Academic literature on the topic 'Civil engineering. Arsenic. Iron oxides'

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Journal articles on the topic "Civil engineering. Arsenic. Iron oxides"

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Abdallah, Elsadig A. M., and Graham A. Gagnon. "Arsenic removal from groundwater through iron oxyhydroxide coated waste productsA paper submitted to the Journal of Environmental Engineering and Science." Canadian Journal of Civil Engineering 36, no. 5 (2009): 881–88. http://dx.doi.org/10.1139/s08-059.

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The goal of this research was to remove arsenic from groundwater supplies via adsorption into media obtained from waste material generated as by-products from glass recycling programs and the seafood industry such as crushed glass and scallop shells. During the course of this research four new adsorbents were developed: ferric hydroxide coated crushed glass (FHCCG); ferric oxide coated crushed glass (FOCCG); ferric hydroxide coated scallop shells (FHCSS); and ferric oxide coated scallop shells (FOCSS). The adsorbents were characterized through evaluation of their structure, surface area, chemi
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Chowdhury, Shakhawat, Imran Rahman Chowdhury, Fayzul Kabir, Mohammad Abu Jafar Mazumder, Md Hasan Zahir, and Khalid Alhooshani. "Alginate-based biotechnology: a review on the arsenic removal technologies and future possibilities." Journal of Water Supply: Research and Technology-Aqua 68, no. 6 (2019): 369–89. http://dx.doi.org/10.2166/aqua.2019.005.

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Abstract The alginate-based adsorption technologies have emerged as potential methods for arsenic removal from drinking water. The adsorbents (iron oxide, hydroxide, nano zero valent iron (nZVI), industrial waste, minerals, magnetite, goethite, zirconium oxide, etc.) are impregnated into alginate beads to produce the media. The biocompatibility, rough surface with large area, and amorphous and high water permeable bead structure improve arsenic adsorption efficiency while the regeneration process is simpler than the conventional adsorbents. In recent years, studies have reported laboratory-sca
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Ko, Ilwon, Allen P. Davis, Ju-Yong Kim, and Kyoung-Woong Kim. "Arsenic Removal by a Colloidal Iron Oxide Coated Sand." Journal of Environmental Engineering 133, no. 9 (2007): 891–98. http://dx.doi.org/10.1061/(asce)0733-9372(2007)133:9(891).

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Rozell, Daniel. "Modeling the Removal of Arsenic by Iron Oxide Coated Sand." Journal of Environmental Engineering 136, no. 2 (2010): 246–48. http://dx.doi.org/10.1061/(asce)ee.1943-7870.0000138.

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Joshi, Arun, and Malay Chaudhuri. "Removal of Arsenic from Ground Water by Iron Oxide-Coated Sand." Journal of Environmental Engineering 122, no. 8 (1996): 769–71. http://dx.doi.org/10.1061/(asce)0733-9372(1996)122:8(769).

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Yue, Changsheng, Huili Du, Yan Li, Naiyi Yin, Ben Peng, and Yanshan Cui. "Stabilization of Soil Arsenic with Iron and Nano-Iron Materials: A Review." Journal of Nanoscience and Nanotechnology 21, no. 1 (2021): 10–21. http://dx.doi.org/10.1166/jnn.2021.18476.

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Soil arsenic (As) contamination is an important environmental problem, and chemical stabilization is one of the major techniques used to remediate soil As contamination. Iron and iron nanoparticle materials are widely used for soil As stabilization because they have one or more of the following advantages: high adsorption capacity, high reduction capacity, cost effectiveness and environmental friendliness. Therefore, this review introduces the stabilization of soil As with iron and iron nanoparticles, including zero-valent iron, iron oxides/hydroxides, some iron salts and Fe-based binary oxide
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Balcu, Ionel, Adina Segneanu, Marius Mirica, Mirela Iorga, Catalin Badea, and Iuliana Firuta Fitigau. "IRON OXIDES FROM ELECTROFILTER ASH FOR WATER TREATMENT (ARSENIC REMOVAL)." Environmental Engineering and Management Journal 8, no. 4 (2009): 895–900. http://dx.doi.org/10.30638/eemj.2009.128.

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Hao, Linlin, Mengzhu Liu, Nannan Wang, and Guiju Li. "A critical review on arsenic removal from water using iron-based adsorbents." RSC Advances 8, no. 69 (2018): 39545–60. http://dx.doi.org/10.1039/c8ra08512a.

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The recent developments on iron-based adsorbents such as iron oxyhydroxides nanoparticles, zero-valent iron, bimetallic oxides, and iron oxyhydroxide-doped composite materials are fully discussed in this review.
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Chen, Peng, Hong-Mei Zhang, Bao-Min Yao, Song-Can Chen, Guo-Xin Sun, and Yong-Guan Zhu. "Bioavailable arsenic and amorphous iron oxides provide reliable predictions for arsenic transfer in soil-wheat system." Journal of Hazardous Materials 383 (February 2020): 121160. http://dx.doi.org/10.1016/j.jhazmat.2019.121160.

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Sigdel, Abinashi, Joowan Lim, Jeongwon Park, et al. "Immobilization of hydrous iron oxides in porous alginate beads for arsenic removal from water." Environmental Science: Water Research & Technology 4, no. 8 (2018): 1114–23. http://dx.doi.org/10.1039/c8ew00084k.

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Dissertations / Theses on the topic "Civil engineering. Arsenic. Iron oxides"

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Kumar, Arun Gurian Patrick L. "Arsenic removal effectiveness of iron oxide-based fibrous adsorbents and stability of granular iron oxide media /." Philadelphia, Pa. : Drexel University, 2008. http://hdl.handle.net/1860/2929.

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Poole, Barika R. (Barika Renee) 1979. "Point-of-use water treatment for arsenic removal through iron oxide coated sand : application for the Terai region of Nepal." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/8423.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2002.<br>Includes bibliographical references (leaves 155-159).<br>Arsenic contaminated groundwater is prevalent in a number of countries around the world, most notably West Bengal, Bangladesh and now the Terai region of Nepal. Wide public awareness of the contamination was not until the 1990s, from years to several decades after tubewells were installed to extract groundwater for drinking water. Now, millions of people have arsenic poisoning which causes serious health effects such as arsenico
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Senn, David B. (David Bryan) 1970. "Coupled arsenic, iron, and nitrogen cycling in arsenic-contaminated Upper Mystic Lake." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/8750.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2001.<br>Includes bibliographical references (p. 253-265).<br>This dissertation addresses the mechanisms controlling arsenic (As) remobilization and cycling in the hypolimnion of As-contaminated Upper Mystic Lake (UML; Winchester, MA). We conducted field and laboratory studies, and applied mass balance, surface complexation, and thermodynamic modeling to explore As cycling and its links to other elemental cycles (Fe, N, 02) in UML. Nitrate appears to control iron (Fe) and As cycling in the hypo
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Fernández-Baca, Cristina Paola. "Investigation of the effect of phosphate on iron(ii) sorption to iron oxides." Thesis, University of Iowa, 2010. https://ir.uiowa.edu/etd/497.

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Iron is ubiquitous in the environment mostly as stable iron hydr(oxides) such as hematite (α-Fe2O3) and goethite (α-FeOOH). The Fe(II)-Fe(III) redox couple plays a vital role in nutrient cycling, bacteria respiration, and contaminant removal. This redox couple, however, can be affected by external influences such as anion adsorption of sulfate, oxalate, and phosphate which can influence various goethite properties including the point of zero charge. This study attempts to determine the effect of phosphate sorption to a goethite surface and its subsequent influence on Fe(II) sorption. The objec
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Kwan, Wai P. (Wai Pang) 1974. "Decomposition of hydrogen peroxide and organic compounds in the presence of iron and iron oxides." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/29585.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2003.<br>Includes bibliographical references.<br>Most advanced oxidation processes use the hydroxyl radical (OH) to treat pollutants found in wastewater and contaminated aquifers because OH reacts with numerous compounds at near diffusion-limited rates. OH can be made by reacting hydrogen peroxide (H202) with either Fe(II) (the Fenton reaction), Fe(1), or iron oxide. This dissertation investigated the factors that influence the decomposition rates of H202 and organic compounds, as well as the
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Raghav, Madhumitha. "Long-Term Stabilization of Arsenic-Bearing Solid Residuals under Landfill Conditions." Diss., The University of Arizona, 2013. http://hdl.handle.net/10150/301550.

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The maximum contaminant level (MCL) for arsenic in drinking water was reduced to 10 parts per billion in 2006 by the USEPA. As a result, approximately 10,000 tons of arsenic-bearing residuals (ABSRs) are estimated to be generated every year from water treatment processes. It has also been established that the standard Toxicity Characteristic Leaching Procedure (TCLP), underestimates arsenic leaching from ABSRs, particularly under mature, mixed solid waste landfill conditions. This makes it critical to investigate stabilization technologies that would ensure long-term stability of arsenic resid
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Brown, Angela Meagan. "Arsenic speciation in the presence of anoxic mixed valent iron systems." Thesis, University of Iowa, 2010. https://ir.uiowa.edu/etd/784.

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Iron is ubiquitous in the environment, ranking fourth in abundance in the earth's crust. Iron is responsible for many environmental mechanisms including the distribution of plant nutrients and pollutants. Iron can exist in several minerals, including iron oxides. Arsenic is a naturally occurring metalloid which has been confirmed by the EPA as a carcinogen. Recently, an arsenic epidemic has unfurled in Bangladesh, poisoning an estimated 70 million people. Arsenic contamination does not exist only in the third world, but also in the United States, including Iowa. Due to the widespread distribut
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Handler, Robert Michael. "Still oxides run deep: studying redox transformations involving Fe and Mn oxides using selective isotope techniques." Diss., University of Iowa, 2009. https://ir.uiowa.edu/etd/295.

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Reactions of aqueous Fe(II) with Fe and Mn oxides influence heavy metal mobility, transformation of trace organics, and important elemental cycles as Fe precipitates form or dissolve, and as electrons move between aqueous and solid phases. Our objective was to characterize reactions of Fe(II) with important metal oxides, using a suite of complementary tools to investigate the extent and underlying mechanisms of Fe(II)-metal oxide redox activity. Nanoscale materials (1-100 nm) may have fundamentally different surface or electronic properties than larger solids. Goethite was synthesized with pri
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Latta, Drew Eric. "A geochemical investigation of heterogeneous redox reactions between Fe(II), Fe(III), and uranium." Diss., University of Iowa, 2010. https://ir.uiowa.edu/etd/842.

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Iron (Fe) minerals and ferrous iron (Fe(II)) play an important role in the several natural elemental cycles, including the carbon cycle, nutrient cycles, and the cycling of metals. In this work we have characterized the reactivity structural Fe(II) in several Fe minerals and in natural soil with uranium. We have studied the reactivity of Fe(II) in solution with the Fe oxide goethite conditions relevant to many natural systems. Green rusts are widely recognized as an intermediate phase in the Fe cycle. Here we investigate the reactivity of green rusts containing different structural anions with
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Yean, Su Jin. "Arsenic removal using iron oxides: Application of magnetite nanoparticles and iron salts." Thesis, 2008. http://hdl.handle.net/1911/22252.

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Elevated levels of arsenic in groundwater have generated great attention worldwide because of its wide occurrences throughout the world and toxicity at low concentration. This work introduces a possible application at household levels to provide arsenic-safe water using nanoscale iron oxide (i.e., magnetite nanoparticles) and iron salts (i.e., ferric nitrate and ferric chloride) as adsorbents and coagulants, respectively. Recent publications illustrate that more than 70 million people are chronically exposed to arsenic-contaminated groundwater and suffer from skin lesions and cancers worldwide
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Books on the topic "Civil engineering. Arsenic. Iron oxides"

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ZnO bao mo zhi bei ji qi guang, dian xing neng yan jiu. Shanghai da xue chu ban she, 2010.

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Book chapters on the topic "Civil engineering. Arsenic. Iron oxides"

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Ghosh, Spandan, Soumya Kanta Ray, and Chanchal Majumder. "Removal of Arsenic V+ contaminant by Fixed Bed Column Study by Graphene Oxide Manganese Iron (GO-Mn-Fe) Nano Composite-Coated Sand." In Lecture Notes in Civil Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6887-9_25.

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Basak, Saurabh Kumar, Pankaj Kumar Roy, Nil Sadhan Mondal, Arunabha Majumder, and Asis Mazumdar. "A Critical Review of Various Arsenic and Iron Removal Plants Installed in North 24 Parganas District of West Bengal, India." In Lecture Notes in Civil Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6412-7_14.

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Biswas, Satabdi, and Anupam Debsarkar. "Socio-economic Assessment of Arsenic and Iron Contamination of Groundwater and Feasibility of Rainwater Harvesting (RWH): A Case Study of Amdanga Block, North 24 Parganas, West Bengal, India." In Lecture Notes in Civil Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6412-7_7.

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