English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Synthetic dyes are widely used in the textile industry. It is estimated that about 2-50 % of these dyes are lost during the dying process and released in the effluents. These compounds are highly colored and can cause severe contamination of water sources. In this study, ferrate has been employed for the treatment of indigo blue aqueous solutions and denim wastewater. The electrosynthesis of ferrate was carried out using a 2 4 factorial design and the optimal conditions were found: current density of 100 mA/cm 2 , room temperature, kind and concentration of electrolyte, NaOH 20 M. Under these conditions, 6.89 g/L (41.54 mM) of ferrate was produced. The successful synthesis of ferrate was confirmed using infrared spectroscopy, ultraviolet spectroscopy, and cyclic voltammetry. The electrosynthesized sodium ferrate (Na 2 FeO 4 )and potassium ferrate (K 2 FeO 4 ) were evaluated in a jar test. The maximum dye removal percentage (> 77 %) was achieved using Na 2 FeO 4 at a dose of 300 mg/L. In denim wastewater, the best color removal efficiency was 92.51 % using 200 mg/L of K 2 FeO 4 at 30 min. The increased biodegradability index (0.98) after treatment by K 2 FeO 4 confirmed that the biorefractory compounds were oxidized/removed.

ELECTROSYNTHESIS OF SODIUM AND POTASSIUM FERRATE FOR THE TREATMENT OF INDIGO BLUE AQUEOUS SOLUTIONS AND DENIM WASTEWATER