Pub Date : 2022-07-27DOI: 10.1080/10889868.2022.2087592
Mohammad Javad Bahmanzadegan Jahromi, V. Abdossi, S. Samavat, A. Mohammadi Torkashvand, H. Mozafari
Abstract There is little information on the impact of soil amendments on lead absorption by ornamental plants as phytoremediation and the antioxidant system. The experiment was set up in a factorial based on completely block design with three replications on Zinnia elegans. [Pb (NO3) at (0, 40, 80, and 120 mg kg−1), soil amendment (control, diethylene trinitrilo pentaacetic acid (DTPA) 2.5 mM, DTPA 5 mM, humic acid 200 mg. L−1, and HA 400 mg. L−1)]. Increased Pb concentration resulted in a significant rise in antioxidant enzymes, as well as an increase in Pb absorption by Z. elegans. DTPA 5 mM and HA 400 mg. L−1 application lead to significantly higher shoot dry weight (49 and 56%), root dry weight (62 and 63%), catalase (CAT) (18 and 19%), peroxidase (POX) (63 and 67%), superoxide dismutase (SOD) (10 and 14%), and shoot Pb (36 and 33 mg.kg−1) in the contaminated soil, respectively. With the application of DTPA and HA, the residual Pb in soil fell in a negative association with the remediation factor. Z. elegans growing in polluted soils treated with DTPA 5 mM and HA 400 mg. kg−1 showed Pb tolerance by inducing an effective antioxidative response to Pb toxicity and enhancing Pb absorption for phytoremediation purposes.
{"title":"New approach of antioxidant properties of Zinnia elegans using bioremediation of Pb-contaminated soils","authors":"Mohammad Javad Bahmanzadegan Jahromi, V. Abdossi, S. Samavat, A. Mohammadi Torkashvand, H. Mozafari","doi":"10.1080/10889868.2022.2087592","DOIUrl":"https://doi.org/10.1080/10889868.2022.2087592","url":null,"abstract":"Abstract There is little information on the impact of soil amendments on lead absorption by ornamental plants as phytoremediation and the antioxidant system. The experiment was set up in a factorial based on completely block design with three replications on Zinnia elegans. [Pb (NO3) at (0, 40, 80, and 120 mg kg−1), soil amendment (control, diethylene trinitrilo pentaacetic acid (DTPA) 2.5 mM, DTPA 5 mM, humic acid 200 mg. L−1, and HA 400 mg. L−1)]. Increased Pb concentration resulted in a significant rise in antioxidant enzymes, as well as an increase in Pb absorption by Z. elegans. DTPA 5 mM and HA 400 mg. L−1 application lead to significantly higher shoot dry weight (49 and 56%), root dry weight (62 and 63%), catalase (CAT) (18 and 19%), peroxidase (POX) (63 and 67%), superoxide dismutase (SOD) (10 and 14%), and shoot Pb (36 and 33 mg.kg−1) in the contaminated soil, respectively. With the application of DTPA and HA, the residual Pb in soil fell in a negative association with the remediation factor. Z. elegans growing in polluted soils treated with DTPA 5 mM and HA 400 mg. kg−1 showed Pb tolerance by inducing an effective antioxidative response to Pb toxicity and enhancing Pb absorption for phytoremediation purposes.","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42796884","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 : 2022-07-27DOI: 10.1080/10889868.2022.2087591
Olusola A Oluwole, J. Oluyege, T. Olowomofe
{"title":"Biodegradation of polyethylene based films used in water packaging by dumpsite bacteria","authors":"Olusola A Oluwole, J. Oluyege, T. Olowomofe","doi":"10.1080/10889868.2022.2087591","DOIUrl":"https://doi.org/10.1080/10889868.2022.2087591","url":null,"abstract":"","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47179338","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 : 2022-07-27DOI: 10.1080/10889868.2022.2086530
Soumen Dey, Riya Chakraborty, J. Mohanta, B. Dey
{"title":"Tricosanthes cucumerina: a potential biomass for efficient removal of methylene blue from water","authors":"Soumen Dey, Riya Chakraborty, J. Mohanta, B. Dey","doi":"10.1080/10889868.2022.2086530","DOIUrl":"https://doi.org/10.1080/10889868.2022.2086530","url":null,"abstract":"","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48462023","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 : 2022-06-24DOI: 10.1080/10889868.2022.2086528
O. Khalil, M. Omara
Abstract Pentachlorophenol (PCP) is one of the most toxic pollutants in the environment during modern industrial processes. Statistical experimental designs based on biological methods optimized the PCP biodegradation by Bacillus mucilaginosus and Pseudomonas plecoglossicida. Four factors were selected for PCP removal; glucose, ferric ammonium citrate, PCP concentration, and incubation period. PBD and CCD were performed to recognize the maximum PCP biodegradation. The maximum PCP biodegradation in PBD by B. mucilaginosus was obtained at glucose, 0.5 (g/l); ferric ammonium citrate, 0.5 (g/l); PCP concentration, 300 (mg/l) and incubation period, 3 (days) while the maximum conditions by P. plecoglossicida were glucose, 0.5 (g/l); ferric ammonium citrate, 0.5 (g/l); PCP concentration, 100 (mg/l) and incubation period, 3 (days). In addition, CCD predicted the optimum predicted degradation of PCP (100%) by the two selected strains using glucose (1.0 g/l), ferric ammonium citrate (0.059 mg/l), PCP concentration (350 mg/l), and 2-days for B. mucilaginosus. While glucose (0.276 g), ferric ammonium citrate (0.047 mg/l) and 2-days were optimal conditions for P. plecoglossicida. P. plecoglossicida.and B. mucilaginosus could degrade more than 72% and 61% of PCP when these isolates were grown under a high concentration of PCP (300 and 350 mg L−1) in a mineral salt medium, respectively.
{"title":"Optimizing rapid pentachlorophenol biodegradation using response surface methodology","authors":"O. Khalil, M. Omara","doi":"10.1080/10889868.2022.2086528","DOIUrl":"https://doi.org/10.1080/10889868.2022.2086528","url":null,"abstract":"Abstract Pentachlorophenol (PCP) is one of the most toxic pollutants in the environment during modern industrial processes. Statistical experimental designs based on biological methods optimized the PCP biodegradation by Bacillus mucilaginosus and Pseudomonas plecoglossicida. Four factors were selected for PCP removal; glucose, ferric ammonium citrate, PCP concentration, and incubation period. PBD and CCD were performed to recognize the maximum PCP biodegradation. The maximum PCP biodegradation in PBD by B. mucilaginosus was obtained at glucose, 0.5 (g/l); ferric ammonium citrate, 0.5 (g/l); PCP concentration, 300 (mg/l) and incubation period, 3 (days) while the maximum conditions by P. plecoglossicida were glucose, 0.5 (g/l); ferric ammonium citrate, 0.5 (g/l); PCP concentration, 100 (mg/l) and incubation period, 3 (days). In addition, CCD predicted the optimum predicted degradation of PCP (100%) by the two selected strains using glucose (1.0 g/l), ferric ammonium citrate (0.059 mg/l), PCP concentration (350 mg/l), and 2-days for B. mucilaginosus. While glucose (0.276 g), ferric ammonium citrate (0.047 mg/l) and 2-days were optimal conditions for P. plecoglossicida. P. plecoglossicida.and B. mucilaginosus could degrade more than 72% and 61% of PCP when these isolates were grown under a high concentration of PCP (300 and 350 mg L−1) in a mineral salt medium, respectively.","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47917745","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 : 2022-06-21DOI: 10.1080/10889868.2022.2086529
Shokufeh Beglari, F. Khodagholi, Hamid Gholami pourbadie, A. Iranbakhsh, M. Rohani
Abstract Nickel is a heavy metal that has a variety of negative impacts on living organisms and causes different health disorders. Probiotic bacteria have been recently utilized for nickel detoxification through bioremediation strategies. We inspected that the role of probiotic lactic acid bacteria in reducing nickel toxicity has been investigated using two biological methods, including biosorption and bioaccumulation. Seventeen strains of nickel-resistant probiotic lactic acid bacteria isolated from the human microbiome were selected out of 88 strains by three different screening stages comprising disc diffusion, MIC, and biosorption/bioaccumulation tests culminated in four of the most powerful strains in reducing nickel from their culture medium. They were L. brevis 205, L. mocusae 226, L. casei 375, and B. infantis 1001 with the mean nickel biosorption rate of 82%, 66%, 70%, and 74%, respectively. The bioaccumulation test resulted in an approximate rate of accumulated nickel inside the strains cells. L. casei, L. brevis, and L. mocusae had the best rate of about 43% nickel accumulation, followed by B. infantis with a 42% bioaccumulation rate. This study supports that the theory of applying probiotic lactic acid bacteria to food and water detoxification could be a safe, bio-friendly alternative for gut remediation and in edible industries.
{"title":"Biosorption and bioaccumulation of nickel by probiotic lactic acid bacteria isolated from human feces","authors":"Shokufeh Beglari, F. Khodagholi, Hamid Gholami pourbadie, A. Iranbakhsh, M. Rohani","doi":"10.1080/10889868.2022.2086529","DOIUrl":"https://doi.org/10.1080/10889868.2022.2086529","url":null,"abstract":"Abstract Nickel is a heavy metal that has a variety of negative impacts on living organisms and causes different health disorders. Probiotic bacteria have been recently utilized for nickel detoxification through bioremediation strategies. We inspected that the role of probiotic lactic acid bacteria in reducing nickel toxicity has been investigated using two biological methods, including biosorption and bioaccumulation. Seventeen strains of nickel-resistant probiotic lactic acid bacteria isolated from the human microbiome were selected out of 88 strains by three different screening stages comprising disc diffusion, MIC, and biosorption/bioaccumulation tests culminated in four of the most powerful strains in reducing nickel from their culture medium. They were L. brevis 205, L. mocusae 226, L. casei 375, and B. infantis 1001 with the mean nickel biosorption rate of 82%, 66%, 70%, and 74%, respectively. The bioaccumulation test resulted in an approximate rate of accumulated nickel inside the strains cells. L. casei, L. brevis, and L. mocusae had the best rate of about 43% nickel accumulation, followed by B. infantis with a 42% bioaccumulation rate. This study supports that the theory of applying probiotic lactic acid bacteria to food and water detoxification could be a safe, bio-friendly alternative for gut remediation and in edible industries.","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46173154","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 : 2022-06-20DOI: 10.1080/10889868.2022.2086850
A. Neisi, S. Jorfi, G. Goudarzi, M. Ardakani, P. Mahmoudi, A. Takdastan
{"title":"Biodegradation potential of native hydrocarbon degrading bacteria by using bio-stimulation on crude oil in soils of Khuzestan province (Abadan, Ahvaz and Andimeshk) –Iran","authors":"A. Neisi, S. Jorfi, G. Goudarzi, M. Ardakani, P. Mahmoudi, A. Takdastan","doi":"10.1080/10889868.2022.2086850","DOIUrl":"https://doi.org/10.1080/10889868.2022.2086850","url":null,"abstract":"","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44823633","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 : 2022-06-20DOI: 10.1080/10889868.2022.2086527
Eglė Malachovskienė, D. Bridžiuvienė, Jolita Ostrauskaite, Justina Vaičekauskaitė, G. Žalūdienė
{"title":"Degradative impact of Alternaria multiformis on novel polymeric biocomposites with the fillers of industrial waste materials under different pH and temperature conditions","authors":"Eglė Malachovskienė, D. Bridžiuvienė, Jolita Ostrauskaite, Justina Vaičekauskaitė, G. Žalūdienė","doi":"10.1080/10889868.2022.2086527","DOIUrl":"https://doi.org/10.1080/10889868.2022.2086527","url":null,"abstract":"","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":"1 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41705840","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 : 2022-06-20DOI: 10.1080/10889868.2022.2079605
F. N. Ezugworie, V. C. Okechukwu, C. O. Onwosi
Abstract Poultry litter is a complex mixture comprising heavy metals feed scraps, antibiotics, water, feathers. Although treatment of these wastes has not currently received much attention in Nigeria, poultry litter is widely used as source of organic fertilizer for subsistence farming by rural and urban areas of the country. It is essential to effectively stabilize the organic waste because the continuous use of the poultry manure in agricultural activities poses great threat to the health of the soil environment due to heavy metals and antibiotic-resistant pathogens. Composting is an effective method for stabilizing organic manure toward reducing the heavy metals content. Hence, the present study determined the effect of biochar additives on heavy metals and antibiotic-resistant bacteria removal during composting of poultry litter (PL), vegetable waste (VW), and corn stalk (CS). To this end, three composting trials were set-up comprising control: PL (57.58%) + CS (38.41%) + VW (4.01%), TX: control + 5% biochar, and TY: control + 10% biochar. The composting pile was also spiked with heavy metals (Pb, Cu, Zn, Cr, Cd, and As) and their removal efficiencies were monitored. To enumerate the antibiotic-resistant bacteria in the compost, Nutrient agar was supplemented with antibiotics such as ampicillin, chloramphenicol, amoxicillin, ciprofloxacin, gentamycin, and tetracycline. The outcome of the investigation showed that the highest reduction in total coliform from 3.68 to 1.06 log10 CFU g−1 was observed in TY. The addition of 10% biochar in TY also reduced the concentration of antibiotic-resistant bacteria in all the treatments to an undetectable limit compared to TX (5% biochar) and control (no biochar). The biochar-aided heavy metals removal followed a first-order path. With the exception of Cd removal where TX showed the best removal rate (k = 0.1582), the TY resulted in best removal rates for Pb, Zn, Cu, Cr, and As. The decreasing order of heavy metal removal rates from TY is as follows: Cu (k = 0.2025) > Cr (k = 0.1403) > Pb (k = 0.1300) > Zn (k = 0.1290), > As (k = 0.090). Therefore, biochar additives during composting of poultry litter should be encouraged amongst the rural farmers.
{"title":"Biochar amendment aids in the reduction of antibiotic-resistant bacteria and heavy metals during composting of poultry litter","authors":"F. N. Ezugworie, V. C. Okechukwu, C. O. Onwosi","doi":"10.1080/10889868.2022.2079605","DOIUrl":"https://doi.org/10.1080/10889868.2022.2079605","url":null,"abstract":"Abstract Poultry litter is a complex mixture comprising heavy metals feed scraps, antibiotics, water, feathers. Although treatment of these wastes has not currently received much attention in Nigeria, poultry litter is widely used as source of organic fertilizer for subsistence farming by rural and urban areas of the country. It is essential to effectively stabilize the organic waste because the continuous use of the poultry manure in agricultural activities poses great threat to the health of the soil environment due to heavy metals and antibiotic-resistant pathogens. Composting is an effective method for stabilizing organic manure toward reducing the heavy metals content. Hence, the present study determined the effect of biochar additives on heavy metals and antibiotic-resistant bacteria removal during composting of poultry litter (PL), vegetable waste (VW), and corn stalk (CS). To this end, three composting trials were set-up comprising control: PL (57.58%) + CS (38.41%) + VW (4.01%), TX: control + 5% biochar, and TY: control + 10% biochar. The composting pile was also spiked with heavy metals (Pb, Cu, Zn, Cr, Cd, and As) and their removal efficiencies were monitored. To enumerate the antibiotic-resistant bacteria in the compost, Nutrient agar was supplemented with antibiotics such as ampicillin, chloramphenicol, amoxicillin, ciprofloxacin, gentamycin, and tetracycline. The outcome of the investigation showed that the highest reduction in total coliform from 3.68 to 1.06 log10 CFU g−1 was observed in TY. The addition of 10% biochar in TY also reduced the concentration of antibiotic-resistant bacteria in all the treatments to an undetectable limit compared to TX (5% biochar) and control (no biochar). The biochar-aided heavy metals removal followed a first-order path. With the exception of Cd removal where TX showed the best removal rate (k = 0.1582), the TY resulted in best removal rates for Pb, Zn, Cu, Cr, and As. The decreasing order of heavy metal removal rates from TY is as follows: Cu (k = 0.2025) > Cr (k = 0.1403) > Pb (k = 0.1300) > Zn (k = 0.1290), > As (k = 0.090). Therefore, biochar additives during composting of poultry litter should be encouraged amongst the rural farmers.","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45127655","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 : 2022-06-15DOI: 10.1080/10889868.2021.1968335
R. Perotti, P. González, C. Paisio, E. Agostini
Abstract Most current methodologies for the treatment of tannery effluents do not succeed in bringing contaminant levels down to values that fit environmental standards in force, which means there is a need for appropriate optimization. The present work assessed effluent quality to gain further insight into their variability across time, considering both conventional parameters and those specifically related to tannery effluents, such as chromium levels. Most of the effluents analyzed exceeded the contaminant limits established by current national legislation and therefore would require treatment. To improve treatment efficiency, a mixed bacterial culture was selected on the basis of its ability to remove organic matter (OM), measured in terms of chemical oxygen demand (COD) and biochemical oxygen demand (BOD5). The four strains analyzed, belonging to the genera Bacillus, Rhodococcus and Acinetobacter, were isolated from sediments contaminated with effluents with a high organic load. The native consortium SFC 500-1, formed by Acinetobacter guillouiae SFC 500-1 A and Bacillus toyonensis SFC 500-1E, proved to be the most effective at reducing BOD5 and COD. It was selected for bioaugmentation treatment. Dissolved oxygen was found to be key for reduction, and the inoculum size required to treat effluents with different COD values was also determined. All in all, the results confirmed previous characterization of these effluents, which should always be the basis for treatment and management strategies, and also contributed to optimizing some operational parameters so that effective and safe treatment technologies may be developed.
{"title":"Selection and optimization of a mixed culture for bioaugmentation based on BOD5 and COD reduction in tannery effluents","authors":"R. Perotti, P. González, C. Paisio, E. Agostini","doi":"10.1080/10889868.2021.1968335","DOIUrl":"https://doi.org/10.1080/10889868.2021.1968335","url":null,"abstract":"Abstract Most current methodologies for the treatment of tannery effluents do not succeed in bringing contaminant levels down to values that fit environmental standards in force, which means there is a need for appropriate optimization. The present work assessed effluent quality to gain further insight into their variability across time, considering both conventional parameters and those specifically related to tannery effluents, such as chromium levels. Most of the effluents analyzed exceeded the contaminant limits established by current national legislation and therefore would require treatment. To improve treatment efficiency, a mixed bacterial culture was selected on the basis of its ability to remove organic matter (OM), measured in terms of chemical oxygen demand (COD) and biochemical oxygen demand (BOD5). The four strains analyzed, belonging to the genera Bacillus, Rhodococcus and Acinetobacter, were isolated from sediments contaminated with effluents with a high organic load. The native consortium SFC 500-1, formed by Acinetobacter guillouiae SFC 500-1 A and Bacillus toyonensis SFC 500-1E, proved to be the most effective at reducing BOD5 and COD. It was selected for bioaugmentation treatment. Dissolved oxygen was found to be key for reduction, and the inoculum size required to treat effluents with different COD values was also determined. All in all, the results confirmed previous characterization of these effluents, which should always be the basis for treatment and management strategies, and also contributed to optimizing some operational parameters so that effective and safe treatment technologies may be developed.","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":"26 1","pages":"271 - 280"},"PeriodicalIF":2.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42798783","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 : 2022-04-24DOI: 10.1080/10889868.2022.2057414
S. Adebajo, A. Ojo, P. Bankole, A. Oladotun, P. Akintokun, E. O. Ogunbiyi, Anuoluwapo Bada
Abstract Untreated paint and textile effluents discharged from industries cause serious environmental threats to fauna and flora. This study thus, investigated the potential of different indigenous bacterial cells for the degradation of paint and textile effluents. Paint and textile effluents samples were aseptically collected from paint and textile industries. Physical, chemical, heavy metals properties and microbial load of the effluent were investigated using standard methods. Enrichment, Isolation and identification of bacterial isolates were determined using the standard microbiological methods. Screening of paint and textile effluents degraders was carried out using solid phase screening method. Degradation of paint and textile effluents were determined by Fourier-transform infrared (FTIR) analysis and spectrophotometrically. Results revealed that among the heavy metals analyzed, lead from paint effluent had highest value of 5.49 ± 1.2 mg/L. All the samples collected were turbid with highest and lowest values of 865 ± 1.3 and 514 ± 2.5 (NTU) from paint effluent samples. Paint effluent also recorded highest bacterial count of 6.85 ± 1.13 CFU/ml while paint sludge had the lowest count of 1.16 ± 0. 15 CFU/g. Forty-seven bacterial isolates were obtained from the paint and textile effluents samples. Screening of the 47 isolates showed that 21 isolates possessed the ability to grow on agar plates amended with paints and textile dyes. Out of the 21 positive isolates, 12 isolates were obtained from paint samples while nine isolates were recovered from the textile samples. Highest degradation activity was recorded by Bacillus subtilis (94.37% ±5.35) obtained from textile effluent sample while Micrococcus sp (46.55% ±8.30) from paint polluted soil sample had the lowest degradation activity. FTIR analysis showed the transformation and disappearance of peaks in the treated paint and textile effluents by Bacillus subtilis. This study revealed the ability and effectiveness of Bacillus subtilis in the removal of toxic materials in paint and textile effluents, thus could be applied for industrial use.
{"title":"Degradation of paint and textile industrial effluents by indigenous bacterial isolates","authors":"S. Adebajo, A. Ojo, P. Bankole, A. Oladotun, P. Akintokun, E. O. Ogunbiyi, Anuoluwapo Bada","doi":"10.1080/10889868.2022.2057414","DOIUrl":"https://doi.org/10.1080/10889868.2022.2057414","url":null,"abstract":"Abstract Untreated paint and textile effluents discharged from industries cause serious environmental threats to fauna and flora. This study thus, investigated the potential of different indigenous bacterial cells for the degradation of paint and textile effluents. Paint and textile effluents samples were aseptically collected from paint and textile industries. Physical, chemical, heavy metals properties and microbial load of the effluent were investigated using standard methods. Enrichment, Isolation and identification of bacterial isolates were determined using the standard microbiological methods. Screening of paint and textile effluents degraders was carried out using solid phase screening method. Degradation of paint and textile effluents were determined by Fourier-transform infrared (FTIR) analysis and spectrophotometrically. Results revealed that among the heavy metals analyzed, lead from paint effluent had highest value of 5.49 ± 1.2 mg/L. All the samples collected were turbid with highest and lowest values of 865 ± 1.3 and 514 ± 2.5 (NTU) from paint effluent samples. Paint effluent also recorded highest bacterial count of 6.85 ± 1.13 CFU/ml while paint sludge had the lowest count of 1.16 ± 0. 15 CFU/g. Forty-seven bacterial isolates were obtained from the paint and textile effluents samples. Screening of the 47 isolates showed that 21 isolates possessed the ability to grow on agar plates amended with paints and textile dyes. Out of the 21 positive isolates, 12 isolates were obtained from paint samples while nine isolates were recovered from the textile samples. Highest degradation activity was recorded by Bacillus subtilis (94.37% ±5.35) obtained from textile effluent sample while Micrococcus sp (46.55% ±8.30) from paint polluted soil sample had the lowest degradation activity. FTIR analysis showed the transformation and disappearance of peaks in the treated paint and textile effluents by Bacillus subtilis. This study revealed the ability and effectiveness of Bacillus subtilis in the removal of toxic materials in paint and textile effluents, thus could be applied for industrial use.","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48303778","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：