Mining Phosphate from Wastewater: Treatment and Reuse

Mukherjee, Debjani; Ray, Rajan; Biswas, Nihar

doi:10.1007/978-3-030-27676-8_3

Cited by 7 publications

(1 citation statement)

References 46 publications

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“…The precipitation is much faster, but the product obtained in this process has an amorphous structure. Crystallization occurs more slowly, but the resulting product has a crystal structure, making it more soluble and more valuable fertilizing material [ 37 , 77–79 ]. Recovery of P as vivianite (Fe 3 (PO 4 ) 2 8H 2 O) is also considered due to its natural occurrence and predictable economic value [ 10 ].…”

Section: Phosphorus Recovery Technologies and Trends From 10 Years Pe...mentioning

confidence: 99%

Phosphorus recovery from wastewater and bio-based waste: an overview

et al. 2022

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Phosphorus is one of the most important macronutrients needed for the growth of plants. The fertilizer production market uses 80% of natural, non-renewable phosphorus resources in the form of phosphate rock. The depletion of those deposits forces a search for other alternatives, including biological waste. This review aims to indicate the most important ways to recover phosphorus from biowaste, with particular emphasis on wastewater, sewage sludge, manure, slaughter or food waste. A comparison of utilized methods and directions for future research based on the latest research is presented. Combining biological, chemical, and physical methods with thermal treatment appears to be the most effective way for the treatment of wastewater sludge in terms of phosphorus recovery. Hydrothermal, thermochemical, and adsorption on thermally treated adsorbents are characterized by a high phosphorus recovery rate (over 95%). For animal by-products and other biological waste, chemical methods seems to be the most optimal solution with a recovery rate over 96%. Due to its large volume and relatively low phosphorus content, wastewater is a resource that requires additional treatment to recover the highest possible amount of phosphorus. Pretreatment of wastewater with combined methods seems to be a possible way to improve phosphorus recovery. A compressive evaluation of combined methods is crucial for future research in this area.

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Section: Phosphorus Recovery Technologies and Trends From 10 Years Pe...mentioning

confidence: 99%