Research Papers : Biogas Generation and Recovery Potential Within Selected Agro-Industries and Solid Waste Management Sector in Thailand

Lee, Seung Hwan; Park, Jae Chul; Brissonneau, Delphine

doi:10.4491/eer.2003.8.3.107

Environmental Engineering Research

2003

DOI: 10.4491/eer.2003.8.3.107

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Research Papers : Biogas Generation and Recovery Potential Within Selected Agro-Industries and Solid Waste Management Sector in Thailand

Seung Hwan Lee¹,

Jae Chul Park²,

Delphine Brissonneau³

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Cited by 4 publications

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Media configuration and recirculation of upflow anaerobic floating filter for piggery wastewater treatment

Lee

et al. 2007

Korean J. Chem. Eng.

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An upflow anaerobic floating filter media (UAFF) reactor was applied to the treatment of synthetic and real piggery wastewater. The effect of media configuration and internal recirculation on the system performance was studied. In the first experiment, three-UAFF reactors filled with different media, i.e., polypropylene beads, sponge cubes and coconut fiber were continuously fed with synthetic wastewater at upflow velocity of 0.04 m h 1 . The COD removal efficiency in the reactor filled with sponge cubes was highest at 90%, whereas the others filled with polypropylene beads and coconut fibers with lower specific surface area were about 80%. In the second experiment, three-UAFF reactors with sponge were applied to treat real piggery wastewater. COD removal efficiencies were found to be about 80% and methane production rate of 0.26 l l r 1 d 1 . The system performance could be slightly improved by 10% when applying internal recirculation. A sludge blanket (60-70% of total biomass) plays an important role in the system when applied to the treatment of piggery wastewater containing high suspended solid concentration.

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Media configuration and recirculation of upflow anaerobic floating filter for piggery wastewater treatment

Lee

et al. 2007

Korean J. Chem. Eng.

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Application of activated carbon fiber (ACF) for arsenic removal in aqueous solution

Lee

2010

Korean J. Chem. Eng.

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The adsorption of arsenic from aqueous solution using activated carbon fiber (ACF) was investigated. Several series of experiments were conducted to investigate the effect of operating parameters such as equilibrium time, flow rate, and initial concentration that affect to the adsorption rate. Average removal efficiency was 24% for the initial arsenic concentration of 10 mg/L to 17 mg/L. Breakthrough point in ACF unit reached at 5 hours of the experimental operation for aqueous solution containing arsenic. Adsorption capacity of the filter was found to be 0.18 mg/mg of ACF. With the increase of flow rate there was a slight increase in the removal of arsenic. Field tests from thirty contaminated sites in Sonarang, Bangladesh have shown that the arsenic removal efficiency was only 13.0% in the single ACF unit, while it was increased upto 24.6% in two ACF units in series. Among the several fitting regression curves tested, three dimensional non-linear regressions gave over 90% fitting, while for other linear regression curves it was in the range of 5 to 92% depending upon the various operating parameters. Non-linear models described the relationships of C with C 0 and t better than the linear ones, and this model gives a good generalization of the kinetics of arsenic in ACF for the laboratory tested ranges.

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Adsorption behaviors of lead ion onto acetate modified activated carbon fiber

Shi

Yao

2011

Desalination and Water Treatment

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Research Papers : Biogas Generation and Recovery Potential Within Selected Agro-Industries and Solid Waste Management Sector in Thailand

Cited by 4 publications

References 0 publications

Media configuration and recirculation of upflow anaerobic floating filter for piggery wastewater treatment

Media configuration and recirculation of upflow anaerobic floating filter for piggery wastewater treatment

Application of activated carbon fiber (ACF) for arsenic removal in aqueous solution

Adsorption behaviors of lead ion onto acetate modified activated carbon fiber

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