top of page

SLUDGE / BIOSOLIDS
ELECTROLYSIS

Sludge Electrolysis

Sludge Electrolysis_edited.png

OVERVIEW

Sludge Electrolysis provides a safe and sustainable solution to nutrient recovery and waste management.

  • Process utilizes relatively low-cost electrodes and energy to convert waste into valuable products 

  • No process waste is generated, as both the liquid and solid fractions are fully utilized: the liquid fraction for nutrient recovery, and the solid fraction for land application as Class A biosolids

Sludge Electrolysis Fundamentals

Sludge Electrolysis Fundamentals.png

OVERVIEW

Nickel Behavior is studied to understand the kinetics of Ni(OH)  -NiOOH redox transition, which is essential for optimizing the electrochemical system aimed at sustainable nutrient recovery from biosolids. 

2

Phosphorus Recovery as Calcium 
Phosphate from Electrolyzed Sludge

Phosophorus Recovery as Calcium.png

OVERVIEW

  • Optimization of parameters such as reaction time and calcium-to-phosphorus (Ca/P) molar ratio to maximize phosphorus recovery from the electrolyzed sludge supernatant

  • Characterization of the recovered calcium phosphate solid (precipitate) to evaluate its potential as a slow-release phosphorus fertilizer

Volatile Fatty Acids Production Optimization 

Volatile Fatty Acids.png

OVERVIEW

  • Volatile fatty acids (VFAs) are produced by the electrolysis of biosolids in alkaline media

  • After electrolysis, the supernatant’s is treated to allow the carboxylic acids to be in their free form for characterization

©2025 by CETI-LAB.

bottom of page