Resolution of Conflict of Reduced Sludge Production with EBPR by Coupling OSA to A2/O Process in a Pilot Scale SBR.
The pinnacle of all the efforts of nutrient removal is practically put-down the moment biological cells are lysed,
hydrolyzed or digested causing subsequent reappearance of assimilated nitrogen and phosphorus in any biological
process. While sludge reduction requires high SRT, the enhanced phosphorus assimilative uptake demands
low SRT. A novel reactor configuration for enhanced sludge and phosphorus removal was put to test by
incorporating a side stream anaerobic reactor to an Anaerobic-Anoxic-Aerobic (A2O) SBR with a pre-anoxic
chamber and an influent receiving inlet anaerobic reactor. The reactor was operated at the average and
lowest range of prevailing carbon/phosphorus (C/P) ratio of 50 and 15 in the sewage. The phosphorus enrichment
was 0.0469–0.135 mgTP/mgVSS resulting in 1.76–5.05-fold increase from cellular content by virtue of
maintaining sludge recycle from SBR aeration tank to side stream anaerobic reactor from 3.78 to 9.78 (average
4.4–8.2) gVSS/gVSS present in the reactor. However, the sludge was also reduced from 3% to 51% on an average
As a result of rising industrialization, wastewater production has increased dramatically,
necessitating effective treatment to safeguard ground and surface water
pollution (Khan et…
The pinnacle of all the efforts of nutrient removal is practically put-down the moment biological cells are lysed,
hydrolyzed or digested causing subsequent reappearance of assimilated…
In this work, we present an eight-month longitudinal study of wastewater-based epidemiology (WBE) in
Ahmedabad, India, where wastewater surveillance was introduced in September 2020 after…