2014 Volume 70 Issue 2 Pages I_1086-I_1091
Cylindrical mesh substrata filled with waste shells have been demonstrated to promote suitable habitat of diverse small marine animals in recent studies. In this work, we divided these animals into two groups, prey and purifier (suspended feeder), throughout 31 water area data across this country, and estimated shell substrata value with different techniques, respectively. Those are, the former, to calculate amount of circulated carbon through food chain, and the latter, to quantify TOC remove from marine water with filter-feeding. As a result, organic carbon was estimated to remove 10 to 30 kg·m-3·yr-1, and if to convert in COD, equivalent to 65 to 79 m2 tideland, and sewage treatment for 1.2 to 1.7 human unit. For expected economical worth 56, 000 to 76, 000 yen, could develop the technology to help coastal material cycle.
