yrammuS 要概98Benjaporn Suwannasilp99PrompongPienpinijthamCharacterization of Microbial Communities in Anaerobic Bioreactors in Industrial Wastewater Treatment Plants in Thailand (Project 2018)Synthesis and Applications of Morphologically Controlled Silver and Gold Micro/Nanostructures (Project 2018)71chical structure which not only minimizes the aggregation of the two materials but also improves the electrical conductivity of LDH layer. Electrochemical tests revealed that the electrical charge capacity of rGO/NiCoAl-LDH composite materials exhibit the specific capacitance of 1050 F g-1. The rGO / NiCoAl-LDH based super-capacitor was subsequently integrated with the photoelectrochemical solar cell unit to convert and instanta-neously store the sun power in form of electrical capacitance. The hybrid supercapacitor/solar cell device helps diminishing the variation in power output caused by light intensity fluctuations or the diurnal cycle.Anaerobic bioreactors show promise in the treatment of industrial organic wastewater. An understanding of the microbial communities present in anaerobic treatment systems can strongly facilitate the development of ap-proaches to control undesirable microorganisms, such as sulfate-reducing bacteria (SRB), which can lower the quality and quantity of biogas. In this study, overall microbial communities present in anaerobic bioreactors from seven industrial wastewater treatment plants (including food, pulp and paper industries) were investi-gated using 16S rRNA gene amplicon sequencing (MiSeq, Illumina). The dominant methanogens identified in the anaerobic bioreactors treating industrial wastewater were Methanobacterium and Methanosaeta; Methano-spirillum was a predominant methanogen in the anaerobic sludge digester. SRB communities were further in-vestigated using dsrB gene clone libraries. The results indicated that the presence of SRB, such as uncultured Desulfobulbus sp., Syntrophobacter fumaroxidans, Syntrophorhabdus sp. PtaB.Bin027, and Desulfovibrio fructosivarans JJ. The results of this study demonstrate the suitability of using next-generation sequencing and clone libraries for microbial community analysis of industrial treatment processes. Such information may fa-cilitate the development of SRB-controlling strategies to improve the efficiency of wastewater treatment.This is the first time to present 3D complex hollow Au microstructures (HL-AuMSs) fabricated via 3D struc-ture-preserving galvanic replacement approach. 3D nanoporous Ag microstructures (np-AgMSs) are employed as templates, which are galvanically replaced by Au3+ under extremely high Cl- environments. During this galvanic replacement process, insoluble AgCl species, which is a surface blocking, is transformed under ex-tremely high Cl- environments into water soluble AgCl2- complex, which is easily liberated from a Ag surface. Therefore, chloride ion is the key parameter in 3D morphological preservation of these templates. The prefer-ential galvanic replacement is observed at the tips of np-AgMSs templates due to high charge density. The wall thickness of HL-AuMSs can be easily controlled by varying the mole ratio of Au3+:Ag. This 3D structure-preserving galvanic replacement is not only applied for various morphologies of Ag templates, but also applied for other precious metals with excellent template morphology retention. Moreover, due to this stabilizer-free protocol, the fabricated HL-AuMSs show the efficient catalytic activity for the reduction of p-nitrophenol by NaBH4 within 10 minutes for 6 cycles.Rep. Grant. Res., Asahi Glass Foundation (2019)
元のページ ../index.html#75