Methods for processing pretreated phosphogypsum wastewater are disclosed. Precipitation of select constituents may be promoted to control a hardness level of the pretreated wastewater. Ammonia may then be removed from the process stream via reverse osmosis. A membrane contactor and/or polishing unit(s) may optionally be used. Related systems are also disclosed.
Patent
BriefPatent brief
Problem
How can microplastics and similar contaminants be removed from wastewater?
Novelty
Precipitation of select constituents may be promoted to control a hardness level of the pretreated wastewater.
Uses
Patent review
Assignee
Evoqua Water Technologies LLC
Published
Mar 10, 2026
Inventors
Wenxin Du, Hao Dang, Justin Wayne Higgs
Domain
Environmental systems
Problem
How can microplastics and similar contaminants be removed from wastewater?
Solution
Methods for processing pretreated phosphogypsum wastewater are disclosed.
Key novelty
Precipitation of select constituents may be promoted to control a hardness level of the pretreated wastewater.
Applications
Relevant search intents