Membrane distillation as a second stage treatment of hydrothermal liquefaction wastewater after ultrafiltration
نویسندگان
چکیده
The aim of this study is the utilization membrane distillation (MD) in treatment hydrothermal liquefaction wastewater (HTL-WW) to recover ammonium condensate. Experiments were carried out using MD under air–gap configuration with HTL-WW pretreated via Ultrafiltration. results showed stability long-term operations, up 36 days and through a wide range feed temperatures, from 30 °C 60 (Coolant temperature was kept at 20 °C). Feed 50 provided best condensate quality, defined by high concentrations, 12 g/L (for temperature), low impurity (low contamination TOC) based on highest NH4+:TOC ratio 13 temperature). Furthermore, since flux experienced an exponential growth increase temperature, chosen as optimal expand membrane/condensate recovery, which performed until 80%. From observational several analytical methods, wetting unavoidable above 60% recovery cause credited organic fouling, mainly surfactants’ adsorption surface. This decreased hydrophobicity, eventually led progressive 80% recovery.
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ژورنال
عنوان ژورنال: Separation and Purification Technology
سال: 2022
ISSN: ['1873-3794', '1383-5866']
DOI: https://doi.org/10.1016/j.seppur.2021.120379