Efeito da aplicação de nitrato na redução biogênica de sulfeto sob diferentes concentrações iniciais de bactérias redutoras de nitrato e sulfato

Química Nova

Kally Alves De Sousa¹  Magali Christe Cammarota¹  Eliana Flávia Camporese Sérvulo¹ 

[1] ,Universidade Federal do Rio de Janeiro Escola de Química Departamento de Engenharia BioquímicaRio de Janeiro RJ ,Brasil

关键词: nitrate;    sulphate-reducing bacteria;    nitrate-reducing bacteria;   

DOI  :  10.1590/S0100-40422010000200008

来源: SciELO

【 摘 要 】

The effect of sodium nitrate application in the reduction of biogenic sulphide was evaluated through a 2k complete factorial design, using as variable response the production of sulfide at intervals of incubation of 7, 14 and 28 days. The most effective condition for reducing the sulphide production (final concentrations from 0.4 to 1.6 mg S2- L-1) was obtained with an initial population of sulphate-reducing bacteria and nitrate-reducing bacteria of 10(4) MPN mL-1 and 427.5 mg L-1 nitrate. The results also suggested that the applications of nitrate to control the process of souring should follow a continuous scheme.

【 授权许可】

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