Solutions concentration by natural membrane evaporation
Ładowanie...
Data
2022-05-23
Autorzy
Tytuł czasopisma
ISSN czasopisma
Tytuł tomu
Wydawca
Slovak Society of Chemical Engineering Institute of Chemical and Environmental Engineering Slovak University of Technology in Bratislava
Abstrakt
The development of cheap water evaporation methods can facilitate the management of
various waste solutions. In this work an idea of solutions concentration by water evaporation from
the surface of capillary membranes, whose bundles are loosely distributed inside large chambers
was presented. For this purpose, the membrane evaporation was realized by using the capillary
module without a housing (module shell). This design allows the process to be carried out with low
gas flow (close to natural convection) and for high gas flow velocities (forced convection). In such
a system, the solar energy transferred to the air surrounding the installation is used to evaporate the
water. During the tests the feed was flowing inside the hydrophobic polypropylene membranes,
whereas the water evaporated through the non-wetted membrane pores into the air surrounding the
module. The capillary length was 1 m, which allowed to obtain conditions like those in industrial
modules. The paper considers how the process parameters and the feed composition affect the
efficiency and fouling of membranes.
Opis
Słowa kluczowe
solutions separation and concentration, oily wastewater, membrane distillation
Cytowanie
PROCEEDINGS 48th International Conference of the Slovak Society of Chemical Engineering SSCHE 2022 and Membrane Conference PERMEA 2022