In this study, nanoscale zero valent iron (nZVI) and biochar supported zero valent iron (nZVI/BC) mediated anaerobic digestion of piggery wastewater were investigated. The variation of COD removal ...
{"title":"Impact of nZVI and nZVI/BC on the anaerobic digestion of piggery wastewater","authors":"Wen Qiu, Ying Liu, Shenglan Li, Guozhi Fan, Cheng Pan, Guangsen Song, Qunpeng Cheng","doi":"10.1080/10889868.2023.2282640","DOIUrl":"https://doi.org/10.1080/10889868.2023.2282640","url":null,"abstract":"In this study, nanoscale zero valent iron (nZVI) and biochar supported zero valent iron (nZVI/BC) mediated anaerobic digestion of piggery wastewater were investigated. The variation of COD removal ...","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":"61 8","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138524137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-18DOI: 10.1080/10889868.2023.2279196
Victor Manuel Duarte Zaragoza, Maria Luisa Camargo-Lozano, Violeta Carrasco Hernández, Adriana Maria Hernández López
Bioadsorption with agro-industrial wastes is a viable technique for the removal of heavy metals from wastewater. This work assessed the capacity as removal agent chromium(Cr)(VI) of walnut, coffee,...
{"title":"Use of agro-industrial wastes for the removal of chromium(VI) from contaminated water: an electrochemical exploration","authors":"Victor Manuel Duarte Zaragoza, Maria Luisa Camargo-Lozano, Violeta Carrasco Hernández, Adriana Maria Hernández López","doi":"10.1080/10889868.2023.2279196","DOIUrl":"https://doi.org/10.1080/10889868.2023.2279196","url":null,"abstract":"Bioadsorption with agro-industrial wastes is a viable technique for the removal of heavy metals from wastewater. This work assessed the capacity as removal agent chromium(Cr)(VI) of walnut, coffee,...","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":"31 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138524103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
AbstractPerchlorate has become one of the most significant contaminants in our environment. Perchlorate is responsible for difficulties relating to both human and environmental health. In contaminated areas, microorganisms that degrade perchlorate are now promising bioremediation techniques. Microorganisms based on chemical, physical, and other biological approaches are favored for economic and environmental reasons. These microbes were accountable for the breakdown of perchlorate in the environment. This state-of-the-art review explores the perchlorate is a nonvolatile anion that is non-reactive and kinetically stable due to the most oxidized form of the chlorine atom. However, several industrial applications of perchlorate contamination have become a global concern. Perchlorate has several undesirable effects on the ecosystem as it degrades the environmental quality along with numerous anthropogenic activities. Currently, perchlorate-reducing microbes have proven to be a promising approach toward bioremediation. It can be hypothesized that bioreactors using perchlorate-reducing microbes would facilitate water treatment’s efficacy and prevent several deadly diseases caused by perchlorate contamination. Additionally, this study delves into innovative and conventional remediation techniques used to mitigate perchlorate contamination. It covers a wide range of strategies, including biological treatments, ion exchange, chemical reduction, and phytoremediation, among others. Furthermore, it discusses each technique’s advantages, limitations, and feasibility, considering factors such as cost, scalability, and site-specific conditions.Keywords: Bioreactorbioremediationcontaminantmetabolic pathwaysperchloratetoxicity AcknowledgmentsThe authors would like to acknowledge the Department of Biotechnology, School of Bioengineering, and SRM Institute of Science and Technology for providing the necessary facilities for the research.Disclosure statementThe authors disclosed no possible conflicts of interest.Additional informationFundingThis project’s execution was not supported by any funding agencies.
{"title":"A concise overview of perchlorate sources, contamination, and remediation techniques","authors":"Kotabhaargavi Sai, Meera Soundarajan, Kubera Raj Selvaraj, Shivani Somasundaram, Praveen Kumar, MuthuKumar Raghunathan","doi":"10.1080/10889868.2023.2279199","DOIUrl":"https://doi.org/10.1080/10889868.2023.2279199","url":null,"abstract":"AbstractPerchlorate has become one of the most significant contaminants in our environment. Perchlorate is responsible for difficulties relating to both human and environmental health. In contaminated areas, microorganisms that degrade perchlorate are now promising bioremediation techniques. Microorganisms based on chemical, physical, and other biological approaches are favored for economic and environmental reasons. These microbes were accountable for the breakdown of perchlorate in the environment. This state-of-the-art review explores the perchlorate is a nonvolatile anion that is non-reactive and kinetically stable due to the most oxidized form of the chlorine atom. However, several industrial applications of perchlorate contamination have become a global concern. Perchlorate has several undesirable effects on the ecosystem as it degrades the environmental quality along with numerous anthropogenic activities. Currently, perchlorate-reducing microbes have proven to be a promising approach toward bioremediation. It can be hypothesized that bioreactors using perchlorate-reducing microbes would facilitate water treatment’s efficacy and prevent several deadly diseases caused by perchlorate contamination. Additionally, this study delves into innovative and conventional remediation techniques used to mitigate perchlorate contamination. It covers a wide range of strategies, including biological treatments, ion exchange, chemical reduction, and phytoremediation, among others. Furthermore, it discusses each technique’s advantages, limitations, and feasibility, considering factors such as cost, scalability, and site-specific conditions.Keywords: Bioreactorbioremediationcontaminantmetabolic pathwaysperchloratetoxicity AcknowledgmentsThe authors would like to acknowledge the Department of Biotechnology, School of Bioengineering, and SRM Institute of Science and Technology for providing the necessary facilities for the research.Disclosure statementThe authors disclosed no possible conflicts of interest.Additional informationFundingThis project’s execution was not supported by any funding agencies.","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":"14 22","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135043840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
AbstractThis study investigated the symbiotic potential of Jatropha curcas and Reutealis trisperma with two isolates of dark septate endophyte (DSE) fungi (Cladosporium sp. and Rhyzopycnis vagum) grown on gold mine tailings media based on their ability to remediate Pb and their morphological, physiological, and anatomical changes. The targeted plants were grown for 12 weeks on different media contained mixed soil and compost, gold mine tailings, and tailing with additional charcoal. The result showed that DSE inoculation increased the height of J. curcas up to 24.1% in contaminated soil compared to control treatment without DSE. All DSE fungi were able to colonize both root plant even under gold mine tailing treatment. DSE inoculation increased chlorophyll content of both plants ranging from 11% to 33% compared to the plants without DSE. Jatropha curcas inoculated with DSE had the potential to be used as phytoremediation plant with a phytoextraction mechanism indicated by higher translocation factor (TF) value. Meanwhile, the R. trisperma was able to be used for phytoremediation categorized as phytostabilization due to lower TF values. The results of this study highlighted the possible role of the DSE symbiotic with J. curcas and R. trisperma to improve the efficiency of phytoremediation in contaminated lands.Keywords: Dark septate endophytesJatropha curcasmine tailingphytoremediationReutealis trisperma AcknowledgmentsAuthors also would like to say thank you to the Indonesian Soil Research Institute for providing the dark septate endophyte inoculant. Finally, we thanks to PT Aneka Tambang (ANTAM) Pongkor, Bogor Indonesia, for their support to use gold mine tailings for this research.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe authors received the support from the Ministry of Education and Culture of the Republic of Indonesia for funding research under the 2019 Penelitian Dasar Unggulan Perguruan Tinggi (PDUPT) with the Grant number of 1/E1/KP.PTNBH/2021 on 8 March 2021.
{"title":"Dark septate endophyte inoculation improved Pb phytoremediation of <i>Jatropha curcas</i> and <i>Reutealis trisperma</i> on gold mine tailings","authors":"Dian Siti Marfuah, Hamim Hamim, Yohana Caecilia Sulistyaningsih, Surono Surono, Luluk Setyaningsih, Deden Saprudin","doi":"10.1080/10889868.2023.2279194","DOIUrl":"https://doi.org/10.1080/10889868.2023.2279194","url":null,"abstract":"AbstractThis study investigated the symbiotic potential of Jatropha curcas and Reutealis trisperma with two isolates of dark septate endophyte (DSE) fungi (Cladosporium sp. and Rhyzopycnis vagum) grown on gold mine tailings media based on their ability to remediate Pb and their morphological, physiological, and anatomical changes. The targeted plants were grown for 12 weeks on different media contained mixed soil and compost, gold mine tailings, and tailing with additional charcoal. The result showed that DSE inoculation increased the height of J. curcas up to 24.1% in contaminated soil compared to control treatment without DSE. All DSE fungi were able to colonize both root plant even under gold mine tailing treatment. DSE inoculation increased chlorophyll content of both plants ranging from 11% to 33% compared to the plants without DSE. Jatropha curcas inoculated with DSE had the potential to be used as phytoremediation plant with a phytoextraction mechanism indicated by higher translocation factor (TF) value. Meanwhile, the R. trisperma was able to be used for phytoremediation categorized as phytostabilization due to lower TF values. The results of this study highlighted the possible role of the DSE symbiotic with J. curcas and R. trisperma to improve the efficiency of phytoremediation in contaminated lands.Keywords: Dark septate endophytesJatropha curcasmine tailingphytoremediationReutealis trisperma AcknowledgmentsAuthors also would like to say thank you to the Indonesian Soil Research Institute for providing the dark septate endophyte inoculant. Finally, we thanks to PT Aneka Tambang (ANTAM) Pongkor, Bogor Indonesia, for their support to use gold mine tailings for this research.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe authors received the support from the Ministry of Education and Culture of the Republic of Indonesia for funding research under the 2019 Penelitian Dasar Unggulan Perguruan Tinggi (PDUPT) with the Grant number of 1/E1/KP.PTNBH/2021 on 8 March 2021.","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":"120 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135136186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-09DOI: 10.1080/10889868.2023.2279201
Tanishka Watts, Kanika Khoba, Ram Singh Purty
AbstractPlastics, which are complex polymers, have been a persistent problem due to their inherent non-biodegradability, despite their numerous applications. The huge piles of accumulated plastic are not only damaging to the environment, but also a major contributing factor to deteriorating human health. Over the years, plastic waste has been recycled and treated using conventional and advanced non-biodegradable waste treatment technologies such as incineration and landfilling, and pyrolysis and thermodegradation. However, these face their own set of challenges, and hence the use of microbial enzyme machineries to degrade plastic has recently garnered attention. We attempted to find the species that degrades mono(2-hydroxyethyl) terephthalic acid (MHET) with the highest efficiency in this study by using in silico screening of the enzyme mono(2-hydroxyethyl) terephthalic acid hydrolase (MHETase). Using the MHETase enzyme sequence of Ideonella sakaiensis as the query sequence, BLAST analysis was performed to identify the top 10 homologous sequences in other species. To identify the degrading efficiency, molecular docking using PatchDock between MHETase of different species with MHET as ligand was performed. The species Pigmentiphaga litoralis had the highest docking score of 3634, and this shows that this species degrades MHET most efficiently. The interaction studies showed that this docked molecule has 7 hydrophobic interactions and 1 hydrogen bonds. In the recent years, use of bioinformatics tools is unprecedented, growing fast and it became one of the important component in any biological research activity.Keywords: Computational approachIdeonella sakaiensisMHETasemolecular dockingmono(2-hydroxyethyl) terephthalic acidPigmentiphaga litoralisplastics degradation AcknowledgmentsWe like to thank GGS Indraprastha University, New Delhi for all the laboratory space and encouragement.Authors’ contributionsRSP designed the research project. RSP, KK and TW performed computational work, data analysis and paper preparation. Both the authors have read and agreed to publish the version of the manuscript.Disclosure statementThe authors declare that there are no conflicts of interest.Additional informationFundingThe present research received no specific grant from any funding agency.
{"title":"<i>In silico</i> approach for evaluating the degradation efficiency of plastic degrading enzyme mono(2-hydroxyethyl) terephthalic acid hydrolase (MHETase) of selected bacteria","authors":"Tanishka Watts, Kanika Khoba, Ram Singh Purty","doi":"10.1080/10889868.2023.2279201","DOIUrl":"https://doi.org/10.1080/10889868.2023.2279201","url":null,"abstract":"AbstractPlastics, which are complex polymers, have been a persistent problem due to their inherent non-biodegradability, despite their numerous applications. The huge piles of accumulated plastic are not only damaging to the environment, but also a major contributing factor to deteriorating human health. Over the years, plastic waste has been recycled and treated using conventional and advanced non-biodegradable waste treatment technologies such as incineration and landfilling, and pyrolysis and thermodegradation. However, these face their own set of challenges, and hence the use of microbial enzyme machineries to degrade plastic has recently garnered attention. We attempted to find the species that degrades mono(2-hydroxyethyl) terephthalic acid (MHET) with the highest efficiency in this study by using in silico screening of the enzyme mono(2-hydroxyethyl) terephthalic acid hydrolase (MHETase). Using the MHETase enzyme sequence of Ideonella sakaiensis as the query sequence, BLAST analysis was performed to identify the top 10 homologous sequences in other species. To identify the degrading efficiency, molecular docking using PatchDock between MHETase of different species with MHET as ligand was performed. The species Pigmentiphaga litoralis had the highest docking score of 3634, and this shows that this species degrades MHET most efficiently. The interaction studies showed that this docked molecule has 7 hydrophobic interactions and 1 hydrogen bonds. In the recent years, use of bioinformatics tools is unprecedented, growing fast and it became one of the important component in any biological research activity.Keywords: Computational approachIdeonella sakaiensisMHETasemolecular dockingmono(2-hydroxyethyl) terephthalic acidPigmentiphaga litoralisplastics degradation AcknowledgmentsWe like to thank GGS Indraprastha University, New Delhi for all the laboratory space and encouragement.Authors’ contributionsRSP designed the research project. RSP, KK and TW performed computational work, data analysis and paper preparation. Both the authors have read and agreed to publish the version of the manuscript.Disclosure statementThe authors declare that there are no conflicts of interest.Additional informationFundingThe present research received no specific grant from any funding agency.","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":" 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135192953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-08DOI: 10.1080/10889868.2023.2269220
Ishika Saha, Sriparna Datta, Dipa Biswas
AbstractDyes are widely used in manufacturing of various consumer products for their ability to impart characteristic color. However, dyes are also one of the most important hazardous pollutants in this present day. Presence of hydroxyl, phosphate, ether, carbonyl and alkyl groups also enable bacterial extracellular polymers to function as biosorbent. In this study, negatively charged biosorbent EP-C1 produced by Gram-negative bacterium Ochrobactrum pseudintermedium C1 utilizing waste mineral lubricating oil has given different decolorization percentages for triphenylmethane cationic Malachite Green and azoic anionic Congo Red at neutral pH. Time wise absorbances from Ultraviolet-Visible Spectrophotometry has estimated maximum biosorption of Malachite Green after 300 min. Biosorption capacities have differed with initial dye concentrations, biosorbent dosages and contact time. Time taken by each dye to reach saturation has depended upon their charged bearing groups of each dye and biosorbent. Kinetic (pseudo first and pseudo second order) and diffusion (intra particle and liquid film) parameters in presence of different dye concentrations and biosorbent dosages were studied for understanding the biosorption mechanism. Morphological differences in chemical structure, chemical functional groups of EP-C1 and EP-C1 loaded dye was studied by Fourier Transform Infrared Spectroscopy, Scanning Electron Microscopy and Zeta potential measurements. A compiled overview on comparative mechanistic biosorption of Malachite Green and Congo Red dyes by a bacterial extracellular polymer in miniature laboratory shake flask experiments was done in this study. Newer advents on biological remediation of dyes with mineral lubricating oil as sole carbon source can add a new feather to the already available bioremediation techniques in mitigation of hazardous wastes.Keywords: Biosorbentbiosorption mechanismcharacterization techniquesdyesextracellular polymerlaboratory scale experimentwaste mineral lubricating oil AcknowledgmentsThe authors gratefully acknowledge (i) Department of Chemical Technology, University of Calcutta (ii) Department of Polymer Science and Technology, University of Calcutta (iii) Centre for Research in Nanoscience and Nanotechnology, University of Calcutta for instrument facilities and (iv) Asianol Factory, Kolkata, West Bengal, India for oil samples.Authors’ contributionsThe study was conceptualized by Sriparna Datta and Ishika Saha. The methodology of the study was developed by Sriparna Datta and Ishika Saha. Result analysis and investigation of the study was done by Ishika Saha. Original draft of the manuscript was written by Ishika Saha. Revision and editing of the manuscript was done by Ishika Saha, Sriparna Datta and Dipa Biswas. Laboratory equipment, reagents, chemicals required for the study was arranged by Sriparna Datta and Dipa Biswas.Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability sta
{"title":"Mechanistic approach on comparative biosorption of dyes by extracellular polymer of <i>Ochrobactrum pseudintermedium</i> C1 utilizing waste mineral lubricating oil","authors":"Ishika Saha, Sriparna Datta, Dipa Biswas","doi":"10.1080/10889868.2023.2269220","DOIUrl":"https://doi.org/10.1080/10889868.2023.2269220","url":null,"abstract":"AbstractDyes are widely used in manufacturing of various consumer products for their ability to impart characteristic color. However, dyes are also one of the most important hazardous pollutants in this present day. Presence of hydroxyl, phosphate, ether, carbonyl and alkyl groups also enable bacterial extracellular polymers to function as biosorbent. In this study, negatively charged biosorbent EP-C1 produced by Gram-negative bacterium Ochrobactrum pseudintermedium C1 utilizing waste mineral lubricating oil has given different decolorization percentages for triphenylmethane cationic Malachite Green and azoic anionic Congo Red at neutral pH. Time wise absorbances from Ultraviolet-Visible Spectrophotometry has estimated maximum biosorption of Malachite Green after 300 min. Biosorption capacities have differed with initial dye concentrations, biosorbent dosages and contact time. Time taken by each dye to reach saturation has depended upon their charged bearing groups of each dye and biosorbent. Kinetic (pseudo first and pseudo second order) and diffusion (intra particle and liquid film) parameters in presence of different dye concentrations and biosorbent dosages were studied for understanding the biosorption mechanism. Morphological differences in chemical structure, chemical functional groups of EP-C1 and EP-C1 loaded dye was studied by Fourier Transform Infrared Spectroscopy, Scanning Electron Microscopy and Zeta potential measurements. A compiled overview on comparative mechanistic biosorption of Malachite Green and Congo Red dyes by a bacterial extracellular polymer in miniature laboratory shake flask experiments was done in this study. Newer advents on biological remediation of dyes with mineral lubricating oil as sole carbon source can add a new feather to the already available bioremediation techniques in mitigation of hazardous wastes.Keywords: Biosorbentbiosorption mechanismcharacterization techniquesdyesextracellular polymerlaboratory scale experimentwaste mineral lubricating oil AcknowledgmentsThe authors gratefully acknowledge (i) Department of Chemical Technology, University of Calcutta (ii) Department of Polymer Science and Technology, University of Calcutta (iii) Centre for Research in Nanoscience and Nanotechnology, University of Calcutta for instrument facilities and (iv) Asianol Factory, Kolkata, West Bengal, India for oil samples.Authors’ contributionsThe study was conceptualized by Sriparna Datta and Ishika Saha. The methodology of the study was developed by Sriparna Datta and Ishika Saha. Result analysis and investigation of the study was done by Ishika Saha. Original draft of the manuscript was written by Ishika Saha. Revision and editing of the manuscript was done by Ishika Saha, Sriparna Datta and Dipa Biswas. Laboratory equipment, reagents, chemicals required for the study was arranged by Sriparna Datta and Dipa Biswas.Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability sta","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":"44 S208","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135343509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-07DOI: 10.1080/10889868.2023.2277922
Said El Hasnaoui, Alassane Diallo, Eboua Narcisse Wandan, Fabrice Colin, Abdelaziz Smouni, Mouna Fahr
AbstractPeganum harmala L., commonly known as Harmal, is an aromatic and medicinal plant that grows in North Africa. P harmala is a pseudometallophyte that occur both in heavy metals contaminated and non contaminated soils . In order to identify the best adapted and suitable populations within P. harmala species, a comprehensive analysis and evaluation of the morphological, physiological, and biochemical responses to lead (Pb) and zinc (Zn) were performed in three metallicolous populations (MP) and a non-metallicolous one (NMP). In Zaida, Mibladen, and Aouli Morrocan sites, P. harmala growing soils show a low organic matter content, high Pb and Zn concentrations, and a pollution index higher than 1, indicating a significant contamination level. The effects of Pb and Zn on growth, physiological, antioxidant enzyme activities, and Pb/Zn accumulation capacity were compared between a NMP and three MP of P. harmala. Plants were grown in hydroponic culture with 100 µM of ZnSO4 or 100 µM of Pb(NO3)2 for 15 days. Our results show that Pb and Zn significantly decreased the aboveground biomass in the NMP, MP-Mibladen, and MP-Aouli compared to MP-Zaida. Pb and Zn decreased significantly the root biomass in the NMP compared to the MP. There is no significant difference in chlorophyll a and b contents between NMP and MP. Under Pb exposure, anthocyanin content is shown to be significantly higher in MP-Zaida than in other populations. In contrast, there is no difference between NMP and MP under Zn stress. Proline content as well as the catalase, peroxidase, and ascorbate peroxidase activities was significantly higher in NMP than in MP under Pb and Zn exposure. In particular, lower proline content, and antioxidant activities were observed in MP-Zaida under the Pb and Zn exposure. Pb and Zn accumulations were significantly higher in the NMP than in the MP, both in roots and aboveground parts, showing that the NMP plants accumulated highly but tolerated less compared to the MP. In the present study, the MP-Zaida accumulated less Pb and Zn in their tissues and tolerated more than the other populations, suggesting this population as a good candidate for a phytostabilization strategy.Keywords: Pb stressZn stressantioxidant enzymestoleranceaccumulationPeganum harmala AcknowledgmentsPublished with the support of “Institut de Recherche pour le Developpement IRD and Agence Francaise de Développement (AFD)” in the framework of ACE Partner; IRD: JEAI—PhytoMet 2018–2020; LMI ‘AMIR’ 2020–2025” France and Programme Prioritaire de recherche PPR- Ministère de l’Enseignement Supérieur, de la Recherche Scientifique et de la Formation des Cadres-Morocco.Author contribution statementA.S., and M.F Conceptualization; S.E.H., A.D Investigation; S.E.H., A.D Formal analysis; F.C., A.S, and M.F Resources; S.E.H., A.D., A.S., and M.F Writing—original draft preparation; E.N.W., F.C., A.S., and M.F Writing—review and editing; A.S., and M.F Supervision; F.C., A.S., and M.F Project administra
{"title":"Lead and Zinc tolerance and accumulation in metallicolous and non-metallicolous populations of <i>Peganum harmala L</i> : potential use in phytostabilization","authors":"Said El Hasnaoui, Alassane Diallo, Eboua Narcisse Wandan, Fabrice Colin, Abdelaziz Smouni, Mouna Fahr","doi":"10.1080/10889868.2023.2277922","DOIUrl":"https://doi.org/10.1080/10889868.2023.2277922","url":null,"abstract":"AbstractPeganum harmala L., commonly known as Harmal, is an aromatic and medicinal plant that grows in North Africa. P harmala is a pseudometallophyte that occur both in heavy metals contaminated and non contaminated soils . In order to identify the best adapted and suitable populations within P. harmala species, a comprehensive analysis and evaluation of the morphological, physiological, and biochemical responses to lead (Pb) and zinc (Zn) were performed in three metallicolous populations (MP) and a non-metallicolous one (NMP). In Zaida, Mibladen, and Aouli Morrocan sites, P. harmala growing soils show a low organic matter content, high Pb and Zn concentrations, and a pollution index higher than 1, indicating a significant contamination level. The effects of Pb and Zn on growth, physiological, antioxidant enzyme activities, and Pb/Zn accumulation capacity were compared between a NMP and three MP of P. harmala. Plants were grown in hydroponic culture with 100 µM of ZnSO4 or 100 µM of Pb(NO3)2 for 15 days. Our results show that Pb and Zn significantly decreased the aboveground biomass in the NMP, MP-Mibladen, and MP-Aouli compared to MP-Zaida. Pb and Zn decreased significantly the root biomass in the NMP compared to the MP. There is no significant difference in chlorophyll a and b contents between NMP and MP. Under Pb exposure, anthocyanin content is shown to be significantly higher in MP-Zaida than in other populations. In contrast, there is no difference between NMP and MP under Zn stress. Proline content as well as the catalase, peroxidase, and ascorbate peroxidase activities was significantly higher in NMP than in MP under Pb and Zn exposure. In particular, lower proline content, and antioxidant activities were observed in MP-Zaida under the Pb and Zn exposure. Pb and Zn accumulations were significantly higher in the NMP than in the MP, both in roots and aboveground parts, showing that the NMP plants accumulated highly but tolerated less compared to the MP. In the present study, the MP-Zaida accumulated less Pb and Zn in their tissues and tolerated more than the other populations, suggesting this population as a good candidate for a phytostabilization strategy.Keywords: Pb stressZn stressantioxidant enzymestoleranceaccumulationPeganum harmala AcknowledgmentsPublished with the support of “Institut de Recherche pour le Developpement IRD and Agence Francaise de Développement (AFD)” in the framework of ACE Partner; IRD: JEAI—PhytoMet 2018–2020; LMI ‘AMIR’ 2020–2025” France and Programme Prioritaire de recherche PPR- Ministère de l’Enseignement Supérieur, de la Recherche Scientifique et de la Formation des Cadres-Morocco.Author contribution statementA.S., and M.F Conceptualization; S.E.H., A.D Investigation; S.E.H., A.D Formal analysis; F.C., A.S, and M.F Resources; S.E.H., A.D., A.S., and M.F Writing—original draft preparation; E.N.W., F.C., A.S., and M.F Writing—review and editing; A.S., and M.F Supervision; F.C., A.S., and M.F Project administra","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135475841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
AbstractIndustries play a substantial role in contaminating the freshwater sources. This study was performed to appraise the potential of biochar activated with 85% phosphoric acid was used as chemisorbent for the removal of Chromium III and VI (Cr III and VI)) and desorbed chromium was utilized for replacing the conventional basic chromium sulfate to ensure circular economy. In our previous studies, the factors for biosorption of Cr were optimized through Box–Behnken model under Response Surface Methodology. Batch adsorption studies revealed that the optimum conditions for maximum Cr (VI) biosorption by activated biochar is pH = 2, biosorbent dose: 1%, biosorbent size: 1 mm, solute concentration: 985 mg L−1 and reaction time 35 h. Based on these results a column experiments were carried out and flow rate was optimized as 0.5 ml m−1 where prominent “S” shaped breakthrough curves were noticed. The predicted values under Thomas model for the adsorption of Cr was 3827.2 µg g−1, which was in close agreement with experimental value of 3566.1 µg g−1. The percent Cr sorption varied from 70.05 to 88.75% in first cycle and showed decreasing trend in the subsequent cycles. The elutant 0.5 M H2SO4 desorbed 89.56% of chromium furthermore eluted chromium was utilized for leather tanning. Reusing of recovered chromium for tanning experiments does not alter the leather Tensile (240.82 kg cm−2) and tear strengths (32.41 kg mm−1). This study suggested that recovered chromium from biosorbent can be well utilized for leather tanning to attain the leather of equivalent qualities as that of conventional methods which could save 20–22% of the production cost besides defending the environment from Cr contamination.Keywords: Activated biocharadsorptionbiosorbentchromiumdesorptiontannery effluenttanning AcknowledgmentsThe authors are grateful to the anonymous reviewers and editors for their insightful comments that helped us sufficiently improve the quality of the article.Author informationDepartment of Environmental Sciences, Tamil Nadu Agricultural Universitytry, Coimbatore, India Ettiyagounder Parameswari, Rajakumaran Kalaiarasi, Veeraswamy Davamani, Periyasamy Kalaiselvi, and Selvaraj Paulsebastian.Department of Vegetable Science, Tamil Nadu Agricultural Chemistry, Coimbatore, IndiaTamilselvan IlakiyaContributionsConceptualization: Ettiyagounder Parameswari; Methodology: Periyasamy KalaiselviFormal analysis and investigation: Rajakumaran KalaiarasiWriting original draft preparation: Veeraswamy Davamani; Tamilselvan Ilakiya;Review and editing: Selvaraj Paul Sebastian;Funding acquisition: Ettiyagounder Parameswari;Resources and Supervision: Veeraswamy Davamani; Tamilselvan IlakiyaCorresponding author: Correspondence to Ettiyagounder ParameswariDisclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe authors thank the Science and Engineering Research Board (YSS/2015/001432), Department of Science and Technology
摘要工业对淡水资源的污染起着重要的作用。研究了85%磷酸活化的生物炭作为化学吸附剂去除三价铬和六价铬(Cr III和VI)的潜力，并利用解吸后的铬代替传统的碱式硫酸铬，以确保循环经济。在我们之前的研究中，我们采用响应面法下的Box-Behnken模型对Cr的生物吸附因素进行了优化。间歇式吸附研究表明，活性炭对Cr (VI)的最大生物吸附条件为pH = 2，生物吸附剂用量为1%，生物吸附剂粒径为1 mm，溶质浓度为985 mg L−1，反应时间为35 h。在此基础上进行了柱式吸附实验，优化流量为0.5 ml m−1，并观察到明显的“S”型突破曲线。Thomas模型对Cr吸附量的预测值为3827.2µg g−1，与实验值3566.1µg g−1吻合较好。在第一个循环中，Cr的吸附率为70.05 ~ 88.75%，随后的循环中Cr的吸附率呈下降趋势。洗脱液0.5 M H2SO4解吸了89.56%的铬，洗脱后的铬用于制革。在鞣制实验中重复使用回收铬不会改变皮革的拉伸强度(240.82 kg cm−2)和撕裂强度(32.41 kg mm−1)。研究表明，利用生物吸附剂回收的铬可获得与传统方法相当的皮革质量，在保护环境的同时可节省20-22%的生产成本。关键词:活性炭吸附;生物吸附;脱附;制革废水;致谢作者感谢匿名审稿人和编辑提出的有见地的意见，帮助我们充分提高文章的质量。作者简介:泰米尔纳德邦农业大学环境科学系，哥印拜托，印度Ettiyagounder Parameswari, Rajakumaran Kalaiarasi, Veeraswamy Davamani, Periyasamy Kalaiselvi和Selvaraj Paulsebastian。印度哥印拜陀泰米尔纳德邦农业化学蔬菜科学部形式分析与调查:Rajakumaran kalaiarasi写作原稿准备:Veeraswamy Davamani;审核与编辑:Selvaraj Paul Sebastian;资金获取:Ettiyagounder Parameswari;资源与监督:Veeraswamy Davamani;Tamilselvan ilakiy通讯作者:与Ettiyagounder通信paramesward披露声明作者未报告潜在的利益冲突。作者感谢新德里科技部科学与工程研究委员会(YSS/2015/001432)的资助。
{"title":"Potentials of surface modified biochar for removal of Cr from tannery effluent and its regeneration to ensure circular economy","authors":"Ettiyagounder Parameswari, Rajakumaran Kalaiarasi, Veeraswamy Davamani, Periyasamy Kalaiselvi, Selvaraj Paulsebastian, Tamilselvan Ilakiya","doi":"10.1080/10889868.2023.2268649","DOIUrl":"https://doi.org/10.1080/10889868.2023.2268649","url":null,"abstract":"AbstractIndustries play a substantial role in contaminating the freshwater sources. This study was performed to appraise the potential of biochar activated with 85% phosphoric acid was used as chemisorbent for the removal of Chromium III and VI (Cr III and VI)) and desorbed chromium was utilized for replacing the conventional basic chromium sulfate to ensure circular economy. In our previous studies, the factors for biosorption of Cr were optimized through Box–Behnken model under Response Surface Methodology. Batch adsorption studies revealed that the optimum conditions for maximum Cr (VI) biosorption by activated biochar is pH = 2, biosorbent dose: 1%, biosorbent size: 1 mm, solute concentration: 985 mg L−1 and reaction time 35 h. Based on these results a column experiments were carried out and flow rate was optimized as 0.5 ml m−1 where prominent “S” shaped breakthrough curves were noticed. The predicted values under Thomas model for the adsorption of Cr was 3827.2 µg g−1, which was in close agreement with experimental value of 3566.1 µg g−1. The percent Cr sorption varied from 70.05 to 88.75% in first cycle and showed decreasing trend in the subsequent cycles. The elutant 0.5 M H2SO4 desorbed 89.56% of chromium furthermore eluted chromium was utilized for leather tanning. Reusing of recovered chromium for tanning experiments does not alter the leather Tensile (240.82 kg cm−2) and tear strengths (32.41 kg mm−1). This study suggested that recovered chromium from biosorbent can be well utilized for leather tanning to attain the leather of equivalent qualities as that of conventional methods which could save 20–22% of the production cost besides defending the environment from Cr contamination.Keywords: Activated biocharadsorptionbiosorbentchromiumdesorptiontannery effluenttanning AcknowledgmentsThe authors are grateful to the anonymous reviewers and editors for their insightful comments that helped us sufficiently improve the quality of the article.Author informationDepartment of Environmental Sciences, Tamil Nadu Agricultural Universitytry, Coimbatore, India Ettiyagounder Parameswari, Rajakumaran Kalaiarasi, Veeraswamy Davamani, Periyasamy Kalaiselvi, and Selvaraj Paulsebastian.Department of Vegetable Science, Tamil Nadu Agricultural Chemistry, Coimbatore, IndiaTamilselvan IlakiyaContributionsConceptualization: Ettiyagounder Parameswari; Methodology: Periyasamy KalaiselviFormal analysis and investigation: Rajakumaran KalaiarasiWriting original draft preparation: Veeraswamy Davamani; Tamilselvan Ilakiya;Review and editing: Selvaraj Paul Sebastian;Funding acquisition: Ettiyagounder Parameswari;Resources and Supervision: Veeraswamy Davamani; Tamilselvan IlakiyaCorresponding author: Correspondence to Ettiyagounder ParameswariDisclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe authors thank the Science and Engineering Research Board (YSS/2015/001432), Department of Science and Technology","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":"181 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135730295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-18DOI: 10.1080/10889868.2023.2269245
Nahid Ghochlavi, Ali Ahmad Aghapour
Abstract2, 4, 6-Triclorphenol is a halogenated aromatic compound with toxic, volatile, and odor properties. The anaerobic processes are superior to aerobic processes due to better dehalogenation of 2, 4, 6-Triclorphenol and easier control of releasing this toxic and odorous chemical compound into the air. However, anaerobic processes have lower reaction rates than aerobic processes. In this study, a rotating biological bed was used in an anaerobic sequencing batch reactor to increase the rate of anaerobic reactions. The anaerobic sequencing batch reactor equipped with a rotating biological bed removed more than 99% of the 2, 4, 6-Triclorphenol, 96% of total phenolic compounds, and more than 86% of its chemical oxidation demand in 2, 4, 6-Triclorphenol concentration of 430 mg/L and hydraulic retention time of 12 h. With the biological degradation of the 2, 4, 6-Triclorphenol by an anaerobic sequencing batch reactor Equipped with a rotating biological bed, more than 92% of the chlorine atoms in the structure of this compound were released into the effluent. Therefore, almost complete dehalogenation of 2, 4, 6-Triclorphenol is performed by this process. By removing the rotating biological bed from the anaerobic sequencing batch reactor equipped with a rotating biological bed, the bioreactor efficiency declined rapidly and progressed to failure. The role of rotating biological bed in dehalogenation (32%), biological degradation (10%), and mineralization (83%) of 2, 4, 6-Triclorphenol are very important. Therefore, a rotating biological bed has a significant role in promoting an anaerobic sequencing batch reactor. The anaerobic sequencing batch reactor equipped with a rotating biological bed can remove higher concentrations of 2, 4, 6-Triclorphenol at a lower hydraulic retention time than previously studied processes. Thus, the rotating biological bed can be an appropriate option for promoting anaerobic wastewater treatment plants that receive wastewater containing volatile, toxic, and complex organic compounds.Keywords: Anaerobic processbiological degradationrotating biological bed246-trichlorophenols Disclosure statementNo potential conflict of interest was reported by the authors.Additional informationFundingThe authors gratefully acknowledge the financial and technical support of the Urmia University of Medical Sciences, Iran.
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Pub Date : 2023-10-18DOI: 10.1080/10889868.2023.2269193
Vaibhav Kadam, Pooja Singh, Yogesh Patil, Om Prakash, Nikita Berawala
AbstractThis study investigated the effect of biosurfactants on the microbial degradation of thiocyanate (SCN−), with the aim of finding a sustainable solution for the treatment of industrial wastes containing thiocyanate and related compounds. Isolates VK8 and VT7, screened from amongst 40 automobile service station soil isolates, showed promising growth in the presence of high thiocyanate concentration (500 mg/L). Biosurfactant BS1-S1W from isolate S1W (Brucella intermedia) enhanced the degradation of SCN− by Brachybacterium sp. (VT7) and Bacillus albus (VK8) by 92% and 95%, respectively, at 200 mg/L. Biosurfactant BS2-VO6 from isolate VO6-2 (Brevundimonas naejangsanensis) caused increment in the reduction of SCN- by 88% and 80%, respectively. FTIR and LC-MS analysis of the purified biosurfactants confirmed their glycolipid nature. Enhanced effect of biosurfactant was more pronounced at higher KSCN concentration. Little is known about the effects of microbial products on the enhancement of microbial biodegradation of SCN−. Production and application of biosurfactant from B. naejangsanensis has not been reported earlier and hence can lead to more effective biological agents of enhanced biomedical and environmental relevance. This is the first report of the application of Brachybacterium and B. albus for thiocyanate degradation and the effect of biosurfactant on the same.Keywords: Automobile service stationBacillusbiodegradationbiosurfactantBrachybacteriumBrevundimonasrhamnolipidthiocyanate Author contributionsPS conceptualized the work, devised methodology, analyzed and curated the data and prepared the original draft; YP contributed to conceptualization of work, verification of data and editing of the prepared manuscript; VK, NK and OP performed all the experiments and involved in draft writing and statistical analysis; All the authors were involved in final reviewing and editing of the manuscript.AcknowledgementsThe authors thank Director, Symbiosis School of Biological Sciences, and the Registrar, Symbiosis International (Deemed University) for their support.Disclosure statementThe authors report that there are no competing interests to declare.Data availability StatementThe data that support the findings of this study are available from the corresponding author, [PS], upon reasonable request.Additional informationFundingThis work was supported by Department of Science and Technology (DST), Government of India under Grant number SR/WOS-B/134/2016.
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