Abstract
This paper reviews the operation of a full-scale, fixed-bed digester treating a citric acid production wastewater with a GOD: sulphate ratio of 3-4:1. Support matrix pieces were removed from the digester at intervals during the first 5 years of operation in order to quantify the vertical distribution of biomass within the digester. Detailed analysis of the digester biomass after 5 years of operation indicated that Hz and propionate-utilising SRB had outcompeted hydrogenophilic methanogens and propionate syntrophs. Acetoclastic methanogens were shown to play the dominant role in acetate conversion. Butyrate and ethanol-degrading syntrophs also remained active in the digester after 5 years of operation.
| Original language | English (Ireland) |
|---|---|
| Pages (from-to) | 233-245 |
| Number of pages | 13 |
| Journal | BIODEGRADATION |
| Volume | 9 |
| Issue number | 3-4 |
| Publication status | Published - 1 Jan 1998 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 6 Clean Water and Sanitation
Keywords
- Anaerobic digestion
- Citric acid production wastewater
- Methanogenesis
- Sulphate reduction
- Sulphide toxicity
- Sulphidogenesis
- Thermophilic digestion
Authors (Note for portal: view the doc link for the full list of authors)
- Authors
- Colleran E, Pender S, Philpott U, O'Flaherty V, Leahy B
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