Relevant bibliographies by topics / Stabilization/solidification technique

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Stabilization/solidification technique'

Author: Grafiati
Published: 4 June 2021
Last updated: 3 February 2022

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Journal articles on the topic "Stabilization/solidification technique"

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Rani M., Yamuna. "Treatment of Hazardous Solid Waste Using Solidification and Stabilization Technique." American Journal of Environmental Protection 6, no. 4 (2017): 94. http://dx.doi.org/10.11648/j.ajep.20170604.13.

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Long, Richard P., and Xinguo Zhang. "Treating Lead-Contaminated Soil by Stabilization and Solidification." Transportation Research Record: Journal of the Transportation Research Board 1615, no. 1 (January 1998): 72–78. http://dx.doi.org/10.3141/1615-10.

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Soil in and near transportation facilities often is contaminated with lead because lead once was used as a base for gasoline and paint. Dealing with contaminated soil is difficult because the toxic material must be treated to protect the public from direct exposure. Stabilization and solidification is a promising technique for protecting the public from toxic materials in soils by decreasing the possibility of human exposure and decreasing the mobility of the contaminant. The results of a laboratory investigation of the feasibility of stabilization and solidification of contaminated soil using cement in combination with various additives are presented. Mobility of lead and other contaminants was measured by dynamic diffusion and compared with the standard test results of the toxic characteristic leaching procedure. Several additives were tried. Apatite and sodium silicate were found to be the most effective in reducing the mobility of the lead. The compacted dry density of the solidified soil had a great effect on the leaching characteristics. The leaching of lead from deteriorated solidified soil was simulated by crushing a sample containing apatite and conducting a dynamic diffusion test on the crushed sample. The diffusion coefficient was used to compare the effect of additives and other treatments.
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Slijepcevic, Natasa, Dragana Tomasevic-Pilipovic, Aleksandar Dosic, Djurdja Kerkez, Dunja Radjenovic, Miladin Gligoric, and Stefan Djordjievski. "Efficiency of application the solidification/stabilization technique on mine tailings from the Bor." Zastita materijala 58, no. 3 (2017): 317–22. http://dx.doi.org/10.5937/zasmat1703317s.

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Chen, Kangxin, and Houfa Shen. "Modeling of macrosegregation benchmarks using a stabilized finite element algorithm based on a semi-implicit pressure correction scheme." International Journal of Numerical Methods for Heat & Fluid Flow 30, no. 2 (August 23, 2019): 918–33. http://dx.doi.org/10.1108/hff-10-2018-0544.

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Purpose The purpose of this paper is to simulate two macrosegregation benchmarks with a newly developed stabilized finite element algorithm based on a semi-implicit pressure correction scheme. Design/methodology/approach A streamline-upwind/Petrov–Galerkin (SUPG) stabilized finite element algorithm is developed for the coupled conservation equations of mass, momentum, energy and species. A semi-implicit pressure correction method combined with SUPG stabilization technique is proposed to solve the convection flow during solidification. An analytically derived enthalpy method is adopted to solve the energy conservation equation. The nonlinearities of the energy and species equations are tackled by Newton–Raphson method. Two macrosegregation benchmarks considering the solidification of an Al-4.5 per cent Cu alloy and a Sn-10 per cent Pb alloy are simulated. Findings A very good agreement is achieved by comparison with the classical finite volume method and a novel meshless method for the Al-4.5 per cent Cu alloy solidification benchmark. Moreover, a unique reference numerical solution has been obtained. Besides, it is demonstrated that the stabilized finite element algorithm can capture the flow instability and channel segregation during solidification of the Sn-10 per cent Pb alloy. Originality/value A semi-implicit pressure correction method combined with SUPG stabilization technique is adopted to develop robust stabilized finite element algorithm for the macrosegregation model. A new enthalpy formulation for heat transfer problems with phase change is derived analytically.
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Rađenović, Dunja, Đurđa Kerkez, Dragana Tomašević Pilipović, Miloš Dubovina, Nenad Grba, Dejan Krčmar, and Božo Dalmacija. "Long-term application of stabilization/solidification technique on highly contaminated sediments with environment risk assessment." Science of The Total Environment 684 (September 2019): 186–95. http://dx.doi.org/10.1016/j.scitotenv.2019.05.351.

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Gonçalves, Sayeny de Avila, Rafaela Cristina Sanfelice, and Kassia Graciele dos Santos. "Multi-response optimization of the stabilization/solidification process of industrial hazardous waste." Research, Society and Development 9, no. 4 (March 21, 2020): e144942997. http://dx.doi.org/10.33448/rsd-v9i4.2997.

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Solidification/Stabilization (S/S) is an important technique used in waste treatment, due its low cost and easily processing. The aim of this study was to optimize and standardize the S/S process in a Brazilian company. The packing of the dangerous residue was done using a mixture of different solidifying agents, such as: clayey soil; superabsorbent polymer (SAP)/cellulose pulp (fluff) and sanding powder. It was evaluated the effect of different amount of solidifying agent over the volume of packed mixture, the final moisture and the cost of the S/S process, using a Central Composite Design. The results showed a minimum cost for the S/S operation of R$ 192.89/ton of liquid waste, using about 71.69 tons of clay soil for each ton of untreated residue, allowing a highly packed residue with a moisture up to 20% (w.b.).
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Mohammed, Sarah Hashim, Khitam Abdulhussein Saeed, and Nagam Obaid Kariem. "Evaluation the Efficiency of Stabilization Technique of Organic Soil by Comparison Between the Two Stabilizers." Volume 5 - 2020, Issue 9 - September 5, no. 9 (September 25, 2020): 541–44. http://dx.doi.org/10.38124/ijisrt20sep275.

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Sewage treatment plants produce large quantities of sewage sludge as by-products, as the sludge contains elements harmful to environment. Such study investigated of utilizing different percentages of sewage (7, 14 and 21%) of soil weight. The stabilization / solidification process was used to improve the properties of the organic soil and meet its requirements. This technique was the use of traditional and nontraditional additives such as cement and styrene acrylic. The major objective of that research is to evaluate efficiency of stabilized soils through comparison of stabilizers. The organic soil was prepared and stabilizers were added in different proportions (3, 6 and 9%) for the purpose of the tests. Mechanical tests (Unconfined Compressive Strength (UCS) and Hardness) were used for the soil sample to estimate the best mixing and obtaining higher strength. Through outcome of the UCS and hardness tests, cement was most effective agent of styrene in terms of improving the properties, strength and hardness of the organic treated soil.
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Maciel, Elenize Ferreira, Feliciane Andrade Brehm, Marlova Piva Kulakowski, and Claudio de Souza Kazmierczak. "Environmental Evaluation of Stabilized and Solidified Products in Brazil: A Review." Materials Science Forum 869 (August 2016): 756–60. http://dx.doi.org/10.4028/www.scientific.net/msf.869.756.

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The diversity of industrial solid waste has grown exponentially in recent years, requiring waste management strategies focused on the reduction of associated environmental impacts. The solidification/stabilization (S/S) technique is increasingly used in the disposal or recycling of this waste. The Brazilian standard about the leaching of hazardous compounds in waste is being used to evaluate S/S products in their end disposal in landfills, with no description of any protocol to investigate performance during their life cycle, as observed when they are used as admixture to building materials. In this context, this study describes a qualitative review of leaching methods in use to assess S/S products in Brazil, in comparison with the main techniques adopted in other countries.
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Villabona-Ortiz, Ángel, Candelaria Tejada-Tovar, Ángel Gonzalez-Delgado, Adriana Herrera-Barros, and Gina Cantillo-Arroyo. "Immobilization of Lead and Nickel Ions from Polluted Yam Peels Biomass Using Cement-Based Solidification/Stabilization Technique." International Journal of Chemical Engineering 2019 (March 10, 2019): 1–8. http://dx.doi.org/10.1155/2019/5413960.

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Nowadays, biomass has been employed to prepare biosorbents for heavy metals uptake; however, further disposal of polluted material has limited its application. In this work, nickel and lead removal was performed using yam peels and the resulting polluted biomass was mixed with concrete to produce bricks. The biomass was characterized by FT-IR analysis for testing functional groups diversification before and after adsorption process. The effect of adsorbent dosage, temperature, and initial solution concentration was evaluated to select suitable values of these parameters. Adsorption results were adjusted to kinetic and isotherm models to determine adsorption mechanism. Desorption experiments were also performed to determine the appropriate desorbing agent as well as its concentration. Immobilization technique of cement-based solidification/stabilization was applied and the polluted biomass was incorporated to concrete bricks at 5 and 10%. Mechanical resistance and leaching tests were carried out to analyze the suitability of heavy metals immobilization. The suitable values for dosage, temperature, and initial solution concentration were 0.5 g/L, 40°C and 100 ppm, respectively. The kinetic model that best fitted experimental results was pseudo-second order indicating a dominant physicochemical interaction between the two phases. The highest desorption yields were found in 52.47 and 74.84% for nickel and lead ions. The concrete bricks exhibited compression resistance above 5 MPa and all the leachate reported concentrations below the environmental limit. These results suggested that nickel and lead immobilization using concrete bricks is a good alternative to meet disposal problems of contaminated biomass.
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SHIBATA, Yasunori. "Study on Solidification and Stabilization Technique by Steam Treatment of the Coal Ash from Fluidized-bed Combustion Boilers." Journal of the Japan Institute of Energy 77, no. 8 (1998): 793–804. http://dx.doi.org/10.3775/jie.77.793.

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Dissertations / Theses on the topic "Stabilization/solidification technique"

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Picquet, Isabelle. "Techniques de stabilisation physico-chimique à base de liant hydraulique appliquées aux résidus miniers sulfurés et arséniés." Vandoeuvre-les-Nancy, INPL, 1995. http://www.theses.fr/1995INPL141N.

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En alternative aux solutions les plus communes de gestion des résidus miniers sulfurés générateurs d'eaux acides (AMD), les procédés de stabilisation à base de liant hydraulique développés dans le traitement des déchets sont envisagés comme barrière contre la dissémination des éléments toxiques, voire contre la diffusion des agents oxydants. En particulier, la fixation chimique de l'arsenic est recherchée. L’expérimentation est basée sur la préparation de mortiers de stérile sulfuré et arsénié et de ciment ou de chaux. L’influence de la nature du liant utilisé et celle de la teneur en chaux sont étudiées vis à vis de la rétention de l'arsenic et de la détérioration des mortiers due à la formation de composés gonflants (ettringité). Des essais de lixiviation par extracteur de Soxhlet permettent d'évaluer l'efficacité de l'inertage sous des conditions oxydantes. L’influence de la teneur en chaux sur la fixation de l'arsenic est clairement montrée et ce quelque soit le test utilisé. L’altération accélérée des échantillons montre le départ massif de la chaux et une perte de cohésion des mortiers faiblement dosés en liant qui coïncide avec une détérioration des qualités de rétention de l'arsenic. À long terme, des phases riches en fer, en arsenic et en calcium sont identifiées comme des phases possibles de stabilisation. Les mortiers riches en ciment et en chaux assurent la meilleure rétention de l'arsenic et ce même après un an de vieillissement. Dans une dernière partie, la protection des surfaces des sulfures par des hydroxydes métalliques est envisagée pour inhiber l'oxydation
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Wu, Randall. "Cement-based stabilization/solidification of zinc-contaminated kaolin clay with graphene nanoplatelets." Thesis, 2021. http://hdl.handle.net/1828/12990.

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Heavy-metal contamination in soils has become a serious environmental problem. Among all metals, excessive amount of zinc was released to soils over the years. Zinc is not only toxic to human being, but also to plants. High concentration of zinc is extremely phytotoxic. Currently, the most popular method to remediate heavy-metal contaminated soils is stabilization/solidification (S/S) technique as it is cheaper, faster and more effective to remediate heavy metals than other remediation methods. Portland cement is the most-used binder in S/S technique. However, the production of Portland cement has released a significant amount of carbon dioxide, which strongly contributes to global warming. In addition, zinc retards the setting and hydration of Portland cement, which would require more Portland cement to remediate zinc-contaminated sites. Therefore, researchers are looking for new materials to improve the performance of Portland cement in zinc-contaminated soils. In recent years, the application of graphene-based materials in concrete had proved to be effective. Due to relative cost-effectiveness and comparable properties, multi-layer graphene, known as graphene nanoplatelets, may show a promising potential in construction. Moreover, research has reported that graphene nanoplatelets can be exfoliated from graphite and potentially scaled up for full-scale applications. At present, there is no application of graphene nanoplatelets in the S/S of contaminated soils and the roles of graphene nanoplatelets in cement-stabilized zinc-contaminated clay remained unknown. In this research, graphene nanoplatelets were dispersed in solution with a high-shear mixing apparatus. Dispersed graphene nanoplatelets solution was then applied to zinc-contaminated soil along with cement. To evaluate the efficacy of this S/S method, various influencing factors such as mixing sequence, graphene nanoplatelets content, zinc content, cement content, and curing time were studied. An optimum graphene nanoplatelets content was determined through the unconfined compressive strength (UCS) of the stabilized/solidified samples. It was found that at the optimum content, the unconfined compressive strength of cement-stabilized zinc-contaminated clay was improved by 22.3% with the addition of graphene nanoplatelets. Also, graphene nanoplatelets were effective at moderate zinc content and low cement content. Graphene nanoplatelets accelerated cement hydration effectively at early ages. Microstructural analyses indicated that more hydration products were developed in samples with graphene nanoplatelets. At current stage, it is still expensive to apply graphene nanoplatelets in S/S technique; however, it is possible to exfoliate graphite into graphene nanoplatelets in future research.
Graduate
2022-05-12
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Book chapters on the topic "Stabilization/solidification technique"

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Du, Yan-Jun, Song-Yu Liu, Zhi-Bin Liu, Lei Chen, Fan Zhang, and Fei Jin. "An Overview of Stabilization/Solidification Technique for Heavy Metals Contaminated Soils." In Advances in Environmental Geotechnics, 760–66. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-04460-1_93.

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Zhang, Yu, Cong Lu, Mengyi Xu, Lingling Pan, Nguyen Chau Lan, and Qiang Tang. "Research Progress on Stabilization/Solidification Technique for Remediation of Heavy Metals Contaminated Soil." In Advances and Applications in Geospatial Technology and Earth Resources, 315–25. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-68240-2_19.

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"Solidification and Stabilization Techniques for Waste Control." In Process Engineering for Pollution Control and Waste Minimization, 285–310. CRC Press, 1994. http://dx.doi.org/10.1201/9781482277586-20.

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Cheng, K. Y., P. Bishop, and J. Isenburg. "Cement Stabilization/Solidification Techniques: pH Profile Within Acid-Attacked Waste form." In Studies in Environmental Science, 371–72. Elsevier, 1991. http://dx.doi.org/10.1016/s0166-1116(08)70423-0.

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Conference papers on the topic "Stabilization/solidification technique"

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Durn, Goran, Nediljka Gaurina-Međimurec, Ivan Meandzˇija, Boris Veronek, and Sanja Mesic´. "Geochemical and Mineralogical Assessment of Lime Stabilized Waste From Petroleum Industry in Croatia." In ASME 2002 Engineering Technology Conference on Energy. ASMEDC, 2002. http://dx.doi.org/10.1115/etce2002/ee-29135.

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The aim of this study was geochemical and mineralogical assessment of materials from two already closed pits. Total testing and leachate testing (Equilibrium Leach Test and Sequential Leach Test) of topsoil, waste stabilized with lime and underlying rock was performed on composite samples. Analysis of underground water from underlying rock was also accomplished. Major pollutants in stabilized waste from investigated locations differ. High total values of some heavy metals in stabilized waste from one of the investigated locations can probably be attributed to high barite content (mercury, zinc and cadmium) and pipe dope (lead). Mercury, zinc and cadmium are enriched in the organic-sulfide fraction that might indicate they are tied up as sulfide impurities in barite. In distilled water lecheate of stabilized waste from this location higher concentrations of Pb, Hg and TOC were observed. In the stabilized waste from the second location high total values of TPH, PAH and BTEX were detected, while distilled water lecheate is enriched in Hg, AOX, TOC and TPH. This investigation shows that stabilization with lime is not always suitable method for treatment of wastes from petroleum industry, particularly those that are contaminated with both organic and inorganic contaminants. Proper characterization of the waste material to be processed is needed in order to select the most appropriate method of treatment. Our ongoing research study uses different pretreatment techniques and different absorbents (organophilic clay, zeolite, calcined siliceous earth, etc.) to preferentially absorb organic contaminants that can be used before stabilization/solidification.
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