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Techno-Economic Assessment of Full Scale MBBRs Treating Municipal Wastewater Followed by Different Tertiary Treatment Strategies: A Case Study from India


Affiliations
1 Environmental Engineering Group, Deptt. of Civil Engineering, Indian Institute of Technology, Roorkee-247 667, India
2 Deptt. of Civil Engineering, Indian Institute of Technology, Roorkee, India
 

The moving bed bioreactors (MBBRs) systems have been reported as sustainable treatment systems for municipal as well as industrial wastewaters in developing countries. However, the inability of the MBBR process to meet the current disposal standards has given enough stimulation for ensuing appropriate tertiary treatment. This study was aimed to techno-economic evaluation of different tertiary treatment strategies (physico-chemical processes) of three full-scale moving bed bioreactor (MBBR) systems to make it justifiable for environmental protection, resource preservation and recovering maximum resources. The combination of the MBBR and tertiary treatment enhanced the performance of the overall treatment process and the COD removal efficacy of the whole treatment system reached upto 96%. The approximate cost of the treatment and specific power consumption was analyzed as Rs. 12.50 (± 20%) and 0.6 (±20%) kWh/m3 respectively, as depending on the terrain, drive, electricity cost and area classification. Average land requirement was estimated as ~180 m2 (±20%) and pollutant removal efficiencies were noted as ~95% (±3%). This conceptual approach allows a direct up scaling of small scale wastewater treatment plants and explores the reusability potential of treated effluent of this kind of system.

Keywords

Moving Bed Bioreactor, Tertiary Treatment, Techno-Economic Analysis, Wastewater Treatment.
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  • Techno-Economic Assessment of Full Scale MBBRs Treating Municipal Wastewater Followed by Different Tertiary Treatment Strategies: A Case Study from India

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Authors

Nitin Kumar Singh
Environmental Engineering Group, Deptt. of Civil Engineering, Indian Institute of Technology, Roorkee-247 667, India
Pankaj Banyal
Environmental Engineering Group, Deptt. of Civil Engineering, Indian Institute of Technology, Roorkee-247 667, India
Absar Ahmad Kazmi
Deptt. of Civil Engineering, Indian Institute of Technology, Roorkee, India

Abstract


The moving bed bioreactors (MBBRs) systems have been reported as sustainable treatment systems for municipal as well as industrial wastewaters in developing countries. However, the inability of the MBBR process to meet the current disposal standards has given enough stimulation for ensuing appropriate tertiary treatment. This study was aimed to techno-economic evaluation of different tertiary treatment strategies (physico-chemical processes) of three full-scale moving bed bioreactor (MBBR) systems to make it justifiable for environmental protection, resource preservation and recovering maximum resources. The combination of the MBBR and tertiary treatment enhanced the performance of the overall treatment process and the COD removal efficacy of the whole treatment system reached upto 96%. The approximate cost of the treatment and specific power consumption was analyzed as Rs. 12.50 (± 20%) and 0.6 (±20%) kWh/m3 respectively, as depending on the terrain, drive, electricity cost and area classification. Average land requirement was estimated as ~180 m2 (±20%) and pollutant removal efficiencies were noted as ~95% (±3%). This conceptual approach allows a direct up scaling of small scale wastewater treatment plants and explores the reusability potential of treated effluent of this kind of system.

Keywords


Moving Bed Bioreactor, Tertiary Treatment, Techno-Economic Analysis, Wastewater Treatment.

References