Academic Journal
Waste heat promoted ammonia recovery from sludge lysate using a MES-TMCS system: thermal-electric-microbial synergies.
| Τίτλος: | Waste heat promoted ammonia recovery from sludge lysate using a MES-TMCS system: thermal-electric-microbial synergies. |
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| Συγγραφείς: | Zhai S; School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China., Wang X; School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China., Ma W; School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China., Wang Q; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China., Liu C; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China; Jianghan Machinery Research Institute Limited Company of CNPC, Wuhan, 430021, China. Electronic address: liuchengyandr@cnpc.com.cn., Liu W; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China., Zhao Y; School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China., Wang A; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China. Electronic address: waj0578@hit.edu.cn., Cheng HY; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China. Electronic address: chenghaoyi@hit.edu.cn. |
| Πηγή: | Water research [Water Res] 2026 Oct 15; Vol. 305, pp. 126445. Date of Electronic Publication: 2026 Jul 06. |
| Τύπος έκδοσης: | Journal Article |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Pergamon Press Country of Publication: England NLM ID: 0105072 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-2448 (Electronic) Linking ISSN: 00431354 NLM ISO Abbreviation: Water Res Subsets: MEDLINE |
| Imprint Name(s): | Original Publication: Oxford, Pergamon Press. |
| Ιατρικοί όροι (MeSH): | Ammonia*/isolation & purification , Sewage*/chemistry , Sewage*/microbiology , Waste Disposal, Fluid*/methods , Electrochemical Techniques*/methods, Hot Temperature ; Nitrogen |
| Περίληψη: | Sludge lysate from low-temperature pyrolysis is rich in high ammonia and waste heat (<100 °C), yet its conversional treatment is energy- and chemical- intensive. Microbial electrochemical systems (MES) coupled with ammonia recovery technologies have shown considerable potential for nitrogen recovery, but remain untested for such thermally impacted wastewaters. Here, an MES coupled with a transmembrane capture system (MES-TMCS) was applied to sludge lysate to investigate the ammonia recovery performance and underlying mechanisms under controlled temperature (25-45 °C). The best performance was achieved when both chambers were maintained at 45 °C. The NH₄⁺-N removal efficiency reached 81.26 ± 11.01%, representing a 31.77-percentage-point increase over the room-temperature group. The recovery ratio reached 0.94 ± 0.09, corresponding to a 1.65-fold improvement. Meanwhile, current generation was enhanced by 2.46-fold, and the system completely eliminated external alkali addition by exploiting cathodic OH- production. Analysis of FT-ICR-MS indicated that elevated temperature likely promoted to the partial biotransformation of nitrogen-containing organics (CHON) during microbial electrochemical conversion. The high temperature selectively enriched thermophilic electroactive bacteria (Desulfurella and Thermincola) and anaerobic degraders (Caldicellulosiruptor), which could enhance the electron transfer and refractory organics breakdown, thereby increasing NH (Copyright © 2026 Elsevier Ltd. All rights reserved.) |
| Competing Interests: | Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. |
| Contributed Indexing: | Keywords: Ammonia recovery; Microbial electrochemical systems; Organic nitrogen transformation; Sludge lysate; Waste heat utilization |
| Substance Nomenclature: | 7664-41-7 (Ammonia) 0 (Sewage) N762921K75 (Nitrogen) |
| Entry Date(s): | Date Created: 20260714 Date Completed: 20260909 Latest Revision: 20260909 |
| Update Code: | 20260909 |
| DOI: | 10.1016/j.watres.2026.126445 |
| PMID: | 42447665 |
| Βάση Δεδομένων: | MEDLINE |
| ISSN: | 1879-2448 |
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| DOI: | 10.1016/j.watres.2026.126445 |