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  1. No Access

    Article

    Carbon dioxide and methane gas permeations in thermally annealed and chemically cross-linked commercial polyimide hollow fiber membrane

    Two types of modifications were performed on a commercial polyimide (PI) hollow fiber membrane for carbon dioxide (CO2) and methane (CH4) gas permeations. Thermal annealing was conducted between 50- and 200 °C wh...

    Grace M. Nisola, Arnel B. Beltran, Viava Jane L. Africa… in Fibers and Polymers (2011)

  2. No Access

    Article

    Hydrogen sulfide degradation characteristics of Bordetella sp. Sulf-8 in a biotrickling filter

    The applicability of Bordetella sp. Sulf-8 to degrade Hydrogen Sulfide (H2S) gas in a biotrickling system was investigated. The isolate is a heterotrophic gram-negative, catalase- and oxidase-positive, rod-shaped...

    Grace M. Nisola, Enkhdul Tuuguu… in Bioprocess and Biosystems Engineering (2010)

  3. No Access

    Article

    Bioaugmented sulfur-oxidizing denitrification system with Alcaligenes defragrans B21 for high nitrate containing wastewater treatment

    The performance of enriched sludge augmented with the B21 strain of Alcaligenes defragrans was compared with that of enriched sludge, as well as with pure Alcaligenes defragrans B21, in the context of a sulfur-ox...

    Angel Flores III, Grace M. Nisola, Eulsaeng Cho… in Bioprocess and Biosystems Engineering (2007)