نتایج جستجو برای: decolorization

تعداد نتایج: 1649  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2013
jun bo zhong

photocatalytic decolorization of methyl orange (mo) solution has been studied using phosphotungstic acid (hpa) as photocatalyst. the decolorization reaction of mo solution is photocatalysis. the paper reveals that the optimal loading of photocatalyst for decolorization of mo solution (10 mg/l) is 0.6 g/l. the results show that the photocatalytic decolorization reaction of mo with hpa in a homog...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2007
Tatyana Avramova Lilyana Stefanova Blaga Angelova Sava Mutafov

The effects of the non-ionic surfactant Triton X-100, the cationic surfactant cetyltri-methylammonium bromide (CTAB) and the anionic surfactant sodium N-lauroyl sarcosinate (SLS) on the decolorization of the reaction medium containing the monoazo dye Acid Orange 7 (AO7) by Alcaligenes faecalis and Rhodococcus erythropolis were studied. It was found that the surfactants influenced in different w...

2015
Shahla Rezaei Hamed Tahmasbi Mehdi Mogharabi Alieh Ameri Hamid Forootanfar Mohammad Reza Khoshayand Mohammad Ali Faramarzi

BACKGROUND In recent years, enzymatic-assisted removal of hazardous dyes has been considered as an alternative and eco-friendly method compared to those of physicochemical techniques. The present study was designed in order to obtain the optimal condition for laccase-mediated (purified from the ascomycete Paraconiothyrium variabile) decolorization of Acid Blue 92; a monoazo dye, using response ...

2013
K. D. KAMBLE

Dyes are threat to aquatic as well as human life. These are often introduced in the water bodies from textile or paper industries with improper treatment. Chemical treatments for dye decolorization are quite costly; another disadvantage is decolorization of these dyes is not complete. The bacterial flora in the effluent of textile industries is continuously exposed to dyes. Few of this might be...

2015
Baljinder Kaur Balvir Kumar Neena Garg Navneet Kaur

In the present study, the biobleaching potential of white rot fungus Cordyceps militaris MTCC3936 was investigated. For preliminary screening, decolorization properties of C. militaris were comparatively studied using whole cells in agar-based and liquid culture systems. Preliminary investigation in liquid culture systems revealed 100% decolorization achieved within 3 days of incubation for rea...

1941
D. V. S. Reddy P. B. Sastry

suffering from a deficiency of vitamin C. Portnoy and Wilkinson (1938) confirmed the results obtained by Rotter. They also stated that they found a good correlation between the level of blood ascorbic acid and the decolorization time of the intradermal test in 103 patients. Later, Wright and MacLenathen (1939) who also investigated dietary history and determined blood ascorbic acid levels, gave...

2010
Michelle Reis da Silva Lívian Ribeiro Vasconcelos de Sá Carlos Russo Elita Scio Viridiana Santana Ferreira-Leitão

This work studied the potential use of horseradish peroxidase (HRP) in the decolorization of the following textile dyes: Drimarene Blue X-3LR (DMBLR), Drimarene Blue X-BLN (DMBBLN), Drimarene Rubinol X-3LR (DMR), and Drimarene Blue CL-R (RBBR). Dyes were individually tested in the reaction media containing 120 mg·L(-1), considering the following parameters: temperature (20-45°C), H(2)O(2) conce...

Journal: :Fungal biology 2012
Xu Han Min Zhao Lei Lu Yanhong Liu

Myrothecium verrucaria 3.2190 is a nonligninolytic fungus that produces bilirubin oxidase. Both M. verrucaria and the extracellular bilirubin oxidase were tested for their ability to decolorize indigo carmine. The biosorption and biodegradation of the dye were detected during the process of decolorization; more than 98% decolorization efficiency was achieved after 7 days at 26°C. Additionally, ...

2016
Panpan Yang Wenxiao Shi Hongkai Wang Hongmei Liu

The biodegradation of synthetic dyes by fungi is emerging as an effective and promising approach. In the present study, freshwater fungal strains isolated from submerged woods were screened for the decolorization of 7 synthetic dyes. Subsequently, 13 isolates with high decolorization capability were assessed in a liquid system; they belonged to 9 different fungal species. Several strains exhibi...

2013
Juliette Lambert Maria Maldonado Vega Eloy Isarain-Chavez

The aim of this study was to investigate the feasibility of two decontaminating processes, ozonation and electrocoagulation, to decolorize wastewater generated by humid finishing leather production. With the objective to determine if one or both process could remove color, benchscale experiments were conducted with three different colorants, representative of the main dye groups: di-azo (CI Dir...

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