Immobilization as a powerful Bioremediation tool for abatement of dye pollution: A review

2020 ◽  
Author(s):  
Purbasha Saha ◽  
K.V.Bhaskara Rao

Dyes are xenobiotic compounds widely used by textile, leather, paper, printing, food, pharmaceutical, and cosmetic industries. Decolorization and dye degradation in the effluents is a prime hurdle in its treatment, and there is still a shortage of economically attractive and easy-to-operate treatments that can eliminate dye pollution. In recent years, chemical-based treatments are being replaced by greener technologies at the lab and industrial scale to combat dye pollution. It is noteworthy that immobilization is a biotechnological tool that greatly enhances bioremediation's potential. The present review has covered the basic concepts of immobilization, including the different immobilization techniques and the various carriers used for immobilization. The efficient immobilization of a biocatalyst depends on the proper choice of a carrier combined with a suitable immobilization technique. Hence, this review provides a comparative analysis of the different immobilization techniques and carriers used. Further, there is an in-depth discussion on the potential of immobilized enzymes and cells as bioremediation agents for dye degradation. Nearly all the studies indicated that immobilization enhanced the biodecolorization of colored wastewater compared to free systems. Further, the potential of immobilized systems for large scale industrial implementation was also examined. The article ends with a note on the loopholes of research on immobilization and future scopes of this technique.

Author(s):  
Jakub Zdarta ◽  
Katarzyna Jankowska ◽  
Karolina Bachosz ◽  
Oliwia Degórska ◽  
Karolina Kaźmierczak ◽  
...  

Abstract Purpose of Review In the presented review, we have summarized recent achievements on the use of immobilized oxidoreductases for biodegradation of hazardous organic pollutants including mainly dyes, pharmaceuticals, phenols, and bisphenols. In order to facilitate process optimization and achievement of high removal rates, effect of various process conditions on biodegradation has been highlighted and discussed. Recent Findings Current reports clearly show that immobilized oxidoreductases are capable of efficient conversion of organic pollutants, usually reaching over 90% of removal rate. Further, immobilized enzymes showed great recyclability potential, allowing their reuse in numerous of catalytic cycles. Summary Collected data clearly indicates immobilized oxidoreductases as an efficient biocatalytic tools for removal of hazardous phenolic compounds, making them a promising option for future water purification. Data shows, however, that both immobilization and biodegradation conditions affect conversion efficiency; therefore, process optimization is required to achieve high removal rates. Nevertheless, we have demonstrated future trends and highlighted several issues that have to be solved in the near-future research, to facilitate large-scale application of the immobilized oxidoreductases in wastewater treatment.


Ethnomusic ◽  
2018 ◽  
Vol 14 (1) ◽  
pp. 142-177
Author(s):  
Jarema Pavliv ◽  

In the offered article, a comparative analysis of two performing versions of the wedding ceremonial dance “Hutsulka”, dominant in the Eastern Carpathians region of Ukraine has been made, with outstanding violinists-capellists, which, based on traditions and their own virtuoso style, developed this dance genre due to the accumulation of stable and mobile elements of melo-, rhythm- and form-making, as well as the establishment of aesthetics of regional styles. The material for the study was the audio version of the “Hutsulka” recorded on the basis of the performance of two violinists representing the region of Kosmach- Brusturiv villages tradition – Kyrylo Lyndiuk (“Vityshyn”, 1929–2003) (recorded by prof. Bogdan Lukaniuk in 1991) and Ivan Sokoliuk (born in 1944; Musician's own recording of 2017) – and transcribed by the author of the article. The performance of “Hutsulka” by each violinist is characteristic of common and distinctive features concerning the formation of the variative composition, the thematic material (respectively, 29 and 43 themes of kolomyika, kozachok and voloshka bases), tonality and rhythmic structuring, individual interpretation of ornamentation, which is collectively connected with artistic orientation on certain artistic and performing directions, presented by iconic musicians-predecessors. The formal features of the Hutsulka composition depends on scenery where it is performed (1); the tonality outline determined by established regional tradition (2), and rhythmic outline, by the overall style, varyation technics, updating and ornamentation of rhythmic formulas, characteristic of the personal manner and style of the performer (3). Ornamentation, as the essence of the performing style of any Hutsul musician, in K. “Vityshyn” is characterized by intense interweaving of short melismatic legal groups and non-legal figurations within melodic line and texture. I. Sokoliuk 166 enriches the linear movement with prolonged melismatic groups and rhythm- intonational and figurational turns that decorate it and amplify the expression of dance overall sonority. In performing aesthetics of K. Lyndiuk prevails an acute articulation of melodic expressiveness with accented and often pointed rhythmic patterns that provides representative-temperamental virtuosity. For strategic performance aesthetics of I. Sokoliuk, rich in virtuosic expressiveness, is characterized by choral and transparent ringing articulation in the context of “stratum”-development creation of the whole large-scale virtuoso composition. Each version reveals individual compositional, improvised, techno-performing, emotional as well as aesthetic mind of their creators. All these qualities, formed by both musicians in a single tradition and expressed in related kolomyika and kozachok-voloshka tunes, present the decision of developmental, composite, rhythmic, intonational, articulation, tempo and many other aspects of style, characteristic of folk violinists – soloists and capellists, inherent to each of them, in their performing manner, evident in “Hutsulka” rendering.


Author(s):  
Gulnoza Sabirovna Sultanova ◽  

In this article, a comparative analysis of creative and innovative thinking in a similar and different way will be made. The peculiarities of creativity and the essence of innovation are considered to be brought up as an object of philosophical research. Within the framework of the theme, it is mentioned about how our young people can use the opportunities created in our country on a large scale, about the achievement of the goals, the pursuit of innovation, creative thinking consisting of creative processes in a specific way and the various methods used in the mobilization of its implementation and their practical opportunities. Also, analytical analysis of the characteristic aspects of innovative thinking was carried out.The essence and essence of creative and innovational thinking, its distinctive features are considered to be brought up as an object of philosophical research. The views on innovation and creative thinking were also analyzed comparatively. In particular, it is noted that the formation of creative and innovative thinking is a period demand as well as a social need.


2017 ◽  
Vol 18 (02) ◽  
pp. 64-77
Author(s):  
Suhardin Suhardin

  The objective of this research is to know the diffrences of environmental concern as well as to find out the relionship between basic concept of ecology knowledge with environmental concern among  male and female students. The Comparative Analysis was conducted in SMA Depok involving 96 students chosen by using purposive random sampling.The data analysis and interpretation indicated that: 1. There is significant correlation in students basic concepts of ecology knowledge between with the environmental concerns, 2. There is verry significant difference students among male and female environmental concerns  3. There is significant correlation in male students basic concepts of ecology knowledge between with the environmental concerns, 4. There is significant correlation in female students  basic concepts of ecology knowledge between with the environmental concerns.


2004 ◽  
Vol 13 (03) ◽  
pp. 391-502 ◽  
Author(s):  
MASSIMO GIOVANNINI

Cosmology, high-energy physics and astrophysics are today converging to the study of large scale magnetic fields. While the experimental evidence for the existence of large scale magnetization in galaxies, clusters and super-clusters is rather compelling, the origin of the phenomenon remains puzzling especially in light of the most recent observations. The purpose of the present review is to describe the physical motivations and the open theoretical problems related to the existence of large scale magnetic fields.


We made hygienic assessment of the atmospheric air quality of the observation territory and comparison according to monitoring and field observations, carried out a comparative analysis of the respiratory system diseases morbidity of the child population according to the form of federal statistical observation and actual attendance for medical care for 2014–2017, evaluated the relationship of respiratory system diseases morbidity with the effects of the studied chemical factors. Atmospheric air poor quality for a number of substances has been established in the residential development of the observation territory. An increased morbidity rate of respiratory system diseases and certain nosological forms (chronic diseases of the tonsils and adenoids and bronchial asthma) in areas with stable atmospheric air pollution by emission components of large-scale alumina production has been established as a result of a comparative analysis of morbidity rates. We proved the dependence of the occurrence probability of additional cases of respiratory system diseases on the content in the atmospheric air of suspended solids, fine PM10, PM2.5 fractions, nitrogen dioxide, aluminum, manganese, solid and gaseous fluorides, chromium.


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