Removal of Acid Red 27, Reactive Black 5 and Acid Green 16 from Aqueous Solutions using Potassium Ferrate(VI)
Journal Title: Fibres and Textiles in Eastern Europe - Year 2019, Vol 27, Issue 4
Abstract
The article presents the possibility of using potassium ferrate(VI) (K2FeO4) to remove dyes (Acid Red 27, Reactive Black 5, Acid Green 16) belonging to the single azo, double azo and triarylmethane classes from aqueous solutions with an initial concentration of 100 mg/l (Chemical Oxygen Demand (COD) values for AR27, RB5 and AG16 sulutions were 172, 156 and 198 mg O2/l, respectively). For the most favorable values of oxidation parameters of AR27 and RB5 (pH 7, K2FeO4 concentration, 180 and 240 mg/l, respectively, reaction time 10 min), visual discolouration of the aqueous solutions investigated and a decrease in COD values of 83.7% and 81.4%, respectively, were achieved. In the case of AG 16 dye, in the most favorable conditions of the oxidation process (pH 3, K2FeO4, concentration 300 mg/l, 15 min), visual discolouration and a decrease in the COD value of 83.8% were also obtained. The probable reasons for the higher resistance of AG16 to oxidation using K2FeO4 compared to AR27 and RB5 were also explained, based on the analysis of the structure and type of bonds present in the molecule AG 16.<br/><br/>
Authors and Affiliations
Maciej Thomas, Simona Kliś, Krzysztof Barbusiński, Marek Chyc
Keywords
Related Articles
- EP ID EP559731
- DOI 10.5604/01.3001.0013.1821
- Views 84
- Downloads 0
Performance Stability of Ballistic Para-Aramid Woven Fabrics Modified by Plasma-Assisted Chemical Vapour Deposition (PACVD)
Plasma-assisted chemical vapour deposition (PACVD) is often used for the modification of the surface properties of a wide range of materials. The resulting effect of PACVD modification considerably changes the behaviour...
Characterization of the Twist Distribution Function and Twist Unevenness of Self-twist Yarns
In in-phase self-twist yarn there exists an obviously weak twist area between the twisted and no twisted zones. Therefore, during the self-twist spinning process, different distances from the two strands to the converge...
Zależność pomiędzy wydłużeniem i właściwościami wytrzymałościowymi dzianin o wyglądzie tkaniny dżinsowych produkowanych z włókien celulozowych
Dzianiny o wyglądzie dżinsu są delikatniejsze, tańsze i bardziej elastyczne niż tkaniny dżinsowe. Ubrania, które są produkowane z tych dzianin lepiej dostosowują się do ruchu ciała ze względu na ich podatna strukturę. Po...
New Image Analysis Method for Determination of the Inter-Fibre Pore Size Intensity of Polyester Woven Barrier Fabrics
Porosity is an important characteristic of a filter textile, which affects permeability and retention properties. Determination of the inter-yarn and inter-fibre pore sizes of barrier textiles is also required to assess...
Proposal of Objective Assesment of the Phenomenon of Light Passage Through Blackout Fabrics
The paper presents some possibilities of measuring light passed through textile products applicable as sunshade window curtains. The existing measurement methods were analysed and a new method for measuring the barrier p...