products1

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Дата изменения: Thu Jul 19 13:09:34 2001
Дата индексирования: Mon Oct 1 22:04:35 2012
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products1 BIOMINERALIZATION AZO DYES IN AEROBIC-ANAEROBIC HYBRID REACTOR

Azo dyes are almost not biodegradable in aerobic conditions but are readily decolourised in anaerobic environments due to splitting of azo-bond
.

Siriusgelb (C₂₇H₁₈O₇N₆Na₂, MW=584) Siriuslichtbraun (C₃₅H₂₂O₁₃N₆S₂Na₂, MW=840)

Anaerobically decolourised liquors are more susceptible to biomineralization under aerobic conditions. Such behaviour of tested azo dyes dictate an anaerobic-aerobic sequence in designing an efficient biomineralization process.

Developed Anaerobic-Aerobic Hybrid Reactor (AnAHR)

Performance for treatment of Siriusgelb based wastewater

Ethanol as electron donor. HRT - 1 day, load - 0.3 g azo dye-COD/l/day.

Almost complete decolourisation, 60 % removal of azo dye COD, Effluent < 0.125 g COD/l

Treated Untreated

Contact person:

Dr. S.V.Kalyuzhnyi, Dept. of Chem. Enzymology, Chemistry Faculty., Moscow State University, 119899

Moscow, Russia; Phone: 7-(095)-9395083; Fax: 7-(095)-9395417; email: svk@enz.chem.msu.ru

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