{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Zhan Z"],"funding":["Shenzhen Science and Technology Innovation Commission","Natural Science Foundation of Guangdong Province (Guangdong Natural Science Foundation)"],"pagination":["100"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12775475"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["17(1)"],"pubmed_abstract":["Lime-based precipitation, though widely adopted for wastewater phosphorus (P) removal, suffers from surface passivation. The passivation layer inhibits Ca<sup>2+</sup> release, forcing excessive dosing while yielding low-quality sludge and effluent with elevated hardness and pH. Limestone, despite its economic and environmental benefits, exhibits limited efficacy under fluctuating alkalinity. Here, we develop a limestone-integrated electrochemical system that spatially decouples the dissolution and precipitation reactions. By strategically positioning limestone at the acidic anode, we ensure sustained Ca<sup>2+</sup> release without passivation, while cathodic alkalinity enables efficient P recovery (85.7%). The system produces high-purity products (15.2 wt% P) at low energy consumption (14.8 kWh kg P<sup>-1</sup>) and delivers superior effluent quality. Beyond its robustness and capacity flexibility over long-term operation, the electrochemical strategy reduces overall costs by 73.2% and carbon emissions by 29.1%, positioning it as a cost-effective and sustainable alternative to traditional lime-based wastewater treatment with remarkable passivation resistance and resource recovery efficiency."],"journal":["Nature communications"],"pubmed_title":["Spatially decoupled electrochemical strategy for lime passivation prevention and sustainable phosphate recovery."],"pmcid":["PMC12775475"],"funding_grant_id":["JCYJ20250604144607011","JCYJ20230807093405011","2023A1515110152"],"pubmed_authors":["Lv J","Li W","Liu J","Lei Y","Liu C","Zhan Z"],"additional_accession":[]},"is_claimable":false,"name":"Spatially decoupled electrochemical strategy for lime passivation prevention and sustainable phosphate recovery.","description":"Lime-based precipitation, though widely adopted for wastewater phosphorus (P) removal, suffers from surface passivation. The passivation layer inhibits Ca<sup>2+</sup> release, forcing excessive dosing while yielding low-quality sludge and effluent with elevated hardness and pH. Limestone, despite its economic and environmental benefits, exhibits limited efficacy under fluctuating alkalinity. Here, we develop a limestone-integrated electrochemical system that spatially decouples the dissolution and precipitation reactions. By strategically positioning limestone at the acidic anode, we ensure sustained Ca<sup>2+</sup> release without passivation, while cathodic alkalinity enables efficient P recovery (85.7%). The system produces high-purity products (15.2 wt% P) at low energy consumption (14.8 kWh kg P<sup>-1</sup>) and delivers superior effluent quality. Beyond its robustness and capacity flexibility over long-term operation, the electrochemical strategy reduces overall costs by 73.2% and carbon emissions by 29.1%, positioning it as a cost-effective and sustainable alternative to traditional lime-based wastewater treatment with remarkable passivation resistance and resource recovery efficiency.","dates":{"release":"2026-01-01T00:00:00Z","publication":"2026 Jan","modification":"2026-06-09T05:30:31.512Z","creation":"2026-06-09T03:07:53.303Z"},"accession":"S-EPMC12775475","cross_references":{"pubmed":["41495040"],"doi":["10.1038/s41467-025-67911-1"]}}