Membrane-Based Valorization of Sludge Digestates Feedstock Characteristics, Pretreatment Effects, and Separation Performance /
Sewage sludge management is increasingly shifting from a liability-focused “treat-and-dispose” approach toward resource recovery, where digestion residues and their liquid fractions are treated as secondary feedstocks for nutrient, water, and energy recovery. In Europe, the recast Urban Wastewater T...
Elmentve itt :
| Szerzők: | |
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| Dokumentumtípus: | Cikk |
| Megjelent: |
2026
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| Sorozat: | WATER
18 No. 12 |
| Tárgyszavak: | |
| doi: | 10.3390/w18121505 |
| mtmt: | 37346581 |
| Online Access: | http://publicatio.bibl.u-szeged.hu/40511 |
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| 490 | 0 | |a WATER |v 18 No. 12 | |
| 520 | 3 | |a Sewage sludge management is increasingly shifting from a liability-focused “treat-and-dispose” approach toward resource recovery, where digestion residues and their liquid fractions are treated as secondary feedstocks for nutrient, water, and energy recovery. In Europe, the recast Urban Wastewater Treatment Directive strengthens performance and monitoring requirements and reinforces the need for efficient sludge treatment and downstream valorization routes. This review synthesizes evidence on how pretreatment-induced changes in digestate properties translate into membrane performance outcomes and maps practical design implications for selecting pretreatment-membrane trains for nutrient recovery and reclaimed water production. Pressure-driven membrane methods (MF/UF/NF/RO), together with membrane distillation and electrodialysis, are central candidates for producing clarified water streams and concentrating nutrients; however, their performance is governed by digestate rheology, colloidal stability, and the composition of soluble microbial products and inorganic ions, which collectively shape fouling and scaling risks. Pretreatments such as thermal hydrolysis and microwave conditioning can modify floc structure and solubilize organics, with potential benefits for dewaterability and mass transfer, but can also shift particle size distributions toward fines and increase fouling propensity if not coupled with appropriate solid–liquid separation and conservative flux control. Emphasis is placed on mechanisms and operational trade-offs rather than single-point performance claims, highlighting where evidence is robust and where further comparability and full-scale validation remain necessary. | |
| 650 | 4 | |a Föld- és kapcsolódó környezettudományok | |
| 650 | 4 | |a Környezetmérnöki tudományok | |
| 700 | 0 | 1 | |a Jákói Zoltán Péter |e aut |
| 700 | 0 | 1 | |a Hodúr Cecilia |e aut |
| 700 | 0 | 1 | |a Beszédes Sándor |e aut |
| 856 | 4 | 0 | |u http://publicatio.bibl.u-szeged.hu/40511/1/water-18-01505-v2.pdf |z Dokumentum-elérés |