TITLE

FTIR Analysis on Organic Sulfur Distribution: Aliphatic Mercaptans in Lignite, Prior and after Multistage Artificial Biotreatment Process

AUTHOR(S)
Handayani, Ismi; Paisal, Yustin; Chaerun, Siti Khodijah; Syoni Soepriyanto, Syoni
PUB. DATE
May 2015
SOURCE
Advanced Materials Research;2015, Vol. 1130, p503
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Aliphatic mercaptans (R-SH) are organic sulfur containing functional groups in coal maceral that makes up lignite. Prior and after specific bioprocess on the lignite, namely multistage artificial biotreatment (A-Bmt), organic sulfur rich lignite sample was treated and analyzed by spectroscopic methods. To determine the qualitative change in aliphatic mercaptans on lignite maceral surface, Fourier transform infrared (FTIR) method at transmittance spectrum of 400-4000 cm-1 was used on lignite sample in the form of pellet with a KBr mixture. The results of FTIR analysis indicate significant spectrum gradations between natural samples, samples from biooxidation, and samples from column bioflotation. This can be seen in the spectrum distribution pattern of transmittance at 620-690 cm-1 and 1530-1580 cm-1, which gradually and significantly change. The results of biotreatment with the addition of bioreagent Pseudoclavibacter sp. strain SKC/XLW-1 both at biooxidation and column bioflotation stage on A-Bmt method showed that there was a significant difference on spectrum pattern compared to the results with no biotreatment. The spectrum distribution pattern resulted from FTIR analysis also showed a strong correlation with the distribution pattern of decreased levels of organic sulfur and trace elements.
ACCESSION #
111462822

 

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