Evoqua Water Technologies Pte. Ltd.

Hao Dang

Michael J Shaw

George Y Gu

Wenxin Du

Simon Paul Dukes

Justin Wayne Higgs

Methods for processing pretreated phosphogypsum wastewater are disclosed. The pretreated wastewater may be subjected to electrodialysis involving at least one monovalent cation selective membrane. Further downstream membrane treatment may be applied. Upstream precipitation and air-stripping techniques may optionally also be employed. Related systems are also disclosed.

Methods and systems for treating phosphogypsum-containing water

Methods for treating phosphogypsum-containing water are disclosed. The water may be treated so as to promote precipitation of one or more target constituents and to facilitate downstream membrane treatment. A coagulant may be added to promote phosphate recovery. Ammonia may optionally be removed. Related systems are also disclosed.

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Dracut, MA, United States of America

Hao Dang