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Biosorption Of Hexavalent Chromium In A Tannery

Biosorption of hexavalent chromium in a tannery industry

Biosorption Of Hexavalent Chromium In A Tannery Industry

Biosorption model was proposed to simulate the experimental condition for removing chromiumVI in a tannery industry wastewater by all isolated fungi species. The R2 and values of the proposed model predicted that the proposed biosorption model is very much useful for predicting the trend of reduction potential of chromiumVI in a tannery ...

Bioremediation of Hexavalent Chromium by Chromium

Bioremediation Of Hexavalent Chromium By Chromium

Chromium Cr VI has long been known as an environmental hazard that can be reduced from aqueous solutions through bioremediation by living cells. In this study, we investigated the efficiency of reduction and biosorption of Cr VI by chromate resistant bacteria isolated from tannery effluent. From 28 screened Cr VI resistant isolates ...

African Journal of Biotechnology biosorption of

African Journal Of Biotechnology Biosorption Of

Key words Biosorption, chromium VI, Aspergillus niger, Rhizopus nigrican, Penicillium sp., agricultural waste, 1,5 dipheyl carbazide. ampnbsp African Journal of Biotechnology - biosorption of hexavalent chromium chromium vi ion from industrial tannery effluent using filamentous fungi on modified rice husk mediumpotato dextrose medium ...

Biosorption a case study of hexavalent chromium

Biosorption A Case Study Of Hexavalent Chromium

Keywords Biosorption Equilibrium Green technology Kinetics Pomegranate Peel Thermodynamics 1. Introduction Chromium CrVI and chromium CrIII find appli-cation in chrome plating, dyes, pigments, leather tanning and for preserving wood. Among these industries, tannery effluent discharges excess amount of chromium ion to envi - ronment.

Biosorption of Chromium VI Ion from Tannery Waste

Biosorption Of Chromium Vi Ion From Tannery Waste

amount of chromium used in tanning are unreacted. This amount remains in the solid or liquid wastes spent tanning solution or wastewater, which is usually discharged untreated into running water or the like. Generally, chromium exists in natural water in two main oxidation states hexavalent chromium Cr VI and trivalent

Biosorption of Hexavalent Chromium from Aqueous

Biosorption Of Hexavalent Chromium From Aqueous

Apr 03, 2014 The biosorption of hexavalent chromium from aqueous solutions by Opuntia cladodes and ectodermis from cactus fruits was investigated. Both types of biomass are considered low-cost, natural, and ecofriendly biosorbents. Batch experiments were carried out ...

WATER HYACINTH BIOMASS WHB FOR THE

Water Hyacinth Biomass Whb For The

hexavalent chromium is toxic, carcinogenic, and mutagenic in nature, highly mobile in soil and aquatic system, and also is a strong oxidant capable of being adsorbed by the skin Bai and Abraham 2001 Ahalya et al. 2005. It is therefore essential to remove hexavalent chromium from industrial effluents before discharging them into aquatic

A Study on Biosorption Potential of Aspergillus sp of

A Study On Biosorption Potential Of Aspergillus Sp Of

Chromium toxicity is one of the major environmental pollutants. As conventional methods for heavy metal removal are very expensive, bioremediation using fungi is extensively explored. Therefore in the present investigation, out of 23 fungi isolated from tannery effluent, 4 Aspergillus species namely A. terreus, A. tamarii, A. flavus and A. niger were selected for evaluating chromium tolerance ...

PDF Hexavalent chromium removal in a tannery industry

Pdf Hexavalent Chromium Removal In A Tannery Industry

Chromium chemical manufacturing, leather tanning and occurs in aqueous systems as trivalent and hexavalent Corresponding Author Email sivakumar.gjesmgmail.com forms. However, the latter form is of particular concern Tel. 91 44 26580451 Fax 91 44 26580451 due to its carcinogenic and mutagenic effects Oladoja Global J. Environ.

Biosorption of Chromium Using Bacteria An Overview

Biosorption Of Chromium Using Bacteria An Overview

Chromium Cr is a naturally occurring heavy metal, commonly found in the environment in two valence states Trivalent Cr III and hexavalent Cr VI. It is widely used in industrial processes, such as leather tanning, electroplating, metal finishing and chromate preparation processes, thereby, contaminating many environmental systems 6 .

Chromium VI biosorption and bioaccumulation by

Chromium Vi Biosorption And Bioaccumulation By

Chromium VI biosorption and bioaccumulation by chromate resistant bacteria. Srinath T1, Verma T, Ramteke PW, Garg SK. ... In this study, strains that are capable of bioaccumulating CrVI were isolated from treated tannery effluent of a common effluent treatment plant. The CrVI concentration in this treated effluent was 0.96 mgl, much ...

Microbial Mechanisms for Remediation of Hexavalent

Microbial Mechanisms For Remediation Of Hexavalent

While the hexavalent chromium CrVI is highly toxic and can trigger serious human health issues, its reduced form, the trivalent chromium CrIII, is less toxic and insoluble. Leather tanning is an important industry in many developing countries and serves as a major source of CrVI contamination.

Bioremediation of Hexavalent Chromium by Chromium

Bioremediation Of Hexavalent Chromium By Chromium

total chromium 4043 mgL. On top of that, the tannery e uents in Chittagong, the second biggest city in Bangladesh, contained hexavalent chromium at 70.33 mgL 9. CrVI was also found in deep tube wells in the Hazaribagh area, which exceeded the Bangladesh standard limit 0.05 mgL of chromium in drinking water 2.

Biosorption of Chromium VI in Aqueous Solution by

Biosorption Of Chromium Vi In Aqueous Solution By

Hexavalent chromium Cr VI is an important water pollutant. Even at metals levels measuring in the parts per billion ppb, research has shown it to be toxic 4. Cr VI can originate from different anthropogenic activities such as chromite mining, leather tanning, pigment synthesis, electroplating and metal finishing 4. The primary forms

Biosorption and biotransformation of Cr VI by

Biosorption And Biotransformation Of Cr Vi By

Biosorption was reported in several cases of bacteria 4, 10. Though there were reports of active fungal biosorption of chromium, fungal transformation of hexavalent chromium was insignificantly reported 11-14. In present study, hexavalent chromium stressed environmental fungal isolates from tannery

Statistical screening of hexavalent chromium

Statistical Screening Of Hexavalent Chromium

Key words Statistical screening, Hexavalent chromium, Plackett-Burman design, Sargassum, Biosorption, Isotherm INTRODUCTION Effluent issued from tanning, metallurgy, electroplating and other industries contain chromium ions that release in the environment such as water and soil 1. Chromium is a heavy metal

BIOSORPTION OF CHROMIUM VI BY A MUTATED

Biosorption Of Chromium Vi By A Mutated

A bacterial strain capable of chromium biosorption was isolated from tannery waste collected from a tannery near Park Circus, Kolkata, using the plate and dilution technique. Nutrient agar containing 50 ppm chromium VI ion was used as a plate medium Bera et al., 2003. The organism was

Reduction and bioaccumulation of hexavalent chromium by

Reduction And Bioaccumulation Of Hexavalent Chromium By

Farag, S. Zaki, S. Identification of bacterial strains from tannery effluent and reduction of hexavalent chromium. Journal of Environmental Biology 31 5 2010 877-882. Viti, C. Pace, A. Giovannetti, L. Characterization of Cr VI resistant bacteria isolated from chromium contaminated soil by tannery

Biosorption of hexavalent chromium by Pleurotus

Biosorption Of Hexavalent Chromium By Pleurotus

Mar 28, 2019 Hexavalent chromium CrVI is one of the forms normally found in nature, and presents itself as chromates and dichromates CrO 4 2-and Cr 2 O 7 2-, being soluble at a wide range of pH values and generally transportable in the soilwater system.These ions are extremely toxic and mutagenic, and their ingestion can be fatal when consumed in small amounts.

Biosorption of hexavalent chromium by Aspergillus

Biosorption Of Hexavalent Chromium By Aspergillus

97 Biosorption of hexavalent chromium by Aspergillus fumigatus S101 isolated from a coal mining environment Satarupa Dey1, Swagata Bhattacharya2, Rajyasri Ghosh2, Shampa Bhattacharyya2 1Agricultural and Ecological Research unit, Indian Statistical Institute, 203 Barrackpore Trunk Road, Kolkata 7000108, India 2Mycology and plant pathology laboratory, Department of Botany, Scottish

Research Article Biosorption of Hexavalent Chromium

Research Article Biosorption Of Hexavalent Chromium

e biosorption of hexavalent chromium from aqueous solutions by Opuntia cladodes and ectodermis from cactus fruits was investigated. Both types of biomass are considered low-cost, natural, and ecofriendly biosorbents. Batch experiments were carried out to determine CrVI biosorption

Removal of Toxic Hexavalent Chromium Ions from

Removal Of Toxic Hexavalent Chromium Ions From

of hexavalent chromium in leather tanning Font et al. 1999. Some auxiliaries in the post-tanning and finishing operations, respectively, may also contribute to the release of CrVI ions into the effluent. The dosages of leather tanning effluents showing toxicity to sea

Biosorption of hexavalent chromium from aqueous

Biosorption Of Hexavalent Chromium From Aqueous

Mar 15, 2020 The release of excessive heavy metals from various industries has become a global concern. The toxic heavy metals such as chromium, copper, zinc, cadmium, lead and nickel can be accumulated and passed into the food chain instead of being biodegraded Garg et al. 2007.Among numerous harmful heavy metals, chromium, mainly existing in two oxidation states CrVI and

Bioremediation of Hexavalent Chromium by Chromium

Bioremediation Of Hexavalent Chromium By Chromium

Chromium Cr VI has long been known as an environmental hazard that can be reduced from aqueous solutions through bioremediation by living cells. In this study, we investigated the efficiency of reduction and biosorption of CrVI by chromate resistant bacteria isolated from tannery effluent. From 28 screened CrVI resistant isolates, selected bacterial strain SH-1 was identified as ...

Biosorption of hexavalent chromium using tamarind

Biosorption Of Hexavalent Chromium Using Tamarind

The results of equilibrium of biosorption of hexavalent chromium thus fit to the equations. Both models were developed for a single-layer adsorption. However, the Freundlich model physically provides a more realistic description of adsorption by organic matter because it accounts for different binding sites.

Biosorption of chromium VI from aqueous solutions by

Biosorption Of Chromium Vi From Aqueous Solutions By

The hexavalent form of chromium is considered to be a group A human carcinogen because of its mutagenic and carcinogenic properties Cieslak-Golonka, 1995. Cr VI is a common pollutant introduced into natural waters from a variety of industrial wastewaters including those from the textile dyeing, leather tanning, electroplating and metal ...

Biosorption of hexavalent chromium in a tannery

Biosorption Of Hexavalent Chromium In A Tannery

Biosorption of hexavalent chromium in a tannery industry wastewater using fungi species D. Sivakumar - Department of Civil Engineering, Vel Tech High Tech Dr.Rangarajan Dr.Sakunthala Engineering College, Avadi, Chennai 600062, Tamil Nadu, India

PDF Microbial Bioremediation of Chromium in Tannery

Pdf Microbial Bioremediation Of Chromium In Tannery

Chromium, a priority pollutant is well known for its mutagenicity, carcinogenicity and teratogenicity in humans, experimental animals and plants. Extensive use of chromium in industries such as leather tanning, stainless-steel production, electroplating and wood preservatives have resulted in chromium contaminated soil and ground water at production sites which pose a serious threat to human ...

Biosorption of hexavalent chromium from aqueous medium

Biosorption Of Hexavalent Chromium From Aqueous Medium

Jan 01, 2014 Free Online Library Biosorption of hexavalent chromium from aqueous medium with Opuntia biomass.Research Article, Report by The Scientific World Journal Biological sciences Environmental issues Chromium Chemical properties Identification and classification Chromium Metal Prickly pears Usage Sorption Models

Biosorption of hexavalent chromium by Pleurotus

Biosorption Of Hexavalent Chromium By Pleurotus

Biosorption of hexavalent chromium by Pleurotus ostreatus Glalber Luiz da Rocha Ferreira a,, Francielo Vendruscolo , Nelson Roberto Antoniosi Filhob aSchool of Agronomy, Federal University of Goias, P.O., Zip Code 74.690-900, Goiania, GO, Brazil b Laboratory of Methods of Extraction and Separation, Institute of Chemistry, Federal University of Goias, Zip Code

Bioremoval of Hexavalent Chromium from Aqueous Solutions

Bioremoval Of Hexavalent Chromium From Aqueous Solutions

The applicability of Langmuir model to the hexavalent chromium-algae system implies that the biosorption onto the adsorbent surface is homogeneous in nature Donmez and Aksu, 2002. The Q max value is the maximum value of Q e , which is important to identify the biosorbent material having the highest uptake capacity and useful in scale-up ...

Removal of hexavalent chromiumcontaminated water and

Removal Of Hexavalent Chromiumcontaminated Water And

CrVI is a well-known highly toxic metal, considered a priority pollutant. Industrial sources of CrVI include leather tanning, cooling tower blowdown, plating, electroplating, anodizing baths, rinse waters, etc. This article includes a survey of removal techniques for CrVI-contaminated aqueous solutions. A particular focus is given to adsorption, membrane filtration, ion exchange, and ...

Biosorption of hexavalent chromium in a tannery

Biosorption Of Hexavalent Chromium In A Tannery

Biosorption of hexavalent chromium in a tannery industry wastewater using fungi species D. Sivakumar Department of Civil Engineering, Vel Tech High Tech

Biosorption of hexavalent chromium by microorganisms

Biosorption Of Hexavalent Chromium By Microorganisms

Apr 01, 2017 Sivakumar 2016 used Aspergillus species for the biosorption of Cr VI present in a tannery effluent, and showed that the greatest biosorption of 18.1 mg l 1 occurred at pH 3.0 using A. niger, followed by A. flavus, A. fumigatus, A. nidulans, A. heteromorphus, A. foetidus and A. viridinutans.

Hexavalent chromium biosorption studies using Penicillium

Hexavalent Chromium Biosorption Studies Using Penicillium

Apr 01, 2015 Hexavalent chromium biosorption studies using Penicillium griseofulvum MSR1 a novel isolate from tannery effluent site BoxBehnken optimization, equilibrium, kinetics and thermodynamic studies Author links open overlay panel Evy Alice Abigail.