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Mechanism of water pollution induced by some metal complexan and its management.

Research Project

Project/Area Number 02640449
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 分析・地球化学
Research InstitutionOKAYAMA UNIVERSITY

Principal Investigator

MURAMOTO Shigeki  Okayama University, Research Institute for Bioresources, Associate Professor, 資源生物科学研究所, 助教授 (50033121)

Co-Investigator(Kenkyū-buntansha) NAKASHIMA Susumu  Okayama University Research Institute for Bioresources, Research Associate, 資源生物科学研究所, 助手 (60033122)
AOYAMA Isao  Okayama University Research Institute for Bioresources, Professor, 資源生物科学研究所, 教授 (10026239)
Project Period (FY) 1990 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1992: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1991: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1990: ¥1,000,000 (Direct Cost: ¥1,000,000)
KeywordsWater pollution and mangeent / Metal complexan / Surfactants / Metal toxicity / Meta leaching / Biodegradtion / Aquatic plant and fish / Algae / 水圏生態系 / 水質汚濁 / 環境浄化 / 微生物分解 / 人工コンプレキサン / 富栄養化
Research Abstract

Recently the eutrophication of the aquatic environment due to human activities has given rise to variety of problems of water pollution. Some kinds of water problems, such as mustry odor of drinking water, organic substances pollution in domestic area in Japan. This research was consisted of five subjects. (1)Distribution and fate of some kinds of complexans in river and lake water affecting domestic area : the changes of concentration of surfactants in river water was affected by the washing time in the 24 hours human activity cycle, and the concentration of surfactants was higher in winter seasons compared with that in summer seasons because of the bio-degradation by microorganism as well as NTA except for EDTA. (2)The effects of iron forms on the growth of four cyanobacteria were studied : Almost cyanobacteria was suppressed in the EDTA(complexing agent)-free CT medium because of no ability to utilize colloidal iron and iron oxides for its growth. (3)Microbial degradation of EDTA : The growth of organisms in the Fe^<3+>-EDTA medium were only slightly less than when cultured in the complete medium with Fe^<2+>-EDTA. Effect of another metals, Zn^<2+>, Mg^<2+>, Cu^<2+>, Ca^<2+>, Fe^<3+>, except for Fe^<2+> on the growth of psudomonus sp. was not recognized. It is suggested that efficiency of degradation increased with the repetitiveness of metal-complexan form for Fe^<2+>-EDTA <--> Fe^<3+>-EDTA, and also with glycine and IDA in the medium. (4)Effect of surfactants to the aquatic animals and plants. : the inhibition of metal toxicity and accumulation by the presence of surfactants was recognized for carp and water hyacinth. (5)Effect of complexans on the leaching metal from soil : the effect of EDTA for removing of heavy metals from metal-polluted soil was recognized. These results suggested that some kind of complexans are liable to cause water pollution problems in aqua-system.

Report

(4 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • 1990 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] S.MURAMOTO,I.AOYAMA and Athanasios Kunglos: "Fate of surface active agents in river and lake water and their effect on aquatic macrophyte." Environmental Toxicology and water Quality. 1-8 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.MURAMOTO,I.AOYAMA and Athnasios Kunglos: "Distribution of some surfactatns in river and lake water affecting domestic area." 6th International Sympo-sium Toxicity Assesment and on-line Monitoring(Berlin). 1-6 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.MURAMOTO,H.NISHIZAKI,I.AOYAMA: "The effect of several cadmium compounds in soil on the metal content of unpolished rice." Ber,ohara Inst.landw.Bio l.Okayama Univ.20. 1-9 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.MURAMOTO,H.NISHIZAKI,I.AOYAMA: "Effect of carbonate on the cadmium content of wheat after addition of large amounts of CdS to soil." Bull.Res.Inst Bioresour.Okayama Univ.1. 1-9 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.NAKASHIMA,M.YAGI: "Iron forms that influence the growth and musty odor production of selected cydrobacteria." Wat.Sci Tech.25. 207-216 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.MURAMOTO,H.NISHIZAKI,and I.AOYAMA: "Effect of calcium carbonate on the cadmium cont ent of wheat after addition of large amounts of CdS or soil." Bull.res.inst.Bioresour.Okayama Univ.1. 1-8 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.Muramoto, I.Aoyama and Athanasios Kunglos: "Fate of surface active agents in river and lake water, and their effect on aquatic macro-phyte." Environmental Toxicology and water Quality. 42. 1-8 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.Muramoto, I.Aoyama and Athnasios Kunglos: "Distribution of some surfactatns in river and lake water affecting domestic area." 6th International Symposium Toxicity Assessment and on-line Monitoring (Berlin). 1-8 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.Muramoto, H.Nishizaki, I.Aoyama: "The effect of several compounds in soil on the metal content of unpolished rice." Ber, ohara Inst.landw.Biol.Okayama Univ. 20. 1-9 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.Muramoto, H.Nishizaki, I.Aoyama: "Effect of carbonate on the cadmium content of wheat after addition of large amounts of CdS to soil." Bull.Res.Inst.Bioresour.Okayama Univ. 1. 1-9 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.Nakashima, M.Yagi: "Iron forms that influence the growth and musty odor production of selected cydrobacteria." Wat.Sci.Tech. 25. 207-216 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.Muramoto, H.Nishizaki, and I.Aoyama: "Effect of calcium carbonate on the cadmium content of wheat after addition of large amounts of CdS or soil." Bull.res.inst.Bioresour.Okayama Univ. 1. 1-8 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.Nakashima and M.Yagi: "Iron forms influencing the growth and geosmin production of Oscillatoria brevis." Jap.J.Water Treat.Biol.25. 19-25 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.Nakashima and M.Yagi: "Effect of iron forms on the growth and musty odor production of Anabena macrospora and Phormidium tenue." Jap.J.Treat.Biol. 26. 61-67 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.Muramoto,I.Aoyama and Athanasios Kunglos: "Fate of surface active agents in river and lake water and their effect on aquatic macrophyte." Environmental Toxicology and water Quality. 1-8 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] S.Muramoto, I.Aoyama and Athnasios Kunglos: "Distribution of some surfactatns in river and lake water affecting domestic area." 6th International Symposium Toxicity Assesment and on-line Monitoring(Berlin). 1-6 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] S.Muramoto,H.Nishizaki, I.Aoyama: "The effect of several cadmium compounds in soil on the metal content of unpolished rice." Ber,ohara Inst.landw.Bio I.Okayama Univ.20. 1-9 (1990)

    • Related Report
      1992 Annual Research Report
  • [Publications] S.Muramoto,H.Nishizaki, I.Aoyama: "Effect of carbonate on the cadmium content of wheat after addition of large amounts of CdS to soil." Bull.Res.Inst.Bioresour. Okayama Univ.1. 1-9 (1991)

    • Related Report
      1992 Annual Research Report
  • [Publications] S.Nakashima,M.Yagi: "Iron forms that influence the growth and musty odor production of selected cydrobacteria." Wat.Sci.Tech.25. 207-216 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] S.Muramoto,H.Nishizaki, and I.Aoyama: "Effect of calcium carbonate on the cadmium content of wheat after addition of large amounts of CdS or soil." Bull.res.inst.Bioresour. Okayama Univ.1. 1-8 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] S.Muramoto,I.Aoyama: "Variation of aninic surfactant concentration in water of estuary lake and influent rivers." J.Environ.Sci.Health. 28. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Muramoto,I.Aoyama,S.Nakashima: "Effect of some complexing agents on the change of heavy metal contents of water hyacinth treated with EDTA in salinity water." Bull.Environ.Cont.Toxicol.55. (1993)

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Muramoto,I.Aoyama: "Varationof anionicsurfactantconcentrationin water of estuarylake and influenctrivers." J.Environ.Sci.Health. 27. (1992)

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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