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Accumulated flux and resistances in clarification of sugarcane juice by microfiltration – impact of operational parameters
Ferreira, R.E1, Cozar, C.A2, Schmidt, F.L3.
Effects of operational parameters of microfiltration on permeate flux and individual resistances
were evaluated. Assays were undertaken using ceramic membranes (pore size of 0.2 µm).
Operational parameters – temperature and transmembrane pressure (TMP) – varied from 25.9
to 54.1°C, and from 1.8 to 3.2 bar, respectively. The main influence on time of processing was
exerted by temperature (lowest values for highest temperatures, indicating a relationship to
the viscosity). Resistance by irreversible fouling (RIF) was the most representative, while by
membrane (RM) was the least. RIF was influenced by temperature and TMP, although temperature
had been the most important. Reversible fouling (RRF) was also influenced by temperature and
TMP, with the first presenting the highest impact. Mathematical models proposed for RIF and
RRF exhibits good fit to the experimental data, respectively, 95 and 93%. Results found suggest
that: higher temperatures contribute for shorter periods of processing; higher TMP contribute
for higher initial fluxes; the highest contribution of RIF to the general total resistance occurred
as a function of a considerable blockage of pores of membrane by suspended and colloidal
particles; and models proposed for the resistances (RIF and RRF) can be applied to predict the
experimental data with good accuracy.
Affiliation:
- State University of Campinas, Brazil
- State University of Campinas, Brazil
- State University of Campinas, Brazil
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Indexation |
Indexed by |
MyJurnal (2017) |
H-Index
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8 |
Immediacy Index
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0.002 |
Rank |
24/42,Q3(Sciences ) 24/42,Q3(Sciences ) 8/20,Q2(Medical & Health Sciences )
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Indexed by |
Scopus (SCImago Journal Rankings 2016) |
Impact Factor
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- |
Rank |
Q3 (Food Science) |
Additional Information |
0.335 (SJR) |
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