Publikace detail

REMOVAL OF METALS FROM WATER USING SULFUR-OXIDIZE AND SULFATE-REDUCING BACTERIA

Rok: 2017

Druh publikace: ostatní - článek ve sborníku

Název zdroje: ChemZi

Název nakladatele: Slovenská chemická spoločnosť pri SAV

Místo vydání: Bratislava

Strana od-do: nestránkováno

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	REMOVAL OF METALS FROM WATER USING SULFUR-OXIDIZE AND SULFATE-REDUCING BACTERIA	In these days, microbial processes are very popular for water treatment, because these methods can be environmental friendly and cheaper than traditional processes of water cleaning. This work is focused on one of them - to removal of metals, whose sulfides are insoluble, from industrial waste water using sulfur-oxidizing and sulfate-reducing bacteria. For removal of undesirable metals from water, there was suggested a plant with three flow-through columns and all of them had individual function. The columns can be filled with specific filling, which can be used as source of electrons for metabolic processes of bacterial cells while as a carrier of bacterial biomass. The first column was used to create optimal conditions for sulfur-oxidize bacteria and solution of their metabolites was flown into the second one. In the second column was grown sulfate-reducing bacteria to create precipitants. In the third column was mixed liquids from the second column and cleaned water with undesirable metals. The precipitation reaction was in the third column out of bacterial cells. The experiments were in suggested plant for 300 days and in this period, effective removal of metals from water was observed.	Autotrophic denitrification; nitrates; Thiobacillus denitrificans

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