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Peter Pristas - One of the best experts on this subject based on the ideXlab platform.
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analysis of the bacterial community from high alkaline ph 13 Drainage Water at a brown mud disposal site near žiar nad hronom banska bystrica region slovakia using 454 pyrosequencing
Folia Microbiologica, 2019Co-Authors: Jana Kiskova, Zuzana Stramova, Peter Javorsky, Peter Pristas, Jana SedlakovakadukovaAbstract:Brown mud, as a waste product of the industrial process of aluminum production, represents a great environmental burden due to its toxicity to living organisms. However, some microorganisms are able to survive in this habitat, and they can be used in bioremediation processes. Traditional cultivation methods have a limited capacity to characterize bacterial composition in environmental samples. Recently, next-generation sequencing methods have provided new perspectives on microbial community studies. The aim of this study was to analyze the bacterial community in the Drainage Water of brown mud disposal site near Žiar nad Hronom (Banska Bystrica region, Slovakia) using 454 pyrosequencing. We obtained 9964 sequences assigned to 163 operational taxonomic units belonging to 10 bacterial phyla. The phylum Proteobacteria showed the highest abundance (80.39%) within the bacterial community, followed by Firmicutes (13.05%) and Bacteroidetes (5.64%). Other bacterial phyla showed an abundance lower than 1%. The classification yielded 85 genera. Sulfurospirillum spp. (45.19%) dominated the bacterial population, followed by Pseudomonas spp. (13.76%) and Exiguobacterium spp. (13.02%). These results indicate that high heavy metals content, high pH, and lack of essential nutrients are the drivers of a dramatic reduction of diversity in the bacterial population in this environment.
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heterotrophic microflora of highly alkaline ph 13 brown mud disposal site Drainage Water near ziar nad hronom banska bystrica region slovakia
Environmental Science and Pollution Research, 2016Co-Authors: Zuzana Stramova, Matej Remenar, Peter Javorsky, Peter PristasAbstract:Brown mud is a waste by-product of alumina production by Bayer process. Due to extensive sodium hydroxide use in the process, brown mud disposal site near Ziar nad Hronom (Banska Bystrica region, Slovakia) and Drainage Water are ones of the greatest environmental burdens in Slovakia. Drainage Water from this landfills has pH value higher than 13, and it contains many heavy metals and elevated salt content. In our experiments, relatively numerous bacterial population was detected in the Drainage Water with frequency of about 80 cfu/ml using cultivation approach. The alkalitolerant heterotrophic isolates were identified by combination of MALDI-TOF and 16S rDNA analysis. Drainage Water population was dominated by Actinobacteria (Microbacterium spp. and Micrococcus spp.) followed by low G + C-content gram-positive bacteria (Bacillus spp.). Two isolates belonged to gram-negative bacteria only, identified as Brevundimonas spp. Phylogenetic and biochemical analyses indicate that nearly half of the bacteria isolated are probably representatives of a new species. Brown mud disposal site is proposed as a source of new bacterial taxa possibly used in bioremediation processes.
Zuzana Stramova - One of the best experts on this subject based on the ideXlab platform.
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analysis of the bacterial community from high alkaline ph 13 Drainage Water at a brown mud disposal site near žiar nad hronom banska bystrica region slovakia using 454 pyrosequencing
Folia Microbiologica, 2019Co-Authors: Jana Kiskova, Zuzana Stramova, Peter Javorsky, Peter Pristas, Jana SedlakovakadukovaAbstract:Brown mud, as a waste product of the industrial process of aluminum production, represents a great environmental burden due to its toxicity to living organisms. However, some microorganisms are able to survive in this habitat, and they can be used in bioremediation processes. Traditional cultivation methods have a limited capacity to characterize bacterial composition in environmental samples. Recently, next-generation sequencing methods have provided new perspectives on microbial community studies. The aim of this study was to analyze the bacterial community in the Drainage Water of brown mud disposal site near Žiar nad Hronom (Banska Bystrica region, Slovakia) using 454 pyrosequencing. We obtained 9964 sequences assigned to 163 operational taxonomic units belonging to 10 bacterial phyla. The phylum Proteobacteria showed the highest abundance (80.39%) within the bacterial community, followed by Firmicutes (13.05%) and Bacteroidetes (5.64%). Other bacterial phyla showed an abundance lower than 1%. The classification yielded 85 genera. Sulfurospirillum spp. (45.19%) dominated the bacterial population, followed by Pseudomonas spp. (13.76%) and Exiguobacterium spp. (13.02%). These results indicate that high heavy metals content, high pH, and lack of essential nutrients are the drivers of a dramatic reduction of diversity in the bacterial population in this environment.
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heterotrophic microflora of highly alkaline ph 13 brown mud disposal site Drainage Water near ziar nad hronom banska bystrica region slovakia
Environmental Science and Pollution Research, 2016Co-Authors: Zuzana Stramova, Matej Remenar, Peter Javorsky, Peter PristasAbstract:Brown mud is a waste by-product of alumina production by Bayer process. Due to extensive sodium hydroxide use in the process, brown mud disposal site near Ziar nad Hronom (Banska Bystrica region, Slovakia) and Drainage Water are ones of the greatest environmental burdens in Slovakia. Drainage Water from this landfills has pH value higher than 13, and it contains many heavy metals and elevated salt content. In our experiments, relatively numerous bacterial population was detected in the Drainage Water with frequency of about 80 cfu/ml using cultivation approach. The alkalitolerant heterotrophic isolates were identified by combination of MALDI-TOF and 16S rDNA analysis. Drainage Water population was dominated by Actinobacteria (Microbacterium spp. and Micrococcus spp.) followed by low G + C-content gram-positive bacteria (Bacillus spp.). Two isolates belonged to gram-negative bacteria only, identified as Brevundimonas spp. Phylogenetic and biochemical analyses indicate that nearly half of the bacteria isolated are probably representatives of a new species. Brown mud disposal site is proposed as a source of new bacterial taxa possibly used in bioremediation processes.
Ayman Allam - One of the best experts on this subject based on the ideXlab platform.
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Multi-objective models of waste load allocation toward a sustainable reuse of Drainage Water in irrigation
Environmental Science and Pollution Research, 2016Co-Authors: Ayman Allam, Chihiro Yoshimura, Ahmed Tawfik, Amr FleifleAbstract:The present study proposes a waste load allocation (WLA) framework for a sustainable quality management of agricultural Drainage Water (ADW). Two multi-objective models, namely, abatement-performance and abatement-equity-performance , were developed through the integration of a Water quality model (QAUL2Kw) and a genetic algorithm, by considering (1) the total waste load abatement, and (2) the inequity among waste dischargers. For successfully accomplishing modeling tasks, we developed a comprehensive overall performance measure ( E _ wla ) reflecting possible violations of Egyptian standards for ADW reuse in irrigation. This methodology was applied to the Gharbia drain in the Nile Delta, Egypt, during both summer and winter seasons of 2012. Abatement-performance modeling results for a target of E _ wla = 100 % corresponded to the abatement ratio of the dischargers ranging from 20.7 to 75.6 % and 29.5 to 78.5 % in summer and in winter, respectively, alongside highly shifting inequity values. Abatement-equity-performance modeling results for a target of E _ wla = 90 % unraveled the necessity of increasing treatment efforts in three out of five dischargers during summer, and four out of five in winter. The trade-off curves obtained from WLA models proved their reliability in selecting appropriate WLA procedures as a function of budget constraints, principles of social equity, and desired overall performance level. Hence, the proposed framework of methodologies is of great importance to decision makers working toward a sustainable reuse of the ADW in irrigation.
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a simulation based suitability index of the quality and quantity of agricultural Drainage Water for reuse in irrigation
Science of The Total Environment, 2015Co-Authors: Ayman Allam, Amr Fleifle, Chihiro Yoshimura, Ahmed Tawfik, A ElsaadiAbstract:Abstract The suitability of agricultural Drainage Water (ADW) for reuse in irrigation was indexed based on a simulation of quality and quantity. The ADW reuse index (DWRI) has two components; the first one indicates the suitability of Water quality (QLT) for reuse in irrigation based on the mixing ratio of ADW to canal irrigation Water without violating the standards of using mixed Water in irrigation, while the second indicates the available Water quantity (QNT) based on the ratio of the available ADW to the required reuse discharge to meet the irrigation requirements alongside the drain. The QLT and QNT values ranged from 0 to ≥ 3 and from 0 to ≥ 0.40, respectively. Correspondingly, five classes from excellent to poor and from high scarcity to no scarcity were proposed to classify the QLT and QNT values, respectively. This approach was then applied to the Gharbia drain in the Nile Delta, Egypt, combined with QUAL2Kw simulations in the summer and winter of 2012. The QLT values along the drain ranged from 1.11 to 2.91 and 0.68 to 1.73 for summer and winter, respectively. Correspondingly, the QLT classes ranged from good to very good and from fair to good, respectively. In regard to QNT, values ranged from 0.10 to 0.62 and from 0.10 to 0.88 for summer and winter, respectively. Correspondingly, the QNT classes ranged from medium scarcity to no scarcity for both seasons. The demonstration of DWRI in the Gharbia drain suggests that the proposed index presents a simple tool for spatially evaluating the suitability of ADW for reuse in irrigation.
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treatment of Drainage Water containing pharmaceuticals using duckweed lemna gibba
Energy Procedia, 2015Co-Authors: Ayman Allam, Chihiro Yoshimura, Ahmed Tawfik, Abdelazim M Negm, Amr FleifleAbstract:Abstract The potential use of duckweed (Lemna gibba) system to remove pharmaceuticals from Drainage Water (DW) was investigated. The system achieved removal of 66.12±1.4%, 47.50±2.0% and 66.50±1.7% for 1000 μg/L of acetaminophen (ACT), diclofenac (DFC), and progesterone (PRG), respectively. The uptake rate (kr1) of ACT, DFC, and PRG was significantly decreased from 0.884±0.12 to 0.199±0.02, from 0.528±0.02 to 0.152±0.01 and from 0.719±0.03 to 0.264±0.01 at increasing the initial concentration from 1 to 1000 μg/L, respectively. Moreover, the duckweed uptake contributed the major removal pathway followed by duckweed sorption and microbial degradation for ACT, DFC and PRG.
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potentials of using duckweed lemna gibba for treatment of Drainage Water for reuse in irrigation purposes
Desalination and Water Treatment, 2014Co-Authors: Ayman Allam, Ahmed Tawfik, A Elsaadi, Abdelazim M NegmAbstract:AbstractThe potential use of duckweed (Lemna gibba) for the treatment of Drainage Water was investigated. Three continuous flow duckweed-based treatment systems (one-pond, two-pond, and three-pond) were used. Removal efficiencies of CODtotal and ammonia in the two-pond system were significantly higher (60.2 ± 6.1% and 80.2 ± 1.4%) than that found for single-pond system (30.6 ± 7.9% and 56.8 ± 3.3%), respectively, at a total hydraulic retention time (HRT) of 14 d. Performance of three-pond system connected in series was evaluated at different HRTs of 21, 14, and 7 d. Results showed that increasing the HRT and area of duckweed pond to pond depth (Aduckweed/dpond) ratio from 7 to 14 d and from 63.83 to 127.66 substantially increased the removal efficiency of CODtotal from 59.7 ± 3.29 to 88.34 ± 1.82%, respectively, resulting an effluent quality of 13.6 ± 2.3 mg COD/L in the treated effluent. However, the removal efficiency of CODtotal remained almost constant when increasing the HRT from 14 to 21 d and Aduck...
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agricultural Drainage Water quality analysis and its suitability for direct reuse in irrigation case study kafr el sheikh governorate egypt
2013Co-Authors: Ayman Allam, Abdelazim M NegmAbstract:In Egypt, the major challenge facing the sustainable requirements for agricultural development is limited Water resources. Water supply shortage at the end of irrigation network is a common problem in the north of the Nile delta, Egypt. Consequently, the use of agricultural Drainage Waters provides one of the national feasible solutions for the problem. Nowadays the local irrigation districts depend on feeding some canals, which have Water supply shortage, by direct pumping from the nearby drains. The aim of the present study is to discuss the suitability of Drainage Water reuse in irrigation by backflow from drains at the end of the irrigation canals in the north of the Nile Delta. Moreover, to assess the Drainage Water quality and its suitability for direct reuse in irrigation in this area. The analysis of the collected data on Drainage Water quality of the study area compared to the Egyptian standards for the Drainage Water reuse indicated that the Drainage Water quality does not meet the local standards for the direct reuse of Drainage Water in irrigation. It is recommended to apply in-stream treatment system or mixing the Drainage Water with fresh irrigation Water for improving the Drainage Water quality to avoid the excessive deterioration of Drainage Water, soil and plant productivity.
Michelle L. Soupir - One of the best experts on this subject based on the ideXlab platform.
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fate and transport of tylosin resistant bacteria and macrolide resistance genes in artificially drained agricultural fields receiving swine manure
Science of The Total Environment, 2016Co-Authors: Elizabeth M Luby, Thomas B. Moorman, Michelle L. SoupirAbstract:Application of manure from swine treated with antibiotics introduces antibiotics and antibiotic resistance genes to soil with the potential for further movement in Drainage Water, which may contribute to the increase in antibiotic resistance in non-agricultural settings. We compared losses of antibiotic-resistant Enterococcus and macrolide-resistance (erm and msrA) genes in Water draining from plots with or without swine manure application under chisel plow and no till conditions. Concentrations of ermB, ermC and ermF were all >10(9)copies g(-1) in manure from tylosin-treated swine, and application of this manure resulted in short-term increases in the abundance of these genes in soil. Abundances of ermB, ermC and ermF in manured soil returned to levels identified in non-manured control plots by the spring following manure application. Tillage practices yielded no significant differences (p>0.10) in enterococci or erm gene concentrations in Drainage Water and were therefore combined for further analysis. While enterococci and tylosin-resistant enterococci concentrations in Drainage Water showed no effects of manure application, ermB and ermF concentrations in Drainage Water from manured plots were significantly higher (p<0.01) than concentrations coming from non-manured plots. ErmB and ermF were detected in 78% and 44%, respectively, of Water samples draining from plots receiving manure. Although ermC had the highest concentrations of the three genes in Drainage Water, there was no effect of manure application on ermC abundance. MsrA was not detected in manure, soil or Water. This study is the first to report significant increases in abundance of resistance genes in Waters draining from agricultural land due to manure application.
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Transport and Persistence of Tylosin-Resistant Enterococci, erm Genes, and Tylosin in Soil and Drainage Water from Fields Receiving Swine Manure
Journal of environmental quality, 2014Co-Authors: Jason L. Garder, Thomas B. Moorman, Michelle L. SoupirAbstract:Land application of manure from tylosin-treated swine introduces tylosin, tylosin-resistant enterococci, and erythromycin resistant rRNA methylase (erm) genes, which confer resistance to tylosin. This study documents the persistence and transport of tylosinresistant enterococci, erm genes, and tylosin in tile-drained chisel plow and no-till agricultural fields treated with liquid swine manure in alternating years. Between 70 and 100% of the enterococci in manure were resistant to tylosin and ermB concentrations exceeded 10 8 copies g -1 manure, while the mean ermF concentrations exceeded 10 7 copies g -1 manure (ermT was not detected). The mean concentration of tylosin was 73 ng g -1 manure. Soil collected from the manure injection band closely following application contained >10 9 copies g -1 soil of both ermB and ermF in 2010 and >10 8 copies g -1 soil after the 2011 application compared to 3 × 10 3 to 3 × 10 5 copies g -1 soil in the no-manure control plots. Gene abundances declined over the subsequent 2-yr period to levels similar to those in the nomanure controls. Concentrations of enterococci in tile Water were low, while tylosin-resistant enterococci were rarely detected. In approximately 75% of tile Water samples, ermB was detected, and ermF was detected in 30% of tile Water samples, but levels of these genes were not elevated due to manure application, and no difference was found between tillage practices. These results show that tylosin usage increased the short-term occurrence of tylosin-resistant enterococci, erm genes, and tylosin in soils but had minimal effect on tile Drainage Water quality in years of average to below average precipitation.
Douglas L Karlen - One of the best experts on this subject based on the ideXlab platform.
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effects of liquid swine manure applications on no3 n leaching losses to subsurface Drainage Water from loamy soils in iowa
Agriculture Ecosystems & Environment, 2005Co-Authors: Allah Bakhsh, Ramesh S Kanwar, Douglas L KarlenAbstract:Long-term applications of organic or inorganic sources of N to croplands can increase the leaching potential of nitrate– nitrogen (NO3–N) for soils underlain by subsurface Drainage ‘‘tile’’ network. A field study was conducted for 6 years (1993– 1998) to determine the effects of liquid swine manure and urea ammonium nitrate (UAN) solution fertilizer applications on NO3–N concentrations and NO3–N losses with subsurface Drainage Water under continuous corn (Zea maize L.) and corn after soybean (Glycine max. L.) production systems. The field data collected at Iowa State University’s northeastern research center near Nashua, Iowa, under six N-management treatments and each replicated three times, were analyzed as a randomized complete block design. The flow weighted average (FWA) NO3–N concentrations in tile flow were affected significantly (P < 0.05) by N-application rates from swine manure, growing season and treatment effects. Peak (FWA) NO3–N concentrations values of 31.8 mg L 1 under swine manure and 15.5 mg L 1 under UAN in subsurface drain Water were observed in 1995 following the dry year of 1994. The 6-year average crop rotation effects on NO3–N losses with tile flows were not found to be significantly affected either with swine manure or UAN-fertilizer applications but showed significant increase in corn grain yields under both the systems. Liquid swine manure, averaged across the 6-year period, resulted in significantly (P < 0.05) greater NO3–N losses with tile flows by 53% (26 kg N ha 1 versus 17 kg N ha 1 ) and showed no difference in corn grain yields in comparison with UAN-fertilizer applications under continuous corn production system. These results emphasize the need for better management of swine manure application system during the wet and dry growing seasons to reduce NO3–N leaching losses to shallow groundWater systems to avoid contamination of drinking Water supplies. # 2005 Published by Elsevier B.V.
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Water quality in walnut creek Watershed nitrate nitrogen in soils subsurface Drainage Water and shallow groundWater
Journal of Environmental Quality, 1999Co-Authors: Cynthia A Cambardella, Thomas B. Moorman, D B Jaynes, Jerry L Hatfield, T B Parkin, William W Simpkins, Douglas L KarlenAbstract:Nonpoint source contamination of surface and groundWater resources with nitrate-N (NO 3 -N) has been linked to agriculture across the midwestern USA. A 4-yr study was conducted to assess the extent of NO 3 -N leaching in a central Iowa field. Water flow rate was monitored continuously and data were stored on an internal datalogger. Water samples for chemical analysis were collected weekly provided there was sufficient flow. Twelve soil cores were collected in spring, early summer, mid-summer, and after harvest for each of the 4 yr. Nitrate-N concentrations in shallow groundWater exhibited temporal trends and were higher under Clarion soil than under Okoboji or Canisteo soil. Denitrification rates were two times higher in Okoboji surface soil than in Clarion surface soil and the highest denitrification potential among subsurface sediments was observed for deep unoxidized loess. Soil profile NO 3 -N concentrations decreased with depth and were the same below 30 cm for fertilized corn (Zea mays L.) and soybean (Glycine max L. Merr.). Nitrate-N concentrations in subsurface Drainage Water exceeded 10 mg L -1 for 12 mo and were between 6 and 9 mg L -1 for 32 mo during the 4-yr study. The temporal pattern of NO 3 -N concentrations in subsurface Drainage Water was not related to the timing of fertilizer N application or the amount of fertilizer N applied. Total NO 3 -N losses to subsurface drains were greatest in 1993 (51.3 kg ha 1 ) and least in 1994 (4.9 kg ha -1 ). Most of the subsurface Drainage Water NO 3 -N was lost when crop plants were not present (November-May), except in 1993. Our results indicate that NO 3 -N losses to subsurface Drainage Water occur primarily as a result of asynchronous production and uptake of NO 3 -N in the soil and the presence of large quantities of potentially mineralizable N in the soil organic matter.
