Comparison of the performance of UF membranes in olive mill wastewaters treatment

被引：107
作者：
Cassano, A. [1 ]
Conidi, C. [1 ]
Drioli, E. [1 ]
机构：
[1] Univ Calabria, ITM CNR, Inst Membrane Technol, I-87030 Arcavacata Di Rende, CS, Italy
来源：
WATER RESEARCH | 2011年 / 45卷 / 10期
关键词：
Olive mill wastewater (OMW); Ultrafiltration (UF); Polyphenols; Total antioxidant activity (TAA); WASTE-WATER; ANTIOXIDANT CAPACITY; ANAEROBIC-DIGESTION; RECOVERY; ULTRAFILTRATION; BIOREMEDIATION; DECOLORIZATION; POLYPHENOLS;
D O I：
10.1016/j.watres.2011.03.041
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Olives are known to contain an appreciate amount of phenols with good antioxidant properties which are lost in large part in olive mill wastewaters (OMWs) during olive oil production. Membrane technology offers several advantages (low energy consumption, no additive requirements, no phase change) over traditional techniques to recover phenolic compounds from OMWs. The aim of this work was to evaluate the performance of different UF membranes in the treatment of OMWs finalized to the recovery of polyphenols. For this purpose, OMWs were processed, in selected operating conditions, with four flat-sheet UF membranes characterized by different molecular weight cut-off (MWCO) (4, 5 and 10 kDa) and polymeric material (regenerated cellulose and polyethersulphone). Permeate fluxes, fouling index and retention coefficients towards phenolic compounds, total antioxidant activity (TAA) and total organic carbon (TOC) were evaluated. Regenerated cellulose membranes exhibited lower rejections towards phenolic compounds, higher permeate fluxes and lower fouling index if compared with PES membranes. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3197 / 3204
页数：8
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