DEPOSITION CHARACTERISTICS OF FATTY ACIDS FLOWING INTO RIVERSIDE TIDAL FLATS COVERING WITH GRANULATED COAL ASH

Abstract

 Sediment quality of riverbank tidal flats was investigated before and after the covering of granulated coal ash (GCA). This study focused on the formation of recalcitrant organic carbon by GCA, and n-hexane extraction, fatty acid analysis, and combustion tests were carried out. The results showed that extraction of more fatty acids than oils and fats in the GCA layer, suggesting the polymerization of fatty acids by forming complexes with cations dissolved from GCA. In conclusion, GCA promoted the formation of recalcitrant organic carbon and production of organic matter by biological activities. Therefore, tidal flats using GCA create an environment that polymerization of fatty acids produced by animals by making metal complexes.