Готові списки джерел за темами / Waste wool

Добірка наукової літератури з теми "Waste wool"

Автор: Grafiati
Опубліковано: 14 березня 2023

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Статті в журналах з теми "Waste wool"

1

Yeon, Jun Oh, and Kyoung Woo Kim. "Analysis of Absorption Coefficient for Eco-Friendly Acoustical Absorbers." Advanced Materials Research 831 (December 2013): 58–61. http://dx.doi.org/10.4028/www.scientific.net/amr.831.58.

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Анотація:
Primarily used for domestic buildings as a sound absorber are glass wool, rock wool, etc. These absorbers as well as waste absorber created by recycling wastes, PP+PET fiber absorber made from polypropylene and polyester, wood wool board bonded with finely sliced roots of trees and foamed aluminum absorber are recyclable eco-friendly absorbers that are constantly being developed. In this study, we compared the sound absorption performance of currently used absorbers and eco-friendly building absorbers. As a result, the NRC (Noise Reduction Coefficient) was found to be 0.85 for glass wool, 0.95 for rock wool, and 0.70 for polyester, 0.65 for waste absorber, 0.75 for PET+ PP fiber absorber, 0.40 for wood wool board, and 0.75 for foamed aluminum absorber. Based on the results of these absorption coefficients, we expect the usability of the absorbers continues to increase as future eco-friendly building absorbers.
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2

Zheljazkov (Jeliazkov), Valtcho, Ekaterina Jeliazkova, and Nedko Nedkov. "Wool and Hair Waste as Nutrient Source for High-value Crops." HortScience 41, no. 4 (July 2006): 995A—995. http://dx.doi.org/10.21273/hortsci.41.4.995a.

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Анотація:
Container and field experiments were conducted to evaluate sheep wool wastes and human hair wastes as soil amendments and nutrient sources for high-value crops. Overall, wool-waste or hair-waste additions to soil increased yields from basil, garden sage, peppermint, valerian, thorn apple, marigold, foxglove, and swiss chard; increased the amount of secondary metabolites (such as essential oils and alkaloids); increased NH4-N and NO3-N in the soil; and increased total N (and protein) content in plant tissue. The wool-waste or hair-waste additions did not affect soil microbial biomass, but decreased mycorrhizae colonization of plant roots. Scanning electron microscopy (SEM) and Energy Dispersive X-ray (EDX) analyses indicated that some of the wool and hair in soil from the container and field experiments (after two field seasons and several harvests) retained its original structure, a significant amount of S, some N, and was not fully decomposed. Results from this study suggest that wool and hair wastes can be used as soil amendment and nutrient source for high-value container or field crops.
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3

PRAJAPAT, GARIMA, and PRAVEEN PUROHIT. "MITIGATION OF METAL ION POLLUTION FROM INDUSTRIAL WASTE WATER USING WASTE WOOL." International Journal of Modern Physics: Conference Series 22 (January 2013): 619–25. http://dx.doi.org/10.1142/s2010194513010751.

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Анотація:
A study on the adsorption of copper (II) ions from the aqueous solution on waste wool had been carried out to analyze the adsorption capacity of waste wool, thereby aiming towards mitigation of metal ion pollution in industrial waste water. The effect of varying concentration of copper ions and varying time period, was studied on fixed weight of waste wool. The initial and final concentration of copper ions was measured by conductometric and spectrophotometric methods. Adsorption data were modeled with the langmuir and freundlich adsorption isotherms. The isotherm and first order equation were found to be applicable. Removal of metal ions using industrial waste wool is found to be favourable. Thus the work can be extended to study various physico-chemical parameters for removal of copper (II) ions from industrial effluents using waste wool. A later work can be involved where the waste wool adsorption parameter can be further utilized for composite ceramic products.
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4

Jetsu, Petri, Markku Vilkki, and Ismo Tiihonen. "Utilization of demolition wood and mineral wool wastes in wood-plastic composites." Detritus, no. 10 (March 5, 2020): 19–25. http://dx.doi.org/10.31025/2611-4135/2020.13916.

Повний текст джерела
Анотація:
Wood and mineral wool fractions from demolished buildings were sorted into different categories and processed to the suitable grain size needed for the manufacturing of wood-plastic composites. Processed construction and demolition waste materials mixed with plastics and additives were extruded into hollow test bars using a conical rotary extruder. Test specimens needed for measurements were cut from test bars. The results showed that the mechanical performance of wood-plastic composites based on construction and demolition waste wood, and mineral wool was at a good level and comparable to commonly used wood-plastic composites in decking applications. The highest strength properties of wood-plastic composites were achieved with a plywood fraction and the lowest with materials containing a particle/fibre board fraction. The mechanical performance can be improved by utilizing mineral wool in the formulation of wood-plastic composites. A material mixture containing several wood fractions as well as mineral wool also gave good strength properties. Only a minor reduction in strength properties was measured when recycled plastic was utilized meaning that wood-plastic composites suitable for many types of applications can be produced entirely from recycled materials.
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5

Vacula, Miroslav, Martin Klvač, Robert Mildner, and Šárka Keprdová. "Parameters of Cement Bonded Particle Boards Modified with Stone Wool Fibre." Advanced Materials Research 923 (April 2014): 195–201. http://dx.doi.org/10.4028/www.scientific.net/amr.923.195.

Повний текст джерела
Анотація:
The contribution deals with possibilities of using waste from the production of stone wool for modification of the existing composition of cement boards . Waste - the fibres from the production of stone wool - was used as an alternative to the standardly used wooden filler (chips, sawdust). The waste was tested in laboratory and then added to the mixture for the production of cement-bonded particleboards as a substitute for wood filler. The physical and mechanical properties of laboratory-made boards with a modified recipe were monitored.
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6

Haque, Abu Naser Md Ahsanul, and Maryam Naebe. "Waste Wool Powder for Promoting Plant Growth by Moisture Retention." Sustainability 14, no. 19 (September 27, 2022): 12267. http://dx.doi.org/10.3390/su141912267.

Повний текст джерела
Анотація:
Natural wastes are widely used as composts for plant growth. However, wool waste has received little attention in this regard, despite its nitrogen-rich chemical structure owing to amide groups. A few studies have been conducted for soil amendment using wool, mostly in raw or pellet form. However, despite the possible consistent mixing and more uniform effect of powders inside soil, wool has never been implemented in powder form in soil for improving moisture. This study demonstrates the effectiveness of using wool as a powder, facilitating better mixing and spreading in soil. Results show that wool powders are more effective in retaining soil moisture compared to wool pellets and are comparable to commercial fertiliser. The findings further indicate that a balanced amount of wool is required to maintain a proper moisture level (not too wet or dry) to promote actual plant growth.
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7

(Zheljazkov), Valtcho Jeliazkov, Glenn Stratton, James Pincock, Stephanie Butler, and Ekaterina Jeliazkova. "Wool and Hair Waste as Nutrient Source for High-value Crops." HortScience 40, no. 4 (July 2005): 1133A—1133. http://dx.doi.org/10.21273/hortsci.40.4.1133a.

Повний текст джерела
Анотація:
One small-plotfield and five container experiments were conducted to evaluate sheep wool-wastes and human hair-wastes as soil amendments and nutrient sources for high-value crops. Overall, the wool-waste or hair-waste addition to soil: 1) increased yields from basil, garden sage, peppermint, valerian, thorn apple, marigold, foxglove, and swiss chard; 2) increased the amount of secondary metabolites (such as essential oils and alkaloids); 3) increased NH4-N and NO3-N in soil; 4) increased total N (and protein) content in plant tissue; 5) did not affect soil microbial biomass; and 6) decreased mycorrhizae colonization of plant roots. Scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) analyses indicated that some of the wool and hair in soil from the container and field experiments (after two field seasons and several harvests) retained its original structure, retained a significant amount of S and some N, and was not fully decomposed. Our results indicate that single addition of wool or hair-waste of 0.33% by weight to soil would support two to five harvests or crops, without addition of other fertilizers, and may improve soil biological and chemical characteristics.
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8

Yap, Zhen Shyong, Nur Hafizah A. Khalid, Zaiton Haron, Azman Mohamed, Mahmood Md Tahir, Saloma Hasyim, and Anis Saggaff. "Waste Mineral Wool and Its Opportunities—A Review." Materials 14, no. 19 (October 2, 2021): 5777. http://dx.doi.org/10.3390/ma14195777.

Повний текст джерела
Анотація:
Massive waste rock wool was generated globally and it caused substantial environmental issues such as landfill and leaching. However, reviews on the recyclability of waste rock wool are scarce. Therefore, this study presents an in-depth review of the characterization and potential usability of waste rock wool. Waste rock wool can be characterized based on its physical properties, chemical composition, and types of contaminants. The review showed that waste rock wool from the manufacturing process is more workable to be recycled for further application than the post-consumer due to its high purity. It also revealed that the pre-treatment method—comminution is vital for achieving mixture homogeneity and enhancing the properties of recycled products. The potential application of waste rock wool is reviewed with key results emphasized to demonstrate the practicality and commercial viability of each option. With a high content of chemically inert compounds such as silicon dioxide (SiO2), calcium oxide (CaO), and aluminum oxide (Al2O3) that improve fire resistance properties, waste rock wool is mainly repurposed as fillers in composite material for construction and building materials. Furthermore, waste rock wool is potentially utilized as an oil, water pollutant, and gas absorbent. To sum up, waste rock wool could be feasibly recycled as a composite material enhancer and utilized as an absorbent for a greener environment.
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9

Vachnina, T. N., I. V. Susoeva, A. A. Titunin, and S. V. Tsybakin. "Unused Plant Waste and Thermal Insulation Composition Boards on their Basis." Key Engineering Materials 887 (May 2021): 480–86. http://dx.doi.org/10.4028/www.scientific.net/kem.887.480.

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Анотація:
Many plant wastes are not currently used in production, they are disposed of in landfills or incinerated. The aim of this study is to develop a composite thermal insulation material from unused spinning waste of flax and cotton fibers and soft wood waste. Samples of thermal insulation materials from plant waste were made by drying using the technology of production of soft wood fiber boards. For composite board defined physico-mechanical characteristics and thermal conductivity. The experiment was carried out according to a second-order plan, regression models of the dependences of the material indicators on the proportion of the binder additive, drying temperature and the proportion of wood waste additives were developed. The study showed that composites from unused spinning waste of plant fibers and soft wood waste have the necessary strength under static bending, the swelling in thickness after staying in water is much lower in comparison with the performance of boards from other plant fillers. The coefficient of thermal conductivity of the boards is comparable with the indicator for mineral wool boards.
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10

Qi, Guo Chao, Feng Jun Shan, and Qu Kai Zhang. "Research and Development of Mineral Wool Production with High Temperature Industrial Residual Materials." Materials Science Forum 743-744 (January 2013): 301–5. http://dx.doi.org/10.4028/www.scientific.net/msf.743-744.301.

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Анотація:
Mineral wool is a type of important material for basic infrastructure development and national economy. It is widely used as insulation material in construction industries. Some high temperature industrial solid waste materials, such as blast furnace slag, cyclone slag and some metal slag, after composition adjusting and reheating, can be directly used to produce mineral wool. The recycle of residual heat in the hot solid wastes can decrease the cost of mineral wool and is beneficial for energy conservation, environmental protection and social sustainable development. The development and technical characteristics of mineral wool production with blast furnace slag, cyclone slag and some non-ferrous metal slag have been analyzed in this paper, and the energy conservation technique in managing high temperature solid waste has been also discussed.
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Більше джерел

Дисертації з теми "Waste wool"

1

Berechet, M. D., C. Gaidau, M. Niculescu, and M. Stanca. "Keratin hydrolysates obtained from wool waste." Thesis, Київський національний університет технологій та дизайну, 2018. https://er.knutd.edu.ua/handle/123456789/11989.

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2

BHAVSAR, PARAG. "Studies in green hydrolysis of waste wool." Doctoral thesis, Politecnico di Torino, 2018. http://hdl.handle.net/11583/2705632.

Повний текст джерела
Анотація:
A large amount of raw wool, practically unserviceable for textile uses, is generated in Europe from sheep shearing and butchery; this is a byproduct that is either dumped, burned or sent to landfill. Following the European Commission regulations on animal by-product control, unserviceable raw wool is classified as a category 3 special waste materials, and its collection, storage, transport, treatment, use, and disposal is subject to European Union regulations because of a potential risk source to human and animal health. Raw wool has a noticeable chemical potential to conceive and generate a broad category of products, spreading from protein-based scaffold tissues to fertilizers. Considering all these points, raw wool has potential to create a circular economy rather than just wasted as an unserviceable material. In general, raw wool finds its application in insulation panels, composites, carpets, etc., but needs a complete pre-treatment before use. The problems begin with the use of raw wool is that; it cannot be used as a fertilizer without any previous pretreatment such as washing because of the potential risk of infection and its slow degradation process in the soil environment. For these reasons, fertilization with untreated greasy wool is forbidden by the EU legislation, which strictly provides guidelines for raw wool storage, transportation, and disposal. These costs heavily weigh on the profit of sheep farmers. The primary objective of this study is to develop the cost-effective, sustainable process to use raw wool prior to any pretreatment. This study aims at • Converting waste wool into nitrogen fertilizers at a commercial scale for grassland management and cultivation purposes. • Development of potential novel applications of hydrolyzed wool In order to achieve the desired aim of fertilizer, the chemical breakdown of wool needs to be done using sustainable way, i.e., chemical-free process. In general, hydrolysis process is performed using acids, bases, and enzymes. The literature survey on existing hydrolysis processes, their limitations, industrial scale-up viability, sustainability, cost-effectiveness, etc., lead towards the process where chemical transformation is based on a green economically sustainable hydrolysis treatment using only green solvent superheated water. The other the advantage of green hydrolysis is that it sterilizes the wool at high temperature, which indirectly overcomes the problem of pretreatment prior to use and infection problem in the application phase.In order to understand the extent of degradation and industrial viability of the superheated water hydrolysis process with the aim of fertilizer; the development the process implies two steps: the first one at laboratory scale (batch process) and the second at semi-industrial scale (continuous process). A set of experiments on batch scale reactors was performed to monitor process parameters and extent a degree of hydrolysis on raw wool; to establish the ground for designing and construction of semi-industrial scale reactor. The green hydrolysis process optimization was carried out in batch and semi-industrial scale reactors by varying parameters such as temperature, wool density, material to liquor ratio, time, depending on the extent of degradation of the final hydrolyzed product. Controlled treatment with superheated water converts wool keratin into simpler compounds. At the end of the process, it is possible to obtain a hydrolyzed product in either solid or liquid phase depending on the extent of hydrolysis parameters implemented. The presence of amino acids, primary nutrients, and micronutrients in wool hydrolyzates, along with a concentration of heavy metals below the standard limit, confirm the possibility of using wool hydrolyzates as nitrogen based ecologically sound fertilizer. On the way to find the possible application of keratin hydrolyzate other than fertilizer, which overcomes the environmental problem of wool waste and byproducts were found to be a foaming agent for dyeing. The foam-forming the behavior of the keratin hydrolyzate along with its application in dyeing was studied to develop sustainable and green dyeing process. The surface tension, foam stability, blow ratio, bubble size of the keratin hydrolyzate in aqueous solutions with and without dyeing auxiliaries were determined. The dyeing influential parameter such as wet pickup was studied to identify their effect on dye fixation and color strength. The foam dyeing was compared with conventional cold-pad batch and pad-steam processes for cotton and wool, respectively. The combination of green hydrolysis and the biodegradable keratin hydrolyzate resulted in the sustainable green dyeing process.
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3

BHAVSAR, PARAG. "Studies in Green Hydrolysis of Waste Wool." Doctoral thesis, Politecnico di Torino, 2018. http://hdl.handle.net/11583/2706807.

Повний текст джерела
Анотація:
A large amount of raw wool, practically unserviceable for textile uses, is generated in Europe from sheep shearing and butchery; this is a byproduct that is either dumped, burned or sent to landfill. Following the European Commission regulations on animal by-product control, unserviceable raw wool is classified as a category 3 special waste materials, and its collection, storage, transport, treatment, use, and disposal is subject to European Union regulations because of a potential risk source to human and animal health. Raw wool has a noticeable chemical potential to conceive and generate a broad category of products, spreading from protein-based scaffold tissues to fertilizers. Considering all these points, raw wool has potential to create a circular economy rather than just wasted as an unserviceable material. In general, raw wool finds its application in insulation panels, composites, carpets, etc., but needs a complete pre-treatment before use. The problems begin with the use of raw wool is that; it cannot be used as a fertilizer without any previous pretreatment such as washing because of the potential risk of infection and its slow degradation process in the soil environment. For these reasons, fertilization with untreated greasy wool is forbidden by the EU legislation, which strictly provides guidelines for raw wool storage, transportation, and disposal. These costs heavily weigh on the profit of sheep farmers. The primary objective of this study is to develop the cost-effective, sustainable process to use raw wool prior to any pretreatment. This study aims at • Converting waste wool into nitrogen fertilizers at a commercial scale for grassland management and cultivation purposes. • Development of potential novel applications of hydrolyzed wool In order to achieve the desired aim of fertilizer, the chemical breakdown of wool needs to be done using sustainable way, i.e., chemical-free process. In general, hydrolysis process is performed using acids, bases, and enzymes. The literature survey on existing hydrolysis processes, their limitations, industrial scale-up viability, sustainability, cost-effectiveness, etc., lead towards the process where chemical transformation is based on a green economically sustainable hydrolysis treatment using only green solvent superheated water. The other the advantage of green hydrolysis is that it sterilizes the wool at high temperature, which indirectly overcomes the problem of pretreatment prior to use and infection problem in the application phase.In order to understand the extent of degradation and industrial viability of the superheated water hydrolysis process with the aim of fertilizer; the development the process implies two steps: the first one at laboratory scale (batch process) and the second at semi-industrial scale (continuous process). A set of experiments on batch scale reactors was performed to monitor process parameters and extent a degree of hydrolysis on raw wool; to establish the ground for designing and construction of semi-industrial scale reactor. The green hydrolysis process optimization was carried out in batch and semi-industrial scale reactors by varying parameters such as temperature, wool density, material to liquor ratio, time, depending on the extent of degradation of the final hydrolyzed product. Controlled treatment with superheated water converts wool keratin into simpler compounds. At the end of the process, it is possible to obtain a hydrolyzed product in either solid or liquid phase depending on the extent of hydrolysis parameters implemented. The presence of amino acids, primary nutrients, and micronutrients in wool hydrolyzates, along with a concentration of heavy metals below the standard limit, confirm the possibility of using wool hydrolyzates as nitrogen based ecologically sound fertilizer. On the way to find the possible application of keratin hydrolyzate other than fertilizer, which overcomes the environmental problem of wool waste and byproducts were found to be a foaming agent for dyeing. The foam-forming the behavior of the keratin hydrolyzate along with its application in dyeing was studied to develop sustainable and green dyeing process. The surface tension, foam stability, blow ratio, bubble size of the keratin hydrolyzate in aqueous solutions with and without dyeing auxiliaries were determined. The dyeing influential parameter such as wet pickup was studied to identify their effect on dye fixation and color strength. The foam dyeing was compared with conventional cold-pad batch and pad-steam processes for cotton and wool, respectively. The combination of green hydrolysis and the biodegradable keratin hydrolyzate resulted in the sustainable green dyeing process.
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4

Farrer, Joan. "Wool : from straw to gold : an ecological assessment of the lifecycle of wool from cradle to grave and beyond resulting in yarns composed of 100% post consumer waste." Thesis, Royal College of Art, 2000. https://researchportal.port.ac.uk/portal/en/theses/wool(7e0cff0d-33df-4717-9172-24ef43f85720).html.

Повний текст джерела
Анотація:
The objective of this research is to document the complex journey of wool from cradle to grave and beyond and to analyse the ethical and environmental cost of production from the farm to the knitwear factory, to retail and finally as post-consumer waste. The research findings make a contribution to the growing commercial and consumer in debate in this arcs. Under the spotlight is wool growing including genetic and chemical manipulation and environmental degradation. Human exploitation at manufacturing sites, in some of the poorest countries of the world is discussed. Finally, the involvement of government, charitable and commercial institutions in the business of textile waste disposal which currently takes the form of landfill, incineration and Third World dumping is highlighted. Experiments have been undertaken to produce a small range of knitwear yarns and garments composed of a blend of wool. cotton and polyester. regenerated from 100% post consumer waste originally in the form of wool garments, jeans and drinking bottles. This has involved an innovative collaboration with the local Authority, community groups, a national charity. a textile reclamation company, spinner and commercial knitter. The aim of the research both theoretical and practical is to demonstrate that there are practical ways to 'close the loop' and to flag up the need for design in the 21' Century to focus on post-consumer issues and the manufacture of aesthetic commercially viable products made from non-virgin materials.
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5

Böhme, Michael Henry. "Use of bio-waste as fertiliser for the protected vegetable cultivation." Technische Universität Dresden, 2018. https://tud.qucosa.de/id/qucosa%3A33317.

Повний текст джерела
Анотація:
The number of biogas plants in Germany is increasing from 3,711 in 2007 to 8,075 in 2016. In these biogas plants, it occurred more than 50 Mt digestate. Therefore, several investigations are started to use digestate as organic fertiliser mostly for field crop cultivation. Experiment with tomatoes was carried out were digestate was used as a supplement to the growing media in an amount of 5%, 15%, and 25%, compared with a treatment of mineral fertiliser and lupine wholemeal. The tomato yield was highest in the treatment with mineral fertilisation, the yield with 25% digestate was only a little lower. More experiments are necessary for particular regarding the amount and frequency of fertilization with digestate from biogas plants. In Germany and in Vietnam the number of sheep flocks is increasing, high amounts of uncleaned sheep wool are available. Because of the high amount of nutrients - especially nitrogen -, sheep wool pellets could be used as multi-functional fertiliser in vegetable cultivations. Four types of sheep wool pellets have been tested in protected cultivation. Tomatoes were cultivated in a greenhouse using substrate culture with perlite, bark compost, sheep wool slabs, respectively, and sheep wool pellets as fertiliser. Best growth and highest yield for tomatoes were obtained using pine bark and perlite as a substrate, both fertilised with sheep wool pellets. Based on the results of the yield and the analyses of the nutrient content in plants it seems that sheep wool pellets can be used, for the cultivation of vegetables in greenhouses.
Số lượng các nhà máy biogas tại CHLB Đức tăng từ 3.711 năm 2017 lên 8.075 năm 2016. Các nhà máy biogas sản sinh ra hơn 50 triệu tấn chất thải. Vì vậy đã có nhiều nghiên cứu liên quan đến sử dụng nguồn chất thải này làm phân bón hữu cơ cho canh tác nông nghiệp. Thí nghiệm với cà chua sử dụng chất thải biogas làm chất bổ sung dinh dưỡng cho giá thể trồng cây theo các tỷ lệ 5%, 15% và 25% đối chứng với công thức sử dụng phân hóa học và bột nguyên vỏ họ đậu. Năng suất cà chua thu được từ các công thức bổ sung chất thải biogas đều cao hơn đối chứng, chỉ có công thức bổ sung 25% có năng suất thấp hơn. Tuy nhiên vẫn cần có những nghiên cứu tiêp theo về lượng và tần xuất sử dụng bón phân với chất thải từ nhà máy biogas. Ở Đức và ở Việt Nam số lượng đàn cừu đang tăng lên, một lượng lớn lông cừu phế phẩm phát sinh. Với hàm lượng dinh dưỡng cao, đặc biệt là nitơ, viên nén từ lông cừu phế phẩm có thể sử dụng làm phân bón đa chức năng cho trồng trọt. Nghiên cứu đã sử dụng 4 loại viên nén lông cừu làm phân bón trong điều kiện trồng có kiểm soát. Cà chua được trồng trong nhà kính với 3 loại giá thể là perlite, vỏ cây thông đã ủ hoai, thảm lông cừu với phân bón là viên nén từ lông cừu phế phẩm. Năng suất cao nhất và đem lại sinh trưởng tốt nhất cho cây cà chua là công thức sử dụng vỏ cây thông và perlite. Dựa trên kết quả về năng suất và phân tích dinh dưỡng trong cây và sản phẩm, nghiên cứu cho thấy sự phù hợp của viên nén từ lông cừu phế phẩm làm phân bón cho canh tác rau trong nhà kính.
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6

Westfelt, Gustav, and Oliver Tiderström. "Svenska textil- och modeföretags inställning till att införa en svensk ullstandard : En studie om vilka åtgärder som kan genomföras för att nyttja mer svensk ull." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-26585.

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Анотація:
Svensk ull har länge blivit behandlad som en biprodukt. I dagsläget nyttjas ungefär 30 procent av den svenska ullen och resterande mängd antas slängas eller brännas på grund av ett bristande ekonomiskt incitament. Norge å andra sidan har sedan länge en väletablerad ullindustri som sköts med hjälp av statliga subventioner. Därtill sorteras och klassificeras norsk ull utifrån en ullstandard vilket gör att de lyckas nyttja 80 procent av sin råvara. En svensk motsvarighet av en standard finns inte i nuläget. I denna studie blandas kvalitativa intervjuer med en kvantitativ enkätundersökning för att undersöka svenska textil- och modeföretags inställning till att införa en ullstandard. Studien undersöker även möjliga åtgärder som kan vara nödvändiga att vidta för att svensk ull ska kunna nyttjas mer än vad den idag gör. Enkätundersökningen behandlar svenska textil- och modeföretag och efterfrågar deras vanor i hantering av ull samt deras inställning till en eventuell svensk ullstandard. Intervjuundersökningen delger information från respondenter längs ullens textila värdekedja. Resultatet av studien visar att det finns en positiv inställning till en svensk ullstandard, dock kan en tveksamhet synas hos vissa respondenter som bland annat menar att det blir för komplext. Vidare visar studien att en otillräcklig infrastruktur, bristande kunskap i ullhantering och låg efterfrågan är problem som svensk ullindustri har. Vid åtgärdade problem kan svensk ull som resurs förväntas nyttjas i större omfattning.
Swedish wool is being put aside as a by-product. At present, approximately 30 percent of Swedish wool is utilized, where the remainder is assumed to be burnt or discarded due to a lack of economic incentive. Norway, on the other hand, has a well-established wool industry that is managed with help from government subsidies. In addition, Norwegian wool is sorted and classified through a wool standard, helping them to utilize 80 percent of their raw material. A Swedish equivalent to a standard does not currently exist. In this study, qualitative interviews are mixed with a quantitative survey to examine Swedish textile and fashion companies’ attitudes towards implementing a wool standard. The study also examines potential measures that may be necessary to take in order for Swedish wool to be utilized more than it does today. The survey is addressed to swedish companies and asks about their habits in wool and attitudes towards a potential swedish wool standard. The interviews provide information from respondents along the wool’s textile value chain. The results of the study show that there is a positive attitude towards a wool standard, however, a hesitation can be seen in some respondents who, among other factors, think the entire process becomes too complex. Furthermore, the study shows that inadequate infrastructure, lack of knowledge in woolhandling and low demand are problems that the Swedish wool industry has. By addressing these issues, Swedish wool as a resource can be expected to be utilized more.
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7

Čermák, Jan. "Studium využitelnosti odpadů z izolačních materiálů." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227726.

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Thesis deals with options of use waste from insulating materials. Theoretical part of thesis describes waste and insulating materials used in civil engineering. Practical part of thesis describes utilization of waste from mineral wool. Its output are options of use waste from mineral wool and selected physical properties of recycled material.
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8

Rizzo, Charlotte. "Wood Waste Derived Fuel: State of the Ard and Development Prospects in France : Focus on Construction and Demolition Wood Wastes." Thesis, KTH, Industriell ekologi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-55330.

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Wood wastes are mainly originated from forestry, wood industry and construction and demolition sites activities. Among them, three types of wood waste can be identified: untreated wood waste (raw wood considered as biomass), slightly treated wood wastes (issued from coating or gluing treatments) and highly treated wood wastes (issued from impregnation treatments with CCA and creosote, and considered as hazardous wastes).  According to the regulation, management of wastes in Europe is oriented towards more recycling and less elimination. However, among the French requirements, three main trends can be observed in regards of wood waste recovery: only treated wood wastes can be recovered in combustion units, no extensive technologies are allowed to recover highly treated wood wastes, which must then be eliminated by incineration, and slightly treated wood wastes can be either recovered as particle boards or eliminated.  However, in this context, the amount of wood wastes from construction and demolition sites reach 7 million of tons in France. Among them, 5% correspond to raw wood, and 25% are slightly treated. The high combustion potential of wood wastes is moreover an opportunity to replace conventional fuel used in combustion units.  The four main methods used to treat wood wastes are recycling as particleboards, combustion, incineration and land filling. Due to the various typologies of wood wastes, a conditioning step is needed before recovery. Then, if combustion seems to present advantages because of its neutral carbon impact, life cycle analysis demonstrates that emissions of other pollutants are observed. In addition, it is proved that controlled elimination methods are less impacting than unequipped recovery ones. Recycling is then not always the best practice in regards of the impacts considered in the study.  Competition among the different methods treatment and low prices of wood wastes are specific economical aspects that could influence the development of the field. Moreover, the increasing acceptance of people for recovery and local waste treatment methods, as well as the need for energetically independency are factors that can likely promote wood waste derived fuel. These driving forces are evolving in a very rapid way. Regulation is moving towards implementation of standards to promote the development of slightly treated wood waste derived fuel. Technological and social improvement such as sorting at source, and the development of end of pipe treatment methods are also likely to have positive effects.  An integrated solution to develop wood waste derived fuel would be to implement strong financial incentives in favour of clean technologies for wood wastes recovery methods. This enhancement could then be the mean to answer the double challenge of wood waste treatment and fossil fuel replacement.  Wood wastes are mainly originated from forestry, wood industry and construction and demolition sites activities. Among them, three types of wood waste can be identified: untreated wood waste (raw wood considered as biomass), slightly treated wood wastes (issued from coating or gluing treatments) and highly treated wood wastes (issued from impregnation treatments with CCA and creosote, and considered as hazardous wastes).  According to the regulation, management of wastes in Europe is oriented towards more recycling and less elimination. However, among the French requirements, three main trends can be observed in regards of wood waste recovery: only treated wood wastes can be recovered in combustion units, no extensive technologies are allowed to recover highly treated wood wastes, which must then be eliminated by incineration, and slightly treated wood wastes can be either recovered as particle boards or eliminated.  However, in this context, the amount of wood wastes from construction and demolition sites reach 7 million of tons in France. Among them, 5% correspond to raw wood, and 25% are slightly treated. The high combustion potential of wood wastes is moreover an opportunity to replace conventional fuel used in combustion units.  The four main methods used to treat wood wastes are recycling as particleboards, combustion, incineration and land filling. Due to the various typologies of wood wastes, a conditioning step is needed before recovery. Then, if combustion seems to present advantages because of its neutral carbon impact, life cycle analysis demonstrates that emissions of other pollutants are observed. In addition, it is proved that controlled elimination methods are less impacting than unequipped recovery ones. Recycling is then not always the best practice in regards of the impacts considered in the study.  Competition among the different methods treatment and low prices of wood wastes are specific economical aspects that could influence the development of the field. Moreover, the increasing acceptance of people for recovery and local waste treatment methods, as well as the need for energetically independency are factors that can likely promote wood waste derived fuel. These driving forces are evolving in a very rapid way. Regulation is moving towards implementation of standards to promote the development of slightly treated wood waste derived fuel. Technological and social improvement such as sorting at source, and the development of end of pipe treatment methods are also likely to have positive effects.  An integrated solution to develop wood waste derived fuel would be to implement strong financial incentives in favour of clean technologies for wood wastes recovery methods. This enhancement could then be the mean to answer the double challenge of wood waste treatment and fossil fuel replacement.
Träavfall kommer från skogsbruk, trä‐ och byggbranschen och rivningsplatser. Bland dem kan tre typer av träavfall identifieras: obehandlat träavfall (obehandlat trä betraktas som biomassa), lätt behandlat träavfall (från beläggning eller limning) och högbehandlat träavfall (från impregnering med CCA och kreosot, betraktas som farligt avfall). Enligt avfallsförordningen, är hantering av avfall i Europa inriktad mer mot återvinning och mindre mot eliminering. Bland de franska kraven, kan tre huvudsakliga tendenser iakttas för återvinning av träavfall: endast behandlat avfall kan behandlas i förbränningsanläggningar för energiutvinning, högbehandlat träavfall måste elimineras genom förbränning och lätt behandlat avfall kan antingen återvinnas som spånskivor eller elimineras. I detta sammanhang uppgår mängden träavfall från bygg‐ och rivningsplatser till 7 miljoner ton i Frankrike. Bland dem, motsvarar 5% obehandlat trä, och 25% är lätt behandlat. Den höga förbränningspotentialen för träavfall ger dessutom en möjlighet att ersätta konventionellt bränsle som används i förbränningsanläggningar. De fyra huvudsakliga metoder som används för att behandla träavfall är återvinning i spånskivor, förbränning med energiutvinning, förbränning och deponering. På grund av olika typer av träavfall, krävs ett konditioneringsteg innan återvinning. Även om förbränningen är fördelaktigt på grund av sitt neutrala kol, visar livscykelanalyser utsläpp av andra föroreningar. Dessutom visas att kontrollerade elimineringsmetoder har mindre miljöpåverkar än återvinningsmetoder som ej har rätt utrustning. Återvinning är alltså inte alltid att föredra om man beaktar de effekter som gjorts vid denna undersökningen. Konkurrensen mellan olika behandlingsmetoder och låga priser på träavfall är specifika ekonomiska aspekter som skulle kunna påverka utvecklingen inom området. Dessutom, den ökande acceptansen av människor för återvinning och lokala avfallshanteringsmetoder, liksom behovet av inhemska energikällor är faktorer som sannolikt kan främja bränsle från träavfall. Dessa drivkrafter utvecklas på ett mycket snabbt sätt. Avfallsförordningen är på väg mot införandet av standarder för att främja utvecklingen av lätt behandlat träavfalls bränsle. Tekniska och sociala förbättringar, exempelvis källsortering och utveckling av återvinningsmetoder ger också sannolikt positiva effekter. En integrerad lösning för att utveckla bränsle från träavfall skulle vara att genomföra starka ekonomiska incitament till förmån för ren teknik för återvinning av träavfall. Den här förbättringen kan sedan vara ett medel att anta den dubbla utmaningen av hantering av träavfall och ersättning av fossila bränslen.
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9

Liu, Jing, and 刘婧. "Digest: from waste wood to habitat : recycle and reuse of waste wood in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hub.hku.hk/bib/B50704096.

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10

Liang, Li. "Recycling of concrete waste with wood waste through heating compaction." Thesis, KTH, Betongbyggnad, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-275674.

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Concrete, as primary building material, is widely used in most construction project. For this reason, large amounts of concrete waste were generated from construction and demolition. One way to reuse concrete waste is to use it as backfill material for landfilling and road bases. While the demand for backfill material is decreasing as the basic infrastructure construction gradually completes. Another way to reuse concrete waste is to grind it and use it as aggregate in casting new concrete. However, the reuse as aggregate for casting concrete requires large amount of cement. It is unsustainable because the production of cement causes significant amounts of carbon dioxide emission. How to deal with the concrete waste in a sustainable way is presently an urgent issue. Powder compaction is a new approach to completely recycle concrete waste in an environmentally friendly way. This new method was studied in the Sakai lab of the Institute of Industrial Science, The University of Tokyo. The process consists of crushing and milling concrete waste into a fine powder, filling the powder into moulds and compacting it under high pressure. By this process concrete waste powder can be turned into a solid concrete with mechanical properties so that it has potentials to be used again as a building material. Data from previous studies show that the compacted concrete waste can reach strength for construction but the required compaction pressure is quite high. Wood flour can be added in compaction for improving tensile strength and reducing compaction pressure. Lignin is a wood substance that melts under high temperature, fills gaps and improves bonding between particles. Cellulose from the wood substance functions as fibres which improves tensile strength. Wood waste from production of timber building materials, furniture and other wooden products also forms a larger quantities. Recycling of concrete waste with wooden waste through heating compaction is a potentially sustainable method. This Master thesis presents research on the effect from different production conditions on the bending strength of recycled concrete waste with wood waste through heating compaction. The condition factors studied were compaction duration, compaction pressure, concrete proportion, mixture percentage, temperature and particle size of wood flour. To enhance the water resistance of this recycled product, different water resistance treatments were discussed theoretically. The independence of production condition factors was analysed using a statistic method. Results indicated that within a certain range, an increase in compaction duration, compaction pressure, the percentage of wood waste and temperature improves the bending strength of the recycled products. Using smaller particle size of wood flour cannot improve compaction but contribute to give higher bending strength. The mechanical properties of these recycled products suggest application as non-bearing building material, such as decoration tiles and bricks for partition walls. The application as a structural material is expected in the future as improvement treatments are discovered.
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Книги з теми "Waste wool"

1

Burling-Claridge, G. R. Evaluation of a carding waste test for wool. Christchurch: Wronz, 1989.

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2

Spies, Peter. Anaerobe Behandlung fetthaltigen Abwassers am Beispiel einer Wollwäscherei. Hannover: Institut für Siedlungswasserwirtschaft und Abfalltechnik der Universität Hannover, 1986.

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Fokin, Sergey. Improvement of technical means for processing waste from logging operations for fuel chips in felling conditions. ru: INFRA-M Academic Publishing LLC., 2017. http://dx.doi.org/10.12737/24135.

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Currently, wood waste in the form of a dissected crown on the ground and the root fraction of the tree's biomass in the ground remain in felling areas, becoming potentially dangerous combustible materials in the event of forest fires, as well as obstacles to reforestation activities, and possible foci of infections. Shredding wood waste into wood chips will solve the problem of their disposal by using fuel chips as an additional source of heat energy. In the present work, the influence of design and operational parameters of milling machines with a modernized hydraulic system and equipped with active working bodies on the process of shredding wood waste is established. The annual economic effect from the introduction of the developed complex of wood waste shredding machines and economic indicators from the use of fuel chips are given. This publication is intended for undergraduates and postgraduates engaged in scientific research in the field of forestry mechanization.
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4

United States. Office of Solid Waste, ed. Best demonstrated available technology (BDAT) background document for wood preserving wastes F032, F034, and F035: Final. Washington, D.C. (401 M St., S.W., Washington 20460): U.S. Environmental Protection Agency, Office of Solid Waste, 1996.

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5

Everson, Vern A. Wisconsin wood residue study: Wood residue from manufacturing excluding sawmills. [Madison, Wis.]: Wisconsin Dept. of Natural Resources, Bureau of Forestry, 1993.

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6

MSE, Inc. Technical Services Division. Montana Department of Transportation treated timber bridge sampling report. Butte, Mont: MSE Inc., 1991.

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7

Environment, Alberta Alberta. Standards and guidelines for the use of wood ash as a liming material for agricultural soils. [Edmonton]: Alberta Environment, Science and Standards Branch, 2002.

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8

Brent, English, and Forest Products Laboratory (U.S.), eds. Waste-wood-derived fillers for plastics. Madison, Wis. (One Gifford Pinchot Dr., Madison 53705-2398): U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1996.

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9

Brent, English, and Forest Products Laboratory (U.S.), eds. Waste-wood-derived fillers for plastics. Madison, Wis: U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1996.

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10

Wood waste replaces electricity, oil, propane. Helena, Mont: Montana Dept. of Natural Resources and Conservation, Energy Division, 1990.

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Частини книг з теми "Waste wool"

1

Hustvedt, Gwendolyn, Erica Meier, and Tina Waliczek. "The Feasibility of Large-Scale Composting of Waste Wool." In Green Fashion, 95–107. Singapore: Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-10-0111-6_4.

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2

Kang, Ki Hwan, Sang Youl Kim, Yong Su Um, and Bo Young Hur. "Fabrication Characteristics of Mineral Wool Fiber Used the Waste." In Materials Science Forum, 602–5. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-995-4.602.

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3

Körner, Ina, Jenna Jambeck, Hans Leithoff, and Volker Lenz. "Preservative Treated Wood." In Solid Waste Technology & Management, 971–81. Chichester, UK: John Wiley & Sons, Ltd, 2010. http://dx.doi.org/10.1002/9780470666883.ch60.

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4

Bishop, Edward. "The Waves: ‘A fin in a waste of waters’." In Virginia Woolf, 98–115. London: Macmillan Education UK, 1991. http://dx.doi.org/10.1007/978-1-349-21223-1_7.

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5

Shaker, Khubab, and Yasir Nawab. "Wood and Agriculture Waste Fibers." In Lignocellulosic Fibers, 45–55. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-97413-8_5.

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6

Sneha, C., and Minnu Tomy. "Yield Evaluation of Oyster Mushroom on Dust Waste of Some Common Timber Species." In Wood is Good, 391–95. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3115-1_36.

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7

Alves, Joner O., Girley F. Rodrigues, Denise C. R. Espinosa, and Jorge A. S. Tenorio. "Production of Rock Wool from Ornamental Rock Wastes." In EPD Congress 2011, 1046–51. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118495285.ch116.

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8

Marutzky, Rainer. "Concept for an Ideal Wood Waste and Wood Residue Combustion System." In Advances in Thermochemical Biomass Conversion, 643–55. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1336-6_49.

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9

Stewart, Bill. "Prelims - Improved Wood Waste and Charcoal Burning Stoves." In Improved Wood Waste and Charcoal Burning Stoves, a—x. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1987. http://dx.doi.org/10.3362/9781780442488.000.

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10

Stewart, Bill. "1. Assessing the situation; Theory of stove design." In Improved Wood Waste and Charcoal Burning Stoves, 1–16. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1987. http://dx.doi.org/10.3362/9781780442488.001.

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Тези доповідей конференцій з теми "Waste wool"

1

Pavlin, Majda, Barbara Horvat, and Vilma Ducman. "Pilot Production of Façade Panels: Variability of Mix Design." In International Conference on Technologies & Business Models for Circular Economy. University of Maribor Press, 2023. http://dx.doi.org/10.18690/um.fkkt.1.2023.3.

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As part of the WOOL2LOOP project, the Slovenian National Building and Civil Engineering Institute (ZAG), in collaboration with Termit d.d. were responsible for the production of façade panels. An initial mix design was developed at ZAG, where alkali-activated façade panels were produced, primarily from stone wool waste, while production took place at Termit. The mix design was changed twice during the pilot production, before a final product with suitable durability was developed. A compressive strength of up to 60 MPa and bending strength of approximately 20 MPa was achieved. The mechanical properties, however, varied, due to the unevenly milled batches of the milled mineral wool. Milling on a larger scale is very challenging, and it is difficult to obtain consistent quality of the milled material. Once the correct curing process had been found, however, the panels produced showed good performance. Moreover, the results from leaching tests showed that the elevated concentrations of certain elements (Cr, As and Mo) did not exceed the legal limits for non-hazardous waste.
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2

Calatan, Gabriela, Carmen Dico, Calin G. R. Mircea, and Tudor Toader. "THE INTEGRATION OF VERNACULAR CONSTRUCTION MATERIALS IN THE CONCEPT OF SUSTAINABLE DEVELOPMENT." In 22nd SGEM International Multidisciplinary Scientific GeoConference 2022. STEF92 Technology, 2022. http://dx.doi.org/10.5593/sgem2022/6.1/s26.26.

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Lately, there is a growing need for humanity to get closer to nature and to a way of life so that the negative impact on it to be as small as possible. One cannot talk about durable development without taking into account the sustainability criterion which is essential in all areas of activity. Traditional constructions made of masonry elements from unburned clay or other vernacular materials, using sheep wool mattresses for thermal insulation, successfully meet the conditions imposed by this criterion. Constructions made of natural materials, ensure the responsible use of non-renewable natural resources, the possibility of reuse and recycling of materials, contribute to environmental protection and pollution reduction, are energy saving and provide an hygienic, pleasant and healthy living climate. The aim of this paper is to present the experimental results obtained regarding the mechanical properties of the elements of unburned clay masonry with the addition of vegetable fibers from waste and of bio-eco-innovative wool mattresses, of different thicknesses. Following the results obtained on the 2 types of construction materials, based on clay with the addition of vegetable fibers, and sheep wool mattresses as thermal insulation material, it can be stated that they can be used successfully in construction.
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3

Horvat, Barbara, Mark Češnovar, Katja Traven, Majda Pavlin, Katja König, and Vilma Ducman. "Influence of Homogenization of Alkali-Activated Slurry on Mechanical Strength." In International Conference on Technologies & Business Models for Circular Economy. University of Maribor Press, 2022. http://dx.doi.org/10.18690/um.fkkt.2.2022.2.

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Alkali-activated materials are promising materials for the construction industry due to the accessibility of the precursors, which are mainly secondary industrial by-products, and their cost-effective and energy-efficient production. Although these materials are not new, some of the parameters in the technological process are not yet fully understood and tested. Therefore, in this paper in the means of mechanical strength, the preparation of alkali-activated pastes by using a three-roll mill homogenization method is discussed. The influence of homogenization of alkali-activated slurry has been evaluated on different waste materials (fly ash, fly ash with metakaolin, slag mixture (electric arc furnace slag and ladle slag), glass wool, waste green ceramics), which are treated with different alkali activators (NaOH, commercial sodium silicate solution, laboratory-produced alkali activators based on waste cathode- ray tube glass) with different curing regimes (60 °C and 70 °C) and different drying methods (drying at room temperature, drying at 105 °C). The viscosity of the slurry before homogenization was higher than after homogenization, the distribution of elements was more uniform and the compressive strength higher in all homogenized alkali activated materials, regardless of other parameters.
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4

Niculescu, Mihaela-Doina, Brandusa Georgiana Dumitriu, Madalina Ignat, Simona Savin, Cosmin Andrei Alexe, and Gabriela Paun. "Protein Composites from Collagen By-Products for Safe Use in Circular Economy." In The 9th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2022. http://dx.doi.org/10.24264/icams-2022.iv.8.

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Sustainable economy means reducing the carbon footprint and minimizing the amount of waste released from productive activities. This paper presents the characterization of composites obtained from by-products of the leather industry based on collagen and keratin extracts. The protein composites have specific properties for the agricultural field and industrial applications in accordance with the current recommendations for a sustainable economy. Chemical-enzymatic hydrolysis of leather and wool by-products was performed for protein extraction. The composites were obtained by addition and crosslinking of collagen and keratin extracts with tannins from vegetable by-products. The characterization of composites was performed based on the results of analytical investigations by physico-chemical methods: volumetry, potentiometry, Texture Analysis, Dynamic Light Scattering, colorimetry, microscopy. It has been found that new collagen and keratin extracts contain small and medium components size, useful for the biostimulation of agricultural crops, but also contain large size components which give adhesive and film-forming properties, useful in industrial applications.
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5

Mao, Xiaoan, Patcharin Saechan, and Artur J. Jaworski. "Evaluation of Random Stack Materials for Use in Thermoacoustic Refrigerators." In ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2010. http://dx.doi.org/10.1115/esda2010-24763.

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Анотація:
In a thermoacoustic refrigerator, energy conversion between thermal and acoustic power is achieved by means of an oscillatory motion of a compressible fluid along a solid body referred to as “stack”. Traditionally, stacks have been most often made by arranging large number of thin plates at equal spacing to fill out the cross section of a thermoacoustic resonator. Other geometries such as circular pores, square or hexagonal pores (honeycombs) or pin-arrays can also be considered. Most common irregular geometry includes layers of woven wire mesh stacked along the resonator length. The advantages of thermoacoustic engines over other conventional energy conversion devices lie in their relatively simple hardware assembly, without the need for any dynamic sealing and lubrication. However, the fabrication of stacks, for example made out of very thin parallel plates, is usually costly and impractical, while using pre-fabricated stacks (e.g. ceramic catalytic converter substrates or honeycomb used in aerospace industry) has high materials costs, which limits the cost advantages of thermoacoustic engines. However, many of these problems could be avoided if irregular stack geometries made out of random (very often waste) materials could be used. There is a wide range of such candidate materials, including glass or steel wool, ceramic chippings, waste material from metal machining (swarf, Scourers), beds of glass or metal balls etc. However the main difficulty is the lack of experimental data characterising the performance of such stacks at the design stage. In this paper, the performance of a standing wave thermoacoustic refrigerator with a stack made of a few chosen random materials, is measured and compared to the one with a parallel plate stack. It is hoped that this work will be beneficial for developing low-cost thermoacoustic prime movers and heat pumps.
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6

Korotkaya, Anna, Valeriya Dovgal', and Tamara Storodubtseva. "MATHEMATICAL MODELING OF WOOD COMPOSITE MATERIAL IN WOODWORKING INDUSTRY." In Ecological and resource-saving technologies in science and technology. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2022. http://dx.doi.org/10.34220/erstst2021_102-106.

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Анотація:
The possibility of solving the problem of using a huge amount of wood waste in the form of sawdust, chips, lump waste, chips, wood flour, etc., is the development of new polymer sandy composite materials with fillers from the listed wastes. Industrial waste in the form of secondary polymers can also be added. These can be bottles of polyethylene terephthalate, polyethylene bags and much more. Our goal was to study the relationship of components such as sand wood waste and polymer. To do this, it was necessary to develop an appropriate program - to create a mathematical model of a new wood polymer composite.
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7

Kjærbye, V., A. Larsen, B. Hasler, M. R. Schrøder, and J. Cramer. "Welfare economic assessment of processing impregnated waste wood." In WASTE MANAGEMENT 2006. Southampton, UK: WIT Press, 2006. http://dx.doi.org/10.2495/wm060591.

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8

Tatàno, F., L. Barbadoro, S. Pretelli, L. Tombari, and F. Mangani. "Industrial wood residuals: experimental property characterization and lab-scale burning tests." In WASTE MANAGEMENT 2008. Southampton, UK: WIT Press, 2008. http://dx.doi.org/10.2495/wm080651.

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9

Townsend, Timothy, and Helena Solo-Gabriele. "Potential Concerns and Impacts of CCA-Treated Wood for the Waste-to-Energy Industry." In 11th North American Waste-to-Energy Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/nawtec11-1676.

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Анотація:
An issue that has received much attention in the U.S. in recent years, especially in Florida, is the impact of CCA-treated wood on human health and the environment (Decker et al. 2002; Gordon et al. 2002) , including risks faced as a result of discarded CCA-treated wood in the solid waste stream (Townsend et al. 2001; Townsend et al. 2003). CCA-treated wood is preserved with copper, chromium and arsenic. All of the metals have toxic impacts at high exposures; it is arsenic however, which has raised the greatest concern (it is more hazardous at lower concentrations than the other CCA constituents). CCA-treated wood often becomes mixed with other wood from construction and demolition (C&D) debris (Tolaymat et al. 2000). Mixed C&D debris wood is either landfilled along with the rest of the C&D debris stream (e.g. concrete, gypsum drywall) or it is separated and processed for a variety of recycling markets.
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Raghuyal, S., J. Steer, A. Griffiths, and A. Hopkins. "Characterisation of Chromium-Copper- Arsenic (CCA) treated wood waste from a steel-making environment." In WASTE MANAGEMENT 2012. Southampton, UK: WIT Press, 2012. http://dx.doi.org/10.2495/wm120251.

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Звіти організацій з теми "Waste wool"

1

Wiltsee, G. Urban Wood Waste Resource Assessment. Office of Scientific and Technical Information (OSTI), November 1998. http://dx.doi.org/10.2172/9549.

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2

Paar, Christopher, Stuart Turner, Grant Crowell, and Jennifer Ryan. Wood Waste Processing in Iowa. University of Iowa, May 1996. http://dx.doi.org/10.17077/s7dd-4wjm.

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3

Belue, A. Treated Wood Waste Identification and Characterization. Office of Scientific and Technical Information (OSTI), January 2012. http://dx.doi.org/10.2172/1093905.

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4

English, Brent, Craig M. Clemons, Nicole Stark, and James P. Schneider. Waste-wood-derived fillers for plastics. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 1996. http://dx.doi.org/10.2737/fpl-gtr-91.

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5

Solid Waste Association of North America. Successful approaches to recycling urban wood waste. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 2002. http://dx.doi.org/10.2737/fpl-gtr-133.

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6

Бєлик, Юлія Вільєвна, Василь Миколайович Савосько, and Юрій Вікторович Лихолат. Taxonomic Composition and Synanthropic Characteristic of Woody Plant Community on Petrovsky Waste Rock Dumps (Kryvorizhzhya). КДПУ, 2019. http://dx.doi.org/10.31812/123456789/3640.

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Анотація:
The study of taxonomic composition and ecological characteristics of wood species on devastated lands as a theoretical basis for the phytomelioration of environment remains relevant nowadays. It was discovered 32 species, 25 genera and 15 families in the course of the analysis of woody plant community from devastated lands of Petrovsky waste rock dumps. Among them, allochthonous species (59.38%) have an advantage over autochthonous (40.63%) according to the quantitative indicators. It was established, hemiapophytes predominate among apophytesspecies andneophytes predominate among anthropophytesaccording to the time of entry, according to the method of invasion ergasiophytes, according to the degree of adaptation ergasiophytes and agriophytes. The results of our analysis indicate that the investigated woody plant communitycorresponds to the conditions of localization.
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7

Author, Not Given. An assessment of management practices of wood and wood-related wastes in the urban environment. Office of Scientific and Technical Information (OSTI), February 1996. http://dx.doi.org/10.2172/206871.

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8

Falk, Bob. North American Wood Waste Forum: Summary of Group Feedback, 2-3, 2012. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 2012. http://dx.doi.org/10.2737/fpl-gtr-216.

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9

Gebhart, Dick, Ryan Busby, Annette Stumpf, and Susan Bevelheimer. Demonstration of Combined Food and Landscape Waste Composting at Fort Leonard Wood, MO: Fort Leonard Wood Installation Strategic Sustainable Plan. Fort Belvoir, VA: Defense Technical Information Center, January 2016. http://dx.doi.org/10.21236/ad1001865.

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10

Flores-Dávila, Jorge, Thomas Napier, Annette Stumpf, and Susan Bevelheimer. Waste minimization plan for concrete masonry maintenance facilities : Fort Leonard Wood installation strategic sustainability plan. Construction Engineering Research Laboratory (U.S.), June 2017. http://dx.doi.org/10.21079/11681/22667.

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