Abstract
Bioprocess evaluation of a staged arrangement of a pulse driven loop reactor (PDLR) and a pulsed anaerobic filter (PAF) using highly polluted cherry slops as industrial wastewater shows a COD removal efficiency of 80-90% at loading rates of 8-4kg COD/(m"SUP 3" .d). Contamination of cherry slops by sulfate (2g/l) and copper (150-200mg/l) reduces COD degradation to 40-50%. A pulsed anaerobic baffled reactor was used as a corrective tool to improve mineralisation in the presence of sulfate-rich substrates by confining sulfate reducing bacteria to the first 4 chambers of the reactor. Phasing slightly improves COD degradation yield, but is not sufficient for stable process performance. Consequently, the use of lactic acid instead of sulfuric acid in cherry-fermentation was suggested as a preventive method to avoid sulphide-induced digester failure. (English summary)
| Translated title of the contribution | Anaerobic treatment of sulphate-containing wastewater from distilleries |
|---|---|
| Original language | German |
| Pages (from-to) | 590-594 |
| Number of pages | 5 |
| Journal | GWF, Wasser - Abwasser |
| Volume | 135 |
| Issue number | 10 |
| State | Published - 1994 |