Effects of peracetic acid on aromatic polyamide nanofiltration membranes: a comparative study with chlorine

Abstract

Peracetic acid (PAA) is being considered as a disinfectant in membrane-based wastewater reuse systems. This study shows that PAA is overall compatible with polyamide membranes and proposes PAA-polyamide reaction mechanisms.

Comparative Degradation Kinetics Study of Polyamide Thin Films in Aqueous Solutions of Chlorine and Peracetic Acid Using Quartz Crystal Microbalance

“…Sodium hypochlorite (5% available chlorine, Ricca Chemical Company) and peracetic acid (32 wt % in dilute acetic acid, 5.4 wt % H 2 O 2 , Sigma-Aldrich) were stored at 4 °C. Further, a recent study showed that the loss of polyamide membrane performance by PAA is not accelerated in the presence of ferrous iron, at either low or high H 2 O 2 /PAA ratios. Therefore, in this present study, we did not employ iron-containing solutions to avoid the additional mass (from ions) during QCM measurements.…”

“…Recently, peracetic acid (PAA), an organic peroxide, is proposed as a promising oxidant for membrane cleaning. , PAA has approximately 100-fold greater disinfection strength than H 2 O 2 and exhibits comparable bacterial inactivation as free chlorine in laboratory-based and pilot-scale , studies. To date, only two studies examined PAA interactions with polyamide using commercial membranes. , No significant change in membrane performance was observed upon PAA exposure up to 180 g h L –1 . In addition, unlike H 2 O 2 , PAA does not accelerate the deterioration of membrane performance in the presence of iron .…”

“…To date, only two studies examined PAA interactions with polyamide using commercial membranes. , No significant change in membrane performance was observed upon PAA exposure up to 180 g h L –1 . In addition, unlike H 2 O 2 , PAA does not accelerate the deterioration of membrane performance in the presence of iron . However, surface characterization suggested that polyamide could react with PAA to form new oxygen functional groups .…”

“…In addition, unlike H 2 O 2 , PAA does not accelerate the deterioration of membrane performance in the presence of iron . However, surface characterization suggested that polyamide could react with PAA to form new oxygen functional groups . More studies are warranted to provide a detailed characterization of the PAA-induced morphological and chemical stability/change of polyamide to provide mechanistic insight into PAA–polyamide interaction.…”

A Review on Ion-Exchange Membranes Fouling during Electrodialysis Process in Food Industry, Part 2: Influence on Transport Properties and Electrochemical Characteristics, Cleaning and Its Consequences

“…This fact, together with the need to counteract the growth of colloidal structures inside IEM and on its surface, necessitate regular cleaning of membrane stacks of ED apparatuses [26]. Most often, HCl, NaOH, hypochlorides and other oxidants (peracetic acid, and P3 Active Oxonia ® (Ecolab, Saint Paul, MN, USA) solutions) are used for these purposes [27][28][29][30][31][32][33][34]. Moreover, cleaning is carried out at a high temperature (60-90 • C) [35][36][37].…”