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https://www.readbyqxmd.com/read/28550813/a-reliable-sewage-quality-abnormal-event-monitoring-system
#1
Tianling Li, Melissa Winnel, Hao Lin, Jared Panther, Chang Liu, Roger O'Halloran, Kewen Wang, Taicheng An, Po Keung Wong, Shanqing Zhang, Huijun Zhao
With closing water loop through purified recycled water, wastewater becomes a part of source water, requiring reliable wastewater quality monitoring system (WQMS) to manage wastewater source and mitigate potential health risks. However, the development of reliable WQMS is fatally constrained by severe contamination and biofouling of sensors due to the hostile analytical environment of wastewaters, especially raw sewages, that challenges the limit of existing sensing technologies. In this work, we report a technological solution to enable the development of WQMS for real-time abnormal event detection with high reliability and practicality...
May 20, 2017: Water Research
https://www.readbyqxmd.com/read/28550812/molecular-characterization-of-human-adenoviruses-in-urban-wastewaters-using-next-generation-and-sanger-sequencing
#2
M Iaconelli, B Valdazo-González, M Equestre, A R Ciccaglione, C Marcantonio, S Della Libera, G La Rosa
Human adenoviruses (HAdVs) are of major public health importance and are associated with a variety of clinical manifestations, including gastroenteritis, respiratory, ocular and urinary tract infections. To study the occurrence, prevalence and diversity of HAdV species and types circulating in Italy, we conducted a large-scale molecular-epidemiological investigation, a yearlong monitoring of 22 wastewater treatment plants, covering 10 Italian regions, representative of northern, central, and southern Italy...
May 19, 2017: Water Research
https://www.readbyqxmd.com/read/28550779/pathways-in-bacterial-and-archaeal-communities-dictated-by-ammonium-stress-in-a-high-solid-anaerobic-digester-with-dewatered-sludge
#3
Ning Li, Jin He, Han Yan, Sisi Chen, Xiaohu Dai
Metagenomic comparisons of microbial profiles were conducted to investigate differences between the samples from steady (Day 42), ammonium-adjusting (Day 63), and ammonium-stressed (Day 102) periods during the 110-day operation of a high solid anaerobic digester of sewage sludge. Comparing to the steady period, biogas production was slightly inhibited after ammonium adjustment, during which the microbes showed higher abundance in 6 of the total 22 ammonium-related genes. In addition, among the 19 amino-acid-related genes, 9 genes involved in amino acid generation and utilization were reduced, which partially revealed the reason of deterioration of volatile solids (VSs) degradation following ammonium stress...
May 18, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28550777/disolved-organic-matter-dom-removal-from-bio-treated-coking-wastewate-using-a-new-polymeric-adsorbent-modified-with-dimethylamino-groups
#4
Wenlan Yang, Chengda He, Xiaozhi Wang, Ya Zhang, Zhipeng Cheng, Benlin Dai, Lili Zhang
In the current study a new recyclable aminated hyper-cross-linked polymeric adsorbent (A-HPA) was prepared for effective removal of DOM from BTCW. Possibly benefited from its unique structure of polystyrene matrix, sufficient aminated groups and high specific surface area, A-HPA could remove DOM from BTCW through the synergetic effect of π-π interactions, acid-base interactions and micropore filling, and exhibited the highest removal efficiency than the other adsorbents. Moreover, the exhausted A-HPA was amenable to effective regeneration by using acid and alkaline solution, allowing for repeated use with a constant removal efficiency...
May 18, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28550771/determination-of-the-performance-of-vermicomposting-process-applied-to-sewage-sludge-by-monitoring-of-the-compost-quality-and-immune-responses-in-three-earthworm-species-eisenia-fetida-eisenia-andrei-and-dendrobaena-veneta
#5
Hanine Suleiman, Agnieszka Rorat, Anna Grobelak, Anna Grosser, Marcin Milczarek, Barbara Płytycz, Małgorzata Kacprzak, Franck Vandenbulcke
The aim of this study was to assess the effectiveness of vermicomposting process applied on three different sewage sludge (precomposted with grass clippings, sawdust and municipal solid wastes) using three different earthworm species. Selected immune parameters, namely biomarkers of stress and metal body burdens, have been used to biomonitor the vermicomposting process and to assess the impact of contaminants on earthworm's physiology. Biotic and abiotic parameters were also used in order to monitor the process and the quality of the final product...
May 18, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28550630/the-effects-of-different-sewage-sludge-amendment-rates-on-the-heavy-metal-bioaccumulation-growth-and-biomass-of-cucumbers-cucumis-sativus-l
#6
Ebrahem M Eid, Sulaiman A Alrumman, Ahmed F El-Bebany, Abd El-Latif Hesham, Mostafa A Taher, Khaled F Fawy
When sewage sludge is incorrectly applied, it may adversely impact agro-system productivity. Thus, this study addresses the reaction of Cucumis sativus L. (cucumber) to different amendment rates (0, 10, 20, 30, 40 and 50 g kg(-1)) of sewage sludge in a greenhouse pot experiment, in which the plant growth, heavy metal uptake and biomass were evaluated. A randomized complete block design with six treatments and six replications was used as the experimental design. The soil electrical conductivity, organic matter and Cr, Fe, Zn and Ni concentrations increased, but the soil pH decreased in response to the sewage sludge applications...
May 26, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28550601/potential-toxicity-of-trace-elements-and-nanomaterials-to-chinese-cabbage-in-arsenic-and-lead-contaminated-soil-amended-with-biochars
#7
Yasser Mahmoud Awad, Meththika Vithanage, Nabeel Khan Niazi, Muhammad Rizwan, Jörg Rinklebe, Jae E Yang, Yong Sik Ok, Sang Soo Lee
To our knowledge, this is the first report on exploring the interactive effects of various biochars (BCs) and nanomaterials (NMs) on plant growth and bioavailability of trace elements in soil. This study evaluated the bioavailability and toxicity of arsenic (As), lead (Pb), and NMs to cabbage plants. The BCs were produced from rice husk (RB), sewage sludge, and bamboo wood (WB). The BCs at 2.5 and 5% (w w(-1)), NMs for removing As (NMs-As) and heavy metals (NMs-HM) at 3000 mg kg(-1), and multi-walled carbon nanotubes (CNT) at 1000 mg kg(-1) were applied in bioassay and incubation experiments (40 days), along with the unamended soil as the control...
May 26, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28547324/ecotoxicity-and-fate-of-a-silver-nanomaterial-in-an-outdoor-lysimeter-study
#8
Karsten Schlich, Martin Hoppe, Marco Kraas, Elke Fries, Kerstin Hund-Rinke
Sewage sludge is repeatedly applied as fertilizer on farmland due to its high nutrient content. This may lead to a significant increase of silver nanomaterials (AgNM) in soil over years. Therefore, our aim was to investigate the ecotoxicity and fate of AgNM under environmentally relevant conditions in outdoor lysimeters over 25 months. Two AgNM concentrations (1.7 and 8.0 mg/kg dry matter soil) were applied via sewage sludge into soil. In subsamples of the soil, incubated under laboratory conditions for 180 days, the comparability of outdoor and laboratory results regarding ecotoxicity was determined...
May 25, 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28546481/metagenomes-and-metatranscriptomes-of-activated-sludge-from-a-sewage-plant-with-or-without-aerobic-granule-enrichment
#9
Julien Crovadore, Vice Soljan, Gautier Calmin, Romain Chablais, Bastien Cochard, François Lefort
We report here the metagenomes and metatranscriptomes of activated sludge bioreactors, enriched or not enriched with aerobic granules, at an initial state and after 1 month of incubation. Data showed that the added granular biomass expressed higher levels of expression of genes involved in ammonia elimination.
May 25, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28546473/complete-genome-sequence-of-staphylococcus-aureus-bacteriophage-psa-3
#10
Sang Guen Kim, Jin Woo Jun, Sib Sankar Giri, Saekil Yun, Hyoun Joong Kim, Cheng Chi, Sang Wha Kim, Se Chang Park
Staphylococcus aureus phage pSa-3, isolated in South Korea from a sewage sample, has a 137-kb genome with 29% G+C content. This phage was targeted to control the bacteria in clinical isolates (mainly from skin lesions) and can be used in the decolonization of S. aureus.
May 25, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28545847/sources-and-behaviour-of-nitrogen-compounds-in-the-shallow-groundwater-of-agricultural-areas-poyang-lake-basin-china
#11
Evgeniya Soldatova, Natalia Guseva, Zhanxue Sun, Valeriy Bychinsky, Pascal Boeckx, Bai Gao
Nitrogen contamination of natural water is a typical problem for various territories throughout the world. One of the regions exposed to nitrogen pollution is located in the Poyang Lake basin. As a result of agricultural activity and dense population, the shallow groundwater of this area is characterised by a high concentration of nitrogen compounds, primarily NO3(-), with the concentration varying from 0.1mg/L to 206mg/L. Locally, high ammonium content occurs in the shallow groundwater with low reduction potential Eh (<100mV)...
May 17, 2017: Journal of Contaminant Hydrology
https://www.readbyqxmd.com/read/28545323/an-efficient-phosphorus-scavenging-from-aqueous-solution-using-magnesiothermally-modified-bio-calcite
#12
Munir Ahmad, Mahtab Ahmad, Adel R A Usman, Abdullah S Al-Faraj, Yong Sik Ok, Qaiser Hussain, Adel Abduljabbar, Mohammad I Al-Wabel
The excessive discharge of phosphorus (P) from sewage treatment plants and runoff from agricultural fields is causing a rapid contamination of water resources worldwide. Several materials have been evaluated for the removal of excess P from waste supplies, but designing a cost-effective and environmental friendly substrate is essential for the efficient P removal. In this study, bio-calcite (BC) derived from waste hen eggshell was subjected to thermal treatments (CBC). The BC and CBC further modified via magnesiothermal treatments to produced MBC and MCBC, respectively, and evaluated as a novel green sorbent for P removal from aqueous solutions...
May 26, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28545304/tracing-sources-of-nitrate-using-water-chemistry-land-use-and-nitrogen-isotopes-in-the-ganjiang-river-china
#13
Peng Wang, Junzheng Liu, Shuhua Qi, Shiqin Wang, Xiaoling Chen
In this work, we traced sources of nitrate in the Ganjiang River, a major tributary of Yangtze River, China, by analysing the water chemistry, nitrogen isotopes and land use. Water samples from 20 sites in the main stream and tributaries were collected in the dry and wet seasons. The [Formula: see text] ranged from 0.97 to 8.60 ‰, and was significantly higher in the wet season than in the dry season, and significantly higher in tributaries than in the main stream. In the dry season, [Formula: see text] concentrations and [Formula: see text] were significantly negatively correlated with forest and grassland areas, and positively correlated with paddy field and residential area...
May 25, 2017: Isotopes in Environmental and Health Studies
https://www.readbyqxmd.com/read/28545130/responses-of-absolute-and-specific-enzyme-activity-to-consecutive-application-of-composted-sewage-sludge-in-a-fluventic-ustochrept
#14
Xiao Liu, Kangli Guo, Lin Huang, Zhengyu Ji, Huimin Jiang, Hu Li, Jianfeng Zhang
Composted sewage sludge (CS) is considered a rich source of soil nutrients and significantly affects the physical, chemical, and biological characteristics of soil, but its effect on specific enzyme activity in soil is disregarded. The present experiment examined the absolute and specific enzyme activity of the enzymes involved in carbon, nitrogen, and phosphorus cycles, the diversity of soil microbial functions, and soil community composition in a Fluventic Ustochrept under a maize-wheat rotation system in North China during 2012-2015...
2017: PloS One
https://www.readbyqxmd.com/read/28544887/silver-nanoparticles-in-seawater-a-dynamic-mass-balance-at-part-per-trillion-silver-concentrations
#15
Claudio Toncelli, Kyriaki Mylona, Ioanna Kalantzi, Anastasia Tsiola, Paraskevi Pitta, Manolis Tsapakis, Spiros A Pergantis
This study investigates the dynamic processes affecting silver (Ag) nanoparticles that have been spiked into seawater at environmentally relevant concentrations (200 and 2000ngAgL(-1)). Seawater samples were taken at regular time intervals from multiple microcosm tanks and analysed rapidly, without any sample preparation, using a recently developed flow injection on-line dilution single particle inductively coupled plasma mass spectrometry method. Dissolution was found to be the predominant process of Ag nanoparticle transformation, with its rate being influenced by the type and thickness of the nanoparticle organic coating...
May 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28540550/simultaneous-enhancement-of-sludge-dewaterability-and-removal-of-sludge-borne-heavy-metals-through-a-novel-oxidative-leaching-induced-by-nano-cao2
#16
Boran Wu, Xiaohu Dai, Xiaoli Chai
The production of sewage sludge with the presence of various contaminants has been a serious issue for the operation of wastewater treatment plants on both the economical and environmental sides. To minimize the sludge volume to be handled and limit the potential environmental risk, this study developed a novel oxidative leaching process for enhanced sewage sludge dewatering and simultaneous removal of heavy metals based on nano-CaO2. Response surface methodology determined the following optimal conditioning parameters in terms of capillary suction time reduction: 0...
May 24, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28540546/environmental-risk-assessment-in-five-rivers-of-parana-river-basin-southern-brazil-through-biomarkers-in-astyanax-spp
#17
Ivaldete Tijolin Barros, Juliana Parolin Ceccon, Andressa Glinski, Samuel Liebel, Sonia Regina Grötzner, Marco Antonio Ferreira Randi, Evanilde Benedito, Claudia Feijó Ortolani-Machado, Francisco Filipak Neto, Ciro Alberto de Oliveira Ribeiro
In the current study, water quality of five river sites in Parana River basin (Brazil), utilized for public water supply, was assessed through a set of biomarkers in fish Astyanax spp. Population growth and inadequate use of land are challenges to the preservation of biodiversity and resources such as water. Some physicochemical parameters as well as somatic indexes, gills and liver histopathology, genotoxicity, and biochemical biomarkers were evaluated. The highest gonadosomatic index (GSI) and antioxidant parameters (catalase and glutathione S-transferase activities, non-protein thiols), as well as the lowest damage to biomolecules (lipid peroxidation, protein carbonylation, DNA damage) were observed in site 0 (Piava River), which is located at an environmental protected area...
May 24, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28540488/an-18s-rrna-workflow-for-characterizing-protists-in-sewage-with-a-focus-on-zoonotic-trichomonads
#18
Julia M Maritz, Krysta H Rogers, Tara M Rock, Nicole Liu, Susan Joseph, Kirkwood M Land, Jane M Carlton
Microbial eukaryotes (protists) are important components of terrestrial and aquatic environments, as well as animal and human microbiomes. Their relationships with metazoa range from mutualistic to parasitic and zoonotic (i.e., transmissible between humans and animals). Despite their ecological importance, our knowledge of protists in urban environments lags behind that of bacteria, largely due to a lack of experimentally validated high-throughput protocols that produce accurate estimates of protist diversity while minimizing non-protist DNA representation...
May 24, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/28540457/evaluating-climatic-and-non-climatic-stresses-for-declining-surface-water-quality-in-bagmati-river-of-nepal
#19
Jeeban Panthi, Fengting Li, Hongtao Wang, Suman Aryal, Piyush Dahal, Sheila Ghimire, Martin Kabenge
Both climatic and non-climatic factors affect surface water quality. Similar to its effect across various sectors and areas, climate change has potential to affect surface water quality directly and indirectly. On the one hand, the rise in temperature enhances the microbial activity and decomposition of organic matter in the river system and changes in rainfall alter discharge and water flow in the river ultimately affecting pollution dilution level. On the other hand, the disposal of organic waste and channelizing municipal sewage into the rivers seriously worsen water quality...
June 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28532975/emission-of-extensively-drug-resistant-acinetobacter-baumannii-from-hospital-settings-to-the-natural-environment
#20
M Seruga Music, J Hrenovic, I Goic-Barisic, B Hunjak, D Skoric, T Ivankovic
BACKGROUND: Acinetobacter baumannii is a leading emerging pathogen that is frequently recovered from patients during hospital outbreaks. The role of environmental A. baumannii reservoirs is therefore of great concern worldwide. AIM: To investigate the connection between A. baumannii causing hospital outbreaks and environmental isolates from hospital wastewater, urban sewage and river water as the final natural recipient of wastewaters. METHODS: Clinical isolates from patients with hospital-acquired pneumonia and environmental isolates from water were collected during a two-month monitoring period...
April 11, 2017: Journal of Hospital Infection
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