1986 Fiscal Year Final Research Report Summary

Water Prification Using Aquatic Macrophyto and Its Utilization System

Research Project

Project/Area Number	59850095
Research Category	Grant-in-Aid for Developmental Scientific Research
Allocation Type	Single-year Grants
Research Field	都市工学・衛生工学
Research Institution	Institute for Agricultural and Biological Science, Okayama University
Principal Investigator	YAGI Masakazu Okayama University Professor, 農業生物研究所, 教授 (30157961)
Co-Investigator(Kenkyū-buntansha)	UCHIDA Senji Okayama University Professor, 農学部, 教授 (80032986) MURAMOTO Shigeki Okayama University Research Associate, 農業生物研究所, 助手 (50033121) AOYAMA Isao Okayama University Associate Professor, 農業生物研究所, 助教授 (10026239)
Project Period (FY)	1984 – 1986
Keywords	Water hyacinth / Water purification / Relative growth rate / Harvest management / Absorption of Nutrients / 飼料利用
Research Abstract	The objects of this projects are to know the water purification capacity, to get a design guidelines for water pufification using a macrophyto, water Hyacinth (Eichhornia crasipes (Mart) Solms) and to investigate the utilization of water hyacinth to animal foods. In order to achive the objects mentioned above, the following subjects are included: (1) Effects of nutrients concentration in water on the growth of water hyacinth (2) Cralification of the relationship between the growth rate and the cultivation dencity of water hyacinth (3) Effects of harvesting management of water hyacinth on water purification capacity (4) The relationahip between the accumulation of heavy metals to water hyacinth and the inhibition of the growth Water hyacinths were cultivated using the natural water-way for irrigation water and the artificial channel setted in a green house for conducting the above subjects. (5) Utilization of water hyacinth to animal foods water hyacinth cultivated in the natural water-way were used for this study.