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Clay Minerals and Phosphates Found in Biomats by the Side of the Well
Journal of the Clay Science Society of Japan (in Japanese)
Vivianite (Fe3(PO4)2•E8H2O), 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 smalldoi:10.11362/jcssjnendokagaku1961.43.14 fatcat:proeppcgknfavcbcswpzmmoxju