Sequencing Batch Reactor (SBR) treatment for simultaneous organic carbon and nitrogen removal--a laboratory study.
The performance of a laboratory-scale Sequencing Batch Reactor (SBR) has been studied in aerobic-anoxic sequence for simultaneous organic carbon and nitrogen removal. The reactor was operated under three different variations of aerobic-anoxic sequence, viz. 4+4, 5+3 and 3+5 hours with input solutions of soluble COD (SCOD) level 1000 +/- 100 mg/L and initial ammonia nitrogen of 40 and 90 mg/L. It has been observed that 85 to 92% of SCOD removal would be possible at the end of 8.0 hour of overall reaction period, irrespective of the length of the aerobic react period. In the case of 4+4 hour operating cycle, reasonable degree of nitrification (88-100%) and denitrification (73-75%), along with 91-94% of organic carbon removal have been achieved, which has been considered to be the optimum performance of the reactor.
Debsarkar
Anupam
A
Environmental Engineering Division, Civil Engineering Department, Jadavpur University, Kolkata 700 032.
Mukherjee
Somnath
S
Datta
Siddhartha
S
D000332:Aerobiosis; D000641:Ammonia / Q000378:metabolism; D000693:Anaerobiosis; D019149:Bioreactors; D002244:Carbon / Q000378:metabolism*; D007753:Laboratories; D009566:Nitrates / Q000378:metabolism; D009573:Nitrites / Q000378:metabolism; D009584:Nitrogen / Q000378:metabolism*; D010084:Oxidation-Reduction; D010865:Pilot Projects; D014865:Waste Disposal, Fluid / Q000379:methods; D014874:Water Pollutants, Chemical / Q000378:metabolism*
D009566:Nitrates; D009573:Nitrites; D014874:Water Pollutants, Chemical; D002244:Carbon; D000641:Ammonia; D009584:Nitrogen