Natural organic matter (NOM) complicates water treatment and causes formation of disinfection byproducts (DBPs). NOM is removed well by nanofiltration (NF) but extensive membrane fouling, especially in the presence divalent cations. This research investigated a hybrid electrodialysis-nanofiltration (ED–NF) system to treat freshwaters containing hardness NOM. ED removes most ions little no NOM, ...

To remove the excess nitrogen and phosphorus in swine wastewater, an electrodialysis technique was applied to an advanced treatment method. The laboratory-scale swine wastewater treatment system constructed for the present study consisted of an activated sludge process, as the main treatment unit, and electrodialysis, as an advanced treatment unit. This system was operated for 200 days and the ...

14 The mechanisms of sorption of four steroidal hormones – estradiol, estrone, progesterone and 15 testosterone – to electrodialysis (ED) membranes were investigated as a function of solution pH 16 and presence of humic acid (HA). Hormone-membrane partition coefficients (log KAEM/CEM) 17 determined through sorption isotherm experiments suggested that hormone sorption was due to 18 hydrogen bond...

Sustainability and circularity are currently two relevant drivers in the development optimisation of industrial processes. This study assessed use electrodialysis (ED) to purify synthetic erythritol culture broth for recovery salts solution, minimising generation waste by representing an efficient alternative remove ions, ensuring their process contributing reaching cleaner standards production...

Production of citric acid from sodium citrate was carried out by electrodialysis (ED), using bipolar membranes (BP) prepared from poly(phenylene oxide) (PPO). The process feasibility was tested using a laboratory ED-cell with an effective area 20 cm. Based on the configuration of BP-cation membranes (C)-BP, the performances of various sodium sulfate concentrations and sodium citrate concentrati...

Abstract Membrane-based processes have gained a relevant role in many engineering applications. Much effort has been devoted to thoroughly understand the fundamental phenomena behind them. However, membrane deformation taken into consideration only recently, although much evidence shown its impacts This work presents novel 2-D, multi-scale, semi-empirical process model able predict behavior and...

The demand is rising for desalination technologies to treat highly saline brines arising from hydraulic fracturing processes and inland desalination. Interest is growing in the use of electrical desalination technologies for this application. The hybridization of electrodialysis (ED) with reverse osmosis (RO) allows high salinities (beyond the range of RO alone) to be reached while avoiding the...

Electrodialysis (ED) has recently gained much attention in the wide field of desalination and water treatment. However, energy consumption capital costs may impair process competitiveness. In this regard, limiting current density (LCD) efficiency (η) are key performance parameters for optimized ED systems. work, an experimental campaign was carried out characterizing stacks when adopting asymme...

This work presents a versatile chemistry platform for the fabrication of hierarchical cation and anion exchange membranes (hCEMs hAEMs) with tuneable transport properties. A strong focus was put onto developing cost-effective fabricated through sustainable easily scalable process, performance at least as good industry standard materials. Hierarchical ion were by coating UV crosslinking an acryl...

Wastewater treatment and removal of heavy metals are great importance, especially in terms industry, economy, environment public health. Electrodialysis desalination mode is an effective process for treating contaminated solutions further recovery to new uses. In this work, the copper ions from solution using a recirculating electrodialysis system was studied. Different factors affecting ED per...