Abstract
The purification vessel was developed in order to remove suspended solids from seawater. The fiber media and granular materials are used this vessel. The purification experiment was performed for about 30 days in Amagasaki port and Amagasaki canal in the autumn. The port and canal are located in the head of Osaka bay. The experimental results showed that suspended solids were completely removed by the filters. For the Amagasaki port and the Amagasaki canal, the removal rates of SS were 48% and 58%, respectively. Those for COD were 30% and 36%, respectively. The value of COD was positively correlated with the value of SS. Inpartic, the higher correlation between COD and SS was found in the experimental results in the Amagasaki canal. The removed materials contained the organic materials. Therefore, it is assumed that the organic matter can be removed with the treatment by the purification vessel.
