Reaction Crystallization of Struvite in a Continuous Draft Tube Magma (DTM) Crystallizer with a Jet Pump Driven by Recirculated Mother Solution

Mazieńczuk, A.; Matynia, A.; Piotrowski, Krzysztof; Wierzbowska, B.

doi:10.1016/j.proeng.2012.07.547

Cited by 2 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Increment in the pH value of the wastewater subject would decrease the formed crystal size (Hutnik et al, 2013). It will also decreases the crystal growth rate (Mazienczuk et al, 2012) and reduced its purity (Kruk et al, 2014). On the other hand, low pH was reported to have decrease the struvite precipitation (Lee et al, 2013a).…”

Section: Phmentioning

confidence: 99%

Scale Deposits From Palm Oil Mill Effluent (Pome) Treatment and Various Other Industries: A Developmental Review

Muzzammil¹

2018

JOPR

View full text Add to dashboard Cite

The palm oil mill effluent (POME) treatment process is exposed to the formation of crystal-like deposits where their accumulation could create a significant threat to achieving an efficient POME treatment. This article reviewed similar occurrences in other industries, discussed factors influencing the crystal formation and suggested possible solutions to be applied in the oil palm industry. From the review, it was found that crystal deposits have always been a nuisance and sometimes a significant threat to similar industries such as industrial, agricultural and municipal wastewater treatment facilities. Other industries where there is a handling process of certain type of fluids such as heat transfer and oil reservoir drilling fluids also faces similar problems. The article also presented the spectrum of methods for mitigation and removal of the crystal formed. For many cases, nutrient recovery through struvite precipitation has become attractive as it not only reduces crystal growth but at the same time prevents excessive nutrients discharge to the environment. Further exploitation of the recovered struvite as a fertiliser source could possibly generate additional income to the oil palm industry.

show abstract

Section: Phmentioning

confidence: 99%

Scale Deposits From Palm Oil Mill Effluent (Pome) Treatment and Various Other Industries: A Developmental Review

Muzzammil¹

2018

JOPR

View full text Add to dashboard Cite

show abstract

“…Koralewska incorporated nucleation and growth mechanisms and used a highly controlled procedure, giving reasonable confidence to the range of particle growth rates they measured, although the growth rate dispersion model they applied is theoretically unlikely, as discussed earlier (Koralewska et al 2009). Work by Mazienczuk and Kozic regressed nucleation and growth parameters using the PSD only (Mazienczuk et al 2012;Kozik et al 2014). While their work was experimentally sound, the model proposed should be applied cautiously as it did not match the data in lower particle size ranges, indicating that the nucleation and growth model alone could not accurately represent the entire dataset.…”

Section: Struvite Growth Rate Model Comparisonmentioning

confidence: 99%

A comparison of struvite precipitation thermodynamics and kinetics modelling techniques

Marin

Burns

Schneider

2023

Water Science and Technology

View full text Add to dashboard Cite

Solution thermodynamics and kinetic modelling applied to struvite crystallisation–precipitation were reviewed from diverse references to determine proximity between predicted and cited experimental measurements. These simulations show the expected variability range of struvite saturation calculation when only limited solution compositional information is given, showing acceptable agreement between predicted and experimental struvite mass. This work also compares results from struvite crystallisation kinetic studies on liquid phase species depletion, crystallisation induction time, primary nucleation, secondary nucleation, crystal growth, and crystal aggregation. Large inconsistencies between reported kinetics were observed in many scenarios. Variations in species depletion models highlighted that they are only suitably applied to the specific system from which they were regressed. Spontaneous primary nucleation was predicted to occur in the range of SI = 0.237–0.8. Predicted primary nucleation rates vary over at least 10 orders of magnitude (depending on supersaturation) because of uncertainties in interfacial tension and maximum achievable nucleation rate. Secondary nucleation rates are more agreeable, varying over approximately two orders of magnitude. Growth rates varied over five orders of magnitude due to variations in experimental conditions. Aggregation rates are not thoroughly examined enough to make any inferences.

show abstract

Reaction Crystallization of Struvite in a Continuous Draft Tube Magma (DTM) Crystallizer with a Jet Pump Driven by Recirculated Mother Solution

Cited by 2 publications

References 7 publications

Scale Deposits From Palm Oil Mill Effluent (Pome) Treatment and Various Other Industries: A Developmental Review

Scale Deposits From Palm Oil Mill Effluent (Pome) Treatment and Various Other Industries: A Developmental Review

A comparison of struvite precipitation thermodynamics and kinetics modelling techniques

Contact Info

Product

Resources

About