PMID- 34068543
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240402
IS  - 2077-0375 (Print)
IS  - 2077-0375 (Electronic)
IS  - 2077-0375 (Linking)
VI  - 11
IP  - 5
DP  - 2021 May 10
TI  - Dynamic Modeling of Fouling in Reverse Osmosis Membranes.
LID - 10.3390/membranes11050349 [doi]
LID - 349
AB  - During reverse osmosis (RO) membrane filtration, performance is dramatically 
      affected by fouling, which concurrently decreases the permeate flux while 
      increasing the energy required to operate the system. Comprehensive design and 
      optimization of RO systems are best served by an understanding of the coupling 
      between membrane shape, local flow field, and fouling; however, current studies 
      focus exclusively on simplified steady-state models that ignore the dynamic 
      coupling between fluid flow, solute transport, and foulant accumulation. We 
      developed a customized solver (SUMs: Stanford University Membrane Solver) under 
      the open source finite volume simulator OpenFOAM to solve transient 
      Navier-Stokes, advection-diffusion, and adsorption-desorption equations for 
      foulant accumulation. We implemented two permeate flux reduction models at the 
      membrane boundary: the resistance-in-series (RIS) model and the 
      effective-pressure-drop (EPD) model. The two models were validated against 
      filtration experiments by comparing the equilibrium flux, pressure drop, and 
      fouling pattern on the membrane. Both models not only predict macroscopic 
      quantities (e.g., permeate flux and pressure drop) but also the fouling pattern 
      developed on the membrane, with a good match with experimental results. 
      Furthermore, the models capture the temporal evolution of foulant accumulation 
      and its coupling with flux reduction.
FAU - Ling, Bowen
AU  - Ling B
AUID- ORCID: 0000-0002-3218-4807
AD  - Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China.
FAU - Xie, Peng
AU  - Xie P
AD  - Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China.
FAU - Ladner, David
AU  - Ladner D
AUID- ORCID: 0000-0002-9214-783X
AD  - Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China.
FAU - Battiato, Ilenia
AU  - Battiato I
AUID- ORCID: 0000-0002-7453-6428
AD  - Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China.
LA  - eng
GR  - 1242861-12-SDGBM/the National Alliance for Water Innovation/
GR  - 1533874/the National Science Foundation/
PT  - Journal Article
DEP - 20210510
PL  - Switzerland
TA  - Membranes (Basel)
JT  - Membranes
JID - 101577807
PMC - PMC8151604
OTO - NOTNLM
OT  - OpenFoam
OT  - RO membrane
OT  - numerical model
COIS- The authors declare no conflict of interest.
EDAT- 2021/06/03 06:00
MHDA- 2021/06/03 06:01
PMCR- 2021/05/10
CRDT- 2021/06/02 01:22
PHST- 2021/04/19 00:00 [received]
PHST- 2021/05/04 00:00 [revised]
PHST- 2021/05/05 00:00 [accepted]
PHST- 2021/06/02 01:22 [entrez]
PHST- 2021/06/03 06:00 [pubmed]
PHST- 2021/06/03 06:01 [medline]
PHST- 2021/05/10 00:00 [pmc-release]
AID - membranes11050349 [pii]
AID - membranes-11-00349 [pii]
AID - 10.3390/membranes11050349 [doi]
PST - epublish
SO  - Membranes (Basel). 2021 May 10;11(5):349. doi: 10.3390/membranes11050349.