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https://www.readbyqxmd.com/read/29017535/the-leucopatch%C3%A2-system-in-the-management-of-hard-to-heal-diabetic-foot-ulcers-study-protocol-for-a-randomised-controlled-trial
#1
Frances Game, William Jeffcoate, Lise Tarnow, Florence Day, Deborah Fitzsimmons, Judith Jacobsen
BACKGROUND: Diabetic foot ulcers are a common and severe complication of diabetes mellitus. Standard treatment includes debridement, offloading, management of infection and revascularisation where appropriate, although healing times may be long. The LeucoPatch® device is used to generate an autologous platelet-rich fibrin and leucocyte wound dressing produced from the patient's own venous blood by centrifugation, but without the addition of any reagents. The final product comprises a thin, circular patch composed predominantly of fibrin together with living platelets and leucocytes...
October 10, 2017: Trials
https://www.readbyqxmd.com/read/28992504/benefits-of-adding-forestry-clearance-residues-for-the-soil-and-vegetation-of-a-mediterranean-mountain-forest
#2
P Hueso-González, J F Martínez-Murillo, J D Ruiz-Sinoga
Desertification is occurring throughout the mountainous areas of the Mediterranean. These processes lead to reduced soil fertility, increased soil loss, and reduced vegetation cover and species richness. To prevent further damage, it is recommendable to use low-cost approaches that are compatible with the European Strategy of Circular Economy guidelines. We investigated the systemic benefits from recycling of forest clearance residue by adding it to a dry Mediterranean mountainous area. More specifically, we performed afforestation without addition of residue in two control plots (C plots), and afforestation with addition of 10Mgha(-1) of clearance residue from a nearby region dominated by Aleppo pine (Pinus halepensis Mill...
October 6, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28988606/a-novel-strategy-for-producing-compost-with-enhanced-biopesticide-properties-through-solid-state-fermentation-of-biowaste-and-inoculation-with-bacillus-thuringiensis
#3
Cindy Ballardo, Raquel Barrena, Adriana Artola, Antoni Sánchez
In the framework of a circular economy, organic solid wastes are considered to be resources useful for obtaining value-added products. Among other potential uses, biodegradable wastes from agricultural, industrial, and domestic sources are being studied to obtain biopesticides through solid-state fermentation (SSF), mainly at the laboratory scale. The suitability of biowaste (source-selected organic fraction of municipal solid waste) for use as a substrate for Bacillus thuringiensis (Bt) growth under non-sterile conditions in a 10 L SSF reactor was determined in this study...
October 5, 2017: Waste Management
https://www.readbyqxmd.com/read/28969966/bio-refinery-approach-for-spent-coffee-grounds-valorization
#4
REVIEW
Teresa M Mata, António A Martins, Nídia S Caetano
Although normally seen as a problem, current policies and strategic plans concur that if adequately managed, waste can be a source of the most interesting and valuable products, among which metals, oils and fats, lignin, cellulose and hemicelluloses, tannins, antioxidants, caffeine, polyphenols, pigments, flavonoids, through recycling, compound recovery or energy valorization, following the waste hierarchy. Besides contributing to more sustainable and circular economies, those products also have high commercial value when compared to the ones obtained by currently used waste treatment methods...
September 20, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28956716/fractionation-of-pb-and-cu-in-the-fine-fraction-10-mm-of-waste-excavated-from-a-municipal-landfill
#5
Fabio Kaczala, Kaja Orupõld, Anna Augustsson, Juris Burlakovs, Marika Hogland, Amit Bhatnagar, William Hogland
The fractionation of metals in the fine fraction (<10 mm) of excavated waste from an Estonian landfill was carried out to evaluate the metal (Pb and Cu) contents and their potential towards not only mobility but also possibilities of recovery/extraction. The fractionation followed the BCR (Community Bureau of Reference) sequential extraction, and the exchangeable (F1), reducible (F2), oxidizable (F3) and residual fractions were determined. The results showed that Pb was highly associated with the reducible (F2) and oxidizable (F3) fractions, suggesting the potential mobility of this metal mainly when in contact with oxygen, despite the low association with the exchangeable fraction (F1)...
September 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28933648/optimization-of-animal-manure-vermicomposting-based-on-biomass-production-of-earthworms-and-higher-plants
#6
Yan V Borges, Luciano Alves, Ivan Bianchi, Jonas C Espíndola, Juahil M De Oliveira, Claudemir M Radetski, Cleder A Somensi
The goal of this study was to optimize the mixture of swine manure (SM) and cattle manure (CM) used in the vermicomposting process, seeking to increase the manure biodegradation rate and enhance the biomass production of both earthworms and higher plants. To achieve this goal, physico-chemical parameters were determined to assess the final compost quality after 50 days of vermicomposting. The different manure ratios used to produce the composts (C) were as follows (SM:CM, % m/m basis): C1 100:0, C2 (75:25), C3 (50:50), C4 (25:75), and C5 (0:100)...
September 21, 2017: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/28919656/direct-valorisation-of-waste-cocoa-butter-triglycerides-via-catalytic-epoxidation-ring-opening-and-polymerisation
#7
Dorota D Plaza, Vinzent Strobel, Parminder Kaur Ks Heer, Andrew B Sellars, Seng-Soi Hoong, Andrew J Clark, Alexei A Lapkin
BACKGROUND: Development of circular economy requires significant advances in the technologies for valorisation of waste, as waste becomes new feedstock. Food waste is a particularly important feedstock, containing large variation of complex chemical functionality. Although most food waste sources are complex mixtures, waste from food processing, no longer suitable for the human food chain, may also represent relatively clean materials. One such material requiring valorisation is cocoa butter...
September 2017: Journal of Chemical Technology and Biotechnology
https://www.readbyqxmd.com/read/28904563/bacillus-coagulans-ma-13-a-promising-thermophilic-and-cellulolytic-strain-for-the-production-of-lactic-acid-from-lignocellulosic-hydrolysate
#8
Martina Aulitto, Salvatore Fusco, Simonetta Bartolucci, Carl Johan Franzén, Patrizia Contursi
BACKGROUND: The transition from a petroleum-based economy towards more sustainable bioprocesses for the production of fuels and chemicals (circular economy) is necessary to alleviate the impact of anthropic activities on the global ecosystem. Lignocellulosic biomass-derived sugars are suitable alternative feedstocks that can be fermented or biochemically converted to value-added products. An example is lactic acid, which is an essential chemical for the production of polylactic acid, a biodegradable bioplastic...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28898811/modelling-the-correlations-of-e-waste-quantity-with-economic-increase
#9
Abhishek Kumar Awasthi, Federica Cucchiella, Idiano D'Adamo, Jinhui Li, Paolo Rosa, Sergio Terzi, Guoyin Wei, Xianlai Zeng
Waste from Electrical and Electronic Equipment (WEEE or e-waste) is regarded as one of the fastest growing waste streams in the world and is becoming an emerging issue owing to adverse consequences on the natural environment and the human health. This research article reveals the presence of a strong linear correlation among global e-waste generation and Gross Domestic Product. The obtained results indicate that the best fit for data can be reached by comparing e-waste collected volumes and GDP PPS. More in detail, an increase of 1000 GDP PPS means an additional 0...
September 9, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28881325/biodegradation-of-high-doses-of-commercial-pesticide-products-in-pilot-scale-biobeds-using-olive-oil-agroindustry-wastes
#10
L Delgado-Moreno, R Nogales, E Romero
Biobeds systems containing soil, peat and straw (SPS) are used worldwide to eliminate pesticide point-source contamination, but implantation is difficult when peat and/or straw are not available. Novel biobeds composed of soil, olive pruning and wet olive mill cake (SCPr) or its vermicompost (SVPr) were assayed at pilot scale for its use in olive grove areas. Their removal efficiency for five pesticides applied at high concentration was compared with the biobed with SPS. The effect of a grass layer on the efficiency of these biobeds was also evaluated...
December 15, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28834251/microbial-biotechnology-and-circular-economy-in-wastewater-treatment
#11
Per Halkjaer Nielsen
Microbial biotechnology is essential for the development of circular economy in wastewater treatment by integrating energy production and resource recovery into the production of clean water. A comprehensive knowledge about identity, physiology, ecology, and population dynamics of process-critical microorganisms will improve process stability, reduce CO2 footprints, optimize recovery and bioenergy production, and help finding new approaches and solutions. Examples of research needs and perspectives are provided, demonstrating the great importance of microbial biotechnology...
September 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/28830723/selective-recovery-of-silver-from-waste-low-temperature-co-fired-ceramic-and-valorization-through-silver-nanoparticle-synthesis
#12
Basudev Swain, Dongyoon Shin, So Yeong Joo, Nak Kyoon Ahn, Chan Gi Lee, Jin-Ho Yoon
Considering the value of silver metal and silver nanoparticles, the waste generated during manufacturing of low temperature co-fired ceramic (LTCC) were recycled through the simple yet cost effective process by chemical-metallurgy. Followed by leaching optimization, silver was selectively recovered through precipitation. The precipitated silver chloride was valorized though silver nanoparticle synthesis by a simple one-pot greener synthesis route. Through leaching-precipitation optimization, quantitative selective recovery of silver chloride was achieved, followed by homogeneous pure silver nanoparticle about 100nm size were synthesized...
August 19, 2017: Waste Management
https://www.readbyqxmd.com/read/28811160/high-efficiency-removal-of-lead-from-wastewater-by-biochar-derived-from-anaerobic-digestion-sludge
#13
Shih-Hsin Ho, Yi-di Chen, Zhong-Kai Yang, Dillirani Nagarajan, Jo-Shu Chang, Nan-Qi Ren
The properties of biochar derived from waste activated sludge and anaerobic digestion sludge under pyrolysis temperature varying from 400°C to 800°C were investigated. The heavy metals adsorption efficiency of the sludge-derived biochar was also examined. Among the biochar samples tested, ADSBC600 possessing highly porous structure, special surface chemical behaviors and high thermal stability was found to remove Pb(2+) from aqueous solutions efficiently with an adsorption capacity of 51.20mg/g. The Pb(2+) adsorption kinetics and isotherm for ADSBC600 can be described using the pseudo second-order model and Langmuir isotherm, respectively...
August 7, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28806506/quantifying-recycling-and-losses-of-cr-and-ni-in-steel-throughout-multiple-life-cycles-using-matrace-alloy
#14
Shinichiro Nakamura, Yasushi Kondo, Kenichi Nakajima, Hajime Ohno, Stefan Pauliuk
Alloying metals are indispensable ingredients of high quality alloy steel such as austenitic stainless steel, the cyclical use of which is vital for sustainable resource management. Under the current practice of recycling, however, different metals are likely to be mixed in an uncontrolled manner, resulting in function losses and dissipation of metals with distinctive functions, and in the contamination of recycled steels. The latter could result in dilution loss, if metal scrap needed dilution with virgin iron to reduce the contamination below critical levels...
August 25, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28803063/cascading-biomethane-energy-systems-for-sustainable-green-gas-production-in-a-circular-economy
#15
REVIEW
David M Wall, Shane McDonagh, Jerry D Murphy
Biomethane is a flexible energy vector that can be used as a renewable fuel for both the heat and transport sectors. Recent EU legislation encourages the production and use of advanced, third generation biofuels with improved sustainability for future energy systems. The integration of technologies such as anaerobic digestion, gasification, and power to gas, along with advanced feedstocks such as algae will be at the forefront in meeting future sustainability criteria and achieving a green gas supply for the gas grid...
November 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28782012/comment-on-marine-plastic-debris-emits-a-keystone-infochemical-for-olfactory-foraging-seabirds-by-savoca-et-al
#16
Gaia Dell'Ariccia, Richard A Phillips, Jan A van Franeker, Nicolas Gaidet, Paulo Catry, José P Granadeiro, Peter G Ryan, Francesco Bonadonna
In their recent paper, Savoca and collaborators (2016) showed that plastic debris in the ocean may acquire a dimethyl sulfide (DMS) signature from biofouling developing on their surface. According to them, DMS emission may represent an olfactory trap for foraging seabirds, which explains patterns of plastic ingestion among procellariiform seabirds. This hypothesis is appealing, but some of the data that Savoca et al. used to support their claim are questionable, resulting in a misclassification of species, as well as other decisions regarding the variables to include in their models...
June 2017: Science Advances
https://www.readbyqxmd.com/read/28777062/circular-economy-permanent-materials-and-limitations-to-recycling-where-do-we-stand-and-what-is-the-way-forward
#17
(no author information available yet)
No abstract text is available yet for this article.
August 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28772461/properties-of-residue-from-olive-oil-extraction-as-a-raw-material-for-sustainable-construction-materials-part-i-physical-properties
#18
Almudena Díaz-García, Carmen Martínez-García, Teresa Cotes-Palomino
Action on climate, the environment, and the efficient use of raw materials and resources are important challenges facing our society. Against this backdrop, the construction industry must adapt to new trends and environmentally sustainable construction systems, thus requiring lines of research aimed at keeping energy consumption in new buildings as low as possible. One of the main goals of this research is to efficiently contribute to reducing the amount of residue from olive oil extraction using a two-phase method...
January 25, 2017: Materials
https://www.readbyqxmd.com/read/28771985/how-to-access-and-exploit-natural-resources-sustainably-petroleum-biotechnology
#19
Angela Sherry, Luiza Andrade, Anne Velenturf, Beate Christgen, Neil D Gray, Ian M Head
As we transition from fossil fuel reliance to a new energy future, innovative microbial biotechnologies may offer new routes to maximize recovery from conventional and unconventional energy assets; as well as contributing to reduced emission pathways and new technologies for carbon capture and utilization. Here we discuss the role of microbiology in petroleum biotechnologies in relation to addressing UN Sustainable Development Goal 12 (ensure sustainable consumption and production patterns), with a focus on microbially-mediated energy recovery from unconventionals (heavy oil to methane), shale gas and fracking, bioelectrochemical systems for the production of electricity from fossil fuel resources, and innovations in synthetic biology...
September 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/28728973/sewer-mining-a-water-reuse-option-supporting-circular-economy-public-service-provision-and-entrepreneurship
#20
C Makropoulos, E Rozos, I Tsoukalas, A Plevri, G Karakatsanis, L Karagiannidis, E Makri, C Lioumis, C Noutsopoulos, D Mamais, C Rippis, E Lytras
Water scarcity, either due to increased urbanisation or climatic variability, has motivated societies to reduce pressure on water resources mainly by reducing water demand. However, this practice alone is not sufficient to guarantee the quality of life that high quality water services underpin, especially within a context of increased urbanisation. As such, the idea of water reuse has been gaining momentum for some time and has recently found a more general context within the idea of the Circular Economy. This paper is set within the context of an ongoing discussion between centralized and decentralized water reuse techniques and the investigation of trade-offs between efficiency and economic viability of reuse at different scales...
July 17, 2017: Journal of Environmental Management
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