Cited by 47Phosphorus and nutrient managementCrystallization and Solubility StudiesWastewater Treatment and Reuse

An efficient approach for phosphorus recovery from wastewater using series-coupled air-agitated crystallization reactors

Dai, Hongliang, Lu, Xiwu, Peng, Yonghong, Zou, Haiming, Shi, Jing·2016·Chemosphere

Abstract

Homogeneous nucleation of hydroxyapatite (HAP) crystallization in high levels of supersaturation solution has a negative effect on phosphorus recovery efficiency because of the poor settleability of the generated HAP microcrystalline. In this study, a new high-performance approach for phosphorus recovery from anaerobic supernatant using three series-coupled air-agitated crystallization reactors was developed and characterized. During 30-day operation, the proposed process showed a high recovery efficiency (∼95.82%) and low microcrystalline ratio (∼3.11%). Particle size analysis showed that the microcrystalline size was successively increased (from 5.81 to 26.32 μm) with the sequence of series-coupled reactors, confirming the conjectural mechanism that a multistage-induced crystallization system provided an appropriate condition for the growth, aggregation, and precipitation of crystallized products. Furthermore, the new process showed a broad spectrum of handling ability for different concentrations of phosphorus-containing solution in the range of 5-350 mg L-1, and the obtained results of phosphorus conversion ratio and recovery efficiency were more than 92% and 80%, respectively. Overall, these results showed that the new process exhibited an excellent ability of efficient phosphorus recovery as well as wide application scope, and might be used as an effective approach for phosphorus removal and recovery from wastewater.

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Crossref · 10.1016/j.chemosphere.2016.09.001

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Authors
Dai, H., Lu, X., Peng, Y., Zou, H., & Shi, J.
Affiliations
Southeast University (CN)
Corresponding author
Lu, Xiwu
Venue
Chemosphere
Publisher
Elsevier BV
Published
2016-12
Volume
165
Pages
211-220
ISSN
0045-6535 (ISSN-L)
OpenAlex
W2520720052
Cited by
47
References
44
Citations by year
2025: 5 · 2024: 5 · 2023: 7 · 2022: 5 · 2021: 1 · 2020: 5 · 2019: 7 · 2018: 7 · 2017: 5
FWCI
7.68
Type
journal article
Language
en
Open access
closed
Locations
  • Chemosphere (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Major Science and Technology Project of Water Pollution Control and Management in China (2012ZX07101_005)
  • National Natural Science Foundation of China (51078074)
  • Research Innovation Program for College Graduates of Jiangsu Province (KYLX15_0073)
Topics
  • Physical Sciences › Environmental Science › Waste Management and Disposal › Phosphorus and nutrient management
  • Physical Sciences › Materials Science › Materials Chemistry › Crystallization and Solubility Studies
  • Physical Sciences › Environmental Science › Waste Management and Disposal › Wastewater Treatment and Reuse
Keywords
phosphorus recovery, hydroxyapatite crystallization, homogeneous nucleation, supersaturation, wastewater treatment, phosphorus removal
MeSH terms
Crystallization, Phosphates, Phosphorus, Magnesium Compounds, Wastewater

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