Phosphate Recovery from Swine Wastewater by a Struvite Precipitation Electrolyzer.

ABSTRACT: Struvite precipitation electrolyzers are interesting environmental electrochemical reactors with potential applications for efficient phosphate recovery from wastewater, such as swine wastewater. In this paper, effects of phosphate concentration and pH on the struvite precipitation reaction rate were investigated. When phosphate concentration decreased from 100 to 20 mg/L, the precipitation reaction rate decreased from 396.65 mg/L·h to 70.46 mg/L·h, indicating that the reaction rate of struvite crystallization can be controlled by adjusting pH according to the change of phosphate concentration. Numerical simulation of different currents and flow rates on pH in the electrolyzer was developed and validated, and pH in the electrolyzer was dynamically measured along the distribution point of t

SUBMITTER: Wang F 

PROVIDER: S-EPMC6586645 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature