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Nutrient recovery from piggery effluents

Md Imtiaj Ali ; School of Engineering, James Cook University, Townsville, AUSTRALIA
Philip A. Schneider ; School of Engineering, James Cook University, Townsville, AUSTRALIA
Neale Hudson ; Intensive Livestock Systems Unit, Toowoomba, AUSTRALIA

Puni tekst: engleski pdf 213 Kb


str. 71-76

preuzimanja: 15



The present study aims to evaluate struvite precipitation potential, using the Visual MINTEQ modelling package. A solution speciation model of struvite precipitation in different phases has been developed. This model indicates that across a wide range of pH (6-14) various other crystals are formed along with struvite, whereas struvite formation is dominant in the pH range of 7.75-9.27. Solution speciation modelling indicates that a Magnesium Ion Selective Electrode can be used to infer struvite supersaturation, enabling better modelling and control of crystal growth kinetics. A brief thermodynamic investigation of the piggery wastewater collection pond will be performed using this model.

Ključne riječi

struvite, Visual MINTEQ, ion selective electrode, supersaturation, solid phases

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Posjeta: 42 *