| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a soil-groundwater purging composition enabling a formation of an anaerobic atmosphere in a short time to a wide-ranging processing target, and enabling a promotion of an effective decomposition of contaminants with no stay or no reserve of an intermediate substance, and a purifying method of soil-groundwater. <P>SOLUTION: The composition promotes a microbe decomposition of an organohalogen compound contained in the contaminated soil-groundwater. The composition contains a sugar group of trisaccharide or more comprising at least anyone of a starch decomposition product, oligosaccharide, and sugar alcohol, a protein decomposition product comprising at least anyone of an amino acid and peptide, and preferably, an aliphatic carboxylic acid (containing salts), and is characterized in that preferably the content of the sugar group of trisaccharide or more is to be 60% or more in terms of a solid weight to the solid weight of all the sugar groups. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
