河川感潮域におけるヤマトシジミ生息基盤への石炭灰造粒物の適用性評価 [in Japanese] EVALUATION OF GRANULATED COALASH COVERING METHOD UTILIZED TO HABITAT BASIS OF CORBICULA JAPONICA IN ESTUARY [in Japanese]
Access this Article
Search this Article
Recently, sludge purification of organic matter enriched river bottom using granulated coal ash (GCA) have been used in Hiroshima Otagawa delta areas. It has been proved that GCA can absorb the compounds of phosphorus, nitrogen and sulfur. By previous study, the material properties of GCA for biological affinity have been clarified. On the other hands, a characteristic as the inhabiting basis of bivalves is not sufficiently clarified. The purpose of this study is to evaluate GCA covering method utilized to habitat basis of Corbicula japonica. Laboratory experiments and field investigation were carried out to compare GCA (covering material) for habitat basis with control materials (e.g. natural sand, natural stone and organic mud) about a sneaking act by Corbicula japonica. From our findings, it can be concluded that GCA can be used as a covering material to improve biological environment and utilized to habitat basis of Corbicula japonica in organic matter enriched river bottom.
- Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)
Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 72(4), I_1021-I_1026, 2016
Japan Society of Civil Engineers