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Science of the Total Environment

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https://www.readbyqxmd.com/read/29245037/production-of-bio-fertilizer-from-microwave-vacuum-pyrolysis-of-palm-kernel-shell-for-cultivation-of-oyster-mushroom-pleurotus-ostreatus
#1
Wai Lun Nam, Xue Yee Phang, Man Huan Su, Rock Keey Liew, Nyuk Ling Ma, Mohd Haqqi Nazilli Bin Rosli, Su Shiung Lam
Microwave vacuum pyrolysis of palm kernel shell (PKS) was performed to produce biochar, which was then tested as bio-fertilizer in growing Oyster mushroom (Pleurotus ostreatus). The pyrolysis approach produced biochar containing a highly porous structure with a high BET surface area of up to 270m2/g and low moisture content (≤10wt%), exhibiting desirable adsorption properties to be used as bio-fertilizer since it can act as a housing that provides many sites on which living microorganisms (mycelium or plant-growth promoting bacteria) and organic nutrients can be attached or adsorbed onto...
December 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29245036/inhibition-of-microbial-fuel-cell-operation-for-municipal-wastewater-treatment-by-impact-loads-of-free-ammonia-in-bench-and-45l-scale
#2
Heinz Hiegemann, Manfred Lübken, Patrick Schulte, Karl-Georg Schmelz, Sylvia Gredigk-Hoffmann, Marc Wichern
A 45-liter microbial fuel cell (MFC) system was integrated into a full-scale wastewater treatment plant (WWTP). The system was operated under practical conditions with supernatant of a pre-thickener for 50days in order to identify, whether higher power output and energy recovery is possible compared to the use of primary clarifier effluent, as used in a previous study. The higher COD (chemical oxygen demand) loading rates of supernatant neither increased power densities, nor energy recovery, but impact loads of total ammonia nitrogen (TAN) in concentrations >800mg/L (free ammonia nitrogen (FAN)>40mg/L) led to an instant collapse of power output and nutrient removal, which was reversed when ammonia concentrations decreased...
December 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29245035/multiple-long-term-trends-and-trend-reversals-dominate-environmental-conditions-in-a-man-made-freshwater-reservoir
#3
Petr Znachor, Jiří Nedoma, Josef Hejzlar, Jaromír Seďa, Jiří Kopáček, David Boukal, Tomáš Mrkvička
Man-made reservoirs are common across the world and provide a wide range of ecological services. Environmental conditions in riverine reservoirs are affected by the changing climate, catchment-wide processes and manipulations with the water level, and water abstraction from the reservoir. Long-term trends of environmental conditions in reservoirs thus reflect a wider range of drivers in comparison to lakes, which makes the understanding of reservoir dynamics more challenging. We analysed a 32-year time series of 36 environmental variables characterising weather, land use in the catchment, reservoir hydrochemistry, hydrology and light availability in the small, canyon-shaped Římov Reservoir in the Czech Republic to detect underlying trends, trend reversals and regime shifts...
December 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29245034/impact-of-magnetite-nanoparticles-on-the-syntrophic-dechlorination-of-1-2-dichloroethane
#4
Patrícia Leitão, Federico Aulenta, Simona Rossetti, Henri P A Nouws, Anthony S Danko
No abstract text is available yet for this article.
December 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29245033/response-of-detoxification-system-genes-on-chironomus-riparius-aquatic-larvae-after-antibacterial-agent-triclosan-exposures
#5
Pedro Martínez-Paz
Triclosan (TCS) is an antimicrobial agent used in a range of personal care and consumer products and is commonly detected in aquatic ecosystems. In the present study, the effects of TCS at the molecular level on the detoxification system of Chironomus riparius aquatic larvae, a test organism widely used for the assessment of aquatic toxicology, were evaluated. The obtained results show that this xenobiotic was able to induce significant changes in transcripts from different cytochrome P450s and glutathione s-transferases genes, involved in phase I and phase II of detoxification system, respectively...
December 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29227948/points-of-attention-in-designing-tools-for-regional-brownfield-prioritization
#6
Elsa Limasset, Lisa Pizzol, Corinne Merly, Annette M Gatchett, Cécile Le Guern, Stanislav Martinát, Petr Klusáček, Stephan Bartke
The regeneration of brownfields has been increasingly recognized as a key instrument in sustainable land management, since free developable land (or so called "greenfields") has become a scare and more expensive resource, especially in densely populated areas. However, the complexity of these sites requires considerable efforts to successfully complete their revitalization projects, thus requiring the development and application of appropriate tools to support decision makers in the selection of promising sites where efficiently allocate the limited financial resources...
December 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29227947/virtual-water-trade-of-agricultural-products-a-new-perspective-to-explore-the-belt-and-road
#7
Yu Zhang, Jin-He Zhang, Qing Tian, Ze-Hua Liu, Hong-Lei Zhang
The Belt and Road is an initiative of cooperation and development that was proposed by China. Moreover, most of the spanning countries faced water shortages and agriculture consumed a lot of water. Virtual water links water, food and trade and is an effective tool to ease water shortages. Therefore, this paper aims to understand the Belt and Road from the new perspective of virtual water trade of agricultural products. We considered agricultural products trade from 2001 to 2015. On the whole, the results indicated that China was in virtual water trade surplus with the countries along the Belt and Road...
December 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29227946/cross-disciplinary-links-in-environmental-systems-science-current-state-and-claimed-needs-identified-in-a-meta-review-of-process-models
#8
REVIEW
Daniel Ayllón, Volker Grimm, Sabine Attinger, Michael Hauhs, Clemens Simmer, Harry Vereecken, Gunnar Lischeid
Terrestrial environmental systems are characterised by numerous feedback links between their different compartments. However, scientific research is organized into disciplines that focus on processes within the respective compartments rather than on interdisciplinary links. Major feedback mechanisms between compartments might therefore have been systematically overlooked so far. Without identifying these gaps, initiatives on future comprehensive environmental monitoring schemes and experimental platforms might fail...
December 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29227945/a-new-framework-proposal-towards-a-common-eu-agricultural-policy-with-the-best-sustainable-practices-for-the-re-use-of-olive-mill-wastewater
#9
REVIEW
T M Koutsos, T Chatzistathis, E I Balampekou
The disposal of olive mill wastewater (OMW) is a serious environmental issue for the Mediterranean countries. However, there is still no common European legislation on the management and the re-use of OMW in agriculture, in the frame of sustainable crop management and the standards for the safe OMW disposal and re-use are left to be set by each EU country, individually. This review paper presents the most effective and sustainable practices for OMW, (treatment, application and management), which can maximize the benefits of OMW on crops and soils, while minimizing the potential hazards for public health, thus promoting environmental sustainability...
December 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29227944/effects-of-starch-coating-of-magnetite-nanoparticles-on-cellular-uptake-toxicity-and-gene-expression-profiles-in-adult-zebrafish
#10
Min Zheng, Jianguo Lu, Dongye Zhao
Engineered magnetite nanoparticles (Fe3O4 NPs) have been used in many fields. To prevent particle agglomeration, stabilizers or coatings are often required. While such coatings have been shown to enhance performances, the environmental impact or toxicity of stabilized or coated Fe3O4 NPs remain poorly understood. In an effort to understand the impacts of such coatings on the toxicity of Fe3O4 NPs, we used the transcriptome sequencing (RNA-seq) technique to characterize the gill and liver transcriptomes from adult zebrafish when exposed to bare and starch-stabilized Fe3O4 NPs for 7days, demonstrating remarkable differences in gene expression profiles, also known as differentially expressed genes (DEGs) profiles, in both tissues...
December 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29227943/liver-and-fecal-samples-suggest-differential-exposure-of-red-fox-vulpes-vulpes-to-trans-and-cis-bromadiolone-in-areas-from-france-treated-with-plant-protection-products
#11
Isabelle Fourel, Mickaël Sage, Etienne Benoit, Virginie Lattard
No abstract text is available yet for this article.
December 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29227942/the-interaction-between-bacterial-abundance-and-selected-pollutants-concentration-levels-in-an-arctic-catchment-southwest-spitsbergen-svalbard
#12
Klaudia Kosek, Katarzyna Kozak, Krystyna Kozioł, Katarzyna Jankowska, Stanisław Chmiel, Żaneta Polkowska
Persistent organic pollutants (POPs) have been a topic of interest in environmental sciences for >60years. POPs in the Arctic have been investigated since the 1970s, when first atmospheric measurements revealed the presence of these pollutants in the polar regions. Major contaminant transport routes to the Arctic include atmospheric and oceanic transport, as well as inflow from rivers and sea ice. The sources of pollutants, such as industry, power generators, vehicle and ship exhausts, introduce the PAHs, phenols, formaldehyde or metals into the Arctic...
December 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29227941/extractive-waste-management-a-risk-analysis-approach
#13
Neha Mehta, Giovanna Antonella Dino, Franco Ajmone-Marsan, Manuela Lasagna, Chiara Romè, Domenico Antonio De Luca
Abandoned mine sites continue to present serious environmental hazards because the heavy metals associated with extractive waste are continuously released into the environment, where they threaten human life and the environment. Remediating and securing extractive waste are complex, lengthy and costly processes. Thus, in most European countries, a site is considered for intervention when it poses a risk to human health and the surrounding environment. As a consequence, risk analysis presents a viable decisional approach towards the management of extractive waste...
December 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29227940/use-of-magnetic-biochars-for-the-immobilization-of-heavy-metals-in-a-multi-contaminated-soil
#14
H P Lu, Z A Li, G Gascó, A Méndez, Y Shen, J Paz-Ferreiro
Modified biochars, including magnetic biochars, have been tested in water for the removal of inorganic pollutants. However, at present it is unknown if they possess benefits over conventional biochar materials in relation to land remediation. A paddy soil was collected near Liantang village in Lechang Pb-Zn mine area in Guangdong Province (China). The soil was polluted with Cd, Cu, Zn and Pb, with total contents of 1.4mg/kg, 80mg/kg, 1638mg/kg and 2463mg/kg, respectively. We prepared magnetic and conventional biochar from two feedstocks (poultry litter and Eucalyptus) at a temperature of 300 and 500°C...
December 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29227939/influence-of-a-large-urban-park-on-the-local-urban-thermal-environment
#15
Hai Yan, Fan Wu, Li Dong
Green areas in the city can greatly improve the outdoor thermal environment, as well as mitigate the urban heat island effect by reducing summer air temperature. In a context of climate change, with the expected increase in temperature and intensity of heat waves, cooling by green areas is set to become increasingly important. In this study, field observations were carried out to investigate the thermal performance of a large urban vegetated park and its influence on thermal environment of the surrounding urban areas in Beijing, China...
December 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29227938/the-cumulative-effect-of-air-pollutants-on-the-acute-exacerbation-of-copd-in-shanghai-china
#16
Xian Wen Sun, Pei Li Chen, Lei Ren, Ying Ni Lin, Jian Ping Zhou, Lei Ni, Qing Yun Li
BACKGROUND: Epidemiologic studies have shown the effect of air pollutants on acute exacerbation of chronic obstructive pulmonary disease (AECOPD). However, little is known regarding the dose-response relationship. This study aimed to investigate the cumulative effect of air pollutants on AECOPD. METHODS: We collected 101 patients with AECOPD from November 2010 through August 2011 in Shanghai. Multiple logistic regression was used to estimate associations between air pollutants and AECOPD...
December 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29227937/identify-stakeholders-understandings-of-life-cycle-assessment-results-on-wastewater-related-issues
#17
Shunwen Bai, Xueqin Zhu, Xiuheng Wang, Nanqi Ren
To facilitate decision-making processes in waste management, it is important to not only evaluate environmental impacts, but also to measure how stakeholders form opinions and make choices based one valuation results. Life cycle assessments (LCAs) have been widely used to evaluate environmental impacts; however, LCAs cannot be used to measure how people make judgments based on evaluation results. As such, in this study, we combined LCA with conjoint analysis, an economic method that allows individuals to consider all factors and demonstrate their preferences simultaneously...
December 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29227936/application-of-fuzzy-c-means-clustering-to-prtr-chemicals-uncovering-their-release-and-toxicity-characteristics
#18
Mianqiang Xue, Liang Zhou, Naoya Kojima, Leticia Sarmento Dos Muchangos, Takashi Machimura, Akihiro Tokai
Increasing manufacture and usage of chemicals have not been matched by the increase in our understanding of their risks. Pollutant release and transfer register (PRTR) is becoming a popular measure for collecting chemical data and enhancing the public right to know. However, these data are usually in high dimensionality which restricts their wider use. The present study partitions Japanese PRTR chemicals into five fuzzy clusters by fuzzy c-mean clustering (FCM) to explore the implicit information. Each chemical with membership degrees belongs to each cluster...
December 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29227935/hematite-%C3%AE-fe2o3-a-potential-ce4-carrier-in-red-mud
#19
Ralph M Bolanz, Stefan Kiefer, Jörg Göttlicher, Ralph Steininger
Cerium is the most abundant rare earth element (REE) within the waste product of alumina production (red mud), but its speciation in this complex material is still barely understood. Previous studies showed evidence for a correlation between Ce and the main constituent of red mud, iron oxides, which led us to investigate the most abundant iron oxide in red mud, hematite, as possible carrier phase for Ce. Synthetic hematite can incorporate up to 1.70±0.01wt% Ce, which leads to a systematical increase of all unit cell parameters...
December 7, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29223910/analysis-of-the-interactions-between-environmental-and-food-contaminants-cadmium-and-deoxynivalenol-in-different-target-organs
#20
Thanh-Huong Le, Imourana Alassane-Kpembi, Isabelle P Oswald, Philippe Pinton
Cadmium (Cd), a common and widespread toxic heavy metal, and mycotoxins such as deoxynivalenol (DON) are frequent contaminants of the food supply. Most of the data on their toxicity concern their effects when present alone. However, consumers can be exposed to a cocktail of DON and Cd. To improve the understanding of their combined toxicity, the effects of DON and Cd alone or in combination were investigated in different human cell lines from the kidney (HEK-293), intestine (Caco-2), blood (HL-60) and liver (HepG2)...
December 7, 2017: Science of the Total Environment
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