ArticleFrontiers in chemistry2026
Phosphorus recovery from high-COD and strongly acidic wastewater by vivianite crystallization: feasibility and optimization of operating conditions.
Article in Frontiers in chemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Simultaneous phosphorus recovery as vivianite crystallization and hydrogen generation from acidified oil wastewater by Fe-C micro-electrolysis.Frontiers in chemistry · 2026Article
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7 authors.
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Abstract
Acidified oil wastewater contains high concentrations of phosphorus and organic pollutants, which not only pose environmental risks but also contain recoverable phosphorus resources. However, its complex matrix (high COD and acidic environment) poses great challenges to phosphorus recovery technologies. This study successfully developed a new phosphorus recovery strategy adapted to the wastewater characteristics and optimized key operating parameters using response surface methodology. Key parameters including pH, Fe:P molar ratio, reaction time and residence time were investigated, clarifying their regulatory roles in the complex wastewater system. Under the optimal process conditions (pH = 7.77, Fe:P molar ratio = 2.24, reaction time = 2.23 h, and hydraulic residence time = 4.16 h), the phosphorus recovery rate reached 93.54%, and the vivianite crystallization rate reached 91.39%. Furthermore, a process parameter prediction model (the verification results and the model prediction was less than 2.1%) was established to produce vivianite crystallization with large particle size (d
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