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Evaluation of High Rate MBBR to Predict Optimal Design Parameters for Higher Carbon and Subsequent Ammoniacal Nitrogen Removal


Affiliations
1 Department of Technology, Savitribai Phule Pune University, Pune - 411 007, India
2 COE Biotechnology, R.D. Aga Research, Technology and Innovation Centre, Thermax Ltd, Pune - 411 019, India
 

The high rate moving bed biofilm reactor (MBBR) processes were designed for wastewater treatment to meet the past effluent discharge norms of biological oxygen demand (BOD) <50 mg/l. However, they are incapable of meeting current effluent discharge norms which consist of BOD <10 mg/l and total nitrogen <10 mg/l. This study analyses the effect and variation of organic loading rate from 1.21 kg to 4.59 kg chemical oxygen demand (COD)/(m3 day) and surface loading rate from 4.9 g to 24 g COD/(m2 day) on a high rate MBBR performance. The results of COD reduction (CODred) and subsequent ammoniacal nitrogen reduction (NH3–Nred) were in the range of 65.4% to 87.8% and 11.8% to 47.2% respectively. The projected graphical optimization defines the design parameters for MBBR and also predicts CODred and subsequent NH3–Nred. By understanding this subsequent NH3–Nred in the MBBR system, future designs for engineering technologies will be aided.

Keywords

Graphically, HRT, MBBR, Optimized, Organic Load, Wastewater.
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  • Evaluation of High Rate MBBR to Predict Optimal Design Parameters for Higher Carbon and Subsequent Ammoniacal Nitrogen Removal

Abstract Views: 189  |  PDF Views: 67

Authors

Sandip Magdum
Department of Technology, Savitribai Phule Pune University, Pune - 411 007, India
V. Kalyanraman
COE Biotechnology, R.D. Aga Research, Technology and Innovation Centre, Thermax Ltd, Pune - 411 019, India

Abstract


The high rate moving bed biofilm reactor (MBBR) processes were designed for wastewater treatment to meet the past effluent discharge norms of biological oxygen demand (BOD) <50 mg/l. However, they are incapable of meeting current effluent discharge norms which consist of BOD <10 mg/l and total nitrogen <10 mg/l. This study analyses the effect and variation of organic loading rate from 1.21 kg to 4.59 kg chemical oxygen demand (COD)/(m3 day) and surface loading rate from 4.9 g to 24 g COD/(m2 day) on a high rate MBBR performance. The results of COD reduction (CODred) and subsequent ammoniacal nitrogen reduction (NH3–Nred) were in the range of 65.4% to 87.8% and 11.8% to 47.2% respectively. The projected graphical optimization defines the design parameters for MBBR and also predicts CODred and subsequent NH3–Nred. By understanding this subsequent NH3–Nred in the MBBR system, future designs for engineering technologies will be aided.

Keywords


Graphically, HRT, MBBR, Optimized, Organic Load, Wastewater.

References





DOI: https://doi.org/10.18520/cs%2Fv116%2Fi12%2F2083-2088