Treatment of municipal landfill leachate at different stabilization stages in two-stage membrane bioreactor bioaugmented with Alcaligenes faecalis no. 4

2020 ◽  
Vol 11 ◽  
pp. 100528
Author(s):  
Ngech Horng Heang ◽  
Chart Chiemchaisri ◽  
Wilai Chiemchaisri ◽  
Makoto Shoda
Keyword(s):  
Landfill Leachate ◽  
Membrane Bioreactor ◽  
Alcaligenes Faecalis ◽  
Two Stage ◽  
Municipal Landfill

Removal of organic micro-pollutants from solid waste landfill leachate in membrane bioreactor operated without excess sludge discharge

2012 ◽  
Vol 66 (8) ◽  
pp. 1774-1780 ◽  
Author(s):  
V. Boonyaroj ◽  
C. Chiemchaisri ◽  
W. Chiemchaisri ◽  
K. Yamamoto
Keyword(s):  
Solid Waste ◽  
Landfill Leachate ◽  
Membrane Bioreactor ◽  
Hollow Fiber Membrane ◽  
Oxygen Demand ◽  
Disposal Site ◽  
Two Stage ◽  
Mixed Liquor ◽  
Aerobic Reactor ◽  
Micro Pollutants

Two-stage membrane bioreactor (MBR) system was applied to the treatment of landfill leachate from a solid waste disposal site in Thailand. The first stage anoxic reactor was equipped with an inclined tube module for sludge separation. It was followed by an aerobic stage with a hollow fiber membrane module for solid liquid separation. Mixed liquor sludge from the aerobic reactor was re-circulated back to anoxic reactor in order to maintain constant mixed liquor suspended solids (MLSS) concentration in the aerobic reactor. The removal of micro-pollutants from landfill leachate along the treatment period of 300 days was monitored. The results indicated that two-stage MBRs could remove biochemical oxygen demand (BOD), chemical oxygen demand (COD) and NH4+ by 97, 87 and 91% at steady operating condition. Meanwhile organic micro-pollutant removals were 50–76%. The removal efficiencies varied according to the hydrophobic characteristic of compounds but they were improved during long-term MBR operation without sludge discharge.

scholarly journals Characterization of Dissolved Organic Matter in Landfill Leachate during Two–Stage Membrane Bioreactor Treatment

2017 ◽  
Vol 15 (1) ◽  
Author(s):  
S. Sanguanpak ◽  
C. Chiemchaisri ◽  
W. Chiemchaisri ◽  
K. Yamamoto
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Landfill Leachate ◽  
Membrane Bioreactor ◽  
Disposal Site ◽  
Solid Waste Disposal ◽  
High Concentration ◽  
Absorption Bands ◽  
Two Stage

Landfill leachate is a complex wastewater containing high concentration of dissolved organic matter (DOM). In this study, DOM in raw leachate and treated water from pilot–scale two–stage membrane bioreactor (MBR) installed at solid waste disposal site were investigated by using fractionation method, fluorescence excitation–emission matrix spectroscopy (FEEM) and fourier transform infrared (FTIR). The fractionation results showed hydrophilic (Hyl) compound was the most abundant fraction in DOM of raw leachate, whereas the dominant fraction of DOM in mixed liquor inside MBR and its effluent was fulvic acid (FA). The fluorescent peaks of protein-like, humic and fulvic–like substances were detected in influent DOM, while the fluorescence peaks of MBR and effluent DOM were humic and fulvic-like substances. From the FTIR results, absorption bands that could be related to humic acid (HA) and FA were found in both MBR and effluent DOM. The characterization of DOM indicated that the most of Hyl and protein–like substances could be significantly removed by microbial process in MBR. Furthermore, a part of humic substance (HA and FA) could be eliminated by microbial and filtration processes.

Stripping/flocculation/membrane bioreactor/reverse osmosis treatment of municipal landfill leachate

2009 ◽  
Vol 171 (1-3) ◽  
pp. 309-317 ◽  
Author(s):  
Halil Hasar ◽  
Sezahat A. Unsal ◽  
Ubeyde Ipek ◽  
Serdar Karatas ◽  
Ozer Cınar ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Landfill Leachate ◽  
Membrane Bioreactor ◽  
Municipal Landfill

Treatment of municipal landfill leachate: Optimization of organic loading rate in a two-stage CSTR followed by aerobic degradation

2021 ◽  
Vol 163 ◽  
pp. 1210-1221
Author(s):  
Saeed Ghanbari Azad Pashaki ◽  
Mehdi Khojastehpour ◽  
Mohammadali Ebrahimi-Nik ◽  
Abbas Rohani
Keyword(s):  
Landfill Leachate ◽  
Loading Rate ◽  
Organic Loading Rate ◽  
Aerobic Degradation ◽  
Organic Loading ◽  
Two Stage ◽  
Municipal Landfill

Two-stage biodegradation coupled with ultrafiltration for treatment of municipal landfill leachate

2009 ◽  
Vol 87 (5) ◽  
pp. 336-342 ◽  
Author(s):  
K.W. Pi ◽  
L.X. Gao ◽  
M.X. Fan ◽  
W.Q. Gong ◽  
D.J. Wan
Keyword(s):  
Landfill Leachate ◽  
Two Stage ◽  
Municipal Landfill

Removal of organic compounds from municipal landfill leachate in a membrane bioreactor

Desalination ◽  
2006 ◽  
Vol 198 (1-3) ◽  
pp. 16-23 ◽  
Author(s):  
Michał Bodzek ◽  
Ewa Łobos-Moysa ◽  
Marlena Zamorowska
Keyword(s):  
Organic Compounds ◽  
Landfill Leachate ◽  
Membrane Bioreactor ◽  
Municipal Landfill
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