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[PMID]:29247505
[Au] Autor:Zielinska S; Radkowski P; Ossowski T; Ludwig-Galezowska A; Los JM; Los M
[Ad] Endereço:Department of Molecular Biology, University of Gdansk, Gdansk, Poland.
[Ti] Título:First insight into microbial community composition in a phosphogypsum waste heap soil.
[So] Source:Acta Biochim Pol;64(4):693-698, 2017.
[Is] ISSN:1734-154X
[Cp] País de publicação:Poland
[La] Idioma:eng
[Ab] Resumo:The aim of this study was to investigate the soil microbial communities of a phosphogypsum waste heap. The soil microbial community structures can differ over time, as they are affected by the changing environmental conditions caused by a long-term exposure to different kinds of pollutions, like is the case of soil in the post-production waste area in Wislinka (in the northern part of Poland) currently undergoing restoration. Our analyses indicated that the most abundant phyla were Proteobacteria, Acidobacteria, and Actinobacteria, and generally such an abundance is common for most of the studied soils. The most dominant class were Alphaproteobacteria, with their participation in 33.46% of the total reads. Among this class, the most numbered order was Sphingomonadales, whereas among this order the Sphingomonadaceae family was the most abundant one. The Sphingomonadaceae family is currently in the center of interest of many researchers, due to the ability of some of its members to utilize a wide range of naturally occurring organic compounds and many types of environmental contaminants. This kind of knowledge about microbial populations can support efforts in bioremediation and can improve monitoring changes in the contaminated environments.
[Mh] Termos MeSH primário: Sulfato de Cálcio
Microbiota/fisiologia
Fósforo
Microbiologia do Solo
Poluentes do Solo
[Mh] Termos MeSH secundário: Sequenciamento de Nucleotídeos em Larga Escala
Microbiota/genética
Polônia
RNA Ribossômico 16S
Solo/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (RNA, Ribosomal, 16S); 0 (Soil); 0 (Soil Pollutants); 13397-24-5 (phosphogypsum); 27YLU75U4W (Phosphorus); WAT0DDB505 (Calcium Sulfate)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180223
[Lr] Data última revisão:
180223
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171217
[St] Status:MEDLINE
[do] DOI:10.18388/abp.2017_2297


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[PMID]:29327892
[Au] Autor:Potran M; Strbac B; Puskar T; Hadzistevic; Hodolic J; Trifkovic B
[Ti] Título:Measurement of the accuracy of dental working casts using a coordinate measuring machine.
[So] Source:Vojnosanit Pregl;73(10):895-903, 2016 Oct.
[Is] ISSN:0042-8450
[Cp] País de publicação:Serbia
[La] Idioma:eng
[Ab] Resumo:Background/Aim: Dental impressions present a negative imprint of intraoral tissues of a patient which is, by pouring in gypsum, transferred extraorally on the working cast. Casting an accurate and precise working cast presents the first and very important step, since each of the following stages contributes to the overall error of the production process, which can lead to inadequately fitting dental restorations. The aim of this study was to promote and test a new model and technique for in vitro evaluation of the dental impression accuracy, as well as to asses the dimensional stability of impression material depending on the material bulk, and its effect on the accuracy of working casts. Methods: Impressions were made by the monophasic technique using the experimental master model. Custom trays with spacing of 1, 2 and 3 mm were constructed by rapid prototyping. The overall of 10 impressions were made with each custom tray. Working casts were made with gypsum type IV. Measurement of working casts was done 24 h later using a co-ordinate measuring machine. Results: The obtained results show that the working casts of all the three custom trays were in most cases significantly different in the transversal and sagittal planes in relation to the master model. The height of abutments was mainly unaffected. The degree of convergence showed certain significance in all the three custom trays, most pronounced in the tray with 3 mm spacing. Conclusion: The impression material bulk of 1­3 mm could provide accurate working casts when using the monophasic impression technique. The increase of the distance between abutment teeth influences the accuracy of working casts depending on the material bulk. [Projekat Ministarstva nauke Republike Srbije, br. TR 35020: Research and development of modelling methods and approaches in manufacturing of dental recoveries with the application of modern technologies and computer aided systems]
[Mh] Termos MeSH primário: Sulfato de Cálcio/normas
Técnica de Fundição Odontológica/normas
Materiais para Moldagem Odontológica/normas
Técnica de Moldagem Odontológica/normas
Modelos Dentários/normas
Bases de Dentadura/normas
Planejamento de Dentadura/normas
[Mh] Termos MeSH secundário: Sulfato de Cálcio/química
Projeto Auxiliado por Computador
Materiais para Moldagem Odontológica/química
Seres Humanos
Reprodutibilidade dos Testes
Resinas Sintéticas/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Dental Impression Materials); 0 (Resins, Synthetic); WAT0DDB505 (Calcium Sulfate)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180213
[Lr] Data última revisão:
180213
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180113
[St] Status:MEDLINE
[do] DOI:10.2298/VSP150105089P


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[PMID]:29121565
[Au] Autor:Shi Y; Gan L; Li X; He S; Sun C; Gao L
[Ad] Endereço:School of Resources and Safety Engineering, Central South University, Changsha, China.
[Ti] Título:Dynamics of metals in backfill of a phosphate mine of guiyang, China using a three-step sequential extraction technique.
[So] Source:Chemosphere;192:354-361, 2018 Feb.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Phosphate rock in Guiyang (Southwest of China) is used for the phosphate production, and hence generating a by-product phosphogypsum (PG). From 2007, part of the PG was used as main raw material for cemented backfill. The main objective of this paper is to investigate the geochemical evolution of metals before and after the PG inclusion into the backfill matrix. A sequential extraction procedure was selected to determine the chemical speciation of metals in phosphate rock, PG, binder and field backfill samples. Dynamics of metals going from phosphate rock and PG to backfill have been evaluated. The results showed that almost all the metals in the PG and binder had been effectively transferred to the backfill. Furthermore, compared to metals taken out along with phosphate rock exploitation, PG-based cemented backfill might bring some metals back but with only little metals in mobile fraction. Additionally, in order to determine the long-term behavior of metals in PG-based cemented backfill, the field samples which were backfilled from 2007 to 2016 were collected and analyzed. The results showed that total amounts of metals in backfill were all within similar range, indicating that the cemented PG backfill could be an effective method to solidify/stabilize metals in PG. Nevertheless, Due to the high water-soluble fractions detected, the concentrations of As, Mn and Zn should be continuously monitored.
[Mh] Termos MeSH primário: Sulfato de Cálcio/química
Monitoramento Ambiental/métodos
Resíduos Industriais/análise
Metais Pesados/análise
Fosfatos/isolamento & purificação
Fósforo/química
[Mh] Termos MeSH secundário: Sulfato de Cálcio/análise
China
Indústrias Extrativas e de Processamento/métodos
Mineração/métodos
Fosfatos/química
Fósforo/análise
Reciclagem/métodos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Industrial Waste); 0 (Metals, Heavy); 0 (Phosphates); 13397-24-5 (phosphogypsum); 27YLU75U4W (Phosphorus); WAT0DDB505 (Calcium Sulfate)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171110
[St] Status:MEDLINE


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[PMID]:29252993
[Au] Autor:Favier V; Zemiti N; Caravaca Mora O; Subsol G; Captier G; Lebrun R; Crampette L; Mondain M; Gilles B
[Ad] Endereço:Montpellier Laboratory of Informatics, Robotics and Microelectonics (LIRMM), ICAR team, French National Centre for Scientific Research (CNRS), Montpellier University, Montpellier, France.
[Ti] Título:Geometric and mechanical evaluation of 3D-printing materials for skull base anatomical education and endoscopic surgery simulation - A first step to create reliable customized simulators.
[So] Source:PLoS One;12(12):e0189486, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:INTRODUCTION: Endoscopic skull base surgery allows minimal invasive therapy through the nostrils to treat infectious or tumorous diseases. Surgical and anatomical education in this field is limited by the lack of validated training models in terms of geometric and mechanical accuracy. We choose to evaluate several consumer-grade materials to create a patient-specific 3D-printed skull base model for anatomical learning and surgical training. METHODS: Four 3D-printed consumer-grade materials were compared to human cadaver bone: calcium sulfate hemihydrate (named Multicolor), polyamide, resin and polycarbonate. We compared the geometric accuracy, forces required to break thin walls of materials and forces required during drilling. RESULTS: All materials had an acceptable global geometric accuracy (from 0.083mm to 0.203mm of global error). Local accuracy was better in polycarbonate (0.09mm) and polyamide (0.15mm) than in Multicolor (0.90mm) and resin (0.86mm). Resin and polyamide thin walls were not broken at 200N. Forces needed to break Multicolor thin walls were 1.6-3.5 times higher than in bone. For polycarbonate, forces applied were 1.6-2.5 times higher. Polycarbonate had a mode of fracture similar to the cadaver bone. Forces applied on materials during drilling followed a normal distribution except for the polyamide which was melted. Energy spent during drilling was respectively 1.6 and 2.6 times higher on bone than on PC and Multicolor. CONCLUSION: Polycarbonate is a good substitute of human cadaver bone for skull base surgery simulation. Thanks to short lead times and reasonable production costs, patient-specific 3D printed models can be used in clinical practice for pre-operative training, improving patient safety.
[Mh] Termos MeSH primário: Endoscopia/métodos
Modelos Anatômicos
Impressão Tridimensional
Base do Crânio/anatomia & histologia
Crânio/anatomia & histologia
[Mh] Termos MeSH secundário: Cadáver
Sulfato de Cálcio/química
Simulação por Computador
Seres Humanos
Nylons/química
Segurança do Paciente
Cimento de Policarboxilato/química
Reprodutibilidade dos Testes
Estresse Mecânico
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Nylons); 0 (Polycarboxylate Cement); 25766-59-0 (polycarbonate); WAT0DDB505 (Calcium Sulfate)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180108
[Lr] Data última revisão:
180108
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171219
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0189486


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[PMID]:28982119
[Au] Autor:Mouthier TMB; Kilic B; Vervoort P; Gruppen H; Kabel MA
[Ad] Endereço:Wageningen University and Research, Laboratory of Food Chemistry, Wageningen, The Netherlands.
[Ti] Título:Potential of a gypsum-free composting process of wheat straw for mushroom production.
[So] Source:PLoS One;12(10):e0185901, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Wheat straw based composting generates a selective substrate for mushroom production. The first phase of this process requires 5 days, and a reduction in time is wished. Here, we aim at understanding the effect of gypsum on the duration of the first phase and the mechanism behind it. Hereto, the regular process with gypsum addition and the same process without gypsum were studied during a 5-day period. The compost quality was evaluated based on compost lignin composition analysed by py-GC/MS and its degradability by a commercial (hemi-)cellulolytic enzyme cocktail. The composting phase lead to the decrease of the pyrolysis products 4-vinylphenol and 4-vinylguaiacol that can be associated with p-coumarates and ferulates linking xylan and lignin. In the regular compost, the enzymatic conversion reached 32 and 39% for cellulose, and 23 and 32% for xylan after 3 and 5 days, respectively. In absence of gypsum similar values were reached after 2 and 4 days, respectively. Thus, our data show that in absence of gypsum the desired compost quality was reached 20% earlier compared to the control process.
[Mh] Termos MeSH primário: Agaricales/crescimento & desenvolvimento
Sulfato de Cálcio/química
Solo/química
[Mh] Termos MeSH secundário: Cromatografia Gasosa-Espectrometria de Massas
Hidrólise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Soil); WAT0DDB505 (Calcium Sulfate)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171006
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0185901


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[PMID]:28843884
[Au] Autor:Mohammadshirazi F; McLaughlin RA; Heitman JL; Brown VK
[Ad] Endereço:Department of Crop and Soil Sciences, Campus Box 7620, North Carolina State University, Raleigh, NC 27695-7620, United States. Electronic address: fmohamm@ncsu.edu.
[Ti] Título:A multi-year study of tillage and amendment effects on compacted soils.
[So] Source:J Environ Manage;203(Pt 1):533-541, 2017 Dec 01.
[Is] ISSN:1095-8630
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Constructing roads and buildings often involves removal of topsoil, grading, and traffic from heavy machinery. The result is exposed, compacted subsoil with low infiltration rate (IR), which hinders post-construction vegetation establishment and generates significant runoff, similar to impervious surfaces. Our goal was to assess tillage and adding amendments for improving density and maintaining perviousness of subsoils compacted during construction. The effects of tillage with and without amendments on (1) soil compaction, (2) IR, and (3) vegetative growth at five sites in North Carolina, USA were evaluated over a period of up to 32 months. The sites, representing a range of soil conditions, were located at three geographic regions; one in the Sandhills (located in Coastal Plain), one in the mountains, and three in the Piedmont. Amendments varied by site and included: (1) compost, (2) cross-linked polyacrylamide (xPAM), and (3) gypsum. Bulk density (BD) and soil penetration resistance (PR) tests were used to characterize soil physical condition. The IR was measured using a Cornell Sprinkle Infiltrometer. Vegetative growth was evaluated by measuring shoot mass and vegetative cover at all sites and root density at the Piedmont sites. Tillage decreased BD and PR compared to the compacted soil at four out of five sites for observations ranging from 24 to 32 months. Compost was applied to four sites prior to tillage and reduced BD in two of them compared to tillage alone. The IR in the tilled plots was maintained at about 3-10 times that of the compacted soil among the five sites over the monitoring periods. Adding amendments did not increase IR relative to tillage alone except at one Piedmont site, where compost and xPAM increased IR at 12 months and compost at 24 months after site establishment. Vegetative responses to tillage and amendments were inconsistent across sites. Results suggest that tillage is a viable option to reduce bulk density and increase infiltration for areas with compacted soils where vegetation is to be established, and that the effect is maintained for at least several years.
[Mh] Termos MeSH primário: Solo
[Mh] Termos MeSH secundário: Sulfato de Cálcio
North Carolina
Poluentes do Solo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Soil); 0 (Soil Pollutants); WAT0DDB505 (Calcium Sulfate)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170828
[St] Status:MEDLINE


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[PMID]:28832651
[Au] Autor:Huang Z; Lu Q; Wang J; Chen X; Mao X; He Z
[Ad] Endereço:College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China.
[Ti] Título:Inhibition of the bioavailability of heavy metals in sewage sludge biochar by adding two stabilizers.
[So] Source:PLoS One;12(8):e0183617, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Agricultural application of sewage sludge (SS) after carbonization is a plausible way for disposal. Despite its benefits of improving soil fertility and C sequestration, heavy metals contained in sewage sludge biochars (SSB) are still a concern. In this study, two types of heavy metal stabilizers were chosen: fulvic acid (FA) and phosphogypsum (with CaSO4, CS, as the main component). The two stabilizers were incorporated into SS prior to 350°C carbonization for 1 h at the rates of 1%, 2%, or 4%. The obtained SSBs were then analyzed by Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). Total and available concentrations of four heavy metals, i.e., Zn, Pb, Cd, and Ni, in the SSBs were determined. In addition, a series of pot soil culture experiments was conducted to investigate the effects of stabilizers incorporation into SSB on heavy metal bioavailability and the uptake by plants (corn as an indicator) and plant biomass yield, with SS and SSB (no stabilizers) as controls. The results showed that incorporation of both FA and CS increased functional groups such as carboxyl, phenol, hydroxyl, amine and quinine groups in the SSBs. The percentage of heavy metals in sulfuric and oxidizable state and residual state of SSBs were significantly increased after carbonization, and hence the mobility of the heavy metals in SSBs was decreased. The introduction of the stabilizers (i.e., FA or CS) significantly lowered the total and available concentrations of Zn, Pb, Cd, and Ni. The reduction in available heavy metal concentration increased with incorporation rate of the stabilizers from 1% to 4%. In the treatments with FA or CS incorporated SSB, less heavy metals were taken up by plants and more plant biomass yields were obtained. The mitigating effects were more pronounced at higher rates of FA or CS stabilizer. These findings provide a way to lower bioavailability of heavy metals in SS or SSB for land application or horticulture as a peat substitute.
[Mh] Termos MeSH primário: Benzopiranos/química
Sulfato de Cálcio/química
Carvão Vegetal
Metais Pesados/farmacocinética
Fósforo/química
Esgotos
[Mh] Termos MeSH secundário: Disponibilidade Biológica
Metais Pesados/química
Espectroscopia Fotoeletrônica
Plantas/metabolismo
Espectroscopia de Infravermelho com Transformada de Fourier
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Benzopyrans); 0 (Metals, Heavy); 0 (Sewage); 0 (biochar); 13397-24-5 (phosphogypsum); 16291-96-6 (Charcoal); 27YLU75U4W (Phosphorus); WAT0DDB505 (Calcium Sulfate); XII14C5FXV (fulvic acid)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171019
[Lr] Data última revisão:
171019
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170824
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0183617


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[PMID]:28651885
[Au] Autor:Sherif RD; Ingargiola M; Sanati-Mehrizy P; Torina PJ; Harmaty MA
[Ad] Endereço:Icahn School of Medicine at Mount Sinai, Department of Surgery, Division of Plastic and Reconstructive Surgery, New York, NY, USA. Electronic address: Rami.sherif@icahn.mssm.edu.
[Ti] Título:Use of antibiotic beads to salvage infected breast implants.
[So] Source:J Plast Reconstr Aesthet Surg;70(10):1386-1390, 2017 Oct.
[Is] ISSN:1878-0539
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:PURPOSE: When an implant becomes infected, implant salvage is often performed where the implant is removed, capsulectomy is performed, and a new implant is inserted. The patient is discharged with a PICC line and 6-8 weeks of intravenous (IV) antibiotics. This method has variable success and subjects the patient to long-term systemic antibiotics. In the 1960s, the use of antibiotic-impregnated beads for the treatment of chronic osteomyelitis was described. These beads deliver antibiotic directly to the site of the infection, thereby eliminating the complications of systemic IV antibiotics. This study aimed to present a case series illustrating the use of STIMULAN calcium sulfate beads loaded with vancomycin and tobramycin to increase the rate of salvage of the infected implant and forgo IV antibiotics. METHODS: A retrospective analysis was performed of patients who were treated at Mount Sinai Hospital for implant infection with salvage and antibiotic beads. RESULTS: Twelve patients were identified, 10 of whom had breast cancer. Comorbidities included hypertension, smoking, and immunocompromised status. Infections were noted anywhere from 5 days to 8 years postoperatively. Salvage was successful in 9 out of the 12 infected implants using antibiotic bead therapy without home IV antibiotics. CONCLUSIONS: The use of antibiotic beads is promising for salvaging infected breast implants without IV antibiotics. Seventy-five percent of the implants were successfully salvaged. Of the three patients who had unsalvageable implants, one was infected with antibiotic-resistant Rhodococcus that was refractory to bead therapy and one was noncompliant with postoperative instructions.
[Mh] Termos MeSH primário: Implante Mamário/efeitos adversos
Implantes de Mama
Sulfato de Cálcio/administração & dosagem
Infecções Relacionadas à Prótese
Tobramicina/administração & dosagem
Vancomicina/administração & dosagem
[Mh] Termos MeSH secundário: Adulto
Antibacterianos/administração & dosagem
Substitutos Ósseos/administração & dosagem
Implante Mamário/métodos
Implantes de Mama/efeitos adversos
Implantes de Mama/microbiologia
Sistemas de Liberação de Medicamentos/métodos
Feminino
Seres Humanos
Microesferas
Meia-Idade
Infecções Relacionadas à Prótese/diagnóstico
Infecções Relacionadas à Prótese/tratamento farmacológico
Infecções Relacionadas à Prótese/etiologia
Estudos Retrospectivos
Terapia de Salvação/métodos
Resultado do Tratamento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Bacterial Agents); 0 (Bone Substitutes); 0 (Stimulan); 6Q205EH1VU (Vancomycin); VZ8RRZ51VK (Tobramycin); WAT0DDB505 (Calcium Sulfate)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170928
[Lr] Data última revisão:
170928
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170628
[St] Status:MEDLINE


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[PMID]:28477825
[Au] Autor:Pan D; Wu H; Yang L
[Ad] Endereço:Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing, 210096, Jiangsu Province, China. Electronic address: 15850656719@163.com.
[Ti] Título:Investigation on the relationship between the fine particle emission and crystallization characteristics of gypsum during wet flue gas desulfurization process.
[So] Source:J Environ Sci (China);55:303-310, 2017 May.
[Is] ISSN:1001-0742
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The relationship between the fine particles emitted after desulfurization and gypsum crystals in the desulfurization slurry was investigated, and the crystallization characteristics varying with the operation parameters and compositions of the desulfurization slurry were discussed. The results showed that the fine particles generated during the desulfurization process were closely related to the crystal characteristics in the desulfurization slurry by comparison of their morphology and elements. With the higher proportion of fine crystals in the desulfurization slurry, the number concentration of fine particles after desulfurization was increased and their particle sizes were smaller, indicating that the optimization of gypsum crystallization was beneficial for the reduction of the fine particle emission. The lower pH value and an optimal temperature of the desulfurization slurry were beneficial to restrain the generation of fine crystals in the desulfurization slurry. In addition, the higher concentrations of the Fe ions and the F ions in the desulfurization slurry both promoted the generation of fine crystals with corresponding change of the morphology and the effect of the Fe ions was more obvious. With the application of the desulfurization synergist additive, it was beneficial for the inhibition of fine crystals while the thinner crystals were generated.
[Mh] Termos MeSH primário: Poluentes Atmosféricos/química
Modelos Químicos
Material Particulado/química
Centrais Elétricas
[Mh] Termos MeSH secundário: Poluentes Atmosféricos/análise
Sulfato de Cálcio
Cristalização
Tamanho da Partícula
Material Particulado/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Air Pollutants); 0 (Particulate Matter); WAT0DDB505 (Calcium Sulfate)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170605
[Lr] Data última revisão:
170605
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170508
[St] Status:MEDLINE


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[PMID]:28441624
[Au] Autor:Shaheen SM; Shams MS; Khalifa MR; El-Dali MA; Rinklebe J
[Ad] Endereço:University of Kafrelsheikh, Faculty of Agriculture, Department of Soil and Water Sciences, 33 516 Kafr El-Sheikh, Egypt; University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water, and Waste Management, Laboratory of Soil, and Groundwater-Manage
[Ti] Título:Various soil amendments and environmental wastes affect the (im)mobilization and phytoavailability of potentially toxic elements in a sewage effluent irrigated sandy soil.
[So] Source:Ecotoxicol Environ Saf;142:375-387, 2017 Aug.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Contamination of long-term sewage effluent irrigated soils by potentially toxic elements (PTEs) is a serious concern due to its high environmental and health risk. Our scientific hypothesis is that soil amendments can cause contradictory effects on the element mobilization and phytoavailability depending on the type of element and amendment. Therefore, we aimed to assess the impact of the application (1%) of several low cost amendments and environmental wastes on the (im)mobilization, availability, and uptake of Al, Cd, Cr, Cu, Fe, Mn, Ni, and Zn by sorghum (Sorghum bicolor) in a long term sewage effluent irrigated sandy soils collected from Egypt. The used materials include activated charcoal (AC), potassium humate (KH), phosphate rock (PR), phosphogypsum (PG), triple superphosphate (TSP), phosphoric acid (PA), sulfur (S), sugar beet factory lime (SBFL), cement bypass kiln dust (CBD), egg shell (ES), bone mill (BM), brick factory residual (BFR), ceramic powder (CP), and drinking water treatment residual (WTR). The mobilization and availability of the elements in the soil were extracted using NH NO and ammonium bicarbonate- diethylene triamine penta acetic acid (AB-DTPA), respectively. The above-ground biomass samples were analyzed for the elements studied. The results confirmed our hypothesis and concluded that although some amendments like S, PA, and TSP can be used for reducing the plant uptake of Al, Cr, and Fe, they might be used with KH for enhancing the phytoextraction of Cd, Cu, Mn, and Ni. Moreover, several wastes such as BFR and WTR might be used for enhancing the phytoextraction of Al, Cd, Cr, Cu, Fe, and Ni and reducing the uptake of Mn from the studied soil. Although SBFL decreased the plant uptake of Al, Fe, Mn, and Zn, it's increased the plant uptake of Cd, Cu, and Ni. Therefore, the amendments which reduce the plant uptake of an element might be suitable candidates for its immobilization, while the amendments which increase the plant uptake of an element might be used for enhancing its phytoextraction when using bioenergy crops like sorghum in similar contaminated sandy soils. The studied materials offered the potential for effective and low cost media for the treatment of PTEs contaminated sewage effluent irrigated sandy soils. These results should be verified in a field study.
[Mh] Termos MeSH primário: Irrigação Agrícola/métodos
Fertilizantes
Metais Pesados/análise
Esgotos/química
Poluentes do Solo/análise
Solo/química
[Mh] Termos MeSH secundário: Compostos de Cálcio/química
Sulfato de Cálcio/química
Carvão Vegetal/química
Produtos Agrícolas/crescimento & desenvolvimento
Produtos Agrícolas/metabolismo
Egito
Metais Pesados/metabolismo
Óxidos/química
Fosfatos/química
Fósforo/química
Poluentes do Solo/metabolismo
Sorghum/crescimento & desenvolvimento
Sorghum/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Calcium Compounds); 0 (Fertilizers); 0 (Metals, Heavy); 0 (Oxides); 0 (Phosphates); 0 (Sewage); 0 (Soil); 0 (Soil Pollutants); 13397-24-5 (phosphogypsum); 16291-96-6 (Charcoal); 27YLU75U4W (Phosphorus); C7X2M0VVNH (lime); WAT0DDB505 (Calcium Sulfate)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170426
[St] Status:MEDLINE



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