Intensified Enrichment and Leaching Strategy of Phosphorus in Sewage Sludge via Species-Targeted Conversion.

Clicks: 72
ID: 281840
2025
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Emerging

Ranked #112 of 112 articles by views in Environmental science & technology

Most read Least read

Bar heights use a square-root scale.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
Wet-chemical method for extracting phosphorus (P) from sludge incineration ash suffers from great P loss in the incineration and P-leaching stages due to the multidirectional migration of diversified P species. Existing single-process optimizations are difficult to meet the diverse and often conflicting needs of the two upstream and downstream processes to recover different P species. Herein, we developed a system-oriented strategy, HyperPhos, to synergistically address multiprocess requirements. It employs a specially designed one-pot pretreatment to create a unique reaction window for the most recoverable Fe/Al-P, achieving the targeted transformation of unstable P species into homogeneous Fe/Al-orthophosphate of 85.6% in proportion. These compounds exhibited remarkable thermal stability during incineration, with volatilization loss of only 60% of conventional technical route (Conv-Tech) even at 1000 °C. Subsequently, these parts of P were completely leached out using HCO or NaOH through redox reaction and chelating displacement, with the solvent concentration and the codissolution amounts of heavy metals less than half of the mean levels in the literature. Techno-economic analysis showed that HyperPhos obtained 1.1-2.4 times more P than Conv-Tech, while the unit cost was reduced by up to 49.5%. These findings provide new opportunities to close the P-cycle in a sustainable, economical, and environmentally friendly approach.
Reference Key
jin2025intensified Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Jin, Minghao; Liu, Huan; He, Zhi; Yao, Hong
Journal Environmental science & technology
Year 2025
DOI
10.1021/acs.est.4c13182
URL
Keywords
sewage sludge leaching ash, phosphorus recovery hydrothermal, incineration species transformation

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.