title: Water environment conservation in a closed water body by high concentrated oxygen water.
abstract: In this study, the method of using high concentrated oxygen water to purify the bottom sediment was confirmed to be effective. The high concentrated oxygen dissolver was developed and the lab scale experiment was performed. High rate, high efficiency oxygen dissolver was developed, the optimum running condition of the apparatus and the method of producing high concentrated oxygen water was discussed and determined in this study. In addition, the effective prevention of phosphorus release from anaerobic bottom sediment was also studied. As a result, it is found that high concentrated oxygen water was effective for prevention of phosphorus release from anaerobic bottom sediment. On the basis of the fundamental knowledge from the laboratory-scale study, pilot scale apparatus was set up and the pilot study was carried out. It is showed that the introduction of high concentrated oxygen water did not destroy the thermocline of dam reservoir.
authors.affiliation: Graduate School of Science and Engineering, Yamaguchi University, Yamaguchi, Japan. imai@yamaguchi-u.ac.jp
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Imai
authors.forename: Ramida
authors.initials: R
authors.lastname: Watanapokasin
authors.forename: Alissara
authors.initials: A
authors.lastname: Reungsang
authors.forename: Masahiko
authors.initials: M
authors.lastname: Sekine
authors.forename: Takaya
authors.initials: T
authors.lastname: Higuchi
mesh_terms: D018504:Ecological Systems, Closed; D019015:Geologic Sediments / Q000032:analysis; D007753:Laboratories; D010100:Oxygen / Q000737:chemistry*; D010758:Phosphorus / Q000032:analysis; D010865:Pilot Projects; D012995:Solubility; D013696:Temperature; D014867:Water / Q000737:chemistry*; D018508:Water Purification
chemical_list: D014867:Water; D010758:Phosphorus; D010100:Oxygen