Base de dados : MEDLINE
Pesquisa : G16.500.100 [Categoria DeCS]
Referências encontradas : 1380 [refinar]
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[PMID]:28468259
[Au] Autor:Han Z; Li YX; Liu LL; Lu L; Guo XR; Zhang XX; Zhang XY; Qi SH; Xu Y; Qian PY
[Ad] Endereço:Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, 28 Luhuitou Road, Sanya 572000, China. zhuanghan@idsse.ac.cn.
[Ti] Título:Thielavins W-Z7, New Antifouling Thielavins from the Marine-Derived Fungus Thielavia sp. UST030930-004.
[So] Source:Mar Drugs;15(5), 2017 Apr 29.
[Is] ISSN:1660-3397
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:Eleven new depsides-thielavins W-Z ( - ) and thielavins Z1-Z7 ( - )-and also four known thielavins-A, H, J, and K ( - )-were isolated from the ethyl acetate extract of a marine-derived fungal strain sp UST030930-004. All of these compounds were evaluated for antifouling activity against cyprids of the barnacle (= ) . The results showed that compounds 1-3 and 6-13 were active, with EC values ranging from 2.95 ± 0.59 to 69.19 ± 9.51 µM, respectively. The inhibitive effect of compounds - and was reversible. This is the first description of the antifouling activity of thielavins against barnacle cyprids.
[Mh] Termos MeSH primário: Organismos Aquáticos/química
Incrustação Biológica/prevenção & controle
Depsídeos/química
Depsídeos/farmacologia
Fungos/química
Hidroxibenzoatos/química
Hidroxibenzoatos/farmacologia
Sordariales/química
[Mh] Termos MeSH secundário: Animais
Thoracica/efeitos dos fármacos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Depsides); 0 (Hydroxybenzoates)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180228
[Lr] Data última revisão:
180228
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170505
[St] Status:MEDLINE


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[PMID]:29251479
[Au] Autor:Thiyagarajan S; Bavya M; Jamal A
[Ti] Título:Isolation of marine fungi Aspergillus sp. and its in vitro antifouling activity against marine bacteria.
[So] Source:J Environ Biol;37(5):895-903, 2016 09.
[Is] ISSN:0254-8704
[Cp] País de publicação:India
[La] Idioma:eng
[Ab] Resumo:Biofouling is considered as a main issue of concern in aquatic environment causing severe economic loss and pollution. The aim of the present study was to isolate marine fungus antagonistic to biofouling bacteria and to define antifouling compounds present in it. Using standard plate method five predominant biofouling bacteria viz., Methylococcus sp., Flavobacterium sp., Marinococcus sp., Serratia sp. and Pseudomonas sp. were isolated from marine solid substances on Zobell's agar. Tolerance range of these bacteria to NaCl was 2-10%. Isolation of fungi from mangrove and estuarine sediments and their screening identified Aspergillus sp. EF4 as a potential isolate. This isolate caused inhibition of all the five test bacterial cultures measuring zone diameters respectively of 11, 16, 12, 13 and 11mm.? Subsequent to submerged fermentation using shaking flask method this fungus produced bioactive compounds within 5 days. The culture parameters optimized were raffinose as carbon source, yeast extract as lone nitrogen source, pH up to 9.0 and temperature up to 40?C. Antifouling compounds of culture filtrate were separated and detected by a three-step procedure involving thin layer chromatography, bioautography and preparative TLC. The in vitro assay involving glass slide-wooden stick-biofilm method revealed that these compounds could cause inhibition and destruction of bacteria to an extent of 2.16 x 104 CFU ml-1 and 2.46 x 104 CFU ml-1 respectively while growth of bacteria in control beaker was enumerated to be 4.41 x 104 CFU ml-1. High performance liquid chromatography of culture filtrate indicated probable principal antifouling compound as Fumonisin B2. Isolation of antagonistic marine fungus from Indian coast and detection of its antifouling compound would help in planning effective strategies for controlling biofouling in marine environment.
[Mh] Termos MeSH primário: Antibiose
Aspergillus/fisiologia
Bactérias/classificação
Incrustação Biológica
[Mh] Termos MeSH secundário: Organismos Aquáticos
Fenômenos Fisiológicos Bacterianos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180222
[Lr] Data última revisão:
180222
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171219
[St] Status:MEDLINE


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[PMID]:29406122
[Au] Autor:Wang X; Ma B; Bai Y; Lan H; Liu H; Qu J
[Ad] Endereço:Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
[Ti] Título:Comparison of the effects of aluminum and iron(III) salts on ultrafiltration membrane biofouling in drinking water treatment.
[So] Source:J Environ Sci (China);63:96-104, 2018 Jan.
[Is] ISSN:1001-0742
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Coagulation plays an important role in alleviating membrane fouling, and a noticeable problem is the development of microorganisms after long-time operation, which gradually secrete extracellular polymeric substances (EPS). To date, few studies have paid attention to the behavior of microorganisms in drinking water treatment with ultrafiltration (UF) membranes. Herein, the membrane biofouling was investigated with different aluminum and iron salts. We found that Al (SO ) ·18H O performed better in reducing membrane fouling due to the slower growth rate of microorganisms. In comparison to Al (SO ) ·18H O, more EPS were induced with Fe (SO ) ·xH O, both in the membrane tank and the sludge on the cake layer. We also found that bacteria were the major microorganisms, of which the concentration was much higher than those of fungi and archaea. Further analyses showed that Proteobacteria was dominant in bacterial communities, which caused severe membrane fouling by forming a biofilm, especially for Fe (SO ) ·xH O. Additionally, the abundances of Bacteroidetes and Verrucomicrobia were relatively higher in the presence of Al (SO ) ·18H O, resulting in less severe biofouling by effectively degrading the protein and polysaccharide in EPS. As a result, in terms of microorganism behaviors, Al-based salts should be given preference as coagulants during actual operations.
[Mh] Termos MeSH primário: Incrustação Biológica
Ferro/química
Sais/química
Purificação da Água/métodos
[Mh] Termos MeSH secundário: Alumínio
Ultrafiltração
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Salts); CPD4NFA903 (Aluminum); E1UOL152H7 (Iron)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180216
[Lr] Data última revisão:
180216
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180207
[St] Status:MEDLINE


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[PMID]:29182016
[Au] Autor:Wang D; Wu X; Long L; Yuan X; Zhang Q; Xue S; Wen S; Yan C; Wang J; Cong W
[Ad] Endereço:a School of Food Engineering and Biological Technology , Tianjin University of Science & Technology , Tianjin , P.R. China.
[Ti] Título:Improved antifouling properties of photobioreactors by surface grafted sulfobetaine polymers.
[So] Source:Biofouling;33(10):970-979, 2017 11.
[Is] ISSN:1029-2454
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:To improve the antifouling (AF) properties of photobioreactors (PBR) for microalgal cultivation, using trihydroxymethyl aminomethane (tris) as the linking agent, a series of polyethylene (PE) films grafted with sulfobetaine (PE-SBMA) with grafting density ranging from 23.11 to 112 µg cm were prepared through surface-initiated atom transfer radical polymerization (SI-ATRP). It was found that the contact angle of PE-SBMA films decreased with the increase in the grafting density. When the grafting density was 101.33 µg cm , it reached 67.27°. Compared with the PE film, the adsorption of protein on the PE-SBMA film decreased by 79.84% and the total weight of solid and absorbed microalgae decreased by 54.58 and 81.69%, respectively. Moreover, the transmittance of PE-SBMA film recovered to 86.03% of the initial value after cleaning, while that of the PE film recovered to only 47.27%. The results demonstrate that the AF properties of PE films were greatly improved on polySBMA-grafted surfaces.
[Mh] Termos MeSH primário: Betaína/análogos & derivados
Incrustação Biológica/prevenção & controle
Microalgas/efeitos dos fármacos
Fotobiorreatores
[Mh] Termos MeSH secundário: Adsorção
Betaína/farmacologia
Microalgas/fisiologia
Polietileno/química
Polímeros/química
Polímeros/farmacologia
Proteínas
Propriedades de Superfície
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Polymers); 0 (Proteins); 3SCV180C9W (Betaine); 8CVU22OCJW (sulfobetaine); 9002-88-4 (Polyethylene)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180215
[Lr] Data última revisão:
180215
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171129
[St] Status:MEDLINE
[do] DOI:10.1080/08927014.2017.1394457


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[PMID]:28468513
[Au] Autor:Al Ashhab A; Sweity A; Bayramoglu B; Herzberg M; Gillor O
[Ad] Endereço:a Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research , Ben-Gurion University of the Negev , Midreshet Ben Gurion , Israel.
[Ti] Título:Biofouling of reverse osmosis membranes: effects of cleaning on biofilm microbial communities, membrane performance, and adherence of extracellular polymeric substances.
[So] Source:Biofouling;33(5):397-409, 2017 05.
[Is] ISSN:1029-2454
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Laboratory-scale reverse osmosis (RO) flat-sheet systems were used with two parallel flow cells, one treated with cleaning agents and a control (ie undisturbed). The cleaning efforts increased the affinity of extracellular polymeric substances (EPS) to the RO membrane and altered the biofilm surface structure. Analysis of the membrane biofilm community composition revealed the dominance of Proteobacteria. However, within the phylum Proteobacteria, γ-Proteobacteria dominated the cleaned membrane biofilm, while ß-Proteobacteria dominated the control biofilm. The composition of the fungal phyla was also altered by cleaning, with enhancement of Ascomycota and suppression of Basidiomycota. The results suggest that repeated cleaning cycles select for microbial groups that strongly attach to the RO membrane surface by producing rigid and adhesive EPS that hampers membrane performance.
[Mh] Termos MeSH primário: Aderência Bacteriana/efeitos dos fármacos
Biofilmes/efeitos dos fármacos
Incrustação Biológica/prevenção & controle
Detergentes/farmacologia
Membranas Artificiais
Proteobactérias/efeitos dos fármacos
[Mh] Termos MeSH secundário: Ascomicetos/efeitos dos fármacos
Ascomicetos/crescimento & desenvolvimento
Ascomicetos/fisiologia
Filtração
Osmose
Polímeros/química
Proteobactérias/crescimento & desenvolvimento
Purificação da Água/métodos
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
0 (Detergents); 0 (Membranes, Artificial); 0 (Polymers)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:180215
[Lr] Data última revisão:
180215
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170505
[St] Status:MEDLINE
[do] DOI:10.1080/08927014.2017.1318382


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[PMID]:28466544
[Au] Autor:Loza-Correa M; Kalab M; Yi QL; Eltringham-Smith LJ; Sheffield WP; Ramirez-Arcos S
[Ad] Endereço:Canadian Blood Services, Centre for Innovation, Ottawa, ON, Canada.
[Ti] Título:Comparison of bacterial attachment to platelet bags with and without preconditioning with plasma.
[So] Source:Vox Sang;112(5):401-407, 2017 Jul.
[Is] ISSN:1423-0410
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND AND OBJECTIVES: Canadian Blood Services produces apheresis and buffy coat pooled platelet concentrates (PCs) stored in bags produced by two different manufacturers (A and B, respectively), both made of polyvinyl chloride-butyryl trihexyl citrate. This study was aimed at comparing Staphylococcus epidermidis adhesion to the inner surface of both bag types in the presence or absence of plasma factors. MATERIALS AND METHODS: Sets (N = 2-6) of bags type A and B were left non-coated (control) or preconditioned with platelet-rich, platelet-poor or defibrinated plasma (PRP, PPP and DefibPPP, respectively). Each bag was inoculated with a 200-ml S. epidermidis culture adjusted to 0·5 colony-forming units/ml. Bags were incubated under platelet storage conditions for 7 days. After culture removal, bacteria attached to the plastic surface were either dislodged by sonication for bacterial quantification or examined in situ by scanning electron microscopy (SEM). RESULTS: Higher bacterial adhesion was observed to preconditioned PC bags than control containers for both bag types (P < 0·0001). Bacterial attachment to preconditioned bags was confirmed by SEM. Bacteria adhered equally to both types of containers in the presence of PRP, PPP and DefibPPP residues (P > 0·05). By contrast, a significant increase in bacterial adherence was observed to type A bags compared with type B bags in the absence of plasma (P < 0·05) [Correction added on 16 June 2017, after first online publication: this sentence has been corrected]. CONCLUSION: The ability of S. epidermidis to adhere to preconditioned platelet collection bags depends on the presence of plasma factors. Future efforts should be focused on reducing plasma proteins' attachment to platelet storage containers to decrease subsequent bacterial adhesion.
[Mh] Termos MeSH primário: Incrustação Biológica/prevenção & controle
Plaquetas
Preservação de Sangue/instrumentação
Staphylococcus epidermidis/fisiologia
[Mh] Termos MeSH secundário: Aderência Bacteriana
Materiais Revestidos Biocompatíveis
Seres Humanos
Plasma/química
Cloreto de Polivinila/química
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Coated Materials, Biocompatible); 9002-86-2 (Polyvinyl Chloride)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180201
[Lr] Data última revisão:
180201
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170504
[St] Status:MEDLINE
[do] DOI:10.1111/vox.12513


  7 / 1380 MEDLINE  
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[PMID]:28741939
[Au] Autor:Pandit S; Shanbhag S; Mauter M; Oren Y; Herzberg M
[Ad] Endereço:Zuckerberg Institute for Water Research, Blaustein Institutes for Desert Research, Ben Gurion University of the Negev , Midreshet Ben Gurion 84990, Israel.
[Ti] Título:Influence of Electric Fields on Biofouling of Carbonaceous Electrodes.
[So] Source:Environ Sci Technol;51(17):10022-10030, 2017 Sep 05.
[Is] ISSN:1520-5851
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Biofouling commonly occurs on carbonaceous capacitive deionization electrodes in the process of treating natural waters. Although previous work reported the effect of electric fields on bacterial mortality for a variety of medical and engineered applications, the effect of electrode surface properties and the magnitude and polarity of applied electric fields on biofilm development has not been comprehensively investigated. This paper studies the formation of a Pseudomonas aeruginosa biofilm on a Papyex graphite (PA) and a carbon aerogel (CA) in the presence and the absence of an electric field. The experiments were conducted using a two-electrode flow cell with a voltage window of ±0.9 V. The CA was less susceptible to biofilm formation compared to the PA due to its lower surface roughness, lower hydrophobicity, and significant antimicrobial properties. For both positive and negative applied potentials, we observed an inverse relationship between biofilm formation and the magnitude of the applied potential. The effect is particularly strong for the CA electrodes and may be a result of cumulative effects between material toxicity and the stress experienced by cells at high applied potentials. Under the applied potentials for both electrodes, high production of endogenous reactive oxygen species (ROS) was indicative of bacterial stress. For both electrodes, the elevated specific ROS activity was lowest for the open circuit potential condition, elevated when cathodically and anodically polarized, and highest for the ±0.9 V cases. These high applied potentials are believed to affect the redox potential across the cell membrane and disrupt redox homeostasis, thereby inhibiting bacterial growth.
[Mh] Termos MeSH primário: Incrustação Biológica
Eletrodos
[Mh] Termos MeSH secundário: Carbono
Eletricidade
Grafite
Purificação da Água
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
7440-44-0 (Carbon); 7782-42-5 (Graphite)
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171218
[Lr] Data última revisão:
171218
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170726
[St] Status:MEDLINE
[do] DOI:10.1021/acs.est.6b06339


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[PMID]:29191317
[Au] Autor:Chen L; Lam JCW
[Ad] Endereço:State Key Laboratory in Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China. Electronic address: lianchen@cityu.edu.hk.
[Ti] Título:SeaNine 211 as antifouling biocide: A coastal pollutant of emerging concern.
[So] Source:J Environ Sci (China);61:68-79, 2017 Nov.
[Is] ISSN:1001-0742
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:SeaNine 211, with 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT) being the biocidal ingredient, is a widely-used antifouling agent to deter the undesirable biofouling phenomenon. It is commercially promoted as an environmentally acceptable antifoulant mainly due to its claimed rapid degradation in marine environment. However, increasing researches document varying degradative kinetics in different environments, proving that SeaNine 211 is actually not degraded equally fast around the world (half-life between <1day and 13.1days). Large-scale application of SeaNine 211 in antifouling coatings has also caused global contamination of marine environment in various compartments. For example, accumulation of SeaNine 211 is detected as high as 3700ng/L in Spanish seawater and 281ng/g dry weight in Korean sediment. Considering that SeaNine 211 is highly toxic against non-target marine organisms, environmental risk assessment finds that most marine organisms are endangered by SeaNine 211 in worst-case scenario. Its endocrine disrupting and reproductive impairing effects at environmentally worst-case concentrations further constitute a long-term threat to the maintenance of population stability. Therefore, in the light of the varying degradability, environmental pollution and high toxicity, especially the endocrine disruption, SeaNine 211 as an antifouling agent is likely to cause non-negligible damages to the marine ecosystem. There is an urgency to perform a systematic ecological risk assessment of SeaNine 211 to prevent the potential impacts on the health of marine environment. A regular monitoring also becomes necessary to place the usage of antifouling biocides under control.
[Mh] Termos MeSH primário: Desinfetantes/análise
Tiazóis/análise
Poluentes Químicos da Água/análise
[Mh] Termos MeSH secundário: Organismos Aquáticos
Incrustação Biológica
Desinfetantes/toxicidade
Ecossistema
Disruptores Endócrinos/análise
Disruptores Endócrinos/toxicidade
Monitoramento Ambiental
Água do Mar
Tiazóis/toxicidade
Poluentes Químicos da Água/toxicidade
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Disinfectants); 0 (Endocrine Disruptors); 0 (Thiazoles); 0 (Water Pollutants, Chemical); 64359-81-5 (Kathon 930)
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171207
[Lr] Data última revisão:
171207
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171202
[St] Status:MEDLINE


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[PMID]:28902894
[Au] Autor:Ochi Agostini V; Ritter MDN; José Macedo A; Muxagata E; Erthal F
[Ad] Endereço:Laboratório de Zooplâncton, Instituto de Oceanografia, Universidade Federal do Rio Grande (FURG), Rio Grande, Rio Grande do Sul, Brazil.
[Ti] Título:What determines sclerobiont colonization on marine mollusk shells?
[So] Source:PLoS One;12(9):e0184745, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Empty mollusk shells may act as colonization surfaces for sclerobionts depending on the physical, chemical, and biological attributes of the shells. However, the main factors that can affect the establishment of an organism on hard substrates and the colonization patterns on modern and time-averaged shells remain unclear. Using experimental and field approaches, we compared sclerobiont (i.e., bacteria and invertebrate) colonization patterns on the exposed shells (internal and external sides) of three bivalve species (Anadara brasiliana, Mactra isabelleana, and Amarilladesma mactroides) with different external shell textures. In addition, we evaluated the influence of the host characteristics (mode of life, body size, color alteration, external and internal ornamentation and mineralogy) of sclerobionts on dead mollusk shells (bivalve and gastropod) collected from the Southern Brazilian coast. Finally, we compared field observations with experiments to evaluate how the biological signs of the present-day invertebrate settlements are preserved in molluscan death assemblages (incipient fossil record) in a subtropical shallow coastal setting. The results enhance our understanding of sclerobiont colonization over modern and paleoecology perspectives. The data suggest that sclerobiont settlement is enhanced by (i) high(er) biofilm bacteria density, which is more attracted to surfaces with high ornamentation; (ii) heterogeneous internal and external shell surface; (iii) shallow infaunal or attached epifaunal life modes; (iv) colorful or post-mortem oxidized shell surfaces; (v) shell size (<50 mm2 or >1,351 mm2); and (vi) calcitic mineralogy. Although the biofilm bacteria density, shell size, and texture are considered the most important factors, the effects of other covarying attributes should also be considered. We observed a similar pattern of sclerobiont colonization frequency over modern and paleoecology perspectives, with an increase of invertebrates occurring on textured bivalve shells. This study demonstrates how bacterial biofilms may influence sclerobiont colonization on biological hosts (mollusks), and shows how ecological relationships in marine organisms may be relevant for interpreting the fossil record of sclerobionts.
[Mh] Termos MeSH primário: Exoesqueleto/parasitologia
Moluscos/parasitologia
[Mh] Termos MeSH secundário: Exoesqueleto/anatomia & histologia
Exoesqueleto/microbiologia
Animais
Incrustação Biológica
Tamanho Corporal
Cor
Interações Hospedeiro-Parasita
Moluscos/anatomia & histologia
Moluscos/microbiologia
Propriedades de Superfície
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171024
[Lr] Data última revisão:
171024
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170914
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0184745


  10 / 1380 MEDLINE  
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[PMID]:28847083
[Au] Autor:Zhou L; Zhuang WQ; Wang X; Yu K; Yang S; Xia S
[Ad] Endereço:College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China; Shenzhen Academy of Environmental Sciences, Shenzhen 518001, PR China. Electronic address: pakerzhou@gmail.com.
[Ti] Título:New insights into comparison between synthetic and practical municipal wastewater in cake layer characteristic analysis of membrane bioreactor.
[So] Source:Bioresour Technol;244(Pt 1):934-940, 2017 Nov.
[Is] ISSN:1873-2976
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:In previous studies, cake layer analysis in membrane bioreactor (MBR) was both carried out with synthetic and practical municipal wastewater (SMW and PMW), leading to different results. This study aimed to identify the comparison between SMW and PMW in cake layer characteristic analysis of MBR. Two laboratory-scale anoxic/oxic MBRs were operated for over 90days with SMW and PMW, respectively. Results showed that PMW led to rough cake layer surface with particles, and the aggravation of cake layer formation with thinner and denser cake layer. Additionally, inorganic components, especially Si and Al, in PMW accumulated into cake layer and strengthened the cake layer structure, inducing severer biofouling. However, SMW promoted bacterial metabolism during cake layer formation, thus aggravated the accumulation of organic components into cake layer. Therefore, SMW highlighted the organic components in cake layer, but weakened the inorganic functions in practical MBR operation.
[Mh] Termos MeSH primário: Incrustação Biológica
Reatores Biológicos
Águas Residuais
[Mh] Termos MeSH secundário: Membranas Artificiais
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Membranes, Artificial); 0 (Waste Water)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171023
[Lr] Data última revisão:
171023
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170830
[St] Status:MEDLINE



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