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https://www.readbyqxmd.com/read/28551206/study-of-the-plasma-proteome-of-atlantic-cod-gadus-morhua-effect-of-exposure-to-two-pahs-and-their-corresponding-diols
#1
Karianne Skogland Enerstvedt, Magne O Sydnes, Daniela M Pampanin
Occurrence of polycyclic aromatic hydrocarbon (PAH) contamination in the marine environment represents a risk to marine life and humans. In this study, plasma samples from Atlantic cod (Gadus morhua) were analysed by shotgun mass spectrometry to investigate the plasma proteome in response to exposure to single PAHs (naphthalene or chrysene) and their corresponding metabolites (dihydrodiols). In total, 369 proteins were identified and ranked according to their relative abundance. The levels of 12 proteins were found significantly altered in PAH exposed fish and are proposed as new biomarker candidates...
May 19, 2017: Chemosphere
https://www.readbyqxmd.com/read/28551205/remediation-of-water-contaminated-with-diesel-oil-using-a-coupled-process-biological-degradation-followed-by-heterogeneous-fenton-like-oxidation
#2
Yuan Chen, Jiajiang Lin, Zuliang Chen
The treatment of a synthetically prepared wastewater containing diesel oil has been investigated using combined treatment schemes based on the biological treatment followed by an advanced oxidation process. 78% of diesel oil was degraded by Acinetobacter venetianus in 96 h, while the removal efficiency of chemical oxygen demand (COD) in the aqueous phase was only 56.8%, indicating that degraded metabolites existed in solution. To solve this problem, a Fenton-like system consisting of nanoscale zero-valent iron (nZVI) and hydrogen peroxide was used for further oxidation of the metabolites after biodegradation...
May 22, 2017: Chemosphere
https://www.readbyqxmd.com/read/28549326/electrochemical-decolorization-of-methyl-red-by-ruo2-iro2-tio2-electrode-and-biodegradation-with-pseudomonas-stutzeri-mn1-and-acinetobacter-baumannii-mn3-an-integrated-approach
#3
Kuppusamy Sathishkumar, Sivaji Sathiyaraj, Punniyakotti Parthipan, Agrawal Akhil, Kadarkarai Murugan, Aruliah Rajasekar
Textile effluent consists of enormous quantities of toxic dyes, which are being discharged into natural aqueous system and thus contaminate the water quality. Hence it is important to develop an eco-friendly and cost effective technology to treat the dyes contaminated wastewater. In this research, an integrated approach of electrochemical oxidation (EO) and biodegradation process (BP) was studied of methyl red (MR) dye. In EO, RuO2-IrO2-TiO2 is used as anode and titanium mesh electrode as cathode. This was followed by BP of the treated EO effluent...
May 15, 2017: Chemosphere
https://www.readbyqxmd.com/read/28547539/cultivation-of-scenedesmus-dimorphus-using-anaerobic-digestate-as-a-nutrient-medium
#4
Husam A Abu Hajar, R Guy Riefler, Ben J Stuart
In this study, the microalga Scenedesmus dimorphus was cultivated phototrophically using unsterilized anaerobic digestate as a nutrient medium. A bench-scale experiment was conducted by inoculating the microalga S. dimorphus with 0.05-10% dilutions of the anaerobic digestate supernatant. It was found that 1.25-2.5% dilutions, which is equivalent to 50-100 mg N/L total nitrogen concentrations and 6-12 mg P/L total phosphorus concentrations, provided sufficient nutrients to maximize the growth rate along with achieving high concentrations of algal biomass...
May 25, 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28545861/characterization-of-autonomous-families-of-tc1-mariner-transposons-in-neoteleost-genomes
#5
Bo Gao, Wei Chen, Dan Shen, Saisai Wang, Cai Chen, Li Zhang, Wei Wang, Xiaoyan Wang, Chengyi Song
We report the comprehensive analysis of Tc1/mariner transposons in six species of neoteleost (cod, tetraodon, fugu, medaka, stickleback, and tilapia) for which draft sequences are available. In total, 33 Tc1/mariner families were identified in these neoteleost genomes, with 3-7 families in each species. Thirty of these are in full length and designed as autonomous families, and were classified into the DD34E (Tc1) and DD×D (pogo) groups. The DD34E (Tc1) group was further classified into five clusters (Passport-like, SB-like, Frog Prince-like, Minos-like, and Bari-like)...
May 22, 2017: Marine Genomics
https://www.readbyqxmd.com/read/28545606/nitrite-interference-with-soluble-cod-measurements-from-aerobically-treated-wastewater
#6
Fernanda M Ferraz, Qiuyan Yuan
  This study aimed to determine the interference of nitrite (<inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="00549-ilm01.gif"/>) with soluble chemical oxygen demand (COD) measurements from the effluent of landfill leachate treated by sequencing batch reactors (SBRs). Synthetic wastewater assimilating young and old landfill leachate was used as influent for SBR1 and SBR2, respectively. A mixture of raw wastewater and landfill leachate was used as influent for SBR3. Due to the high ammonia concentration in the influent, different levels of partial nitrification were observed in all the reactors and <inline-graphic xmlns:xlink="http://www...
June 1, 2017: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/28541951/seasonal-variation-of-microbial-community-for-the-treatment-of-tail-water-in-constructed-wetland
#7
Kang Liang, Yanran Dai, Feihua Wang, Wei Liang
Effects of seasons and hydraulic loading rates (HLR) on the treatment performance and the response of the microbial community of vertical flow constructed wetland treating tail water were investigated. The seasonal treatment performance was evaluated at four HLR of 125, 250, 375 and 500 mm/d, respectively. The microbial community was detected by MiSeq Illumina platform at HLR 125 and 375 mm/d. The wetland showed significantly higher chemical oxygen demand (COD) and total nitrogen (TN), total phosphorus (TP) at HLR 125 mm/d, compared with other HLR...
May 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28541934/evaluation-of-ageratum-conyzoides-in-field-scale-constructed-wetlands-cws-for-domestic-wastewater-treatment
#8
A S Tilak, Suhas P Wani, A Datta, M D Patil, M Kaushal, K R Reddy
Ageratum conyzoides were evaluated in field scale subsurface flow constructed wetlands (CWs) to quantify its nitrogen (N) and phosphorus (P) uptake and compare with wetland plants (Pistia stratiotes, Typha latifolia and Canna indica). The two-field scale subsurface flow CWs, located in the International Crops Research Institute for Semi-Arid Tropics, received wastewater from an urban colony. The CW1 and CW2 had the same dimensions (length:10 m, width:3 m, total depth:1.5 m and sand and gravel:1 m), similar flow rates (3 m(3)/d), hydraulic loading rates (HLRs-10 cm/d) and hydraulic retention time (HRT-5 days) from July 2014-August 2015...
May 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28541715/biodegradation-and-kinetics-of-organic-compounds-and-heavy-metals-in-an-artificial-wetland-system-aws-by-using-water-hyacinths-as-a-biological-filter
#9
P F Rodríguez-Espinosa, J A Mendoza-Pérez, J Tabla-Hernandez, E Martínez-Tavera, M M Monroy-Mendieta
The objective of the present study was to investigate the ability of water hyacinth (Eichhornia crassipes) to absorb organic compounds (potassium hydrogen phthalate, sodium tartrate, malathion, 2,4-D and piroxicam). For the aforementioned purpose, an artificial wetland system (AWS) was constructed and filled with water hyacinth collected from Valsequillo Reservoir, Puebla, Mexico. Potassium hydrogen phthalate and sodium tartrate were measured in terms of Chemical Oxygen Demand (COD) and the Biological Oxygen Demand (BOD)...
May 25, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28541331/cod-stocks-don-t-derail-cod-s-comeback-in-canada
#10
Sherrylynn Rowe, George A Rose
No abstract text is available yet for this article.
May 24, 2017: Nature
https://www.readbyqxmd.com/read/28540423/direct-treatment-of-high-strength-soft-drink-wastewater-using-a-down-flow-hanging-sponge-reactor-performance-and-microbial-community-dynamics
#11
Junhui Liao, Curtis Fang, Jimmy Yu, Arun Sathyagal, Eric Willman, Wen-Tso Liu
A stand-alone down-flow hanging sponge (DHS) system with a two-stage configuration was operated for 700 days to treat synthetic soft drink wastewater at 3000 mg/L chemical oxygen demand (COD). Throughout the operation, >90% COD and total organic carbon (TOC) removal efficiency was obtained by the first stage, and a final effluent of COD <60 mg/L (TOC <20 mg/L) was consistently maintained with the second stage. Lower organic removal efficiency was observed to closely correlate with lower pH, higher volatile fatty acid (VFA) concentration, and higher suspended solid (SS) in the effluent...
May 24, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28539105/removal-of-sulfamethoxazole-and-diclofenac-from-water-strategies-involving-o3-and-h2o2
#12
Daniela S Gomes, Licínio M Gando-Ferreira, Rosa M Quinta-Ferreira, Rui C Martins
Diclofenac (DCF) and Sulfamethoxazole (SMX) are two of the most frequently detected pharmaceutical compounds in water and are hardly removed by biological treatment systems. The presence of H2O2 was investigated in the ozonation of these two compounds. Experiments were carried out with both using distillated water and secondary effluent from a municipal wastewater treatment plant (WWTP) spiked with pharmaceuticals. Chemical oxygen demand (COD) abatement rate improved when H2O2 was added at the beginning of the ozonation process and when the ozone inlet concentration increased, attaining a maximum value of 91% and simultaneously a lower ozone waste for a H2O2 initial concentration of 5 mM and an ozone inlet concentration of 20 g Nm(-3)...
May 25, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28539097/removal-of-organic-matter-from-stabilized-landfill-leachate-using-coagulation-flocculation-fenton-coupled-with-activated-charcoal-adsorption
#13
Ahmad Razali Ishak, Fauziah Shahul Hamid, Sharifah Mohamad, Kheng Soo Tay
The treatment of stabilized landfill leachate (SLL) by conventional biological treatment is often inefficient due to the presence of bio-recalcitrant substances. In this study, the feasibility of coagulation-flocculation coupled with the Fenton reaction in the treatment of SLL was evaluated. The efficiency of the selected treatment methods was evaluated through total organic carbon (TOC) removal from SLL. With ferric chloride as the coagulant, coagulation-flocculation was found to achieve the highest TOC removal of 71% at pH 6...
May 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28537020/comparison-of-experimental-ponds-for-the-treatment-of-dye-wastewater-under-controlled-and-semi-natural-conditions
#14
Dina A Yaseen, Miklas Scholz
This study compares the performance of simulated shallow ponds vegetated with Lemna minor L. under controlled and semi-natural conditions for the treatment of simulated wastewater containing textile dyes. The objectives were to assess the water quality outflow parameters, the potential of L. minor concerning the removal of chemical oxygen demand (COD) and four azo dyes (Acid blue 113, reactive blue 198, Direct Orange 46 and Basic Red 46) and the plants' growth rate. Findings show that all mean outflow values of COD, total dissolved solids (TDS) and electrical conductivity (EC) were significantly (p < 0...
May 23, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28531658/co-plantation-of-aquatic-macrophytes-typha-angustifolia-and-paspalum-scrobiculatum-for-effective-treatment-of-textile-industry-effluent
#15
Vishal V Chandanshive, Niraj R Rane, Asif S Tamboli, Avinash R Gholave, Rahul V Khandare, Sanjay P Govindwar
Field treatment of textile industry effluent was carried out in constructed drenches (91.4m×1.2m×0.6m; 65.8m(3)) planted independently with Typha angustifolia, Paspalum scrobiculatum and their co-plantation (consortium-TP). The in situ treatment of effluent by T. angustifolia, P. scrobiculatum and consortium-TP was found to decrease ADMI color value by 62, 59 and 76%, COD by 65, 63 and 70%, BOD by 68, 63 and 75%, TDS by 45, 39 and 57%, and TSS by 35, 31 and 47%, respectively within 96h. Heavy metals such as arsenic, cadmium, chromium and lead were also removed up to 28-77% after phytoremediation...
May 12, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28531177/geographical-trends-of-pfas-in-cod-livers-along-the-norwegian-coast
#16
Stig Valdersnes, Bente M Nilsen, Joar F Breivik, Asbjørn Borge, Amund Maage
The level of perfluorinated alkyl substances (PFAS) was determined in North East Arctic cod (Gadus morhua) liver samples from 15 Norwegian fjords and harbors. Five harbors in the eastern part of Norway, six harbors in the western part and four harbours in the northern part. A total of 200 samples were analyzed for 16 PFAS. Determination of PFAS were carried out by LC-MS/MS following sample clean up by solid phase extraction and ultracentrifugation. The predominating PFAS was PFOS, which was found to be higher than the level of quantification (1...
2017: PloS One
https://www.readbyqxmd.com/read/28530564/a-new-method-for-the-rapid-detection-of-atlantic-cod-gadus-morhua-pacific-cod-gadus-macrocephalus-alaska-pollock-gadus-chalcogrammus-and-ling-molva-molva-using-a-lateral-flow-dipstick-assay
#17
Ledicia Taboada, Ana Sánchez, Ricardo I Pérez-Martín, Carmen G Sotelo
Species-specific lateral flow dipstick (LFD) assays for the identification of Atlantic cod (Gadus morhua), Pacific cod (Gadus macrocephalus), Alaska pollock (Gadus chalcogrammus) and ling (Molva molva) in food products were developed. The method comprises a PCR system with four sets of specific primers, for each target species. This step was also devised to dual-labeling of PCR products with biotin and 6-FAM, which are then easily read on a lateral flow dipstick, upon which these products are immobilized by a fixed biotin-ligand and visualized with anti-FAM antibody-coated gold nanoparticles...
October 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28528902/x-cells-are-globally-distributed-genetically-divergent-fish-parasites-related-to-perkinsids-and-dinoflagellates
#18
Mark A Freeman, Janina Fuss, Árni Kristmundsson, Marit F M Bjorbækmo, Jean-François Mangot, Javier Del Campo, Patrick J Keeling, Kamran Shalchian-Tabrizi, David Bass
"X-cells" have long been associated with tumor-like formations (xenomas) in marine fish, including many of commercial interest. The name was first used to refer to the large polygonal cells that were found in epidermal xenomas from flatfish from the Pacific Northwest [1]. Similar looking cells from pseudobranchial xenomas had previously been reported from cod in the Atlantic [2] and Pacific Oceans [3]. X-cell pathologies have been reported from five teleost orders: Pleuronectiformes (flatfish), Perciformes (perch-like fish), Gadiformes (cods), Siluriformes (catfish), and Salmoniformes (salmonids)...
May 13, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28527425/effects-of-the-summer-holiday-season-on-uv-filter-and-illicit-drug-concentrations-in-the-korean-wastewater-system-and-aquatic-environment
#19
Ki Yong Kim, Kalu Ibe Ekpeghere, Hee-Jin Jeong, Jeong-Eun Oh
Seasonal variations in the concentrations of eight ultraviolet (UV) filters and 22 illicit drugs including their metabolites in the Korean aquatic environment were investigated. Seawater samples from three beaches, water samples from two rivers, and influents and effluents from three wastewater treatment plants were analyzed. The UV filter concentrations in the seawater, river water, and effluent samples were 39.4-296, 35.4-117, and 6.84-51.1 ng L(-1), respectively. The total UV filter concentrations in the seawater samples were 1...
May 17, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28526899/electricity-generation-from-real-industrial-wastewater-using-a-single-chamber-air-cathode-microbial-fuel-cell-with-an-activated-carbon-anode
#20
Hend Omar Mohamed, M Obaid, Enas Taha Sayed, Yang Liu, Jinpyo Lee, Mira Park, Nasser A M Barakat, Hak Yong Kim
This study introduces activated carbon (AC) as an effective anode for microbial fuel cells (MFCs) using real industrial wastewater without treatment or addition of external microorganism mediators. Inexpensive activated carbon is introduced as a proper electrode alternative to carbon cloth and carbon paper materials, which are considered too expensive for the large-scale application of MFCs. AC has a porous interconnected structure with a high bio-available surface area. The large surface area, in addition to the high macro porosity, facilitates the high performance by reducing electron transfer resistance...
May 19, 2017: Bioprocess and Biosystems Engineering
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