Biotransformation of phosphogypsum by bacteria isolated from petroleum-refining wastewaters

• Autorzy: Wolicka D , Kowalski W. , Boszczyk-Maleszak H.
• Języki publikacji: EN

Abstrakty

EN

The biotransformation of phosphogypsum in cultures of sulfate-reducing bacteria (SRB) isolated from crude petroleum-refining wastewaters or purified using activated sludge method was studied. Selection was with the microcosms method on Postgate and minimal medium with different carbon sources, Emerson medium and petroleum-refining wastewaters. Highest hydrogen sulfide production, in excess of 500 mg/L, was observed in culture of microorganisms isolated from purified petroleum-refining wastewaters in Postgate medium with phenol as sole carbon source. 76% phenol reduction with simultaneous biotransformation of 2.7g phosphogypsum/L (1350 mg SO₄/L) was obtained. The results regarding post-culture sediment indicated 66% utilization of phosphogypsum introduced into the culture (5 g/L), which reflects the active biotransformation of phosphogypsum by the community selected from the wastewaters.

Słowa kluczowe

EN

phenol; biotransformation; bacteria; petroleum refining waste water; sulphate-reducing bacteria; phosphogypsum

• Wydawca: -
• Czasopismo: Polish Journal of Microbiology
• Rocznik: 2005
• Tom: 54
• Numer: 2
• Opis fizyczny: p.169-173,fig.,ref.

Twórcy

autor

Wolicka D

• Warsaw University, Zwirki i Wigury 93, 02-089 Warsaw, Poland

autor

Kowalski W.

autor

Boszczyk-Maleszak H.

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