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Startup of Moving Bed Biofilm Reactor for Leachate Treatment

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Title Startup of Moving Bed Biofilm Reactor for Leachate Treatment
 
Creator Garg, Mukesh Kumar
Wadhwa, Tribhuvan Narayan
Hussain, Athar
Harne, K R
 
Subject Chemical Oxygen Demand
Hydraulic retention time
Moving bed biofilm reactor
Total suspended solids
 
Description 735-740
The tremendous increase in population in the last few decades has resulted in massive unmanageable solid waste
products across the country. The leachate produced during decomposition of solid waste can be treated using conventional
systems but proves to be uneconomical and requires a long duration thus leading to environmental unsustainability.
However, recent advancements in wastewater treatment have emerged with moving bed biofilm reactor (MBBR) and is
gaining popularity around the globe. The system is economical as it requires less land area while treating high quantum of
wastewater in short time duration. The present study has been carried out with an objective to treat the landfill leachate
using laboratory-scale aerobic MBBR system. The microorganisms were acclimatized for leachate degradation by feeding
the reactor with varying composition of glucose and leachate with a COD inlet concentration of 1000 mg/L at HRT of 21 h.
In Phase-I of the study, the reactor was operated with 100% glucose and resulted in 95 % COD removal with 90% TSS
removal. In Phase-II of the reactor operation with inlet feed containing 75% glucose and 25% leachate resulted in 93% COD
removal with 89% TSS removal. In Phase-III of the study duration, the reactor when fedwith 50% glucose and 50% leachate
resulted in 91% of COD removal and 91% of TSS removal. However, on the 100th day of the study, the reactor was
switched to 100% leachate and under pseudo steady state a COD removal of 84% and with TSS removal of 92% was being
assessed. The kinetic parameters including sludge growth rate, decay coefficient and sludge yield were assessed in each step
of the study. The results from the present study indicate that MBBR is an efficient technology that can remove 84 %of
CODand92% TSS from leachate efficiently and effectively with a sustainable method.
 
Date 2023-12-22T10:58:15Z
2023-12-22T10:58:15Z
2023-12
 
Type Article
 
Identifier 0975-1017 (Online); 0971-4588 (Print)
http://nopr.niscpr.res.in/handle/123456789/63066
https://doi.org/10.56042/ijems.v30i5.6885
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJEMS Vol.30(5) [October]