Control of sulphide during anaerobic treatment of S-containing wastewaters by a...

• Author(s): Cirne, D. G. ; Van der Zee, F. P. ; Fernandez-Polanco, Maria ; Fernandez-Polanco, Fernando
• Date: 2008
• Persistent ID: http://hdl.handle.net/1822/7867
• Origin: RepositóriUM - Universidade do Minho
• Subject(s): Anaerobic treatment; Biogas; Control; Inhibition; Micro-aerobic; Nitrate; Sulphate; Sulphide
• Document Type: Article
• Language: English

Description

Sulphide generated during anaerobic treatment of S-containing wastewaters represents an environmental problem. Adding limited amounts of oxygen or nitrate (or nitrite) to biologically (or chemically) oxidise sulphide forms a simple process level strategy to control this problem. This short review evaluates the feasibility and limitations of this strategy on the basis of the results of bioreactor studies. Sulphide generated during anaerobic treatment of S-containing wastewaters represents an environmental problem. Adding limited amounts of oxygen or nitrate (or nitrite) to biologically (or chemically) oxidise sulphide forms a simple process level strategy to control this problem. This short review evaluates the feasibility and limitations of this strategy on the basis of the results of bioreactor studies.