Degradation of organic wastewater containing Cu–EDTA by Fe–C micro-electrolysis

Treatment of dinitrodiazophenol production wastewater by Fe/C and Fe/Cu internal electrolysis and the COD removal kinetics

“…With the increase of reaction temperatures, the more energy and radicals are still generated, causing more pollutants to decompose (Fig. 4, Fe/Cu IE) [22]. However, with further increase of reaction temperatures, molecular kinetic energy of contaminants would increase rapidly.…”

Water purification from metal ions in the presence of organic matter using electromagnetic radiation-assisted treatment

“…EDTA has been selected because it is used extensively by various manufacturing industries including paint, electronics, pesticides, and photography, meaning that high concentrations of EDTA will be discharged within their effluents (Babay et al, 2001;Huang et al, 2016). EDTA is also recognised as chelating heavy metals in aquatic environments forming a refractory complex (Chen et al, 2012). Iron was selected as a heavy metal model because it is found in abundance in the Earth's crust (approximately 5.0 % of the chemicals in geological formations) and in the effluents of a wide range of industries, such as fertiliser and surface treatment plants (Babay et al, 2001;Huang et al, 2016).Iron is found occurring in all forms of freshwater resources.…”

“…500 mL samples with a lower concentration of iron, 20 mg/L, were diluted from this stock solution, OM then added to each of these samples. Ethylenediaminetetraacetic acid (EDTA) was used as an organic matter because it has the ability to chelate heavy metal ions to form complexes that resist traditional treatment methods (Chen et al, 2012;Lin et al, 2015). It is also widely used in different industrial and domestic applications such as detergents, painting, fertilisers, printed circuit boards, herbicides, and photography, and surface treatment industries.…”

The preparation, characterization of FeC micro‐electrolysis materials using low‐cost biochar and the removal of ultra‐high COD pesticide wastewater

“…The advantages of iron carbon materials are: (1) combining multiple ways including oxidation reduction, adsorption, electrodeposition and coprecipitation; (2) improving the biochemical ability of wastewater; (3) enlarging its application scope by adjusting the iron/carbon ratio; (4) the whole processing system is stable (Chen et al . ; Wu et al . ; Zhu et al .…”