TY - JOUR
T1 - Black tea liquor ultrafiltration
T2 - effect of ethanol pre-treatment upon fouling and cleaning characteristics
AU - Argyle, Iain
AU - Pihlajamӓki, Arto
AU - Bird, Michael
PY - 2015/1
Y1 - 2015/1
N2 - tThis paper reports on the use of polymeric ultrafiltration (UF) membrane ethanol pre-treatment as a strategy toimprove filtration performance in terms of both flux increase, and membrane water flux recovery following cleaning.A 4-fold pure water flux (PWF) increase was observed for a 100 kDa polysulfone membrane. Marked increases inpermeate flux were recorded for ethanol treated UF membranes over a range of molecular weight cut-off values.Ethanol treatment also aided fluxes over multiple foul-clean cycles, and enabled the enhanced transmission ofpolyphenols during UF for the clarification of black tea liquor. Following tea fouling and NaOH cleaning repetitions,PWF values of treated membranes were returned to values of >150% of the untreated virgin membrane PWF over4/5 consecutive cycles, indicating that the ethanol pre-treatment strategy adopted had a prolonged effect uponsubsequent performance.
AB - tThis paper reports on the use of polymeric ultrafiltration (UF) membrane ethanol pre-treatment as a strategy toimprove filtration performance in terms of both flux increase, and membrane water flux recovery following cleaning.A 4-fold pure water flux (PWF) increase was observed for a 100 kDa polysulfone membrane. Marked increases inpermeate flux were recorded for ethanol treated UF membranes over a range of molecular weight cut-off values.Ethanol treatment also aided fluxes over multiple foul-clean cycles, and enabled the enhanced transmission ofpolyphenols during UF for the clarification of black tea liquor. Following tea fouling and NaOH cleaning repetitions,PWF values of treated membranes were returned to values of >150% of the untreated virgin membrane PWF over4/5 consecutive cycles, indicating that the ethanol pre-treatment strategy adopted had a prolonged effect uponsubsequent performance.
UR - http://dx.doi.org/10.1016/j.fbp.2014.10.010
U2 - 10.1016/j.fbp.2014.10.010
DO - 10.1016/j.fbp.2014.10.010
M3 - Article
SN - 0960-3085
VL - 93
SP - 289
EP - 297
JO - Transactions of the Institution of Chemical Engineers Part C: Food and Bioproducts Processing
JF - Transactions of the Institution of Chemical Engineers Part C: Food and Bioproducts Processing
ER -