Phosphorus Recovery from Acidified Oil Wastewater via Vivianite Crystallization

93.54% phosphorus recovery was achieved under optimal conditions (pH 7.77, Fe:P ratio 2.24) in a study on treating high-COD acidic wastewater. The research, authored by Kai Cui and last updated in May 2026, developed a parameter prediction model and produced vivianite crystals with a median particle size of 113.4 μm. This work provides a technical path for resource recovery from complex industrial wastewater.

Use Cases

• Optimizing vivianite crystallization process parameters based on the study's investigation of pH, Fe:P ratio, reaction time, and residence time.
• Modeling phosphorus recovery efficiency in acidic, high-COD wastewater systems based on the established prediction model.
• Analyzing the relationship between operating conditions and vivianite crystal morphology and size based on the reported d50 and uniform morphology results.

Strengths

• Specific, high-performance results are reported, including a 93.54% phosphorus recovery rate and a 91.39% vivianite crystallization rate.
• A process parameter prediction model was established with a reported error of less than 2.1%.
• The dataset is openly shared under a CC-BY-4.0 license, facilitating reuse.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The primary file format is DOCX (202.6 KB), which is a text document rather than a structured data table.

Provenance

Source

figshare, authored by Kai Cui.

Collection Method

Experimental study using response surface methodology to optimize operating parameters.

Time Range

The study period is not specified.

Freshness

Last updated 2026-05-04 15:20:18; freshness should be verified.

Geography

The geographic scope of the wastewater source is not specified.