title: Correlating on-line monitoring parameters, pH, DO and ORP with nutrient removal in an intermittent cyclic process bioreactor system.
abstract: The paper presents the study correlating the profile of on-line monitoring parameters and nutrient removal in an intermittent cyclic process bioreactor (ICPBR) system, thereby utilizing the parameters as operational tool. A laboratory scale ICPBR was employed to treat low C/N ratio domestic wastewater from a township. The study was conducted for correlating biological nutrient removal and on-line monitored parameters pH, dissolved oxygen (DO) and oxidation-reduction potential (ORP). The results revealed that pH, DO and ORP related with the dynamic behavior of nutrient concentration (NH4-N, NO3-N, and PO4-P) during treatment in an ICPBR system. The variation in pH and ORP of the reactor liquor correlate to conversion of ammonia (NH4-N) and nitrate (NO3-N) concentrations, respectively. As the bioconversion of ammonia nitrogen and phosphorus are related to the varying profile of the on-line monitored parameters, the profiles could possibly be used as onsite process control parameters.
authors: National Environmental Engineering Research Institute, Wastewater Technology Division, Nehru Marg, Nagpur, Maharashtra 440 020, India.
authors: Pankaj
authors: P
authors: Tanwar
authors: Tapas
authors: T
authors: Nandy
authors: Pallavi
authors: P
authors: Ukey
authors: Pravin
authors: P
authors: Manekar
mesh_terms: D000641:Ammonia / Q000032:analysis; D019149:Bioreactors; D006863:Hydrogen-Ion Concentration; D009584:Nitrogen / Q000032:analysis; D009862:Online Systems; D010084:Oxidation-Reduction; D010100:Oxygen / Q000032:analysis*; D010758:Phosphorus / Q000032:analysis; D011188:Potassium / Q000032:analysis; D012722:Sewage / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*
chemical_list: D012722:Sewage; D010758:Phosphorus; D000641:Ammonia; D009584:Nitrogen; D011188:Potassium; D010100:Oxygen