Augmentation of Biogranules for Enhanced Performance of Full-Scale Lagoon-Based Municipal Wastewater Treatment Plants

This study investigated the treatment performance of lagoon-based municipal wastewater treatment plants (LWWTPs) inoculated by proprietary biogranules. Augmentation process included enhancing the microbial community of lagoon basins by weekly addition of biogranules over the treatment seasons (summe...

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Bibliographic Details
Published in:Applied biochemistry and biotechnology 2020-05, Vol.191 (1), p.426-443
Main Authors: Pishgar, Roya, Lee, Jonathan, Dominic, John Albino, Hosseini, Sadegh, Tay, Joo Hwa, Chu, Angus
Format: Article
Language:English
Subjects:
Ammonium
Ammonium Compounds - metabolism
Augmentation
Biochemical oxygen demand
Biochemistry
Biotechnology
Chemistry
Chemistry and Materials Science
E coli
Effluents
Escherichia coli - growth & development
Lagoons
Low concentrations
Microbiota
Microorganisms
Municipal wastewater
Nitrogen
Nitrogen - metabolism
Performance enhancement
Phosphorus
Phosphorus - metabolism
Sludge
Waste Disposal, Fluid
Waste Water - microbiology
Wastewater treatment
Wastewater treatment plants
Water Purification
Water treatment
Water treatment plants
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Summary:This study investigated the treatment performance of lagoon-based municipal wastewater treatment plants (LWWTPs) inoculated by proprietary biogranules. Augmentation process included enhancing the microbial community of lagoon basins by weekly addition of biogranules over the treatment seasons (summer and fall). Effluent qualities before and after the augmentation process were compared, and the results were reported as “enhanced treatment efficiencies, E E ”. Very low concentrations of 5-day biochemical oxygen demand (BOD 5 ), total nitrogen (TN), total Kjeldahl nitrogen (TKN), ammonium nitrogen (N-NH 4 ), and total phosphorus (TP) were detected at discharge points after the augmentation process, which corresponded to enhanced treatment efficiencies of 86, 74, 72, 92.7, and 71%, respectively. Significant reduction in total coliform and E. coli concentrations in the effluents (91 and 98%, respectively) demonstrated the capability of granule-based lagoons in destroying pathogens. Adding biogranules to lagoons was an efficient remedy for excess sludge buildup in short and long runs. Hence, inoculating lagoon plants using biogranules was suggested as an effective technique to augment rural wastewater treatment facilities.
ISSN:0273-2289
1559-0291
DOI:10.1007/s12010-020-03256-3