Local Structure and Crystallization Transformation of Hydrous Ferric Arsenate in Acidic H2O–Fe(III)–As(V)–SO42– Systems: Implications for Acid Mine Drainage and Arsenic Geochemical Cycling

Hydrous ferric arsenate (HFA) is a common thermodynamically metastable phase in acid mine drainage (AMD). However, little is known regarding the structural forms and transformation mechanism of HFA. We investigated the local atomic structures and the crystallization transformation of HFA at various...

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Veröffentlicht in:	Environmental science & technology 2024-04, Vol.58 (16), p.7176-7185
Hauptverfasser:	Ma, Xu, Yuan, Zidan, Lin, Jinru, Cui, Yubo, Wang, Shaofeng, Pan, Yuanming, Chernikov, Roman, Cheung, Leo Ka Long, Deevsalar, Reza, Jia, Yongfeng
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption Acid mine drainage Arsenates Arsenic Atomic structure Crystallization Cycles electron microscopy Fine structure Geochemistry Iron Metastable phases Mine drainage Protonation Ripening Scanning electron microscopy Structural forms technology thermodynamics Ultrastructure X ray absorption X-ray absorption spectroscopy
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