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https://www.readbyqxmd.com/read/28107719/occurrence-and-elimination-of-antibiotic-resistance-genes-in-a-long-term-operation-integrated-surface-flow-constructed-wetland
#1
Hansun Fang, Qin Zhang, Xiangping Nie, Baowei Chen, Yuandong Xiao, Qiubai Zhou, Wei Liao, Ximei Liang
Wetland construction is a recommended domestic sewage treatment technique, owing to its simplicity and cost efficiency. Concentrations of 14 antibiotic resistance genes (ARGs) in an integrated surface flow constructed wetland (ICW) steadily operated over 10 years were investigated in the winter and summer. Domestic sewage was observed to be the primary source of ARGs in the ICW, and 77.8% and 59.5% removal rates of total targeted ARGs in the ICW were achieved in the winter and summer, respectively. Concentrations of five ARGs (sul1, tetA, tetC, tetE, and qnrS) in the winter and of six ARGs (sul1, sul3, tetA, tetC, tetE, and qnrS) in the summer were increased throughout the treatment process...
January 6, 2017: Chemosphere
https://www.readbyqxmd.com/read/28107717/diclofenac-can-exhibit-estrogenic-modes-of-action-in-male-xenopus-laevis-and-affects-the-hypothalamus-pituitary-gonad-axis-and-mating-vocalizations
#2
Norah Johanna Efosa, Wibke Kleiner, Werner Kloas, Frauke Hoffmann
Diclofenac (DCF) is a non-steroidal analgesic and antiphlogistic. Due to its tremendous use, DCF can be found in the environment, especially in sewage, but also surface waters, ground and drinking water. Previous studies indicated that DCF can modulate the reproductive physiology of fish by altering the expression of important key enzymes of the hypothalamus-pituitary-gonad-axis (HPG-axis) and might act as an estrogenic endocrine disrupting chemical (EDC). Other studies, however, demonstrated that DCF does not exhibit any estrogenicity...
January 6, 2017: Chemosphere
https://www.readbyqxmd.com/read/28107712/innovative-solidification-stabilization-of-lead-contaminated-soil-using-incineration-sewage-sludge-ash
#3
Jiangshan Li, Chi Sun Poon
The proper treatment of lead (Pb) contaminated soils and incinerated sewage sludge ash (ISSA) has become an environmental concern. In this study, ordinary Portland cement (OPC) and blended OPC containing incinerated sewage sludge ash (ISSA) were used to solidify/stabilize (S/S) soils contaminated with different concentrations of Pb. After curing for 7 and 28 d, the S/S soils were subjected to a series of strength, leaching and microscopic tests. The results showed that replacement of OPC by ISSA significantly reduced the unconfined compressive strength (UCS) of S/S soils and leached Pb...
January 12, 2017: Chemosphere
https://www.readbyqxmd.com/read/28105844/overview-of-multiresidues-analytical-methods-for-the-quantitation-of-pharmaceuticals-in-environmental-solid-matrixes-comparison-of-analytical-development-strategy-for-sewage-sludge-manure-soil-and-sediment-samples
#4
Audrey Larivière, Sophie Lissalde, Marilyne Soubrand, Magali Casellas-Français
No abstract text is available yet for this article.
January 3, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28105595/bioelectrochemical-anaerobic-sewage-treatment-technology-for-arctic-communities
#5
Boris Tartakovsky, Yehuda Kleiner, Michelle-France Manuel
This study describes a novel wastewater treatment technology suitable for small remote northern communities. The technology is based on an enhanced biodegradation of organic carbon through a combination of anaerobic methanogenic and microbial electrochemical (bioelectrochemical) degradation processes leading to biomethane production. The microbial electrochemical degradation is achieved in a membraneless flow-through bioanode-biocathode setup operating at an applied voltage below the water electrolysis threshold...
January 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28104647/draft-genome-sequence-of-an-enterococcus-faecalis-atcc-19433-siphovirus-isolated-from-raw-domestic-sewage
#6
Tasha M Santiago-Rodriguez, Melissa Ly, David T Pride, Gary A Toranzos
We previously isolated and characterized an Enterococcus faecalis ATCC 19433 siphovirus from raw domestic sewage as a viral indicator of human fecal pollution. Here, we report the draft genome sequence of this bacteriophage.
January 19, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28104518/evaluation-of-the-dry-and-wet-weather-recreational-health-risks-in-a-semi-enclosed-marine-embayment-in-southern-california
#7
Keah-Ying Lim, Stella Shao, Jian Peng, Stanley B Grant, Sunny C Jiang
For many coastal regions around the world, recreational beach water quality is assessed using fecal indicator bacteria (FIB). However, the utility of FIB as indicators of recreational water illness (RWI) risk has been questioned, particularly in coastal settings with no obvious sources of human sewage. In this study we employed a source-apportionment quantitative microbial risk assessment (SA-QMRA) to assess RWI risk at a popular semi-enclosed recreational beach in Southern California (Baby Beach, City of Dana Point) with no obvious point sources of human sewage...
January 4, 2017: Water Research
https://www.readbyqxmd.com/read/28101707/distributions-and-ecological-risk-assessment-of-estrogens-and-bisphenol-a-in-an-arid-and-semiarid-area-in-northwest-china
#8
Xiaowei Liu, Jianghong Shi, Ting Bo, Yaobin Meng, Xinmin Zhan, Mengtao Zhang, Yang Zhang
Free estrogens (estrone, E1; 17β-estradiol, 17β-E2; estriol, E3; and 17α-ethinylestradiol, EE2), their corresponding sulfate and glucuronide conjugates, and bisphenol A (BPA) were investigated in water and sediments in the Fen River catchment, an arid and semiarid area in northwest China. E1 and BPA were frequently detected in the wet and dry sampling seasons. In addition to the sulfate conjugates, other conjugated estrogens were not detected in water and sediments. The concentrations of these compounds in water generally increased from upstream to downstream...
January 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28100131/influence-of-activated-sewage-sludge-amendment-on-pahs-removal-efficiency-from-a-naturally-contaminated-soil-application-of-the-landfarming-treatment
#9
Borislava Lukić, David Huguenot, Antonio Panico, Eric D van Hullebusch, Giovanni Esposito
The removal of polycyclic aromatic hydrocarbons (PAHs) from a naturally co-contaminated soil by PAHs and heavy metals with an initial concentration of 620 mg of total PAHs kg(-1) dry soil was investigated. The efficiency of landfarming in removing phenanthrene, pyrene, benzo(a)pyrene and the group of total 16 US EPA PAHs was evaluated. The process was biostimulated by adding centrifuged activated sewage sludge (SS) as an organic amendment. Experimental activities were conducted in four laboratory scale reactors filled with corn cobs as bulking agent to reach bulk density of 640 kg/m(3)...
January 18, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28099518/evaluation-of-methods-for-the-concentration-and-extraction-of-viruses-from-sewage-in-the-context-of-metagenomic-sequencing
#10
Mathis Hjort Hjelmsø, Maria Hellmér, Xavier Fernandez-Cassi, Natàlia Timoneda, Oksana Lukjancenko, Michael Seidel, Dennis Elsässer, Frank M Aarestrup, Charlotta Löfström, Sílvia Bofill-Mas, Josep F Abril, Rosina Girones, Anna Charlotte Schultz
Viral sewage metagenomics is a novel field of study used for surveillance, epidemiological studies, and evaluation of waste water treatment efficiency. In raw sewage human waste is mixed with household, industrial and drainage water, and virus particles are, therefore, only found in low concentrations. This necessitates a step of sample concentration to allow for sensitive virus detection. Additionally, viruses harbor a large diversity of both surface and genome structures, which makes universal viral genomic extraction difficult...
2017: PloS One
https://www.readbyqxmd.com/read/28095292/should-enteroviruses-be-monitored-in-natural-recreational-waters
#11
Soňa Šarmírová, Viera Nagyová, Darina Štípalová, Iveta Drastichová, Danka Šimonyiová, Zuzana Sirotná, Renáta Kissová, Katarína Pastuchová, Jana Tirpáková, Daniel Kuba, Cyril Klement, Shubhada Bopegamage
Enteroviruses (EVs) infections occur worldwide. Although, infections by these viruses are often asymptomatic and go unnoticed, they can be shed in stool for several weeks. The EVs re associated with sporadic outbreaks and a wide range of clinical symptoms, occasionally accompanied with fatal consequences. Presently in the Slovak Republic (SR) recreational waters are tested only for bacterial indicators. Our aim was to monitor EVs in recreational waters. Water samples were collected during the years 2012-2014 from different recreational natural lakes in Central and West regions of SR...
December 2016: Central European Journal of Public Health
https://www.readbyqxmd.com/read/28095187/fast-extraction-of-polychlorinated-dibenzo-p-dioxin-and-polychlorinated-dibenzofuran-in-sewage-sludge-and-soil-samples
#12
Valéria F Andrade, Alisson F S Durães, Douglas L Cassimiro, Gevany P de Pinho, Flaviano O Silvério
The current environmental legislations recommend monitoring chemical contaminants such as polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans before the use of sewage sludge on the agricultural land. In this study, a solid-liquid extraction with low-temperature purification (SLE-LTP) was optimized and validated to determine 2,3,7,8-tetrachlorodibenzo-p-dioxin and 2,3,7,8-tetrachlorodibenzofuran in sewage sludge and soil samples. The analyses were performed by gas chromatography-mass spectrometry operating in the selective ion mode (GC-MS-SIM)...
January 17, 2017: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/28094048/optimization-of-the-skimmed-milk-flocculation-method-for-recovery-of-adenovirus-from-sludge
#13
Andrêssa S F Assis, Marcelo Henrique Otenio, Betânia P Drumond, Tulio M Fumian, Marize P Miagostovich, Maria Luzia da Rosa E Silva
Return of treated sludge to the environment poses concerns and has stimulated the development of studies on viral monitoring in this matrix, in order to assess its potential risks for public health. Human adenovirus (HAdV) has been identified as a putative viral marker of faecal contamination due to its stability and resistance to the sewage treatment process. The aim of this study was to optimize the organic flocculation procedure in order to establish an appropriate methodology for HAdV recovery from sewage sludge samples...
January 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28089401/recycling-organic-wastes-to-agricultural-land-as-a-way-to-improve-its-quality-a-field-study-to-evaluate-benefits-and-risks
#14
P Alvarenga, P Palma, C Mourinha, M Farto, J Dôres, M Patanita, C Cunha-Queda, T Natal-da-Luz, M Renaud, J P Sousa
A field study was established to assess the effects of a sewage sludge (SS), a mixed municipal solid waste compost (MMSWC) and a compost produced from agricultural wastes (AWC), in a Vertisol, using Lolium multiflorum L. The amendments were applied for two consecutive years: 6, 12 and 24t dry matter ha(-1) for SS, and the amendment doses for MMSWC and AWC were calculated to deliver the same amount of organic matter (OM) per unit area. The amendments had significant beneficial effects on some soil properties (e...
January 12, 2017: Waste Management
https://www.readbyqxmd.com/read/28088542/interaction-of-earthworms-microbe-facilitating-biofilm-dewaterability-performance-during-wasted-activated-sludge-reduction-and-stabilization
#15
Yadan Zheng, Meiyan Xing, Luziyu Cai, Tao Xiao, Yufan Lu, Jinzhou Jiang
Sludge dewaterability was chemically and morphologically explored during sewage sludge treatment by vermifiltration. The results, with a conventional biofilter (BF, no earthworms) as a control, demonstrated that the capillary suction time(CST) and specific resistance of filtration(SRF) of vermifilter (VF, with earthworms) treated sludge were 64.9±1.7s and (23.1±1.3)×10(12)m/kg,16.8% and 36.0% lower than that of the BF, respectively. Additionally, the VF could efficiently decompose loosely bound extracellular polymeric substances (LB-EPS), releasing more water trapped inside biofilm...
January 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28081527/enhanced-microalgal-biomass-and-lipid-production-from-a-consortium-of-indigenous-microalgae-and-bacteria-present-in-municipal-wastewater-under-gradually-mixotrophic-culture-conditions
#16
Hyun Uk Cho, Young Mo Kim, Jong Moon Park
The goal of this study was to investigate the influences of gradually mixotrophic culture conditions on microalgal biomass and lipid production by a consortium of indigenous microalgae and bacteria present in raw municipal wastewater. Lab-scale photobioreactors containing the consortium were operated in repeated batch mode. Initial cultivation (phase I) was performed using only the municipal wastewater, then 10% and 25% of the reactor volumes were replaced with the effluent from a sewage sludge fermentation system producing volatile fatty acids (SSFV) at the beginnings of phase II and phase III, respectively...
December 25, 2016: Bioresource Technology
https://www.readbyqxmd.com/read/28081232/correction-population-screening-using-sewage-reveals-pan-resistant-bacteria-in-hospital-and-community-samples
#17
(no author information available yet)
[This corrects the article DOI: 10.1371/journal.pone.0164873.].
2017: PloS One
https://www.readbyqxmd.com/read/28079271/uptake-and-elimination-kinetics-of-the-biocide-triclosan-and-the-synthetic-musks-galaxolide-and-tonalide-in-the-earthworm-dendrobaena-veneta-when-exposed-to-sewage-sludge
#18
Ivo Havranek, Claire Coutris, Hans Ragnar Norli, Pierre-Adrien Rivier, Erik J Joner
Sewage sludge is an important amendment that enriches soils with organic matter and provides plants with nutrients such as nitrogen and phosphorus. However, knowledge on fate and effects of organic pollutants present in the sludge on soil organisms is limited. In the present study, the uptake of triclosan, galaxolide, and tonalide in the earthworm Dendrobaena veneta was measured one week after amendment of agricultural soil with sewage sludge, while elimination kinetics were assessed over a 21-day period after transferring worms to a clean soil...
January 12, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28078517/semivolatile-organic-compounds-in-surface-microlayer-and-subsurface-water-of-dianshan-lake-shanghai-china-implications-for-accumulation-and-interrelationship
#19
Ming-Hong Wu, Xue-Xia Yang, Gang Xu, Chen-Jing Que, Si-Han Ma, Liang Tang
Semivolatile organic compounds (SVOCs) in surface microlayer (SML) and subsurface water (SSW) from Dianshan Lake were studied to investigate their occurrence, distributions, as well as enrichment and potential sources. A sample was concentrated by solid-phase micro-extraction (SPME). Identification and quantification were carried out by gas chromatography coupled to mass spectrometry (GC-MS). Total SVOCs concentrations ranged from 25.93 to 47.49 μg/L in SSW and 38.19 to 77.23 μg/L in SML. The phthalic acid esters (PAE) concentrations in both SSW and SML are the highest of the total SVOC...
January 11, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28076771/screening-and-prioritization-of-micropollutants-in-wastewaters-from-on-site-sewage-treatment-facilities
#20
Meritxell Gros, Kristin M Blum, Henrik Jernstedt, Gunno Renman, Sara Rodríguez-Mozaz, Peter Haglund, Patrik L Andersson, Karin Wiberg, Lutz Ahrens
A comprehensive screening of micropollutants was performed in wastewaters from on-site sewage treatment facilities (OSSFs) and urban wastewater treatment plants (WWTPs) in Sweden. A suspect screening approach, using high resolution mass spectrometry, was developed and used in combination with target analysis. With this strategy, a total number of 79 micropollutants were successfully identified, which belong to the groups of per- and polyfluoroalkyl substances (PFASs), pesticides, phosphorus-containing flame retardants (PFRs) and pharmaceuticals and personal care products (PPCPs)...
December 30, 2016: Journal of Hazardous Materials
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