Abstract
Percrystallization is a novel zero-liquid discharge process. Unlike conventional desalination methods,
such as reverse osmosis, percrystallization operates primarily as a thermal process. This process
allows liquid transport through the membrane as other pressure driven membrane processes, but the
solvent is evaporated on the permeate side making the solution highly concentrated, leading to the
formation of solid matter. Percrystallization is especially relevant for waste management and
industries focused on solid waste recovery and zero liquid discharge (ZLD). Our research
demonstrates percrystallization’s potential as a transformative method in membrane-based
desalination and wastewater treatment. By enabling partial liquid diffusion through various
membrane types, percrystallization generates highly concentrated permeate that crystallizes into solid
matter, effectively supporting zero liquid discharge (ZLD) goals. Experimental results show a strong
capability for desalination, with North Sea seawater treatment yielding a 4.5 LMH water flux and
108.5 g/m²/h dry matter flux, as well as a condensed water purity of 81.4 μS/cm. Additionally,
percrystallization successfully treats diverse industrial wastewater, from anodizing effluents to sugar
refinery waste, with minimal fouling. This process allows tailored operational control through
temperature, sweeping gas, and vacuum adjustments, making it highly adaptable to industry-specific
needs.
such as reverse osmosis, percrystallization operates primarily as a thermal process. This process
allows liquid transport through the membrane as other pressure driven membrane processes, but the
solvent is evaporated on the permeate side making the solution highly concentrated, leading to the
formation of solid matter. Percrystallization is especially relevant for waste management and
industries focused on solid waste recovery and zero liquid discharge (ZLD). Our research
demonstrates percrystallization’s potential as a transformative method in membrane-based
desalination and wastewater treatment. By enabling partial liquid diffusion through various
membrane types, percrystallization generates highly concentrated permeate that crystallizes into solid
matter, effectively supporting zero liquid discharge (ZLD) goals. Experimental results show a strong
capability for desalination, with North Sea seawater treatment yielding a 4.5 LMH water flux and
108.5 g/m²/h dry matter flux, as well as a condensed water purity of 81.4 μS/cm. Additionally,
percrystallization successfully treats diverse industrial wastewater, from anodizing effluents to sugar
refinery waste, with minimal fouling. This process allows tailored operational control through
temperature, sweeping gas, and vacuum adjustments, making it highly adaptable to industry-specific
needs.
| Originalsprog | Dansk |
|---|---|
| Publikationsdato | 1 jan. 2025 |
| Status | Udgivet - 1 jan. 2025 |
| Begivenhed | 19th DWF water conference - Aarhus, Danmark Varighed: 30 jan. 2025 → 30 jan. 2025 https://danishwaterforum.dk/Research/Annual-Meeting-2025/Annual_announcement2025.html |
Konference
| Konference | 19th DWF water conference |
|---|---|
| Land/Område | Danmark |
| By | Aarhus |
| Periode | 30/01/2025 → 30/01/2025 |
| Internetadresse |
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