Ammonium nitrate (AN) is produced by the reaction of ammonia and nitric acid, and a waste condensate is obtained. The condensate contains pure AN in concentration up to 10g/L. The salt content in the condensate is too high to discharge immediately into the river thus it must be treated. This study is concerned with the treatment of condensates from an industrial AN production by combination of ...

• A hybrid electrochemical-membrane fermentation process was developed. Higher voltage of electrodialysis recovered more nutrients but with lower current efficiency. Forward osmosis concentrated the acetate and ammonium in recovery by 14- 10-fold. Saccharomyces cerevisiae fed on recoveries achieved SCP productions 0.76–0.86 g/L. The production costs estimated to be €20.4/kg-SCP ED-fermentation....

• Theory for ion transport in multicomponent electrolytes electrodialysis. Selective removal of nitrate over chloride is observed. Strategies to increase selectivity are evaluated. Increasing the membrane thickness results an increased selectivity. Decreasing charge density We analyze selective anions electrodialysis (ED) from a mixture where all ions monovalent, both experimentally, and by mod...

The present study investigated the feasibility of the recovery and reuse oxalic acid in a multistage process for the pretreatment of a lignocellulosic biomass. Electrodialysis (ED), an electrochemical process using ion exchange membranes, was used to recover and reuse oxalic acid in the multistage process. The ED optimal condition for recover oxalic acid was potential of 10V and pH 2.2 in synth...

Water provision for developing countries is a critical issue as a vast number of lives are lost annually due to lack of access to safe drinking water. The presence and fate of inorganic trace contaminants is of particular concern. Trace inorganic contaminants have been found in elevated concentrations in drinking waters supplied directly from brackish groundwaters in developing countries. Desal...

A new bio-inspired method was applied in this study to simultaneously improve the monovalent anion selectivity and antifouling properties of anion exchange membranes (AEMs). Three-layer architecture was developed by deposition of polydopamine (PDA) and electro-deposition of N-O-sulfonic acid benzyl chitosan (NSBC). The innermost and outermost layers were PDA with different deposition time. The ...

In this study, demineralization of cheese whey by sequential nanofltration (NF) and electrodialysis (ED) methods was investigated. For the NF step, two NF membranes labeled as NF-270 and NF-90 were tested. Approximately 90% of protein and lactose rejections were obtained with partial demineralization during NF step. For full demineralization of the NF permeate, NF follo...

Shock electrodialysis (shock ED), an emerging electrokinetic process for water purification, leverages the new physics of deionization shock waves in porous media. In previous work, a simple leaky membrane model with surface conduction can explain propagation shocks ED system, but it cannot quantitatively predict and conductance (which determines energy consumption), selective removal ions expe...

Abstract The demand of lithium in the global market is experiencing a significant increase. electric vehicle era driving force this increase phenomenon. Although continues to every year, available resources are still not able meet demand, so that with much greater potential being considered. main objective study extract from primary resource, geothermal brine, practical and environmentally frie...

H����� V., M������ K., R������� M. (2004): Modern method of lactic acid recovery from fermentation broth. Czech J. Food Sci., 22: 87–94. Electrodialysis was used for lactic acid recovery from fermentation broth. In the first step, lactate was recovered and concentrated by desalting electrodialysis, and the second step was electroconversion of lactate to lactic acid by water-splitting electrodia...