Microbial Treatment for Removing Synthetic Dyes from Industrial Effluents

Many natural and synthetic dyes present in industrial effluents are resistant to degradation by conventional treatments. Decolorization of indigo carmine were carried out using a newly isolated ligninolytic fungus strain Ganoderma weberianum TZC1. This strain was shown to decolorize indigo carmine efficiently; the optimal pH and temperature were pH 5.0 and 33°C. A decolorization efficiency of 93% was achieved by cultivation for 1 h at an initial dye concentration of 20 mg/L. Furthermore, G. weberianum was shown to be used efficiently and repeatedly in repeated-batch decolorization operations with the mycelia pellets at the different ages. Our results suggest that G. weberianum has promising applications in dye-containing wastewater decolorization.

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Microbial Decolorization of Synthetic Dyes and Reactive Dyes of Industrial Effluents by Using a Novel FungusAspergillus proliferans

Water Environment Research ◽

10.2175/106143011x12928814444655 ◽

2011 ◽

Vol 83 (11) ◽

pp. 2099-2106 ◽

Cited By ~ 2

Author(s):

Paulraj Kanmani ◽

R. Satish kumar ◽

N. Yuvaraj ◽

K. A. Paari ◽

V. Pattukumar ◽

...

Keyword(s):

Reactive Dyes ◽

Industrial Effluents ◽

Synthetic Dyes ◽

Microbial Decolorization

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Decolourization of congo red synthetic dyes by dark septate endophytes

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/948/1/012073 ◽

2021 ◽

Vol 948 (1) ◽

pp. 012073

Author(s):

I Melati ◽

G Rahayu ◽

Surono ◽

H Effendi ◽

C Henny

Keyword(s):

Congo Red ◽

Ligninolytic Enzymes ◽

Industrial Effluents ◽

Ligninolytic Enzyme ◽

Dark Septate Endophytes ◽

Synthetic Dyes ◽

First Report ◽

Significant Difference ◽

Dry Biomass ◽

Dye Decolourization

Abstract The use of fungi is known to be an eco-friendly and cost-competitive approach to degrade synthetic dyes such as Congo Red (CR) in industrial effluents. This research aimed to evaluate the potential of dark septate endophytes (DSE) fungi in decolourizing CR synthetic dyes. Two DSE strains, namely CPP and KSP, were studied to decolourize 50 mgL−1 CR based on the capability to produce the ligninolytic enzyme, dye decolourization efficiency, decolourization index, and fungal dry biomass weight after 7 and 14 days of incubation. CR decolourization was monitored spectrophotometry at 495 nm. The result indicated that CPP and KSP were successfully decolourized CR dye up to 97.00% and 85.00%, respectively, with decolourization index of 1.37 and 1.36 within 14 days. There is no significant difference in DSE growth with and without the addition of CR dye. In addition, these two DSE fungi (CPP and KSP) are able to produce ligninolytic enzymes. The results indicated that the DSE are potential to be used as decolourization agents for azo synthetic dyes. This is the first report on the ability of DSE to decolourize azo synthetic dyes.

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Impact of Textile Dyes on Human Health and Environment

Impact of Textile Dyes on Public Health and the Environment - Advances in Human Services and Public Health ◽

10.4018/978-1-7998-0311-9.ch008 ◽

2020 ◽

pp. 162-169

Author(s):

Javid Manzoor ◽

Manoj Sharma

Keyword(s):

Heavy Metals ◽

Textile Industry ◽

Industrial Effluents ◽

Soil Productivity ◽

Synthetic Dyes ◽

Vat Dyes ◽

Wide Range ◽

Chromium Compounds ◽

Main Attraction ◽

Copper Arsenic

The textile industry is one of the important industries that generates a large amount of industrial effluents. Color is the main attraction of any fabric. Manufacture and use of synthetic dyes for fabric dyeing has therefore become a massive industry. Synthetic dyes have provided a wide range of colorfast, bright hues. However, their toxic nature has become a cause of grave concern to environmentalists. Use of synthetic dyes has an adverse effect on all forms of life. Presence of sulphur, naphthol, vat dyes, nitrates, acetic acid, soaps, enzymes chromium compounds, and heavy metals like copper, arsenic, lead, cadmium, mercury, nickel, and cobalt and certain auxiliary chemicals all collectively make the textile effluent highly toxic. These organic materials react with many disinfectants, especially chlorine, and form byproducts (DBPs) that are often carcinogenic and therefore undesirable. This effluent, if allowed to flow in the fields, clogs the pores of the soil resulting in loss of soil productivity. This chapter gives an overview on the health and environmental impact of dyes.

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Textile Dyeing Effluents and Environment Concerns - A Review

Journal of Environmental Science and Natural Resources ◽

10.3329/jesnr.v11i1-2.43380 ◽

2019 ◽

Vol 11 (1-2) ◽

pp. 131-144 ◽

Cited By ~ 1

Author(s):

MR Islam ◽

MG Mostafa

Keyword(s):

Environmental Pollution ◽

Industrial Effluents ◽

Reactive Dye ◽

Industrial Processes ◽

Textile Dye ◽

Synthetic Dyes ◽

Textile Dyeing ◽

Dyeing Effluent ◽

Textile Sector ◽

Removal System

Textile dyeing effluent is considered as one of the most environmentally unfriendly industrial processes. The study aimed to review the different types of textile dyes use in the industrial processes and their contribution to environmental pollution in South Asian countries. The article was prepared to compile all present data from different journals and website on textile dyeing effluents characterization in South Asia. A wide variety of synthetic dyes like azo dye, vat, reactive dye, disperse dye, etc. widely used in the textile sector. The result showed that some physicochemical parameters of the dyeing effluents (COD, TDS and BOD) exceeded their standard limits. The industrial effluents are affecting the main devastation to the aquaculture, agriculture, ecology, environment, and public health since the development of textile dyeing industries in these countries. Now a day, its proper supervision and curative measures like removal system have become the furthermost thoughtful tasks all over the world and the developing and transition economies countries in particular. It is imperative to take immediate steps to reduce the environmental pollution due to discharge the untreated textile dye effluents. J. Environ. Sci. & Natural Resources, 11(1-2): 131-144 2018

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HPLC detection of synthetic dyes in residual waters from wastewater treatment using adsorption on magnetic materials

Romanian Journal of Ecology & Environmental Chemistry ◽

10.21698/rjeec.2020.203 ◽

2020 ◽

Vol 2 (2) ◽

pp. 22-29

Author(s):

Alina Tatarus ◽

Claudia Maria Simionescu ◽

Roxana Elena Scutariu ◽

Vasile Ion Iancu ◽

Florinela Pirvu ◽

...

Keyword(s):

Magnetic Material ◽

Wastewater Treatment ◽

Congo Red ◽

Cobalt Ferrite ◽

Skin Irritation ◽

Industrial Effluents ◽

Hplc Method ◽

Precipitation Method ◽

Synthetic Dyes ◽

Solution Ph

Surface water contamination by synthetic dyes generates human and wildlife adverse health effects and causes photosynthesis decrease due to intense sun-light absorption of these pollutants. 50% of total discharged industrial effluents contain azo dyes. Congo Red is a benzidine based anionic azo dye that is usually employed in rubber, paper and plastic industries. Congo Red can cause eye and skin irritation and is potentially carcinogenic in nature. This study explores the development of a new HPLC method to detect synthetic dyes in residual waters coming from wastewater treatment technologies based on magnetic material adsorption. Cobalt ferrite (CoFe2O4) and chitosan-coated cobalt ferrite (CoFe2O4-Chit) prepared by a simple co-precipitation method were tested as adsorbents for Congo Red (CR). Effect of contact time, solution pH, and initial dye concentration were studied with respect to Congo Red adsorption efficiency. The adsorption experiments were performed at pH = 4.5 and 10.8. The highest value for the removal efficiency using the magnetic material of cobalt ferrite coated with chitosan (CoFe2O4-Chit) was obtained at pH 10.8.

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Fixed-bed Adsorption of Congo red dye and Bisphenol A from solution onto surfactant modified walnut shell

10.21203/rs.3.rs-243098/v1 ◽

2021 ◽

Author(s):

Evans Dovi ◽

Aaron Albert Aryee ◽

Alexander Nti Kani ◽

Farid Mzee Mpatani ◽

Jianjun Li ◽

...

Keyword(s):

Flow Rate ◽

Endocrine Disrupting Chemicals ◽

Fixed Bed ◽

Industrial Effluents ◽

Environmental Safety ◽

Low Flow ◽

Walnut Shell ◽

Synthetic Dyes ◽

Living Organisms ◽

Agricultural Byproduct

Abstract Wastewater stemming from industries may contain pollutants such as synthetic dyes and endocrine-disrupting chemicals which are known to be harmful to living organisms. Therefore, to safeguard the wellbeing of humankind and environmental safety, it is imperative for industrial effluents to be sanitized before their discharged into water bodies. Furthermore, to explore the utilization of agricultural byproduct is valuable to study. To achieve this, a Cetyltrimethylammonium bromide functionalized Walnut shells (WNS-CTAB) were prepared to remove pollutants in column approach. The column work was carried out for diverse working conditions. There is in favor of adsorption at low influent pollutant concentration, low flow rate or high bed depth. As the highest breakthrough time of 113 and 23 min at flow rate 6 mL min −1 was recorded for both CR and BPA, respectively, the Yan’s kinetic model best described the breakthrough curve. The adsorbent showed better regeneration capabilities; accordingly can offer practical use for adsorption of CR and BPA from wastewaters.

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Biodecolorization and Biodegradation of Dyes: A Review

The Open Biotechnology Journal ◽

10.2174/1874070702115010097 ◽

2021 ◽

Vol 15 (1) ◽

pp. 97-108

Author(s):

Ashwini Rane ◽

Sanket J. Joshi

Keyword(s):

Review Paper ◽

Industrial Effluents ◽

Cost Effective ◽

Great Difficulty ◽

Synthetic Dyes ◽

Biological Processes ◽

Treatment Processes ◽

Physico Chemical ◽

Immobilization Techniques ◽

Modelling Methods

Dyes are one of the most widely used chemical substances in day-to-day life, including in different industries. Dye manufacturers, as well as users, are experiencing great difficulty in complying with stringent regulations on wastewater containing dyes and derivatives. Most of the industries still use age-old technology and machinery and thus find it difficult to cope with the change in the scenario of current stringent environmental regulations on disposable limits, which are improvised by pollution control boards. The inherent difficulties because of technical inadequacies during dyeing result in a large amount of dyestuff getting directly lost to the industrial effluents. Synthetic dyes are quite stable recalcitrant compounds. Henceforth, the release of dyes poses an ecotoxic hazard and potential danger of bioaccumulation, eventually affecting flora and fauna. Huge quantities of water consumption generate large volumes of highly contaminated effluents. Conventional treatment processes have limitations in the color removal from wastewater. Although physico-chemical techniques are practiced, it still suffers from the ‘economy-to-scale of application’ paradigm and generation of polluting and toxic byproducts, posing disposal problems. In contrast, biological processes involving microbes, plants, or their products (such as enzymes) are touted as alternate cost-effective methods for decolorization and degradation of such synthetic dyes, albeit with limited full-scale successful applications. Biodegradation of such xenobiotics has been the topic of research for over two decades, with limited success because of the production of toxic secondary metabolites and byproducts. This review paper is an effort towards discussing the importance of biodecolorization and biodegradation of dyes, with emphasis on some recent updates such as immobilization techniques and in-silico modelling methods and future possibilities.

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Adsorptive removal of malachite green dye from aqueous solution onto activated carbon of Catha edulis stem as a low cost bio-adsorbent

10.21203/rs.3.rs-35247/v1 ◽

2020 ◽

Author(s):

Gietu yirga Abate ◽

Adugna Nigatu Alene ◽

Adere Tarekegne Habte ◽

Desiew Mekuanint Getahun

Keyword(s):

Activated Carbon ◽

Low Cost ◽

Aqueous Media ◽

Freundlich Isotherm ◽

Industrial Effluents ◽

Aqueous System ◽

Isotherm Models ◽

Synthetic Dyes ◽

Order Kinetic ◽

Catha Edulis

Abstract Background: The release of hazardous synthetic dyes into industrial effluents has emerged as an environmental problem requiring remediation. The present study focused on the preparation of a new and environmentally-friendly material (adsorbent) for the remediation of aqueous media containing dye. The low cost adsorbent was prepared from locally available khat (Catha edulis) stem which considered as waste and accumulated on waste disposal areas of woldia town, Ethiopia. Comprehensive characterization studies were carried out on the bio-adsorbent such as proximate analyses, specific surface area, and Fourier-Transform Infrared (FTIR) spectroscopy (which shows functional groups on adsorbents surface). Results: The proximate analysis shows the prepared adsorbent has very high fixed carbon content (83.65%), which refers to high quality of the adsorbent. The adsorption performance of the prepared activated carbon was optimize by varying operating parameters such as initial dye concentration (10 mg/L), pH (10), dosage (0.5 g), and contact time (60 min). The maximum removal efficiency of the prepared adsorbent at those optimum conditions was 98.8%. The experimental data was tested by most common kinetics and isotherm models. It was observed that the pseudo-second-order kinetic model fits better with good correlation coefficient and the equilibrium data fitted well with the Freundlich isotherm model. Conclusion: In summery this study demonstrated that the waste bio sorbent could be employed as an effective and eco-friendly alternative for the cleanup of dye-polluted aqueous system.

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