井戸の周囲に形成したバイオマット中の粘土鉱物とリン酸塩鉱物

• イスラム. ABM. ラフィクル

• 白木, 康一

• 宮田, 浩志郎

• 小路, 奈々絵

• 藤沢, 亜希子

• 田崎, 和江

書誌事項

タイトル別名

• イド ノ シュウイ ニ ケイセイ シタ バイオマット チュウ ノ ネンド コウブツ ト リンサンエン コウブツ
• Minerals and Phosphates Found in Biomats by the Side of the Well

抄録

Vivianite (Fe3 (PO4) 2·8H2O), an iron phosphate mineral has been identified in biomats produced around As polluted tubewell, which is used for drinking water in Hazigonj, Chandpur, Bangladesh. The As polluted groundwater and biomats (brown, green and gray) were analyzed by ED-XRF, XRD and optical microscopy, complimented with SEM-EDX. The biomats are composed mainly of metabolically active microorganisms such as coccus, bacillus and filamentous types of bacteria and algal filaments. A small amount of As accumulation in biomats is evidenced by SEM-EDX. Furthermore, X-ray powder diffraction patterns revealed that the formation of vivianite in different colored biomats (brown, green, brown and gray), which is a secondary mineral composed mainly of P and Fe, in association with quartz, feldspars, illite, chlorite and cordierite. Vivianite possibly contains a small amount of As by isomorphic substitution for P, resulting solid solution of symplesite. The microorganisms may play an important role in mineralization of iron phosphates.

収録刊行物

• 粘土科学 = Journal of the Clay Science Society of Japan (in Japanese)

  粘土科学 = Journal of the Clay Science Society of Japan (in Japanese) 43 (1), 14-22, 2003-08-28

  日本粘土学会 = The Clay Science Society of Japan

キーワード

• Biomats
• microorganisms
• vivianite
• symplesite
• As-polluted groundwater

詳細情報

• CRID: 1050845760872477056
• NII論文ID: 120005333996
• NII論文ID: 110003711414
• NII書誌ID: AA1155672X
• ISSN: 04706455
• NDL書誌ID: 6690490
• Web Site: http://hdl.handle.net/2297/35719
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6690490
• 本文言語コード: ja
• 資料種別: journal article
• データソース種別:
  • IRDB
  • NDL
  • CiNii Articles