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Dissertations / Theses on the topic 'Heavy metal Adsorption'

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Published: 4 June 2021
Last updated: 25 July 2025

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1

Ngule, Chrispus M. Jr. "In Vitro Adsorption of Heavy Metals Using Metal-Organic Frameworks." Youngstown State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1597664070125999.

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2

Zvinowanda, CM, JO Okonkwo, PN Shabalala, and NM Agyei. "A novel adsorbent for heavy metal remediation in aqueous environments." International Journal of Environmental Science and Technology, 2009. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001474.

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Abstract The objective of this study was to investigate the possibility of using maize tassel as an alternative adsorbent for the removal of chromium (VI) and cadmium (II) ions from aqueous solutions. The effect of pH, solution temperature, contact time, initial metal ion concentration and adsorbent dose on the adsorption of chromium (VI) and cadmium (II) by tassel was investigated using batch methods. Adsorption for both chromium (VI) and cadmium (II) was found to be highly pH dependent compared to the other parameters investigated. Obtained results gave an adsorption capacity of 79.1 % for c
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3

PULS, ROBERT WILLIAM. "ADSORPTION OF HEAVY METALS ON SOIL CLAYS (KAOLINITE, CADMIUM, MONTMORILLONITE, ZINC)." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/183889.

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Metal cation adsorption is the predominant chemical mechanism governing the attenuation of toxic metal movement in soils. Clay minerals are the primary adsorbent surfaces in soils due to their ubiquitous nature and large reactive surface area. This study examined the relative affinity of the metals cadmium, nickel and zinc for the clay minerals kaolinite and montmorillonite. The influence which different mineral adsorbents and different complexing ligands in solution have on the adsorption of metal ions was assessed using the Hard-Soft Acid-Base Principle as a theoretical framework for predict
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4

Jia, Yong Feng. "Adsorption of heavy metal ion species from aqueous solution in activated carbon." Thesis, University of Newcastle Upon Tyne, 2000. http://hdl.handle.net/10443/519.

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Activated carbons are used widely for the adsorption of environmentally unfriendly species from both liquid and gas phases, the separation of gases and adsorption of species from aqueous solution. Examples of the processes are the adsorption of Au(CN)2 and Ag(CN)2 from aqueous solution for the recovery of precious metals, the treatment of waste water containing organic chemicals and toxic metal species and the preparation of metal catalysts supported on carbon. This investigation has involved the study of the influence of porous structure and surface functional groups on the adsorption of both
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5

Keleşoğlu, Serkan Polat Hürriyet. "Comparative adsorption studies of heavy metal ions on chitin and chitosan biopolymers/." [s.l.]: [s.n.], 2007. http://library.iyte.edu.tr/tezlerengelli/master/kimya/T000622.pdf.

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6

Gunawardana, Chandima Thanuja Kumari. "Influence of physical and chemical properties of solids on heavy metal adsorption." Thesis, Queensland University of Technology, 2011. https://eprints.qut.edu.au/47312/1/Chandima_Gunawardana_Thesis.pdf.

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Partition of heavy metals between particulate and dissolve fraction of stormwater primarily depends on the adsorption characteristics of solids particles. Moreover, the bioavailability of heavy metals is also influenced by the adsorption behaviour of solids. However, due to the lack of fundamental knowledge in relation to the heavy metals adsorption processes of road deposited solids, the effectiveness of stormwater management strategies can be limited. The research study focused on the investigation of the physical and chemical parameters of solids on urban road surfaces and, more specificall
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7

Alam, Tanvir E. "Metal Oxide Graphene Nanocomposites for Organic and Heavy Metal Remediation." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/3945.

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This thesis consists of two research problems in the water decontamination area. In the first work, the main focus is to understand the structure and photocatalytic activity of titanium dioxide with graphene (G-TiO2) which is synthesized by using sol-gel method. The photocatalytic activity of TiO2 is limited by the short electron hole pair recombination time. Graphene, with high specific surface area and unique electronic properties, can be used as a good support for TiO2 to enhance the photocatalytic activity. The obtained G-TiO2 photocatalysts has been characterized by X-Ray Diffraction (XRD
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8

Kothalawala, Kothalawalage Nuwan. "Nanoporous high surface area silicas with chelating groups for heavy metal ion adsorption from aqueous solution /." View online, 2010. http://repository.eiu.edu/theses/docs/32211131524422.pdf.

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9

Karimanal, Kamalakannan Venkatasan. "Adsorption of saturated heavy metal vapors from combustion sources by condensation onto suspended sorbents /." Digital version accessible at:, 1998. http://wwwlib.umi.com/cr/utexas/main.

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10

Tayab, Muhammad Rehan. "Environmental impact of heavy metal pollution in natural aquatic systems." Thesis, Brunel University, 1991. http://bura.brunel.ac.uk/handle/2438/5503.

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The distribution of heavy metals between soil and soil solutions is a key issue in evaluating the environmental impact of long term applications of heavy metals to land. Contamination of soils by heavy metals has been reported by many workers. Metal adsorption is affected by many factors, including soil pH, clay mineralogy, abundance of oxides and organic matter, soil composition and solution ionic strength. The pH is one of the many factors affecting mobility of heavy metals in soils and it is likely to be the most easily managed and the most significant. To provide the appropriate level of p
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11

Weber, L. A. (Lawrence Adna) 1907. "The permeability and adsorption capability of kaolinite and bentonite clays under heavy metal leaching /." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=59904.

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Two soils, a kaolinite clay and a mixture of sand and sodium bentonite were used in this study to determine the effects of a heavy metal permeant on the materials' hydraulic conductivity and adsorption capability. A contaminant solution of lead nitrate was leached through the specimens. The permeability tests were repeated over a range of hydraulic gradients for several different concentrations of lead.<br>The results from this study indicated that the hydraulic conductivity of the kaolinite clay was unaffected by permeation with the lead solution. The sand/bentonite mixture showed an increase
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12

Thomson, Bruce Winchester. "Heavy metal uptake on manganese oxide : coated filter sand obtained from the forehill water treatment plant, Peterhead, Aberdeenshire." Thesis, Robert Gordon University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289088.

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13

Efome, Johnson Effoe. "Development and Characterization of Novel Nanofibrous Metal–Organic Framework Adsorption Membranes for Water Treatment." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38245.

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Membrane technology has become a predominant process in providing one of the key components of life (water), either through water and wastewater treatment for water quality purposes or desalination as seen in Ultra-filtration, Nano-filtration, Reverse osmosis, Membrane distillation, Pervaporation, among others. With the ever-increasing demand for portable water due to population increase, constant research has focused on the improvements of the performances of the different water treatment systems including enhancing the performance of the membrane. Among all the different membrane performance
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14

Dietrich, Theo Henry. "The removal of heavy metals from dilute aqueous streams by the use of ion exchange resins." Thesis, Cape Technikon, 1998. http://hdl.handle.net/20.500.11838/887.

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Thesis (MTech (Chemical Engineering)--Cape Technikon, Cape Town, 1998<br>Ion exchange resins are widely used to remove or concentrate heavy metals from aqueous solutions or slurries.This thesis attempts to properly evaluate the interaction between ion exchange resins and heavy metals at trace metal concentrations.The durability of the resins and their effectiveness in real slurries were also investigated. In this study, a chelating resin, as well as a cation, and anion exchange resin was contacted with aqueous solutions of heavy metals in both free and complexed form. Zinc, nickel and c
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15

Addy, Mary Akuyea. "Modified Organoclay Containing Chelating Ligand for Adsorption of Heavy Metals in Solution." Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/etd/1372.

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Presence of a chelating ligand in the clay structure significantly improves its ability to immobilize heavy metals from contaminated sludge or wastewater. Two-step modification procedure comprising sequential pillaring and grafting of chelating agent to the modified clay is involved. Montmorillonite and kaolin were chosen as typical examples of expandable and non-expandable clays, correspondingly. Modifications with silica and ferric oxide were targeted on development of mesoporous structure. Laboratory tests of the organoclay efficiency for purification of wastewater were conducted with the m
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16

Terdkiatburana, Thanet. "Simultaneous removal process for humic acids and metal ions by adsorption." Thesis, Curtin University, 2007. http://hdl.handle.net/20.500.11937/1714.

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Humic substances are macromolecules that naturally occur in all environments in which vegetation matter are present. In general, humic acid is part of humic substances which form the major fraction of the dissolved organic matters in surface water and represents 90% of dissolved organic carbon. Humic acid plays a fundamental role in many ecosystems since it interacts with toxic metal ions present in the system, resulting in a decrease in the bio-availability of such ions. Moreover, the availability of humic acid in water can react with other chemical compounds, such as chlorine to form trihalo
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Terdkiatburana, Thanet. "Simultaneous removal process for humic acids and metal ions by adsorption." Curtin University of Technology, Dept. of Chemical Engineering, 2007. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=18564.

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Humic substances are macromolecules that naturally occur in all environments in which vegetation matter are present. In general, humic acid is part of humic substances which form the major fraction of the dissolved organic matters in surface water and represents 90% of dissolved organic carbon. Humic acid plays a fundamental role in many ecosystems since it interacts with toxic metal ions present in the system, resulting in a decrease in the bio-availability of such ions. Moreover, the availability of humic acid in water can react with other chemical compounds, such as chlorine to form trihalo
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18

Askari, Hallo Mustafa. "Studies of leaching, recovery and recycling of heavy metals." Thesis, Brunel University, 2008. http://bura.brunel.ac.uk/handle/2438/5087.

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The leachability of cadmium, cobalt, copper, lead, nickel and zinc metals and their oxides, sulfides and carbonates by water, 0.5 mol dm-3 CH3COOH, 0.1 mol dm -3 HCl/NaCI (1: 1 mixture) and 2 mol dm -3 HNO3 is reported. The concentrations of the leached heavy metals are compared with the trigger levels set by World Health Organisation (WHO). Three leaching solutions (nitric, sulfuric and hydrochloric acids) were used to extract copper, zinc, cobalt, nickel, iron and lead from spent catalysts prior to the application of separation technologies. Leaching experiments were conducted using both tra
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19

Mahdi, Zainab A. "Single and Multicomponent Heavy Metal Ion Adsorption from Aqueous System Using Biochar Derived from Date Seed Biomass." Thesis, Griffith University, 2019. http://hdl.handle.net/10072/387300.

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Water contamination by heavy metal ions is a world-wide issue. Adsorption is an effective treatment method for heavy metal removal from contaminated aqueous solutions. Traditional adsorbents such as activated carbons are expensive and may prove un-economical. Therefore, it is important to develop effective low-cost adsorbents. The aims of this study are to prepare an effective low-cost adsorbent of biochar prepared from date seed biomass and to investigate the adsorption performance of the derived biochar for heavy metal removal from aqueous solutions. Single and multicomponent systems of lead
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20

Huang, Jing. "Functional Polymers Containing Semi-Rigid Alternating Sequences." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/89884.

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Alternating copolymers represent a special class of copolymers in which the two comonomers copolymerize in a regular alternating sequence along the polymer chain. Of particular interest in our group are the stilbene-maleic anhydride/maleimide alternating copolymers. These copolymers possess sterically congested backbones and precisely placed functional groups arising from the strictly alternating copolymerization. The research in this dissertation is focused on the synthesis, characterization, and potential application of functionalized copolymers that contain semi-rigid alternating copolymer
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21

Turemen, L. M. "Investigation of the adsorption of reactive dyes and heavy metal ions from synthetic textile effluent by eggshell membrane." Thesis, Queen's University Belfast, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368526.

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22

Ogunleye, Adetoro O. "Bacterial poly-gamma-glutamic acid (γ-PGA) : a promising biosorbent of heavy metals". Thesis, University of Wolverhampton, 2015. http://hdl.handle.net/2436/579925.

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Poly-γ-glutamic acid (γ-PGA) is a biopolymer made up of repeating units of L-glutamic acid, D-glutamic acid or both. γ-PGA is water soluble, non-toxic and biodegradable, and can be used safely in a variety of applications that are increasing rapidly. This study investigated the production of HMW γ-PGA by five Bacillus species (B. licheniformis 1525, B. licheniformis NCTC 6816, B. licheniformis ATCC 9945a, B. licheniformis ATCC 9945a and B. subtilis (natto) ATCC 15245) in GS, C and E media for the removal of heavy metals in wastewaters. The highest γ-PGA yields of 11.69 g/l and 11.59 g/l were p
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23

Santana, Harrson Silva 1984. "Bioadsorção de íons de Cd2+, Cu2+, Pb2+ Ni2+ e Zn2+ pela macrófita aquática Limnobium spongia." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266699.

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Orientadores: Meuris Gurgel Carlos da Silva, Sirlei Jaiana Kleinübing<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Química<br>Made available in DSpace on 2018-08-21T03:51:16Z (GMT). No. of bitstreams: 1 Santana_HarrsonSilva_M.pdf: 3086288 bytes, checksum: df57d56b5e16a94632301ad2849fb91b (MD5) Previous issue date: 2012<br>Resumo: Este trabalho teve como objetivo avaliar a bioadsorção dos íons Cd2+, Cu2+, Pb2+, Ni2+ e Zn2+ pela macrófita aquática Limnobium spongia em sistema estático. Diagramas de especiação em função do pH, foram simulados usando o s
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24

Sabolč, Pap. "Novi adsorpcioni medijumi za separaciju neorganskih polutanataotpadnih voda bazirani na termohemijskoj konverziji biomase." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2017. https://www.cris.uns.ac.rs/record.jsf?recordId=104791&source=NDLTD&language=en.

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25

BAKRY, AYYOB MOHAMMED A. "Applications of Chemically Modified Nitrogen Doped Carbon, Zirconium Phosphate, Metal Organic Frameworks, and Functionalized Graphene Oxide Nanostructured Adsorbents in Water Treatment." VCU Scholars Compass, 2019. https://scholarscompass.vcu.edu/etd/6105.

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Water contaminations by many pollutants, especially heavy metals such as Pb(II), Hg(II), Cu(II), Cd(II), and Cr(VI) pose many public health and environmental concerns as reported in the list of hazardous substances compiled by the US Environmental Protection Agency due to their high toxicity, refractory degradation, and ease of entering food chain. Adsorption by chelating resins is proven to be the most effective method for the extraction of metal ions from polluted and wastewater. However, traditional absorbents such as activated carbon, activated alumina, clay, zeolite, etc., show limited ad
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26

Deng, Hong. "Metal (Pb, Zn, Cu, Cd, Fe) uptake, tolerance and radial oxygen loss in typical wetland plants." HKBU Institutional Repository, 2005. http://repository.hkbu.edu.hk/etd_ra/629.

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27

Srivastava, Suhas. "Zero Waste Utilization of Spent Coffee Grounds (SCGs) and the Feasibility Study of Heavy Metal Removal from the Aqueous Phase with SCG Biochar." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1613750739723879.

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28

Buchanan, Catherine Lynn. "Method to evaluate plants and soils to optimize conditions for phytoremediation of copper." University of Toledo / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1271788559.

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29

Aleksandra, Šućurović. "Kinetika i mehanizam uklanjanja odabranih metala iz vode adsorpcijom na aminofunkcionalizovanom ugljeničnom nanomaterijalu." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2017. https://www.cris.uns.ac.rs/record.jsf?recordId=104809&source=NDLTD&language=en.

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Predmet istraživanja ove doktorske disertacije bio je ispitivanje adsorpcionog pona&scaron;anja As(III) i odabranih metala (Cu(II), Cd(II), Pb(II), Cr(VI)) na amino- funkcionalizovanim vi&scaron;eslojnim ugljeničnim nanocevima, MWCNT-NH<sub>2 </sub>, na četiri odabrane pH vrednosti (3; 4,5; 6 i 11) i pri različitim sastavima vodenog rastvora (prisustvo hlorida, nitrata, sulfata i fosfata), a u cilju ispitivanja mogućnosti primene MWCNT-NH<sub>2</sub> za uklanjanje arsena i jona metala iz vodenih rastvora u oblasti relativno niskih koncentracija (0,01-3 mg L <sup>-1</sup> ). Fokus ove doktorske
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High, Kim. "Metal-specific high-performance liquid chromatography detection approaches for the characterization of metallothionein-like proteins from freshwater mussels." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0012/NQ29958.pdf.

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31

Albarelli, Juliana Queiroz. "Produção e caracterização de quitosana imobilizada em substratos visando adsorção de ions metalicos." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/267118.

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Orientador: Marisa Masumi Beppu<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica<br>Made available in DSpace on 2018-08-15T00:01:01Z (GMT). No. of bitstreams: 1 Albarelli_JulianaQueiroz_M.pdf: 12079656 bytes, checksum: 4883a6fcc74937bc5e4be6b917ed0747 (MD5) Previous issue date: 2009<br>Resumo: A quitosana é um polímero natural muito estudado devido à sua boa capacidade adsorvente. A aplicação deste biopolímero para remoção de metais pesados tem sido estudada desde o início dos anos 1970 sendo que o número de trabalhos sobre este tema cresceu rapi
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wickramaratne, nilantha P. "Phenolic Resin-Based Porous Carbons for Adsorption and Energy Storage Applications." Kent State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=kent1416224723.

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Akgun, Aydin Mert. "Sorption Of Cadmium And Lead On Activated Carbons Produced From Resins And Agricultural Wastes." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606713/index.pdf.

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In this work, adsorption of cadmium and lead from waste solutions by activated carbon was investigated. The activated carbons were produced from ion exchange resins and agricultural wastes in previous thesis studies under different conditions. BET surface areas of the activated carbons were given in previous studies. They were further characterized in this study. Slurry pH was measured by change in pH of water in which activated carbon was added. Methylene blue numbers were determined by adsorption of methylene blue onto activated carbons. Isoelectric points were determined by measuring zeta
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Almeida, Cecília Calhau. "Adsorção de arsênio: seleção de classes de solos mineiros indicadas para utilização como barreira geoquímica na imobilização deste elemento." Universidade Federal de Viçosa, 2009. http://locus.ufv.br/handle/123456789/5457.

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Made available in DSpace on 2015-03-26T13:53:17Z (GMT). No. of bitstreams: 1 texto completo.pdf: 1905935 bytes, checksum: e6011d0c4ea3b4f410297b7435cc346c (MD5) Previous issue date: 2009-07-27<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Water is considered a natural resource of strategic importance for the man in the future. It is recognized that maintaining the quality of natural resources and water supply, safely, for the development of human activities is the great challenge facing humanity in the coming years. One of the problems that add to water scarcity in some
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Amari, Samar. "Innovative natural zeolite-based geopolymers for water treatment." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/209312/1/Samar_Amari_Thesis.pdf.

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Geopolymers are inorganic materials with three-dimensional networks and have attracted much attention in several water treatment practices. This research investigates the behaviour of zeolite based geopolymers and to have a better understanding of the properties of the geopolymers, the effect of zeolite particle size, curing temperature, solid-to-activator solutions ratio, the alkaline solution concentration and curing time on the geopolymer amorphous content and mechanical strength. Synthesized geopolymer materials were used in fixed bed column trials for lead and ammonium ions removal. Overa
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Taillon, Kate. "Modeling surface complexation relationships in forest and agricultural soil." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=82435.

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The adsorption behaviour of trace metals in soil may provide us with a way to more accurately predict and assess the toxicity of metals in the environment. This thesis reports efforts to apply surface complexation modeling to agricultural and forest soil and to relate model parameters to common soil properties. This study considered Ca, Cd, Cu, Pb and Zn but the methods here could be applied to other metals. In Chapter 2, the surface charge and adsorption behaviour of a set of Ap horizons was characterised using back-titration and batch adsorption techniques. With the objective of simpl
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Liou, Ming-Ren, and 劉明仁. "Adsorption of heavy metal by biopolymer." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/51606743294345081210.

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Lai, Yi-ling, and 賴怡伶. "Adsorption of Heavy Metal by Biosorbents Containing Cellulose." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/t6xt2k.

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碩士<br>國立中央大學<br>環境工程研究所<br>96<br>Abstract Traditionally, there are a lot of chemical and physical methods to remove heavy metal ions from industrial sewage. Due to the variety of industrial effluent, it is very difficult to get good removal efficiency with non-expensive. Presently, many studies devote to develop low cost and reusable biosorbent to get rid of harmful substance in the solution. Fruit peel principally consists of cellulose, hemi-cellulose, pectin substances and other low moleculear weight compounds. As the active binding sites for metals are supposed to be functional groups of hy
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Lin, You-Syuan, and 林祐璿. "Influence of Heavy Metal Adsorption by Sawdust Compost Carbonized Materials." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/k7743j.

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碩士<br>明志科技大學<br>環境與安全衛生工程系環境工程碩士班<br>103<br>This study designed the sawdust stratified composting method to promote the leaven buildup by microbes in the stratified structure, there by transforming wood fiber into higher mineral-based material and investigating and manufacturing better conditions for biogenic modified biochar. The manufacturing process was matched with the low temperature activation processing of hydrogen. After the ashing furnace’s thermal cracking output carbonized materials, the differences of composition and adsorption capacity were analyzed, and improvements made. The out
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Tsai, Min-Jie, and 蔡旻杰. "Enhancement of Heavy Metal Adsorption with Chemically Modified Bamboo Fiber." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/338tsp.

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碩士<br>國立臺北科技大學<br>環境工程與管理研究所<br>101<br>Bamboo is a biological material which has been widely utilized in green product design and green construction material preparation in recent years. Bamboo is a short-term growth plant, and also an easily accessible biological material with considerably strong strength, which makes bamboo suitable for developing construction materials possessing excellent performance. Physical defibrating for obtaining bamboo fiber is considered environmentally friendly compared to chemical defibrating. The Physical defibrating is adopted with mechanical defibrating throug
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Chou, Ching-Wei, and 周經偉. "Adsorption of Heavy Metal Ions on Chitosan/Silica Nanocomposite Membranes." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/mvaabg.

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碩士<br>國立宜蘭大學<br>化學工程與材料工程學系碩士班<br>102<br>The main purpose of this study is to discuss adsorption of heavy metal ions on chitosan/silica nanocomposite membranes. The 200 nm silica particles were prepared by sol-gel method of tetraethyl orthosilicate (TEOS) through the hydrolysis and condensation reaction. Silica was first modified using silane treated polystyrene-sulfonic acid-g-maleic acid (PSSA_MA) with two different coupling agents including 3-aminopropyl triethoxysilane (APTES) and 3-glycidoxypropyl trimethoxysilane (GPTMS). Modified silica solution was added to chitosan aqueous solution, a
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LeeYaChun and 李雅珺. "The Study of Heavy Metal(Cr、Cu) Adsorption by Compost." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/62044321314039001858.

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碩士<br>東海大學<br>環境科學系<br>92<br>Abstract This research studied the adsorption of heavy metals (Cr(VI), Cr(III), and Cu(II)) by the kitchen compost. The feasibility of metal condensation and lower dissolution value after thermal destruction of compost which contained heavy metals at different temperatures (300, 500, 700 ,900℃, heated 2 hours) was assessed. The analyzing technologies included: (i) using scanning electron microscope / energy distribution spectrometer (SEM/EDS) to observe the change of surface form after the process of adsorption and heating destruction; (ii) using the 1
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Chung, Jui-Yin, and 鍾瑞嬰. "Adsorption Equilibria of Phosphate and Heavy Metal Ions onto Goethite." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/69908323048528198976.

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碩士<br>元智大學<br>化學工程學系<br>91<br>Goethite [a-FeO·OH], a kind of hydrated iron(III) oxide, was often encountered on the tropical and subtropical areas, and was the most stable (hydro-) oxidation state in soil. This study investigated the adsorption equilibria of single heavy metal－copper(II), zinc(II), and phosphate, as well as the competitive adsorption equilibria of binary copper(II) zinc(II) as well as binary phosphate and copper(II) onto synthesized goethite. All experiments were carried out at different temperatures (15~35℃), initial adsorbate concentrations, and pH values. The ionic strength
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Yu, Cheng-wei, and 游鎮蔚. "Adsorption of Heavy Metal Ions by Chemically Modified Barley Residual." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/66639835869203732545.

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碩士<br>嘉南藥理科技大學<br>環境工程與科學系暨研究所<br>98<br>Barley residual modified with chemical methods into adsorbent, which was used to increase the adsorption capacity of heavy metals than bare barley residual. The solid and liquid waste from food processing plant could be solved in the same time. Waste reduction and reuse could be promoted and the sustainable utilization of overall environment. Four chemical modification methods were used to prepare 6 modified adsorbents. The adsorption capacity of heavy metal ions (Cu2+, Pb2+, and Zn2+) was characterized by pH, contact time, contact temperature and heavy
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Wang, Yu-Ting, and 汪玉婷. "Fine Structure Analyses of Recombinant Escherichia coli with Heavy Metal Adsorption." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/80065310609203678975.

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碩士<br>元智大學<br>化學工程學系<br>92<br>Gram-positive (Bacillus cereus RC607) and Gram-negative (Pseudomonas sp. K-62) merP genes encoding metal-binding proteins cloned and over-expressed in Escherichia coli BL21 hosts were studied in the present work. The MerP protein possessing a highly conserved with two cysteine residues (Cys-X-X-Cys) for heavy bonding was over-expressed via IPTG induction and the resulting recombinant strains were used to adsorb heavy metals in aqueous solutions of Pb2+, Cd2+, Hg2+, Ni2+, Zn2+, and Cu2+. Experimentally, the adsorption capacities of these metals for the merP or merP
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Chang, Yung-T'ai, and 張永泰. "Activated Carbon Adsorption of Multicomponent Containing Heavy Metal Ions and Organics." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/62322544363757358614.

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碩士<br>淡江大學<br>水資源及環境工程所<br>83<br>The characters of activated carbon adsorption of heavy metals (Cu2+,Cd2+) in a multicomponent system were studies is this experiment. The adsorption was affected by addition different conccentration, reactivity organics in pH=2. 5. The findings in this experiment can be used for extimate the better operation condititons in order to increasing the efficacy of water and wastewater treatment.　 　 This paper contains the isotherms experi
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Chen, De-Hong, and 陳德鴻. "Study the Adsorption Characteristics of Heavy Metal on Modified Coffee Residues." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/82932823719885908480.

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碩士<br>桃園創新技術學院<br>材料應用科技研究所<br>101<br>With the process of the times, we have been paying much attention to environmental pollution. Assay the global pollutions, heavy metal type has the higher percentage than others. It can be disposed by chemical-precipitation, ion-exchange, membrane-cleaning and activated carbon-adsorption, however, activated carbon be applied wildly to wastewater treatment because of two characters that well-structured cells and high adsorption, growing familiar adsorbent. Due to the high price of activated carbon, there are many experiments aim for research and development
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Chung, Chun-Hung, and 鍾濬鴻. "Enhancement of Heavy Metal Ions Adsorption with Chemically Modified Lignocellulosic Substrate." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/13132252015126749913.

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碩士<br>嘉南藥理科技大學<br>環境工程與科學系碩士班<br>96<br>The use of five chemical modification processes, including phosphorylation, sulfonation, sodium thiosulfate, citric acid,and formaldehyde modification, to modify the lignocellulosic substrate of Leucaena lucocephala into adsorbent which could actually enhance the removal efficiency of metal ions (Cd2+ and Pb2+) from aqueous solution. Parameters that may affect the metal ions adsorption efficiency including solution pH, contact time, kinds of metal ions, initial metal concentration, competition metal ions and reaction temperature were conducted. The best a
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ARUNA. "FUNCTIONALIZED PAN BASED COPOLYMER RESINS FOR ADSORPTION OF HEAVY METAL IONS." Thesis, 2014. http://dspace.dtu.ac.in:8080/jspui/handle/repository/15461.

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In this report functionalized polyacrylonitrile (PAN) based copolymer resins were synthesized which can act as adsorbent for the adsorption of heavy metal/metal ions like Fe2+ and Hg2+ etc. Firstly, PAN and its copolymers were synthesized using styrene, acrylamide and methacrylic acid comonomers. PAN and its copolymers like poly(acrylonitrile-styrene) [PANS], poly(acrylonitrile-acrylamide) [PANAm], and poly(acrylonitrile-methacrylic acid) [PANMA] were functionalized using different concentration of triethylenetetramine (TETA) to obtain two series of polymer resins such as F1-PAN, F1-PANS, F1-P
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Yang, Cheng-Yu, and 楊政育. "Adsorption of Heavy Metal Ions ( Cu, Zn, Ni, Pb, ) by crosslinked metal ion-templated chitosan." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/56640797127369507350.

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碩士<br>國立高雄師範大學<br>化學系<br>94<br>Chitosan is capable of adsorbing metal ions due to its amine and hydroxy groups, but chitosan is soluble in organic acids and inorganic acids. Crosslinking is used to improve the acid-resisting of chitosan. Moreover, crosslinking will lower the adsorbability of chitosan. In this research, we made the crosslinked metal ion-templated chitosan with two crosslinker of Glutaraldehyde, Epichlorohydrin and four metal ion of Cu2+、Zn2+、Ni2＋、 Pb2+, and observe the situation of adsorbing heavy metal ions such as Cu2+、Zn2+、Ni2＋and Pb2+ ions with it. In this research, (1) the
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