AI Article Synopsis
- The paper discusses the experimental results of a new wastewater treatment technology called SBBGR (Sequencing Batch Biofilter Granular Reactor), supported by the EU Life programme, which was tested on both municipal and industrial wastewater.
- For municipal wastewater, the SBBGR system efficiently removed 80-90% of key pollutants like COD, suspended solids, and ammonia, regardless of varying hydraulic residence times (from 4 to 12 hours).
- When applied to tannery wastewater, it also achieved similar removal efficiencies at high organic loading rates, while maintaining a longer sludge age and producing significantly less sludge compared to conventional treatment methods.
Article Abstract
The paper reports the results of an experimental investigation aimed at transferring to demonstrative scale an innovative technology (SBBGR-Sequencing Batch Biofilter Granular Reactor) for the treatment of municipal and industrial wastewater by financial support of the EU Life programme. When this technology was applied for treating municipal wastewater, the results showed that the system was able to remove 80-90% of COD, total suspended solids and ammonia independently of the hydraulic residence time investigated (i.e., from 12 to 4 h). In the case of tannery wastewater, chosen as representative of concentrated industrial wastewater, SBBGR technology was suitable for removing 80-90% of the COD, suspended solids and ammonia content up to organic loading values of 3.5 kg COD/m3.d. During both periods, the process was characterised by a very high sludge age value (theta(c) approximately 150 d) that led to a biomass concentration as high as 35 gTSS/L(bed) and a sludge production much lower (5-6 times lower) that than commonly reported for conventional treatment plants.
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| http://dx.doi.org/10.2166/wst.2008.395 | DOI Listing |
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