Thematische Bibliographien / Recycling techniques

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Auswahl der wissenschaftlichen Literatur zum Thema „Recycling techniques“

Autor: Grafiati

Veröffentlicht am 24. Juni 2021

Zuletzt aktualisiert am 5. Februar 2022

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Zeitschriftenartikel zum Thema "Recycling techniques"

FUJITA, TOYOHISA. „Recycling. Physical Separation Techniques. Magnetic Separation.“ Shigen-to-Sozai 113, Nr. 12 (1997): 916–19. http://dx.doi.org/10.2473/shigentosozai.113.916.

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OWADA, SHUJI. „Recycling. Physical Separation Techniques. Electrical Separation.“ Shigen-to-Sozai 113, Nr. 12 (1997): 920–23. http://dx.doi.org/10.2473/shigentosozai.113.920.

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SHIBATA, JUNJI. „Recycling. Extraction and Recovery Techniques. Cementation.“ Shigen-to-Sozai 113, Nr. 12 (1997): 948–51. http://dx.doi.org/10.2473/shigentosozai.113.948.

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TSURUTA, Kazuhiro. „The Recycling Techniques of Kitakyushu Ecotown“. Journal of The Institute of Electrical Engineers of Japan 126, Nr. 3 (2006): 132–35. http://dx.doi.org/10.1541/ieejjournal.126.132.

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Wang, De Cai, Yu Mei Li und Qing Wang. „Discussion on Pavement Recycling Techniques in China“. Advanced Materials Research 415-417 (Dezember 2011): 1749–54. http://dx.doi.org/10.4028/www.scientific.net/amr.415-417.1749.

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This paper pointed out that regeneration is the necessary condition of achieving circular economy and sustainable development,aslo is the inevitable trend of the national highway development. By analyzing and comparison among four different ways, it is concluded that cold in plant recycling has more advantages on economic,rationality,energy-saving & environment-friendly and so on. On the basis of comparison in four different regeneration methods, the writer analysis technology and economic advantages and prospects of application of the emulsified asphalt cold in plant recycling, combining with the status quo of highway maintenance and improvement, and point out that emulsified asphalt cold in plant recycling is the ideal choice to solve our current semi-rigid base problem,which avoid reflective cracking and extend the pavement life.

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SAKAMOTO, HIROSHI. „Recycling. Physical Separation Techniques. Crushing and Grinding.“ Shigen-to-Sozai 113, Nr. 12 (1997): 899–903. http://dx.doi.org/10.2473/shigentosozai.113.899.

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TSUNEKAWA, MASAMI. „Recycling. Physical Separation Techniques. Sizing and Classification.“ Shigen-to-Sozai 113, Nr. 12 (1997): 904–7. http://dx.doi.org/10.2473/shigentosozai.113.904.

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TANAKA, MIKIYA. „Recycling. Extraction and Recovery Techniques. Solvent Extraction.“ Shigen-to-Sozai 113, Nr. 12 (1997): 940–44. http://dx.doi.org/10.2473/shigentosozai.113.940.

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UMETSU, YOSHIAKI. „Recycling. Extraction and Recovery Techniques. Electrolytic Processes.“ Shigen-to-Sozai 113, Nr. 12 (1997): 945–47. http://dx.doi.org/10.2473/shigentosozai.113.945.

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TAKEDA, YOICHI. „Recycling. Extraction and Recovery Techniques. Pyrometallurgical Refining.“ Shigen-to-Sozai 113, Nr. 12 (1997): 952–57. http://dx.doi.org/10.2473/shigentosozai.113.952.

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Dissertationen zum Thema "Recycling techniques"

Carr, Arielle Katherine Grim. „Recycling Techniques for Sequences of Linear Systems and Eigenproblems“. Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/104143.

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Sequences of matrices arise in many applications in science and engineering. In this thesis we consider matrices that are closely related (or closely related in groups), and we take advantage of the small differences between them to efficiently solve sequences of linear systems and eigenproblems. Recycling techniques, such as recycling preconditioners or subspaces, are popular approaches for reducing computational cost. In this thesis, we introduce two novel approaches for recycling previously computed information for a subsequent system or eigenproblem, and demonstrate good results for sequences arising in several applications. Preconditioners are often essential for fast convergence of iterative methods. However, computing a good preconditioner can be very expensive, and when solving a sequence of linear systems, we want to avoid computing a new preconditioner too often. Instead, we can recycle a previously computed preconditioner, for which we have good convergence behavior of the preconditioned system. We propose an update technique we call the sparse approximate map, or SAM update, that approximately maps one matrix to another matrix in our sequence. SAM updates are very cheap to compute and apply, preserve good convergence properties of a previously computed preconditioner, and help to amortize the cost of that preconditioner over many linear solves. When solving a sequence of eigenproblems, we can reduce the computational cost of constructing the Krylov space starting with a single vector by warm-starting the eigensolver with a subspace instead. We propose an algorithm to warm-start the Krylov-Schur method using a previously computed approximate invariant subspace. We first compute the approximate Krylov decomposition for a matrix with minimal residual, and use this space to warm-start the eigensolver. We account for the residual matrix when expanding, truncating, and deflating the decomposition and show that the norm of the residual monotonically decreases. This method is effective in reducing the total number of matrix-vector products, and computes an approximate invariant subspace that is as accurate as the one computed with standard Krylov-Schur. In applications where the matrix-vector products require an implicit linear solve, we incorporate Krylov subspace recycling. Finally, in many applications, sequences of matrices take the special form of the sum of the identity matrix, a very low-rank matrix, and a small-in-norm matrix. We consider convergence rates for GMRES applied to these matrices by identifying the sources of sensitivity.
Doctor of Philosophy
Problems in science and engineering often require the solution to many linear systems, or a sequence of systems, that model the behavior of physical phenomena. In order to construct highly accurate mathematical models to describe this behavior, the resulting matrices can be very large, and therefore the linear system can be very expensive to solve. To efficiently solve a sequence of large linear systems, we often use iterative methods, which can require preconditioning techniques to achieve fast convergence. The preconditioners themselves can be very expensive to compute. So, we propose a cheap update technique that approximately maps one matrix to another in the sequence for which we already have a good preconditioner. We then combine the preconditioner and the map and use the updated preconditioner for the current system. Sequences of eigenvalue problems also arise in many scientific applications, such as those modeling disk brake squeal in a motor vehicle. To accurately represent this physical system, large eigenvalue problems must be solved. The behavior of certain eigenvalues can reveal instability in the physical system but to identify these eigenvalues, we must solve a sequence of very large eigenproblems. The eigensolvers used to solve eigenproblems generally begin with a single vector, and instead, we propose starting the method with several vectors, or a subspace. This allows us to reduce the total number of iterations required by the eigensolver while still producing an accurate solution. We demonstrate good results for both of these approaches using sequences of linear systems and eigenvalue problems arising in several real-world applications. Finally, in many applications, sequences of matrices take the special form of the sum of the identity matrix, a very low-rank matrix, and a small-in-norm matrix. We examine the convergence behavior of the iterative method GMRES when solving such a sequence of matrices.

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Cardozo, Luis, Miguel Mendoza, Manuel Silvera und Guillermo Lazo. „Structural contribution of the fine particles present in the mastic of aggregates used to make recycled bases with foamed asphalt and asphalt emulsion“. Institute of Electrical and Electronics Engineers Inc, 2020. http://hdl.handle.net/10757/656566.

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El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.
The use of foamed asphalt as a technique that incorporates recycled bases stabilized with RAP is known, because it achieves important structural contributions. However, the component of aggregates, belonging to the fine fraction (through the # 200 mesh) takes special importance. This article seeks to develop a comparative analysis between the stabilizations of recycled foamed asphalt bases and asphalt emulsion. The importance of this study lies in analyzing the structural contribution of the fines fraction when comparing both stabilizations. For the present investigation, 48 pits were examined, where the combined granulometry of the RAP plus the granular base was evaluated. Here it was possible to identify a minimal presence of fines even within the recommended spindle for foamed asphalt mixtures, evidencing a deficit in indirect traction strength (ITS). The results obtained show, that a dry stability of 484.7 kg is achieved, and a conserved strength of 45% in the foamed asphalt. While in the asphalt emulsion a dry stability of 1862.1 kg and a conserved resistance of 70% is achieved. This demonstrates the impact on the structural behavior that have the fines fraction in stabilizations with foamed asphalt.

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Koermer, Scott Carl. „The Application of Mineral Processing Techniques to the Scrap Recycling Industry“. Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/63994.

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The scrap metal recycling industry is a growing industry that plays an important role in the sustainability of a large global metal supply. Unfortunately, recycling lacks many standards, and test procedures in place for mineral processing. These standards and practices, if used in recycling, could aid recyclers in determining and achieving optimal separations for their plant.. New regulations for scrap imports into China make it difficult to obtain the metal recoveries that have been achieved in the past. In order to help scrap yards adhere to the new regulations the Eriez RCS eddy current separator system was tested in full scale. The principles this system uses, called circuit analysis, have been used by the mining industry for years, and can be used with any separation system. The Eriez RCS system surpassed the requirements of the Chinese regulations, while simultaneously increasing the recovery of metals. In order to further analyze eddy current separator circuits, tree analysis was attempted for single eddy current separators, as well as more complex circuits mimicked using locked cycle tests. The circuits used in the locked cycle test were a rougher-cleaner, a rougher-scavenger, and a rougher-cleaner-scavenger. It was found that it is possible to use tree analysis to compare different eddy current separator circuits using the same settings, however standards for this practice need to be established for it to be useful. Using the data analysis methods developed for this particular tree analysis, the rougher-cleaner-scavenger test had the best performance overall. This is the same result as the full scale testing done on the Eriez RCS system, but more testing should be conducted to confirm the data analysis techniques of calculating theoretical efficiency, recovery efficiency, and rejection efficiency.
Master of Science

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Ferraro, Nathaniel Klug. „Economic Analysis of Recapturing and Recycling Irrigation Techniques on Horticulture Nurseries“. Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/76656.

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The horticulture industry is facing limited water resources and public pressure to reduce non-point source pollution. In some circumstances, recapturing and recycling of irrigation water in horticultural nurseries can generate significant savings relative to the costs of alternative water sources and potentially reduce non-point source pollution. However, obtaining these savings may also incur substantial risk and capital cost outlays. Disease risk may increase in nurseries that implement recapturing and recycling if recycled water is not properly treated. These added costs must be compared with costs of alternative sources of water, such as municipal or well water. This study employed partial budgeting to compare irrigation water being extended or supplemented through recapturing and recycling against the most feasible alternative. On-site visits were conducted to obtain information for partial budgets and to clarify the reasoning of nurseries choosing to recycle irrigation water. The partial budgets were supplemented with sensitivity analysis with regard to the extraction cost of water and opportunity cost of land used for recapture of water. Six of eight nurseries obtained water from recapturing and recycling at a lower cost compared to a feasible alternative source. The regrading of land for maximum recapture, opportunity cost of land dedicated to a recapture pond, and the cost of municipal water were parameters that were critical to the irrigation choice. Sensitivity analysis indicated that water price and land cost had little effect on the least cost option. Irrigation recycling could be incentivized to motivate further water conservation within the horticulture industry.
Master of Science

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Youhanan, Lena. „Environmental Assessment of Textile Material Recovery Techniques : Examining Textile Flows in Sweden“. Thesis, KTH, Industriell ekologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-123770.

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The production of textiles, focusing on cotton and polyester, carries with it major environmental concerns such as significant water and chemical use as well as the use of non-renewable resources. Measures need to be taken to decrease those environmental burdens. The present study investigates four different recovery techniques in terms of specific environmental factors. The investigated recovery methods are the Re:newcell method, polyester recycling, textile to insulation material and biogas production from the digestion of textile waste. Incineration is also included as a reference alternative. Waste flows in Sweden are estimated through a literature review of conducted waste analyses and estimations as to the amount of secondary product that can be produced from that input are duly made. Further, the environmental implications of three potential locations for a sorting facility are investigated. Converting cotton into biogas was found to be an unrealistic approach since it is economically inviable and little or no energy is actually gained when transportation costs are taken into consideration. Further studies on the benefits and costs of recycling cotton into insulation material are needed. The unavoidable transportation related to collection, sorting and recycling are not to be underestimated and could in some cases hinder future environmental improvements. Finally, the study found that fiber material recycling is the only treatment method that has the potential to decrease the environmental burdens related to primary production although, despite the fact it requires the most water and chemicals. However, the data reliability in the current study is a matter of concern and further research in the form of standardized data collection and the use of analytical and strategic tools in further assessments is recommended. Although the recovery of textile material is crucial for decreasing the environmental burdens from primary production of textiles, the work in preventing textile waste is even more vital. In the long run, the prevention of waste is far more important as recovery processes demands their own share of resources.
Den primära produktionen av textilier för med sig enorma miljömässiga påfrestningar. Omfattande mängder kemikalier och vatten samt icke-förnybara resurser används vid tillverkningen av bomull och polyester. Det är nödvändigt att vidta åtgärder för att minska dessa negativa effekter på miljön. Denna studie syftar till att undersöka fyra olika återvinningstekniker för textilt avfall med fokus på bomull och polyester. Förbränning med energiutvinning inkluderas som ett referensfall och återvinningsteknikerna jämförs med hjälp av utvalda miljöfaktorer. De återvinningstekniker som jämförs är Re:newcells metod för återvinning av bomull (och andra cellulosa material) till viskosfiber, kemisk polyesteråtervinning, återvinning av bomull till isoleringsmaterial för byggnader samt rötning av bomullstextilier för utvinning av biogas. Avfallsströmmarna i Sverige uppskattas med hjälp av litteraturstudier av framförallt genomförda plockanalyser. Alla faktorer jämförs med avseende på 1 ton blandat textilavfall från hushåll i Sverige och hur mycket av det som kan användas som potentiell råvara i återvinningsprocesserna. Vidare undersöks även de miljömässiga effekterna som uppstår vid transport av det textila avfallet till en sorteringsanläggning och till återvinnigsanläggningar. Tre potentiella placeringar av sorteringsanläggningen undersöks: Stockholm, Vänersborg och Wolfen, Tyskland. Studien fann att endast fibermaterialåtervinning har möjlighet att motverka de miljömässiga påfrestningarna från primärproduktionen även om de också innebär den största användningen av resurser såsom vatten och kemikalier. Rötning av bomull till biogas anses vara ett orealistiskt alternativ då metoden är ekonomiskt oförsvarbar och lite eller ingen energi egentligen utvinns när man inkluderar de nödvändiga transporterna. Vidare studier behövs för att uppskatta nyttan och kostnaderna för återvinning av bomull till isoleringsmaterial. De transporter som oundvikligt behövs vid återvinning pga. insamling, sortering och återvinning bör inte underskattas och kan i vissa fall förhindra att miljönyttan ökar. Resultaten i studien bör däremot användas kritiskt då tillförlitligheten i det data som har använts i vissa fall kan ifrågasättas. Detta beror på att många antaganden och uppskattningar har gjorts pga. brist på data av sekretesskäl. Mer forskning och undersökningar rekommenderas i form av standardiserade metoder för plockanalyser av textilt avfall. Användningen av analytiska och strategiska verktyg såsom LCA och EIA/SEA rekommenderas för att ta hänsyn till alla intressenter vad gäller end-of-life för textilt avfall. Fastän återvinning är en nödvändig del i arbetet att minska på de miljömässiga påfrestningarna som primärproduktion bidrar till är det ännu viktigare att arbeta med åtgärder för att minska avfallet. Återvinning kräver sin andel resurser i from av energi, vatten och kemikalier bland annat.

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Camacho, Walker. „Analytical techniques for quality assessment of separated and commingled recycled polymer fractions“. Doctoral thesis, KTH, Polymer Technology, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3326.

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Different methods for quality assessment of separated andcommingled plastics from household and electronic waste havebeen developed. Especial attention has been given tospectroscopic methods since they are non-destructive andrequire little or no sample preparation at all.

A wide variety of low molecular weight compounds have beenidentified in recycled polyethylene (HDPE) and polypropylenefrom hard packaging waste by gas chromatography- massspectroscopy (GC-MS) after microwave assisted extraction (MAE).Low molecular weight substances such as alcohols, esters,ketones and fragrance and flavour compounds were detected inthe recycled resins. The major category of compounds identifiedin the virgin resins is conformed by aliphatic hydrocarbonssuch as alkanes and alkenes. It was found that theconcentration of aromatic hydrocarbons without functionalgroups, e.g. ethylbenzene and xylenes in recycled HDPE wasapprox. 5 times higher and equal to 120 and 35 ppb,respectively.

The potential of near infrared (NIR) and Fourier transformRaman (FT-Raman) spectroscopy in combination with multivariateanalysis as a rapid, non-destructive and accurate analyticalmethod has been studied and the feasibility of these methodsfor at/in line characterisation of several properties ofrecyclates has also been explored.

NIR in diffuse reflectance mode has been successfully usedfor quantification of antioxidants in polyethylene, thestandard error of prediction is almost comparable to the errorof wet methods, i.e., extraction plus liquid chromatography.The error of prediction of this method is 35 ppm for Irganox1010 and 68 ppm for Irgafos 168. The inaccuracy in thequantification of Irgafos 168 is due to the fact that thisantioxidant degrades during polymer processing.

NIR and Mid-infrared (Mid-IR) worked well for fastdetermination of molecular weight and crystallinity of therecycled HDPE and acceptable errors of prediction, comparableto that of the reference methods, i.e. size exclusionchromatography (SEC) and differential scanning calorimetry(DSC) have been obtained.

The present thesis also shows that NIR and Raman are goodcandidates for in/on line compositional analysis of mixedpolymer fractions from recycled plastic waste. Diffusereflectance NIR allows a rapid and reliable measurement ofpellets and requires no previous sample preparation. Thecomposition of binary blends can be determined with highaccuracy. The PP content in the PP/HDPE blends was predictedwith a RMSEP equal to 0.46 %w in the 0-15 %wt region and theRMSEP for PP in the PP/ABS blends was 0.3 %wt.

The thermal and thermoxidative stability of recycled PP,HDPE and a 20/80 PP/HDPE blend subjected to multiple extrusionhave been studied by DSC, thermal analysis (TGA) andchemiluminiscence (CL). A decrease in T_oxand OIT was observed after each extrusion step.The drop in OIT was sharper after the first two extrusions. TheOIT values produced by DSC and CL were in good agreement.However, CL provided more information about the oxidationprocess taking place in the blends.

The moisture content in recycled polyamide 6,6 was readilydetermined by NIR in transmission mode and it could bepredicted with a RMSEP = 0.05 %wt. The accuracy of the methodappeared to be as good as that of the more time consumingthermal methods such as TGA, DSC and loss on dry (LOD), whichwere used as reference methods. The influence of differentamounts of water on the viscoelastic properties of nylon hasbeen investigated.

Keywords:Recycling, HDPE, PP, blends, nylon 6,6, ABS,water content, MAE, GC-MS, NIR, FT-Raman, chemiluminiscence,low molecular weight compounds, antioxidant content,crystallinity, molecular weight, thermal stability,characterisation methods, analysis of polymers, blends.

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Vilaplana, Francisco. „Modelling the degradation processes in high-impact polystyrene during the first use and subsequent recycling“. Licentiate thesis, Stockholm : Institutionen för fiber- och polymerteknologi, Kungliga Tekniska högskolan, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4407.

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BARNALA, PUKHRAJ K. „Optimization of Operating Parameters of a Material Recovery Facility using Lean Six Sigma Techniques“. University of Toledo / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1321575835.

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Kobeissi, Amal. „Contribution à la mise en oeuvre du système d'évaluation des produits techniques en fin de vie“. Grenoble INPG, 2001. http://www.theses.fr/2001INPG0044.

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La contribution des travaux de cette thèse porte sur la détermination de l'option de fin de vie adéquate à chaque produit à recycler. Ceci revient à évaluer un produit, donc à classifier ses compsants suivant deux options: réparation ou réutilisables, en tenant compte de leur qualité, des coûts, des revenus éventuels d'une telle classification et enfin des contraintes et des objectifs du recyclage. Cependant, l'absence totale des informations sur la "vie antérieure" du produit à évaluer augmente la complexité de l'évaluation. Notre problématique consiste à tester l'état du produit pour en déduire l'état de ses pièces. La solution que nous avons envisagée consiste alors à tester la bonne marche de ses services. Dans ce but, des séquences de test seront appliqués au produit. Nous nous sommes intéressés à la génération automatique de séquences de test afin d'appliquer la séquence de test la plus appropriée à chaque type de produit. Les phases suivantes sont la caractérisation des symptômes de défaillance (la détection) et l'identification de son origine (le diagnostic). Après avoir identifié l'état du produit et de ses composants, la stratégie la plus adaptée pour le produit est choisie selon un certain nombre d'indicateurs économiques. Enfin, une séquence de démontage est générée selon l'option choisie

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Barthès, Marie-Lise. „Régénération d’ABS et de PC issus de DEEE sous forme d’alliages de polymères techniques ou de nanocomposites“. Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14007/document.

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Les Déchets d'Equipement Electriques et Electroniques (DEEE) constituent un volume important de déchets dont le constituant majoritaire est l’ABS. C’est pour cela que nous avons travaillé principalement avec des polymères provenant d’un gisement réel (carters d’ordinateurs). Puis, des mélanges ABS/PC ont été élaborés (le PC étant un des constituants d’un gisement de carters), dans le but d’obtenir un matériau avec une résilience au moins équivalente à celle d’un ABS neuf. Même si l’ABS a montré une bonne aptitude à être recyclé seul, après vieillissement et recyclage, sa résilience connaît une chute due à la dégradation de la phase élastomère et à la présence d’ignifugeants. Il est important pour le recyclage de l’ABS et de ses mélanges de séparer les polymères ignifugés de ceux qui ne le sont pas. La voie mélange pour le recyclage de l’ABS par l’ajout de PC a l’avantage de simplifier le tri et de recycler un maximum des polymères présents dans les DEEE. Nous avons tout d’abord réalisé des mélanges ABS/PC neufs pour bénéficier d’une mise en œuvre et d’une composition optimales. L’influence des paramètres du procédé de recyclage (température et vis d’extrusion) et des propriétés des matériaux (taux et viscosité du PC, retardateurs de flamme de l’ABS) sur les propriétés du mélange a été étudiée. Nous avons effectué essentiellement des essais de résistance au choc Charpy et des études morphologiques. Les résultats ont montré qu’une morphologie fibrillaire ou co-continue est favorable à la meilleure résilience des mélanges ABS/PC. Nous avons obtenu pour des mélanges neufs ABS neuf FR/PC neuf réalisés avec 70% d’ABS une résilience supérieure à celle de l’ABS neuf. Mais, à composition égale, ce résultat n’a pas été atteint pour les mélanges majoritaires en ABS recyclé. Souhaitant réaliser des mélanges performants majoritaires en ABS recyclé, la compatibilisation semble nécessaire. Un mélange recyclé majoritaire en ABS, compatibilisé avec du PP-g-MA, est montré plus résilient que l’ABS neuf seul. Toutefois, les compatibilisants ont une efficacité limitée lorsqu’ils sont en présence de retardateurs de flamme ou soumis à un temps de séjour élevé dans la presse à injecter. Nous avons voulu utiliser des nanocharges minérales (montmorillonites), ajoutées en faible quantité, en tant qu'ignifugeants et compatibilisants. Elles se sont avérées inefficaces dans les études préliminaires réalisées. Le choix des nanoargiles minérales doit être optimisé
WEEE constitute a huge waste volume in which ABS is the major component. So, we focused on polymers from a real deposit (casing of computers); such a deposit contains ABS, PC, PS, ABS-PC. In a first step, recycling of aged ABS was studied. The decrease in the C=C content induces an impact strength drop. Nevertheless, ABS proved to be recyclable given that optimized processing conditions are found. The role of flame retardants was shown to be crucial on the recyclability. Separating polymers with or without flame retardants is the key point of the ABS recycling. However, recycled aged ABS do not recover the impact strength of neat virgin ABS. Then, ABS/PC blends were elaborated in order to obtain a material with an impact strength at least equivalent to the neat ABS. The use of ABS/PC blends for this recycling facilitates the sorting and the utilization of most of WEEE polymers. We first made ABS/PC blends from virgin polymers to have optimal processability and composition. Performing Charpy impact strength tests and morphological studies allowed to evaluate the influence of recycling process parameters (temperature and screw extrusion) and material properties (rate and viscosity of PC and ABS flame retardants). Experimental results indicate that the impact strength of the ABS/PC blends is higher when the morphology is fibrillar or co-continuous. We obtained ABS virgin FR/PC virgin blends (70/30) with an impact strength greater than the neat ABS. But, with equal composition, this result was not reached for the blends. So to achieve reliable blends rich in recycled ABS, compatibilisation is necessary. Recycled ABS/PC blends compatibilised with PP-g-MA is more resilient than the ABS. However, the compatibilising agents have a limited efficiency when they are used in the presence of flame retardants or subjected to a high residence time. Finally, nanoclays were attemptively used as both FR and compatibiliser. Tough they proved uneffective in the very first experiments carried out (the choice of clay need to be optimized)

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Bücher zum Thema "Recycling techniques"

L, Dalmijn Wijnand, und Dutch National Reuse of Waste Research Programme., Hrsg. Handbook of recycling techniques. The Hague: Nijkerk Consultancy, 1998.

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Dutch National Research Programme for the Recycling of Waste Substances., Hrsg. Handbook of recycling techniques. The Hague: Nijkerk Consultancy, 1994.

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Nijkerk, Alfred A. Handbook of recycling techniques. The Hague: Nijkerk Cosultancy, 1996.

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Industrial pollution control: Issues and techniques. 2. Aufl. New York: Van Nostrand Reinhold, 1992.

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Reclaimed textiles: Techniques for paper, stitch, plastic and mixed media. London: Batsford, 2014.

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ller-Hagedorn, Matthias Mu. Feedstock recycling of plastics: Selected papers presented at the Third International Symposium on Feedstock Recycling of Plastics & Other Innovative Plastics Recycling Techniques, Karlsruhe, Germany, September 25 - 29, 2005. Karlsruhe: Univ.-Verl. Karlsruhe, 2005.

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Logsdon, Gene. Gene Logsdon's moneysaving secrets: A treasury of salvaging, bargaining, recycling, and scavenging techniques. Emmaus, Pa: Rodale Press, 1986.

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Bill, Milne, Hrsg. Making & decorating your own paper: Innovative techniques & original projects. New York: Sterling Pub. Co., 1994.

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Morselli, Luciano, Fabrizio Passarini und Ivano Vassura. Waste recovery: Strategies, techniques and applications in Europe. Milano: F. Angeli, 2009.

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Bonham, N. Response techniques for the cleanup of sinking hazardous materials. Ottawa, Ont., Canada: Environment Canada, 1989.

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Buchteile zum Thema "Recycling techniques"

Hanko, G., C. Lochbichler, W. Riederer und G. Macher. „Techniques for Recycling of Magnesium Scrap“. In Magnesium, 988–94. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527603565.ch153.

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Chandran, Nithin, Anjaly Sivadas, E. V. Anuja, Deepa K. Baby und Ragin Ramdas. „XLPE: Crosslinking Techniques and Recycling Process“. In Crosslinkable Polyethylene, 167–88. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0514-7_7.

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Ning, Chao, Carol Sze Ki Lin, David Chi Wai Hui und Gordon McKay. „Waste Printed Circuit Board (PCB) Recycling Techniques“. In Topics in Current Chemistry Collections, 21–56. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-90653-9_2.

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Bevis, M. J. „Non-Conventional Processing Techniques for Polymer Recycling“. In Frontiers in the Science and Technology of Polymer Recycling, 355–70. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-1626-0_16.

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Shah, Naseer Ali, Raja Muhammad Waqas Anjum und Yasir Rasheed. „Techniques Used for Recycling E-waste Worldwide“. In Soil Biology, 187–98. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-26615-8_13.

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Krause, Horst. „Recycling and Disposal Techniques for Energetic Materials“. In Demilitarisation of Munitions, 73–80. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5604-2_6.

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Dahlin, Cheryl L., David N. Nilsen, David C. Dahlin, Alton H. Hunt und W. Keith Collins. „Mineral Processing Techniques for Recycling Investment-Casting Shell“. In Ceramic Transactions Series, 31–41. 735 Ceramic Place, Westerville, Ohio 43081: The American Ceramic Society, 2012. http://dx.doi.org/10.1002/9781118371435.ch4.

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Ohyabu, N., Y. Nakamura, Y. Nakahara, A. Livshits, V. Alimov, A. Busnyuk, N. Notkin, A. Samartsev und A. Doroshin. „Active Control of Hydrogen Recycling by the Permeation and Absorption Techniques“. In Hydrogen Recycling at Plasma Facing Materials, 25–34. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4331-8_4.

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Toettcher, Jared E., Joshua F. Apgar, Anya R. Castillo, Bruce Tidor und Jacob White. „Recycling Circuit Simulation Techniques for Mass-Action Biochemical Kinetics“. In Simulation and Verification of Electronic and Biological Systems, 115–36. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0149-6_6.

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Soniya, M., und G. Muthuraman. „Removal of Organic Pollutants from Industrial Wastewaters Treated by Membrane Techniques“. In Water Conservation, Recycling and Reuse: Issues and Challenges, 171–84. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-3179-4_9.

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Konferenzberichte zum Thema "Recycling techniques"

Janani, T., J. S. Sudarsan und K. Prasanna. „Grey water recycling with corn cob as an adsorbent“. In THE 11TH NATIONAL CONFERENCE ON MATHEMATICAL TECHNIQUES AND APPLICATIONS. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5112366.

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Chae, Juhui, Hoon Lee, Jaein Kim und Inkyu Lee. „Self energy recycling techniques for MIMO wireless communication systems“. In ICC 2017 - 2017 IEEE International Conference on Communications. IEEE, 2017. http://dx.doi.org/10.1109/icc.2017.7996584.

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Bonifazi, G., und P. Massacci. „Imaging techniques for process optimization and control in glass recycling“. In Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials. IPMM'99 (Cat. No.99EX296). IEEE, 1999. http://dx.doi.org/10.1109/ipmm.1999.792528.

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Maslennikova, I., V. Kovalev, O. Eronko und T. Grishchenko. „Environmentally safe techniques in the recycling of mercury-containing materials“. In ENERGY QUEST 2014. Southampton, UK: WIT Press, 2014. http://dx.doi.org/10.2495/eq140531.

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Jenkins, Kim J., und Mike Yu. „Cold-Recycling Techniques Using Bitumen Stabilization: Where Is This Technology Going?“ In GeoHunan International Conference 2009. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/41043(350)26.

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Morozov, G. A., O. G. Morozov, R. R. Samigullin und A. R. Nasibullin. „Application of microwave technologies for increase of efficiency of polymeric materials recycling“. In 2011 VIII International Conference on Antenna Theory and Techniques (ICATT). IEEE, 2011. http://dx.doi.org/10.1109/icatt.2011.6170771.

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Jones, S. „Machine vision techniques for ink particle analysis within the paper recycling process“. In Fifth International Conference on Image Processing and its Applications. IEE, 1995. http://dx.doi.org/10.1049/cp:19950746.

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Draghici, Sebastian-Mihai, Maria-Iuliana Dascalu und Victor-Florin Constantin. „GAMIFIED LEARNING PLATFORM FOR INCREASING RECYCLING AWARENESS BASED ON MACHINE LEARNING TECHNIQUES“. In 15th International Technology, Education and Development Conference. IATED, 2021. http://dx.doi.org/10.21125/inted.2021.1599.

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Lee, Jung-Ho. „Life Extension of GT HGP Components by Recycling“. In ASME Turbo Expo 2000: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/2000-gt-0184.

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The life of hot gas path (HGP) components in gas turbine units can be extended through regular recycling. It is important to control the degradation of components under a limiting level by repairing on a regular basis and reusing them by recycling successively. Recycling mechanism of the first stage turbine blades is developed by investigating the characteristics of their typical degradations, repairability criteria, repair techniques, optimum timings of repair and economic evaluation model.

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Dutt, Devraj. „Life cycle analysis and recycling techniques of batteries used in renewable energy applications“. In 2013 International Conference on New Concepts in Smart Cities: Fostering Public and Private Alliances (SmartMILE). IEEE, 2013. http://dx.doi.org/10.1109/smartmile.2013.6708187.

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Berichte der Organisationen zum Thema "Recycling techniques"

Thompson, Marshall, und Ramez Hajj. Flexible Pavement Recycling Techniques: A Summary of Activities. Illinois Center for Transportation, Juli 2021. http://dx.doi.org/10.36501/0197-9191/21-022.

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Cold in-place recycling (CIR) involves the recycling of the asphalt portions (including hot-mix asphalt and chip, slurry, and cape seals, as well as others) of a flexible or composite pavement with asphalt emulsion or foamed asphalt as the binding agent. Full-depth reclamation (FDR) includes the recycling of the entire depth of the pavement and, in some cases, a portion of the subgrade with asphalt, cement, or lime products as binding agents. Both processes are extensively utilized in Illinois. This project reviewed CIR and FDR projects identified by the Illinois Department of Transportation (IDOT) from the Transportation Bulletin and provided comments on pavement designs and special provisions. The researchers evaluated the performance of existing CIR/FDR projects through pavement condition surveys and analysis of falling weight deflectometer data collected by IDOT. They also reviewed CIR/FDR literature and updated/modified (as appropriate) previously provided inputs concerning mix design, testing procedures, thickness design, construction, and performance as well as cold central plant recycling (CCPR) literature related to design and construction. The team monitored the performance of test sections at the National Center for Asphalt Technology and Virginia Department of Transportation. The researchers assisted IDOT in the development of a CCPR special provision as well as responded to IDOT inquiries and questions concerning issues related to CIR, FDR, and CCPR. They attended meetings of IDOT’s FDR with the Cement Working Group and provided input in the development of a special provision for FDR with cement. The project’s activities confirmed that CIR, FDR, and CCPR techniques are successfully utilized in Illinois. Recommendations for improving the above-discussed techniques are provided.

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Al-Qadi, Imad, Hasan Ozer, Mouna Krami Senhaji, Qingwen Zhou, Rebekah Yang, Seunggu Kang, Marshall Thompson et al. A Life-Cycle Methodology for Energy Use by In-Place Pavement Recycling Techniques. Illinois Center for Transportation, Oktober 2020. http://dx.doi.org/10.36501/0197-9191/20-018.

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Worldwide interest in using recycled materials in flexible pavements as an alternative to virgin materials has increased significantly over the past few decades. Therefore, recycling has been utilized in pavement maintenance and rehabilitation activities. Three types of in-place recycling technologies have been introduced since the late 70s: hot in-place recycling, cold in-place recycling, and full-depth reclamation. The main objectives of this project are to develop a framework and a life-cycle assessment (LCA) methodology to evaluate maintenance and rehabilitation treatments, specifically in-place recycling and conventional paving methods, and develop a LCA tool utilizing Visual Basic for Applications (VBA) to help local and state highway agencies evaluate environmental benefits and tradeoffs of in-place recycling techniques as compared to conventional rehabilitation methods at each life-cycle stage from the material extraction to the end of life. The ultimate outcome of this study is the development of a framework and a user-friendly LCA tool that assesses the environmental impact of a wide range of pavement treatments, including in-place recycling, conventional methods, and surface treatments. The developed tool provides pavement industry practitioners, consultants, and agencies the opportunity to complement their projects’ economic and social assessment with the environmental impacts quantification. In addition, the tool presents the main factors that impact produced emissions and energy consumed at every stage of the pavement life cycle due to treatments. The tool provides detailed information such as fuel usage analysis of in-place recycling based on field data.

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Carruth, William D. Evaluation of In-Place Asphalt Recycling for Airfield Applications. Engineer Research and Development Center (U.S.), Juli 2021. http://dx.doi.org/10.21079/11681/41142.

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Over the last few decades, in-place recycling of asphalt pavements has seen increased use by the highway industry, primarily to take a dvantage of potential cost and logistical savings compared to conventional reconstruction. More recently, the U.S. Navy and Federal Aviation Administration have allowed recycling to be used on airfields with lighter traffic. This report contains a discussion of in-place recycling design considerations obtained from a literature review of its use in the highway industry. Observations developed from a review of airfield pavement projects that have utilized recycling is also included. A structural analysis was performed using the Pavement-Transportation Computer Assisted Structural Engineering (PCASE) tool to determine typical stiffness values that recycled layers must achieve to support various types of military aircraft traffic for different pavement structures. Overall, in-place recycling is recommended for consideration as a rehabilitati on technique for military airfield pavements, and further investigation is recommended before it is implemented it into design guidance.

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Koyanaka, Shigeki, Hitoshi Ohya und Shigehisa Endoh. Study on New grinding Technique to Simplify the Recycling Process of Scrap Electronics~Improvement of Selective Grinding Effect by Real-Time Control of the Grinding Conditions. Warrendale, PA: SAE International, Mai 2005. http://dx.doi.org/10.4271/2005-08-0187.

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