Two-stage anoxic/oxic combined membrane bioreactor system for landfill leachate treatment: Pollutant removal performances and microbial community

2017 ◽  
Vol 243 ◽  
pp. 738-746 ◽  
Author(s):  
Jianbo Liu ◽  
Haibo Zhang ◽  
Panyue Zhang ◽  
Yan Wu ◽  
Xiying Gou ◽  
...  
Keyword(s):  
Microbial Community ◽  
Landfill Leachate ◽  
Membrane Bioreactor ◽  
Pollutant Removal ◽  
Leachate Treatment ◽  
Two Stage ◽  
Bioreactor System

Pollutant removal, electricity generation and microbial community in an electrochemical membrane bioreactor during co-treatment of sewage and landfill leachate

2021 ◽  
pp. 106205
Author(s):  
Gabrielle Maria Fonseca Pierangeli ◽  
Rodrigo Almeria Ragio ◽  
Roseli Frederigi Benassi ◽  
Gustavo Bueno Gregoracci ◽  
Eduardo Lucas Subtil
Keyword(s):  
Microbial Community ◽  
Landfill Leachate ◽  
Electricity Generation ◽  
Membrane Bioreactor ◽  
Pollutant Removal

scholarly journals Evaluation of Bio-toxicity Removal by Two-Stage Membrane Bioreactor for Landfill Leachate Treatment

2017 ◽  
Vol 16 (1) ◽  
Author(s):  
V. Boonyaroj ◽  
C. Chiemchaisri ◽  
W. Chiemchaisri ◽  
K. Yamamoto
Keyword(s):  
Landfill Leachate ◽  
Membrane Bioreactor ◽  
Ammonia Concentration ◽  
Probit Analysis ◽  
Leachate Treatment ◽  
Two Stage ◽  
Toxicity Effect ◽  
Pollutant Concentrations ◽  
Toxicity Potential ◽  
Living Organisms

Two-stage membrane bioreactor was applied to the treatment of municipal solid waste landfill leachate. This study aimed to evaluate the toxicity of treated leachate by this system. Bio-toxicity (acute and geno-toxicity) were conducted using O. niloticus and C. carpio. The lethal concentrations (LC50) of selected species exposed to raw leachate and treated leachate were investigated. Comet assay was utilized for evaluation of geno-toxicity potential of raw and treated leachate using carried out at the 10th percentile of lethal concentration (LC10) that obtained from the acute toxicity test. The relationship between pollutant concentrations i.e., NH3, COD and mortality were analyzed on Finney’s probit analysis. The results found that ammonia was the principal pollutants causingtoxicity in landfill leachate. Nevertheless, toxicity effect between ammonia and organic concentrations was also observed. The corresponding ammonia concentration causing 50% mortality of C. carpio and O. niloticus after96 hour exposure were 2.3-2.6 and 2.2-2.5 mg/l respectively. The sensitivity test of geno-toxicity effect at the level of DNA damage show that O. niloticus was considerably more sensitive to leachate. The membrane bioreactor system helps reducing toxic organic compounds and bio-toxicity on living organisms.

Ozonation of Membrane Bioreactor Effluent for Landfill Leachate Treatment

2005 ◽  
Vol 26 (1) ◽  
pp. 65-73 ◽  
Author(s):  
A. Chaturapruek ◽  
C. Visvanathan ◽  
K.H. Ahn
Keyword(s):  
Landfill Leachate ◽  
Membrane Bioreactor ◽  
Leachate Treatment

scholarly journals Electricity generation and pollutants removal of landfill leachate by osmotic microbial fuel cells with different forward osmosis membranes

2021 ◽  
Author(s):  
Nan Jiang ◽  
Li Huang ◽  
Manhong Huang ◽  
Teng Cai ◽  
Jialing Song ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Active Layer ◽  
Landfill Leachate ◽  
Microbial Fuel Cells ◽  
Forward Osmosis ◽  
Feed Solution ◽  
Cellulose Triacetate ◽  
Ammonia Nitrogen ◽  
Pollutant Removal ◽  
Leachate Treatment

Abstract In this study, thin-film composite with embedded polyester screen, cellulose triacetate with a cast nonwoven and cellulose triacetate with embedded polyester screen (CTA-ES) were examined as the intermediate membranes in osmotic microbial fuel cells (OsMFCs). The reactors were fed with actual landfill leachate and the performance was studied in two operation modes: active layer facing draw solution and active layer facing feed solution (AL-FS). The OsMFC with CTA-ES exhibited the best energy generation (maximum power density: 0.44 W m-2) and pollutant removal efficiency (ammonia nitrogen: 70.12 ± 0.28%, total nitrogen: 74.04 ± 0.33%) in the AL-FS mode, which could be ascribed to the lowest internal resistance (236.75 ohm) and highest microbial richness. Pseudomonas was the highest proportion of microbial in OsMFCs. The results of this study has demonstrated the potential of OsMFCs for landfill leachate treatment.

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