Phosphorus recovery by struvite precipitation: a review of the impact of calcium on struvite quality

Precipitation of phosphorus (P) as a struvite product from wastewater and local magnesium (Mg) sources is considered as a high economical prudent venture, as it has shown to bring down the cost of producing the product. However, there is a significant concentration of calcium (Ca) in these Mg and mo...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Isaac Enyemadze, Francis W. Y. Momade, Sampson Oduro-Kwarteng, Helen Essandoh
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	calcium magnesium sources precipitation quality struvite Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/ab7d16a41c4844fabb081a1bd9176a34
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:ab7d16a41c4844fabb081a1bd9176a34
record_format	dspace
spelling	oai:doaj.org-article:ab7d16a41c4844fabb081a1bd9176a342021-11-05T19:40:26ZPhosphorus recovery by struvite precipitation: a review of the impact of calcium on struvite quality2043-90832408-936210.2166/washdev.2021.078https://doaj.org/article/ab7d16a41c4844fabb081a1bd9176a342021-09-01T00:00:00Zhttp://washdev.iwaponline.com/content/11/5/706https://doaj.org/toc/2043-9083https://doaj.org/toc/2408-9362Precipitation of phosphorus (P) as a struvite product from wastewater and local magnesium (Mg) sources is considered as a high economical prudent venture, as it has shown to bring down the cost of producing the product. However, there is a significant concentration of calcium (Ca) in these Mg and most wastewater sources. The presence of Ca in wastewater and Mg sources during struvite precipitation has been shown to negatively affect the quality of the struvite produced. The low struvite quality greatly impedes its use as a fertiliser given the economic value of the product as an alternative P fertiliser. This review paper provides an understanding of how the presence of Ca affects the purity, crystal size, and morphology of the struvite. Different methods that have been used to mitigate the effect of Ca on struvite quality have been reviewed. The factors that affect the recovery of P and the percentage recoveries of P by different Mg sources have also been reviewed. This paper serves as a basis for further research where the possibility of removing Ca from wastewater and Mg sources is explored. When Ca is removed before struvite precipitation is carried out, the quality of the product will be greatly improved. HIGHLIGHTS Trend analysis of impact of Ca on struvite quality has been done.; All methods for the mitigation of the negative impact of Ca have been reviewed.; Nutrient removal efficiencies of Mg sources have been compared.; Molar ratios that affect struvite quality have been identified.; Research gap for improving struvite quality has been identified.;Isaac EnyemadzeFrancis W. Y. MomadeSampson Oduro-KwartengHelen EssandohIWA Publishingarticlecalciummagnesium sourcesprecipitationqualitystruviteEnvironmental technology. Sanitary engineeringTD1-1066ENJournal of Water, Sanitation and Hygiene for Development, Vol 11, Iss 5, Pp 706-718 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	calcium magnesium sources precipitation quality struvite Environmental technology. Sanitary engineering TD1-1066
spellingShingle	calcium magnesium sources precipitation quality struvite Environmental technology. Sanitary engineering TD1-1066 Isaac Enyemadze Francis W. Y. Momade Sampson Oduro-Kwarteng Helen Essandoh Phosphorus recovery by struvite precipitation: a review of the impact of calcium on struvite quality
description	Precipitation of phosphorus (P) as a struvite product from wastewater and local magnesium (Mg) sources is considered as a high economical prudent venture, as it has shown to bring down the cost of producing the product. However, there is a significant concentration of calcium (Ca) in these Mg and most wastewater sources. The presence of Ca in wastewater and Mg sources during struvite precipitation has been shown to negatively affect the quality of the struvite produced. The low struvite quality greatly impedes its use as a fertiliser given the economic value of the product as an alternative P fertiliser. This review paper provides an understanding of how the presence of Ca affects the purity, crystal size, and morphology of the struvite. Different methods that have been used to mitigate the effect of Ca on struvite quality have been reviewed. The factors that affect the recovery of P and the percentage recoveries of P by different Mg sources have also been reviewed. This paper serves as a basis for further research where the possibility of removing Ca from wastewater and Mg sources is explored. When Ca is removed before struvite precipitation is carried out, the quality of the product will be greatly improved. HIGHLIGHTS Trend analysis of impact of Ca on struvite quality has been done.; All methods for the mitigation of the negative impact of Ca have been reviewed.; Nutrient removal efficiencies of Mg sources have been compared.; Molar ratios that affect struvite quality have been identified.; Research gap for improving struvite quality has been identified.;
format	article
author	Isaac Enyemadze Francis W. Y. Momade Sampson Oduro-Kwarteng Helen Essandoh
author_facet	Isaac Enyemadze Francis W. Y. Momade Sampson Oduro-Kwarteng Helen Essandoh
author_sort	Isaac Enyemadze
title	Phosphorus recovery by struvite precipitation: a review of the impact of calcium on struvite quality
title_short	Phosphorus recovery by struvite precipitation: a review of the impact of calcium on struvite quality
title_full	Phosphorus recovery by struvite precipitation: a review of the impact of calcium on struvite quality
title_fullStr	Phosphorus recovery by struvite precipitation: a review of the impact of calcium on struvite quality
title_full_unstemmed	Phosphorus recovery by struvite precipitation: a review of the impact of calcium on struvite quality
title_sort	phosphorus recovery by struvite precipitation: a review of the impact of calcium on struvite quality
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/ab7d16a41c4844fabb081a1bd9176a34
work_keys_str_mv	AT isaacenyemadze phosphorusrecoverybystruviteprecipitationareviewoftheimpactofcalciumonstruvitequality AT franciswymomade phosphorusrecoverybystruviteprecipitationareviewoftheimpactofcalciumonstruvitequality AT sampsonodurokwarteng phosphorusrecoverybystruviteprecipitationareviewoftheimpactofcalciumonstruvitequality AT helenessandoh phosphorusrecoverybystruviteprecipitationareviewoftheimpactofcalciumonstruvitequality
_version_	1718444058042433536

Phosphorus recovery by struvite precipitation: a review of the impact of calcium on struvite quality

Ejemplares similares