The theme of present research demonstrates performance of copper ii sulfate cuso4 as catalyst in thermolysis process to treat reactive black 5 rb 5 dye. Removal of reactive black 5 azo dye from aqueous solutions by. Combinations of sequential anaerobic and aerobic process enhance the treatment of textile wastewater. Biodegradation pathway and detoxification of the diazo dye. Various factors affecting adsorption of rb 5 aqueous solutions such as ph, initial concentration, contact time, dose of nanoparticles, and temperature were analyzed at fixed solidsolution ratio. Photocatalytic degradation of two commercial reactive dyes. Synthetic dyeing effluents containing a reactive dye c. The results obtained showed that the protein precipitate containing 450 u l. This dye is also extensively used in cosmetics, food additives, ink and paint. Pdf removal of reactive black 5 dye from aqueous solutions by.
Removal of reactive blue 19 dye from aqueous solution using. The effluents discharged from textile, paper, printing, and leather industries contain a large variety of reactive dyes, and these dyes are of great environmental concern due to their huge applications and toxic nature. Celebioglu,cd omer faruk sarioglu,cd alper devrim ozkan,cd tamer uyarcd and turgay tekinaybe a contaminant resistant lysinibacillus sp. The solution of reactive black 5 with the concentration of mgl was prepared using the distilled water, and the. Wei tze mook, a mohamed kheireddine aroua, a, and malgorzata szlachta b. Naphtol dyes are the cheapest up to 40% to use in comparison with reactive dyes procion, drimarenek, remazol etc. Degradation of azo dye reactive black 5 and acid orange 7 by. The decolouration of the diazo dye reactive black 5 rb5 c 26 h 21 n 5 na 4 o 19 s 6.
A novel and effective lowcost adsorbent for the removal of the diazo dye reactive black 5 from aqueous solutions. Pdf mineralization of diazo dye reactive black 5 in. Removal of reactive black 5 dye from aqueous solutions by. Orange 7 and reactive black 5 as an indicator of synthetic dyes by fentonlike reaction were studied. Through mineralization, these dye can be broken down into an aromatic amine, an arylamine that is suspected to be carcinogenic. Removal of textile dye reactive black 5 from aqueous solution. Jun 28, 20 biodegradation of azo dyes is difficult due to their complex structures and low bod to cod ratios. Palm shellbased activated carbon for removing reactive black. Reactive black 5 is a representative diazo dye found in textile wastewaters and several aops. The photocatalytic degradation pcd of three commercially textile dyes, namely alizarin cyanine green g acg, reactive red 195 rr195 and reactive black 5 rb5 has been investigated using tio2 degussa p25 photocatalyst in aqueous solution under uv light. Reactive black b sharda international reactive black b global colors inc.
In this paper, potential adsorbents based on the functionalization of solid waste from leather in the. The dye stock solution was prepared by weighing 1 gram of reactive black 5 dye crystals and dissolved the crystals in one litre of deionised water. Batch experiments were carried out to investigate the processs optimal operational. Decolorization of reactive black 5 by yarrowia l ipolytica. In the present study, the decolorization and degradation of reactive black 5 azo dye was investigated by biological, photocatalytic uvtio2 and combined processes. Reactive blue 7 rb7 until uncolored species were obtained. Size and structure characterization of dye flocs during. The functional group of the dye forms a covalent link with substrate. Palm shellbased activated carbon for removing reactive black 5 dye.
Azo reactive dyes represent about 50% of all reactive dyes, and azo dyes are known to be toxic, carcinogenic and mutagenic. Pdf simultaneous production of laccase and decolouration. Step 1 is the conversion of an aromatic amine to a diazo compound i. Stock solutions 2 gl in water were stored in the dark at room temperature. Removal of reactive black 5 azo dye from aqueous solutions. Amin, removal of direct blue106 dye from aqueous solution using new activated carbons developed from pomegranate peel. Its decolorization by laccase and natural mediators 50. Performance and kinetic study on bioremediation of diazo dye reactive black 5 in wastewater using spent gacbiofilm sequencing batch reactor. Electrochemical degradation of remazol black b dye effluent. Reactive black 5 from aqueous solutions was investigated using the mixed silicaalumina oxides including of 4% sio2 and 96% al2o3 as well. Firstorder rate constant k, r2 values, and halflife t 12 of rb5 decolorization. They are a commercially important family of azo compounds, i. Photodegradation of reactive black5 dye rb5 in wastewater.
Reactive black 5, reactive black 5, remazol black 5, reactive black b, remazol black b, drimaren black rk3b. Reactive black 5 is a reactive dye belonging to vinyl sulphone type. The optimum conditions such as initial ph, glucose concentration, nitrogen concentration and initial dye concentration were determined. Decolourisation of reactive black 5 using paenibacillus sp. Pdf background textile wastewater contains a significant amount of bio dye compounds including reactive black 5 rb5 as an azo dye that causes. Pdf high efficiency decolorization of azo dye reactive black 5 by. The aim of this study was to investigate the treatment of diazo dye reactive black 5 rb5containing wastewater using granular activated carbon gacbiofilm sequencing batch reactor sbr as an integration of aerobic and anaerobic process in a single reactor. Reactive black 5 advanced oxidation processes aop have been used as an alternative way to textile wastewater treatment, mainly in order to reduce color and organic load. The leather industry produces a high yield of solid hazardous wastes that generate a major impact on the environment. Dec 23, 2017 the theme of present research demonstrates performance of copper ii sulfate cuso4 as catalyst in thermolysis process to treat reactive black 5 rb 5 dye. Biodegradation of the diazo dye reactive black 5 by a wild. Study of removal techniques for azo dyes by biosorption. Black 5 is a representative diazo dye found in textile wastewaters and several aops.
Reactive black belong to a group of organic compounds. Correlations between decolorization and laccase and manganese peroxidase activities were investigated. Furthermore, dye effluent may contain chemicals, which are toxic, carcinogenic, mutagenic or teratogenic in various microbiologic, fish species 3. In this paper adsorptive removal of hazardous dye c. Its maximum light absorption spectrum is at 597 nm 5. This work looks for a better understanding of the biodegradation of xenobiotic azo dyes mediated by yeasts. The combination of these two 15 techniques improves the quality of the treated effluent with respect to only an electrochemical 16 treatment. Adsorption of reactive black 5 on synthesized titanium.
Decolorization of the azo dye reactive black 5 by fenton and photo. Anion exchange resins as effective sorbents for removal of. Mineralization of diazo dye reactive black 5 in wastewater using recirculated upflow constructed wetland reactor article pdf available in desalination and water treatment 46. The in vivo biodegradation of the diazo dye reactive black 5 rb5 by phanerochaete chrysosporium immobilised on cubes of nylon sponge and on sunflowerseed shells ss in laboratoryscale bioreactors was investigated. Biodegradation of azo dyes is difficult due to their complex structures and low bod to cod ratios. Absorbance measurements were carried out by using a pg. Decolorization of the azo dye reactive black 5 by fenton and. Decolorization of the azo dye reactive black 5 by fenton. The synthesized titanium dioxide nanoparticles tio 2 nps were used as adsorbent to remove reactive black 5 rb 5 in aqueous solution. We tested the precipitates for in vitro decolourisation of orange g, a monoazo dye, and congo red, a diazo dye. Pdf biodegradation of the diazo dye reactive black 5 by. Reactive black 5 belongs to the class of textile azo dyes.
Decolorization of the dye reactive black 5 using fenton oxidation. Hand painting method is at its best for multi coloured tiedyeing. Removal of a reactive dye and hexavalent chromium by a reusable bacteria attached electrospun nano. Diazo black k brenthamine k is a special dyeing salt. Applied over any material dyed with fibre reactive dye, it will react with it and produce black colour. Diazo dye article about diazo dye by the free dictionary. During thermolysis without presence of catalyst, heat was converted to thermal energy to break the enthalpy of chemical structure bonding and only 31. This will result in a mgl or ppm of the reactive black dye. Pdf performance and kinetic study on bioremediation of. Diazo dyes are widely used in industries such as foods, pharmaceuticals, cosmetics, textiles, and leather for coloring purposes or used as a food additive to make products more appetizing, informative, and appealing. Preparation of the synthetic reactive black 5 dye rb5 stock solution. Azo dyes are widely used to treat textiles, leather articles, and some foods.
Such reactive dyes serve as colorants for many industries including paper. In this paper, the potential of two lowcost adsorbents such as sunflower seed shells ss and mandarin peelings mp in the removal of the synthetic anionic dye reactive black 5 rb5 from aqueous solutions was investigated. Removal of reactive black 5 by zerovalent iron modified. Biotransformation of carmoisine and reactive black 5 dyes. Simultaneous production of laccase and decolouration of the diazo dye reactive black 5 in a fixedbed bioreactor. Yarrowia lipolytica nbrc 1658 could decolorize reactive black 5 effectively through biodegradation. This investigation reveals that both methods can remove the color of rb5.
Removal of a reactive dye and hexavalent chromium by a. Evaluated removal of reactive orange 16 ro16 dye from aqueous solution was studied in batch mode by using kenaf core fiber as lowcost adsorbents. Pdf this work studies the degradation of azo dye reactive black 5. Degradation of azo dye reactive black 5 and acid orange 7. It can be biodegraded by the laccase enzyme in ganoderma lucidum. The diazo group is an organic moiety consisting of two linked nitrogen atoms at the terminal position. Photocatalytic degradation of two commercial reactive dyes in. The aim of the paper is to study the removal of the acid, reactive and direct textile dyes such as c. The aim of this work was to modify orange peel op with a cationic surfactant cetyltrimethylammonium bromide, ctab before or after the pretreatment of raw op with sodium hydroxide naoh to enhance the adsorption capacity of the byproduct and to investigate the adsorption of. Reactive black 5 is a representative diazo vinyl sulfone reactive dye and reactive orange 4 is a. In this study, the removal of reactive black 5 rb5 from aqueous solutions has been studied using silica fume sf waste material after its modi. Preparation of the synthetic reactive black 5 dye rb 5 stock solution. With there being over 10,000 different dyes and pigments, the human eye is capable of.
The biosorption data for removal of reactive black 5 were readily modeled using the langmuir adsorption isotherm. Azo dyes are organic compounds bearing the functional group r. Allergic reactions involving the respiratory tract are usually due to interactions between ige antibodies and allergens and occur rapidly. Samples were centrifuged to remove suspended biomass and the concentration of dye in the supernatant was determined by reading absorbance at 590 nm for reactive black 5 and 515 nm for carmoisine. Evaluation of fenton oxidation process coupled with. In the presence of various auxiliary dye chemicals, a typical remazol black simulated exhausted dyebath liquor was treated electrochemically in various basic electrochemical reactor. Decolorization rate constants of the azo dye rb5 were higher than the phtalocyanine rb7 ones.
Acetosyringone and syringaldehyde not only produced the largest amounts of decolorization but. Degradation reaction of diazo reactive black 5 dye with. Activated carbon derived from biomass waste, namely palm shell, was evaluated as a potential adsorbent for the removal of reactive black 5 dye rb5 from an aqueous. The increase in dye concentration increases the number of dye molecules and not the ho radical concentration and so the removal rate decreases. An application of pseudomonas aeruginosa etl2211 in treatment of the synthetic medium containing rb5 indicated complete decolorization of the dye with 200 mgl in less than 24 h. In this work, the removal efficiency of rb5 by ozonation was examined at various operating conditions. Azo dyes account for one of the major source of dye wastes in textile effluent. The ss cultivation led to the best results with a decolouration percentage of 90. Biodegradation of the diazo dye reactive black 5 by a wild isolate of candida oleophila. High efficiency decolorization of azo dye reactive black 5 by caal. Removal of reactive black 5 from aqueous solution by ozone for water reuse in. Photocatalytic degradation of monoazo and diazo dyes in.
Direct blue 71 on the commercially available anion exchangers lewatit monoplus mp 62, lewatit monoplus mp 64, lewatit monoplus mp 500, lewatit monoplus m 500, amberlite ira 67, amberlite ira. Photocatalytic degradation of alizarin cyanine green g. The aim of this work was to modify orange peel op with a cationic surfactant cetyltrimethylammonium bromide, ctab before or after the pretreatment of raw op with sodium hydroxide naoh to enhance the adsorption capacity of the byproduct and to investigate the adsorption of reactive blue 19 rb19 dye on it. Contact time the removal of dye was investigated at time intervals of 30, 60, 90 and 120 min from initial time. Degradation of azo dye reactive black 5 and acid orange 7 by fentonlike mechanism iranian journal of chemical engineering, vol.
Combined application of biologicalphotocatalytic process in. Ligninderived compounds as efficient laccase mediators for. The fast decolorization of monoazo dye ao10 than diazo dye ar114 is an indication that, the number of azo and sulphonate groups in the dye molecule may be a determining factor for increasing the degradation rates. Cloud point extraction of toxic reactive black 5 dye from. Most of the azo dyes are water soluble and readily to absorb through skin contact and inhalation. This study focused on the electrochemical degradation of hydrolyzed remazol black b ci reactive black 5, a common diazo reactive dye, in aqueous solution. Reactive black bclassic dyestuffs inc reactive black b hot printing dayglo color corp.
Kinetic analysis based on both pseudosecondorder and webermorris models indicated intraparticle diffusion was the rate limiting step for biosorption of reactive black 5 on to the biosorbents. Removal of reactive orange 16 dye from aqueous solution by. Abstract this paper deals with results from laboratory scale experiments with model dye effluents comprising of the commercially used textile diazo dye, ci reactive black 5, coagulated with zetag. The most effective methods of dye removal from wastewater are adsorption and the use of enzymes. Performance and kinetic study on bioremediation of diazo dye. Nosk was isolated from a soil sample and its reactive black 5. Reactive black 5 is a diazo dye and widely used in textile, paper and leather industries.