Biological decolorization of the reactive dyes Reactive Black 5 by a novel isolated bacterial strain Enterobacter sp. EC3

2009 ◽  
Vol 171 (1-3) ◽  
pp. 654-659 ◽  
Author(s):  
Hui Wang ◽  
Xiao-Wei Zheng ◽  
Jian-Qiang Su ◽  
Yun Tian ◽  
Xiao-Jing Xiong ◽  
...  
Keyword(s):  
Bacterial Strain ◽  
Reactive Dyes ◽  
Reactive Black 5

Synthetic Batik Wastewater Pretreatment Progress by Using Physical Treatment

2012 ◽  
Vol 627 ◽  
pp. 394-398 ◽  
Author(s):  
Hamid Reza Rashidi ◽  
Nik Meriam Sulaiman ◽  
Nur Awanis Hashim ◽  
Che Rosmani Che Hassan
Keyword(s):  
Sodium Silicate ◽  
Removal Efficiency ◽  
Membrane Filtration ◽  
Reactive Dyes ◽  
Manufacturing Industries ◽  
Treatment System ◽  
Reactive Black 5 ◽  
Physical Treatment ◽  
Different Types ◽  
Remazol Red

One of the most important manufacturing industries in Malaysia is textile and specifically batik making. Many local batik factories discharge their wastewater, which contains wax, resin, silicate and dyes, without treatment, directly to nature. A possible treatment system involving membrane filtration has been tested to remove the dyes. However the presence of wax the wastewater requires a pretreatment stage to remove the undesired wax. In this study the performance of baffle tank pretreatment (own designed and fabricated) was evaluated for 4 different types of synthetic batik wastewater, which contain wax, resin, sodium silicate and 4 different fibers reactive dyes namely, Remazol Turquoise Blue G133 (Blue 21), Remazol Red 194 and Remazol Yellow 14 and Reactive black 5. The removal efficiency (%), pH and COD of each sample were evaluated and recorded. Wax removal efficiency in all samples was more than 88%. The COD and pH of all samples decreased after 60 minutes pretreatment cycle.

scholarly journals Decolorization of Reactive Dyes from Aqueous Solution Using Combined Coagulation-Flocculation and Photochemical Oxidation (UV/H₂O₂)

2020 ◽  
pp. 51-61 ◽  
Author(s):  
M Z Bin Mukhlish ◽  
Maksudur Rahman Khan ◽  
M S Islam ◽  
M I Nazir ◽  
J S Snigdha ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Process Parameters ◽  
Environmental Concern ◽  
Uv Light ◽  
Reactive Dyes ◽  
Photochemical Oxidation ◽  
Reactive Black 5 ◽  
Treatment Technique ◽  
Uv Light Irradiation ◽  
Reactive Orange

Removal of reactive dyes from wastewater is a great environmental concern. Attempts were made to study the performance of a coupling process of coagulation-flocculation (CF) and photochemical oxidation (PCO) for the removal of two reactive dyes (Reactive Black 5 (RB 5) and Reactive Orange 12 (RO 12)) from aqueous solution. The CF experiments were conducted using alum as coagulant and polyacrylamide as coagulant aid whereas the PCO tests were carried out using H2O2 in the presence of UV light irradiation. Effects of various process parameters such as pH, coagulant dose and coagulant aid dose on the CF process, and H2O2 dose and UV exposure time on the PCO method have been studied. The study reveals that only the CF process is not sufficient to treat the dye solution. The CF step could remove 52.30% and 41.38% of RB 5 and RO 12, respectively. At the best conditions of process parameters, the combined CF-PCO method results in color removals of 87.10% and 82.53% for RB 5 and RO 12, respectively. The combined process of CF and UV/H2O2 may be a useful treatment technique for wastewater contaminated with reactive dyes.

Synthesis of a novel tetrakisazo navy-blue reactive dye based on DSD acid and its synergistic blackening property

2015 ◽  
Vol 44 (6) ◽  
pp. 386-391 ◽  
Author(s):  
Aiqin Gao ◽  
Hongjuan Zhang ◽  
Kongliang Xie
Keyword(s):  
Cotton Fabric ◽  
Research Work ◽  
Reactive Dyes ◽  
Reactive Dye ◽  
Original Research ◽  
Reactive Black 5 ◽  
The Novel ◽  
Fastness Properties ◽  
Content Type ◽  
Absorbance Spectra

Purpose – The purpose of this paper is to synthesise a tetrakisazo reactive dye and to characterise its dyeing property to meet the demand for better black reactive dyes. Design/methodology/approach – The novel tetrakisazo navy-blue reactive dye based on 4,4′-diaminostilbene-2,2′-disulphonic acid was designed and synthesized. The dyeing behaviour of it on cotton fabric was discussed. The synergistic blackening effect and absorbance spectra were investigated by absorbance and reflectance spectra, K/S and colorimetric data. Findings – The exhaustion and fixation of the designed reactive dye were higher than 20 per cent than those of the commercial reactive dye, CI Reactive Black 5. The novel reactive dye has complementary with Reactive Red SPB and Reactive Yellow C-5R in absorbance spectra from 360 to 700 nm. Three reactive dyes had synergistic effect in colour deepening properties. The dyed cotton fabric possessed high K/S value and low reflectance in the whole visual spectrum range from 360 to 700 nm. Practical implications – Comparison with the commercial Reactive Black DN-RN, the blackness of the dyed fabrics with the mixture dyes was greatly improved and the fastness properties on cotton fabrics were also good. Originality/value – The paper is an original research work. Because the mixture dyes had better blackness and good fastness properties, it would have wide application in the dyeing of cotton fabric.

Biodecolorization of reactive black-5 by a metal and salt tolerant bacterial strain Pseudomonas sp. RA20 isolated from Paharang drain effluents in Pakistan

2013 ◽  
Vol 98 ◽  
pp. 331-338 ◽  
Author(s):  
Sabir Hussain ◽  
Zahid Maqbool ◽  
Shafaqat Ali ◽  
Tahira Yasmeen ◽  
Muhammad Imran ◽  
...  
Keyword(s):  
Bacterial Strain ◽  
Reactive Black 5 ◽  
Pseudomonas Sp ◽  
Salt Tolerant

scholarly journals Adsorption of Reactive Dyes by Palm Kernel Shell Activated Carbon: Application of Film Surface and Film Pore Diffusion Models

2009 ◽  
Vol 6 (4) ◽  
pp. 949-954 ◽  
Author(s):  
M. M. Nourouzi ◽  
T. G. Chuah ◽  
Thomas S. Y. Choong
Keyword(s):  
Activated Carbon ◽  
Palm Kernel ◽  
Reactive Dyes ◽  
Film Surface ◽  
Diffusion Models ◽  
Pore Diffusion ◽  
Reactive Black 5 ◽  
Palm Kernel Shell ◽  
Adsorbate Concentration ◽  
Model Film

The rate of adsorption of two reactive dyes, Reactive Black 5 and Reactive Red E onto palm kernel shell-based activated carbon was studied. The experiment was carried out to investigate three models: film diffusion model, film-surface and film-pore diffusion models. The results showed that the external coefficients of mass transfer decreased with increasing of initial adsorbate concentration. In addition, it was found that the adsorption process was better described by using the two resistance models,i.e. film-surface diffusion.

scholarly journals THE INFLUENCE OF CHITIN AMINATION ON THE EFFECTIVENESS OF RB5 AND RY84 DYE SORPTION

2018 ◽  
Vol XXIII ◽  
pp. 66-75
Author(s):  
Urszula Filipkowska ◽  
Tomasz Jóźwiak ◽  
Paula Bugajska ◽  
Małgorzata Kuczajowska-Zadrożna
Keyword(s):  
Experimental Data ◽  
Molecular Weight ◽  
Sorption Capacity ◽  
Reactive Dyes ◽  
Adsorptive Capacity ◽  
Reactive Black 5 ◽  
Maximum Sorption Capacity ◽  
Dye Sorption ◽  
Maximum Sorption ◽  
Optimal Ph

This article presents the influence of chitin amination on the effectiveness of RB5 and RY84 dye sorption. For chitin and chitin modified by amination, the optimal pH of sorption and the maximum sorption capacity were determined in relation to two reactive dyes: Reactive Black 5 (RB5) and Reactive Yellow 84 (RY84), differing in the active group and molecular weight. Three sorption models were used to describe the experimental data: Langmuir, Langmuir 2 and Freundlich. The highest sorption capacity was obtained for aminated chitin for both tested dyes: 386.53 mg/g for RB5 and 261.56 mg/g for RY84. In the case of sorption on unmodified chitin, the sorption capacities were lower: up to 235.65 mg/g.d.m. for RB5 and 208.88 mg/g.d.m. for RY84. The modification of chitin by amination has a beneficial effect on the amount of dye adsorbed in the process. The adsorptive capacity increased by 1.6-times in the case of RB5 and 1.25-times in case of RY84.

High-Resolution Mass Spectrometry Analysis of Reactive Dye Derivatives Removed from Biodegraded Dyed Cotton by Chemical and Enzymatic Methods

2020 ◽  
Vol 7 (1) ◽  
pp. 9-18 ◽  
Author(s):  
Chengcheng Feng ◽  
Nadia Sultana ◽  
Xinyi Sui ◽  
Yufei Chen ◽  
Evie Brooks ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Resolution ◽  
High Resolution Mass Spectrometry ◽  
Reactive Dyes ◽  
Reactive Dye ◽  
Cotton Fabrics ◽  
Mass Spectrometry Analysis ◽  
Reactive Black 5 ◽  
High Resolution Mass ◽  
Resolution Mass

The purpose of this study was to determine and characterize the biodegradation of reactive dyes on cotton jersey fabrics buried in soil. Four commonly-used reactive dyes, C. I. Reactive Black 5 (RBlk5), C. I. Reactive Red 198 (RR198), C. I. Reactive Blue 49 (RB49), and C. I. Reactive Orange 35 (RO35), were used in this study. Degradation products were characterized and proposed based on high-performance liquid chromatography (HPLC) coupled with high-resolution mass spectrometry (HRMS). A chemical method and an enzymatic digestion were developed and used to remove the reactive dye from the control and degraded cotton fabrics. Hydrolyzed reactive dyes and reactive dyes having cellobiose units were synthesized and used as standards for comparison in this study. The possible degradation mechanism pathways of the reactive dyes bonded to cotton fabrics depends on the chemical structure of each dye.

scholarly journals Adsorption of reactive dyes onto chitosan/montmorillonite intercalated composite: multi-response optimization, kinetic, isotherm and thermodynamic study

2018 ◽  
Vol 77 (11) ◽  
pp. 2598-2612 ◽  
Author(s):  
J. Li ◽  
J. Cai ◽  
L. Zhong ◽  
H. Wang ◽  
H. Cheng ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Reactive Dyes ◽  
Reactive Black 5 ◽  
Solution Ph ◽  
Initial Concentration ◽  
Adsorption Behaviors ◽  
Adsorption Condition ◽  
Response Optimization ◽  
Grey Relational ◽  
Kinetics And Isotherms

Abstract Chitosan/montmorillonite intercalated composite (CTS/MMT) was used as an effective adsorbent for removal of reactive dyes, i.e. Reactive Black 5 (RB5), Reactive Red 136 (RR136), Reactive Yellow 145 (RY145) and Reactive Blue 222 (RB222). Taguchi method attached grey relational analysis was applied to determine the optimal adsorption conditions, including pH, initial concentration of dye, temperature, adsorbent dosage and contact time, for achieving simultaneous maximization of removal percentage and adsorption capacity. The percentage contribution of each adsorption condition was determined in the analysis of variance and showed that the most effective parameter in removal of RB5, RY145 and RB222 is the dye solution pH, whereas the initial concentration was the determining factor for optimum efficiency for the dye RR136. Under respective optimal condition, the removal percentages and adsorption capacity of four reactive dyes onto CTS/MMT were both found in the following order: RR136 > RY145 > RB5 > RB222. The maximum removal percentages of 78.8 and 49.5%, and the adsorption capacity of 315.20 and 123.75 mg/g were obtained for RR136 and RB222, respectively. The adsorption behaviors showed that the adsorption kinetics and isotherms were in best agreement with Avrami fractionary order model and the Toth isotherm, respectively.

scholarly journals Production of Ligninolytic Enzymes by White-Rot FungusDatroniasp. KAPI0039 and Their Application for Reactive Dye Removal

2010 ◽  
Vol 2010 ◽  
pp. 1-6 ◽  
Author(s):  
Pilanee Vaithanomsat ◽  
Waraporn Apiwatanapiwat ◽  
Oncheera Petchoy ◽  
Jirawate Chedchant
Keyword(s):  
Lignin Degradation ◽  
Reactive Dyes ◽  
Ligninolytic Enzymes ◽  
Reactive Dye ◽  
Inoculum Size ◽  
White Rot ◽  
White Rot Fungus ◽  
Reactive Black 5 ◽  
Reactive Blue 19 ◽  
Fungal Inoculum

This study focused on decolorization of 2 reactive dyes; Reactive Blue 19 (RBBR) and Reactive Black 5 (RB5), by selected white-rot fungusDatroniasp. KAPI0039. The effects of reactive dye concentration, fungal inoculum size as well as pH were studied. Samples were periodically collected for the measurement of color unit, Laccase (Lac), Manganese Peroxidase (MnP), and Lignin Peroxidase (LiP) activity. Eighty-six percent of 1,000 mg L−1RBBR decolorization was achieved by 2% (w/v)Datroniasp. KAPI0039 at pH 5. The highest Lac activity (759.81 UL−1) was detected in the optimal condition. For RB5,Datroniasp. KAPI0039 efficiently performed (88.01% decolorization) at 2% (w/v) fungal inoculum size for the reduction of 600 mg L−1RB5 under pH 5. The highest Lac activity (178.57 UL−1) was detected, whereas the activity of MnP and LiP was absent during this hour. The result, therefore, indicated thatDatroniasp. KAPI0039 was obviously able to breakdown both reactive dyes, and Lac was considered as a major lignin-degradation enzyme in this reaction.

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