Investigation of the biotransformation of pentachlorophenol and pulp paper mill effluent decolorisation by the bacterial strains in a mixed culture

Singh, Shail; Chandra, Ram; Patel, D. K.; Reddy, M. Mutha; Rai, Vibhuti

doi:10.1016/j.biortech.2007.10.022

Cited by 52 publications

(28 citation statements)

References 23 publications

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“…These finding showed that the bacterial consortia grow well in modified media and have enhancing effect on growth, lignin degradation and phenol reduction. These results are very similar with the observations of other studies (Singh et al 2008;Yadav and Chandra 2015). The degradation of lignin and phenol reduction at initial phase was low in spite of fast bacterial growth which might be due to utilization of simpler form of carbon (sucrose) and nitrogen (yeast extract) available in the modified media.…”

Section: Periodic Monitoring Of Modified Media Degradation By Axenic supporting

confidence: 82%

Extraction of ligninolytic enzymes from novel Klebsiella pneumoniae strains and its application in wastewater treatment

2018

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The presence of lignin and its derivatives in pulp effluent increases the pollution load on the environment. With an aim of better degradation and decolourization of wastewater, this study proposes the utilization of different ligninolytic enzymes from novel bacterial strains. Four novel bacterial strains of Klebsiella pneumoniae (K. pneumoniae strains NITW715076, NITW715076_1, NITW715076_2 and NITW715076_3) were isolated and identified. The ligninolytic enzymes were characterized by plate assay method. For the optimization of various process parameters of effluent sample, different approaches were used like one factor at a time and statistical optimization through response surface methodology (RSM). Further to validate the above data, enzyme activity, total phenolic concentration, GC-MS analysis and seed germination test were also performed. The ligninolytic enzymes produced were characterized as laccase and Manganese peroxidase (MnP). In lignin degradation and decolourization studies, consortia 1 (K. pneumoniae NITW715076_2 + K. pneumoniae NITW715076_1) (82.31%) was found more effective when compared to axenic culture (K. pneumoniae NITW715076_2) (74.1%). In RSM studies, Laccase and MnP activities were increased by 20% and 18%, respectively, as compared to one factor at a time optimization method. In addition, the enzyme activity for laccase and MnP after prediction by RSM was found 53338 IU/L and 147900 IU/L, respectively. The R 2 values for both the enzymes were found to be significant. Further, GC-MS analysis also showed the degradation of different organic pollutants in effluent. Lastly, the seed germination test using consortia 1 corroborated the evidence of detoxification of industrial effluent. Effluent treated by consortia 1 showed better results in degradation and decolourization of lignin and their derivatives. Therefore, consortia 1 can be used for various industrial purposes like fruit juice clarification, diagnostic purposes and enhanced bioethanol production.

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Section: Periodic Monitoring Of Modified Media Degradation By Axenic supporting

confidence: 82%

Extraction of ligninolytic enzymes from novel Klebsiella pneumoniae strains and its application in wastewater treatment

2018

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“…The pulp and paper industry contributes heavily to water pollution, which generally arises from the industrial use of fiber, cellulose, and lignin; these components can impart high COD (chemical oxygen demand), color, and BOD to the effluent (Singh et al 2008). The BOD5 testing is not specific to any pollutant, but can be used as an aggregated water quality parameter indicating the amount of biodegradable organic materials in terms of oxygen consumption (Pepper et al 1996).…”

Section: Introductionmentioning

confidence: 99%

Microorganism Degradation Efficiency in BOD Analysis Formulating a Specific Microbial Consortium in a Pulp and Paper Mill Effluent

Ordaz-Díaz¹,

Rojas‐Contreras²,

Rutiaga-Quiñones³

et al. 2014

BioResources

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a Pulp and paper mills are a major source of pollution, generating huge amounts of intensely colored effluent that goes to the receiving end of a wastewater treatment plant. The biochemical oxygen demand test (BOD5) relies heavily on the microorganism metabolic capability added to the test as seeding material. The seeding material in the testing is obtained from sewage sampling or from commercial sources. Specific organic pollutants that are present in paper and pulp mill effluent can only be degraded by specific microbes; therefore, common sewage or synthetic seed may lead to erroneous BOD5 estimations. In this study, specific microbial species were selected to evaluate their degradation efficiency, both individually and in combination. The microorganisms selected in the formulated seed exhibit BOD5 in a reproducible and synergistic manner. The formulation of this specific microbial consortium can be used to develop bioremediation strategies.

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“…A maioria dos estudos é com os efluentes das indústrias de papel e celulose. Singh et al (2008) encontraram, em uma análise físico-química do efluente da indústria de papel e celulose, torno de 1440 mg L -1 de fenol total. Quimicamente, o fenol é um ácido fraco, com pH de soluções aquosas em torno de 6.0 e reage prontamente com agentes oxidantes, possui um pKa de 10,0 a 25 o C (WHO/ IPCS, 1994).…”

Section: Introductionunclassified

Atributos químicos do solo e lixiviação de compostos fenólicos após adição de resíduo sólido alcalino

Branco

Silveira

Campos

et al. 2013

Rev. bras. eng. agríc. ambient.

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RESUMOA utilização de resíduos alcalinos da indústria de papel e celulose (DREGS) na agricultura como corretivo de acidez do solo, vem sendo amplamente empregada como alternativa de descarte no solo de forma a reduzir o impacto ambiental. Objetivou-se, com este trabalho, determinar a influência da aplicação do dregs, rejeito da indústria de papel e celulose, nos atributos químicos do solo e na lixiviação de compostos fenólicos. As unidades experimentais foram constituídas por colunas de lixiviação preenchidas com solo incorporado com dregs nas doses de 0,0; 2,5; 5,0 e 10,0 g kg -1 . Chemical attributes of soil and leaching of phenolic compounds after addition of alkaline solid residue ABSTRACT The use of alkaline residues from pulp and paper industry (´dregs´) in agriculture as a corrective of soil acidity is being widely used as an alternative of ground disposal in order to reduce the environmental impact. The objective of this study was to determine the influence of application of the 'dregs', waste from pulp and paper industry, in soil chemical properties and leaching of phenolic compounds. The experimental units consisted of leaching columns filled with soil incorporated with 'dregs' at doses of 0, 2.5, 5.0 and 10.0 g kg -1 . Chemical analysis were performed in these soils, a Humic Camibissolo and a Typic Quartzipsamment soils, tests of solubilization of phenolic compounds and leaching tests were also carried out to determine the total content of phenolic compounds present in the leachate. The use of the 'dregs' modified the chemical attributes of the Humic Cambisol and Typic Quartzipsamment. The results obtained in the analysis of the leachate showed that the application of the 'dregs' led to an increase of compounds above the maximum allowed by law, which is 0,01 mg L -1 (ANBR, 2004a) and 0,5 mg L -1 (CONAMA, 2008).

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Investigation of the biotransformation of pentachlorophenol and pulp paper mill effluent decolorisation by the bacterial strains in a mixed culture

Cited by 52 publications

References 23 publications

Extraction of ligninolytic enzymes from novel Klebsiella pneumoniae strains and its application in wastewater treatment

Extraction of ligninolytic enzymes from novel Klebsiella pneumoniae strains and its application in wastewater treatment

Microorganism Degradation Efficiency in BOD Analysis Formulating a Specific Microbial Consortium in a Pulp and Paper Mill Effluent

Atributos químicos do solo e lixiviação de compostos fenólicos após adição de resíduo sólido alcalino

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