Purpose: The main aim of the research presented in this article was identification and categorization of the main production waste generated in the textile and clothing industry and their impact on the environment in the context of sustainable development, together with the presentation of several proposals for solutions to the problem of production waste. Nowadays, through the newly emerging EU directives, the increasing population and consumer lifestyle, thus the huge amounts of generated waste, the problem of waste coming from textile and clothing industry will increase and it will be more important to find new solutions to it. Design/methodology/approach: In the research presented in this article, an analysis of the literature on the processes of the textile and clothing industry was used; waste generation from these industries and their impact on the environment along with the concept of sustainable development. Findings: The management of waste from the textile and clothing industry is an important factor influencing the sustainable development of the economy, both in the world and in Poland. Under the newly created EU directives, it will be a very important issue in the future, which will require urgent addressing this topic and finding optimal solutions in the context of sustainable development or the circular economy. Research limitations/implications: In the future, research will be continued in the field of production waste management in the textile and clothing industry, their disposal or recycling. Practical implications: This article provides an overview of quantitative research and diversity of waste from the textile and clothing industry in Poland and in the world. This review shows the importance and scale of the problem and allows for further continuation of research to manage the generated waste. The author has also collected concepts for the further management of post-production waste, which she presented in the article, but they require a broader and more detailed analysis. Originality/value: Based on empirical research, the article shows the scale of the problem that, through the new EU directives on the circular economy and sustainable development, will be a forward-looking and important issue. Additionally, the article presents concepts for waste management from the industrial and consumer perspective.
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The paper presents the application of potassium ferrate(VI) (K2FeO4) for the removal of selected pollutants from water and wastewater. The research results on the degradation of endocrine disrupting compounds (EDCs), decomposition of surfactants (SPCs), personal care products (PCPs), pharmaceuticals and their metabolites have been reviewed. Due to K2FeO4 strong oxidizing and coagulating properties, high stability, non-toxic by-products and non-selectivity it is sometimes called “environmentally friendly oxidant”. Due to this reasons K2FeO4 can be a multi-purpose water and wastewater treatment chemical and an alternative to advanced oxidation processes (AOPs).
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.
PL
W artykule przedstawiono możliwość zastosowania żelazianu(VI) potasu (K2FeO4) do usuwania barwników (Acid Red 27, Reactive Black 5, Acid Green 16), należących do barwników azowych i triarylometanowych z roztworów wodnych o stężeniu początkowym 100 mg/dm3 (wartości ChZT(Cr) dla roztworów Acid Red 27, Reactive Black 5 i Acid Green 16 wynosiły odpowiednio 172, 156 i 198 mg O2/dm3). Dla najkorzystniejszych wartości parametrów procesu utleniania Acid Red 27, Reactive Black 5 (pH 7, stężenie K2FeO4 odpowiednio 180 i 240 mg/dm3, czas reakcji 10 min.), uzyskano wizualne odbarwienie badanych roztworów wodnych oraz zmniejszenie wartości ChZT(Cr), odpowiednio o 83,7% i 81,4%. W przypadku barwnika Acid Green 16, w najkorzystniejszych warunkach przebiegu procesu utleniania (pH 3, stężenie K2FeO4 300 mg/dm3, czas reakcji 15 min.), uzyskano także wizualne odbarwienie oraz zmniejszenie wartości ChZT(Cr) o 83,8%. Wyjaśniono też prawdopodobne przyczyny większej odporności Acid Green 16 w stosunku do Acid Red 27 i Reactive Black 5 na utlenianie z zastosowaniem K2FeO4, na podstawie analizy budowy i rodzaju wiązań obecnych w cząsteczce barwnika Acid Green 16.
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