitates Created by Hydrogen Sulphide

Popis výsledku v původním jazyce

Metabolism of sulphate-reducing bacteria (SRB) generally consists of organic substrates or molecular H2 oxidation and sulphates reduction under anaerobic conditions. By oxidizing low molecular weight organic compounds (e.g. lactate, acetate) they obtainenergy and nutrients. Biological-chemical process based on the ability and activity of these bacteria to reduce sulphates results in hydrogen sulphide creation which binds with metal cations in solutions to insoluble precipitate forms. In anoxic sedimentary environment with iron redundancy the amorphous iron sulphide is often the initial sulphide phase to be formed and exhibits poor crystallinity in the form of small crystal sizes and short-range crystal order. Although many studies have focused on themineralogy and surface chemistry of the more crystalline and more thermodynamically stable sulphides such as pyrite and pyrrhotite, an understanding of the crystal habit and surface chemistry of the more poorly crystalline Fe sulphides is

Název v anglickém jazyce

The Examination of Biogenic and Non-Biogenic Iron Precipitates Created by Hydrogen Sulphide

Popis výsledku anglicky

Metabolism of sulphate-reducing bacteria (SRB) generally consists of organic substrates or molecular H2 oxidation and sulphates reduction under anaerobic conditions. By oxidizing low molecular weight organic compounds (e.g. lactate, acetate) they obtainenergy and nutrients. Biological-chemical process based on the ability and activity of these bacteria to reduce sulphates results in hydrogen sulphide creation which binds with metal cations in solutions to insoluble precipitate forms. In anoxic sedimentary environment with iron redundancy the amorphous iron sulphide is often the initial sulphide phase to be formed and exhibits poor crystallinity in the form of small crystal sizes and short-range crystal order. Although many studies have focused on themineralogy and surface chemistry of the more crystalline and more thermodynamically stable sulphides such as pyrite and pyrrhotite, an understanding of the crystal habit and surface chemistry of the more poorly crystalline Fe sulphides is

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BO - Biofyzika

OECD FORD obor

—

Projekt

<a href="/cs/project/LO1406" target="_blank" >LO1406: Institut čistých technologií těžby a užití energetických surovin - Projekt udržitelnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Inžynieria Mineralna

ISSN

1640-4920

e-ISSN

—

Svazek periodika

34

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

6

Strana od-do

281-286

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—