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Removal of nickel ion (Ni2+) from electroplating effluent by Enterobacter sp. immobilized on magnetites.

by Fung King-yuen Debera. / On t.p., "2+" is superscript. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1994. / Includes bibliographical references (leaves 102-112). / Acknowledgement --- p.i / Abstract --- p.ii / Table of Content --- p.iv / Chapter 1. --- Introduction --- p.1 / Chapter 1.1 --- Literature review --- p.1 / Chapter 1.1.1 --- Problems of heavy metals in the environment --- p.1 / Chapter 1.1.2 --- Methods of removal of heavy metal from industrial effluent --- p.5 / Chapter 1.1.3 --- The properties of magnetites --- p.10 / Chapter 1.1.4 --- Role of magnetites in water treatment --- p.12 / Chapter 1.1.5 --- The advantages of using magnetites and further application of magnetites --- p.16 / Chapter 1.2 --- Objectives of the study --- p.21 / Chapter 2. --- Materials and methods --- p.23 / Chapter 2.1 --- Selection of the organisms --- p.23 / Chapter 2.2 --- Culture media and chemicals --- p.23 / Chapter 2.3 --- Growth of the bacterial cells --- p.25 / Chapter 2.4 --- Immobilization of the bacterial cells on magnetites --- p.27 / Chapter 2.4.1 --- Effects of chemical and physical factors on the immobilization of the bacterial cells on magnetites --- p.27 / Chapter 2.4.2 --- Effect of pH on the desorption of cells from magnetites --- p.28 / Chapter 2.5 --- Nickel ion uptake experiments --- p.28 / Chapter 2.6 --- Effects of operational conditions on the nickel removal capacity of the magnetite-immobilized bacterial cells --- p.29 / Chapter 2 .6.1 --- Effect of physical factors --- p.29 / Chapter 2.6.2 --- Effect of chemical factors --- p.30 / Chapter 2.7 --- Optimization of the nickel removal efficiency --- p.30 / Chapter 2.8 --- Nickel adsorption isotherm of the magnetite- immobilized cells of Enterobacter sp4-2 --- p.30 / Chapter 2.9 --- Recovery of adsorbed Ni2+ from the magnetite- immobilized cells of Enterobacter sp4-2 --- p.31 / Chapter 2.9.1 --- Multiple adsorption-desorption cycles of Ni2+ by using citrate buffer --- p.32 / Chapter 2.9.2 --- Multiple adsorption-desorption cycles of Ni2+ by using ethylenediaminetetraacetic acid (EDTA) --- p.33 / Chapter 2.10 --- Effect of acidic treatment --- p.33 / Chapter 2.10.1 --- Effect of acidic treatment on the nickel removal capacity of the magnetites and the magnetite- immobilized cells of Enterobacter sp4-2 --- p.33 / Chapter 2.10.2 --- Effect of acidic treatment on the recovery of the adsorbed Ni2+ from magnetites and the magnetite- immobilized cells Enterobacter sp4-2 --- p.34 / Chapter 2.11 --- Removal and recovery of Ni2+ from the electroplating effluent --- p.34 / Chapter 3. --- Results --- p.36 / Chapter 3.1 --- Effects of chemical and physical factors on the immobilization of the bacterial cells on magnetites --- p.36 / Chapter 3.1.1 --- Effect of pH --- p.36 / Chapter 3.1.2 --- Effect of cells to magnetites ratio --- p.36 / Chapter 3.1.3 --- Effect of temperature --- p.39 / Chapter 3.2 --- Effect of pH on the desorption of cells from magnetites --- p.39 / Chapter 3.3 --- Nickel ion uptake experiments --- p.44 / Chapter 3.4 --- Effects of operational conditions on the nickel removal capacity of the magnetite-immobilized bacterial cells --- p.44 / Chapter 3.4.1 --- Effect of reaction temperature --- p.44 / Chapter 3.4.2 --- Effect of retention time --- p.44 / Chapter 3.4.3 --- Effect of pH --- p.47 / Chapter 3.4.4 --- Effect of the presence of cations --- p.50 / Chapter 3.4.5 --- Effect of the presence of anions --- p.50 / Chapter 3.5 --- Optimization of the nickel removal efficiency --- p.55 / Chapter 3.6 --- Nickel adsorption isotherm of the magnetite- immobilized cells of Enterobacter sp4-2 --- p.55 / Chapter 3.7 --- Recovery of adsorbed Ni2+ from the magnetite- immobilized cells of Enterobacter sp4-2 --- p.59 / Chapter 3.7.1 --- Multiple adsorption-desorption cycles of Ni2+ by using citrate buffer --- p.59 / Chapter 3.7.2 --- Multiple adsorption-desorption cycles of Ni2+ by using ethylenediaminetetraacetic acid (EDTA) --- p.63 / Chapter 3.8 --- Effect of acidic treatment --- p.63 / Chapter 3.8.1 --- Effect of acidic treatment on the nickel removal capacity of the magnetites and the magnetite-immobilized cells of Enterobacter sp4-2 --- p.63 / Chapter 3.8.2 --- Effect of acidic treatment on the recovery of the adsorbed Ni2+ from the magnetites and the magnetite-immobilized cells of Enterobacter sp4-2 --- p.66 / Chapter 3.9 --- Removal and recovery of Ni2+ from the electroplating effluent --- p.69 / Chapter 4. --- Discussion --- p.72 / Chapter 4.1 --- Selection of the organisms --- p.72 / Chapter 4.2 --- Effects of chemical and physical factors on the immobilization of the bacterial cells on magnetites --- p.72 / Chapter 4.2.1 --- Effect of pH --- p.72 / Chapter 4.2.2 --- Effect of cells to magnetites ratio --- p.74 / Chapter 4.2.3 --- Effect of temperature --- p.75 / Chapter 4.2.4 --- Effect of pH on the desorption of cells from magnetites --- p.76 / Chapter 4.3 --- Nickel ion uptake experiments --- p.78 / Chapter 4.4 --- Effects of operational conditions on the nickel removal capacity of the magnetite-immobilized bacterial cells --- p.80 / Chapter 4.4.1 --- Effect of reaction temperature --- p.80 / Chapter 4.4.2 --- Effect of retention time --- p.81 / Chapter 4.4.3 --- Effect of pH --- p.82 / Chapter 4.4.4 --- Effect of the presence of cations --- p.83 / Chapter 4.4.5 --- Effect of the presence of anions --- p.84 / Chapter 4.5 --- Optimization of the nickel removal efficiency --- p.85 / Chapter 4.6 --- Nickel adsorption isotherm of the magnetite- immobilized cells of Enterobacter sp4-2 --- p.86 / Chapter 4.7 --- Recovery of adsorbed Ni2+ from the magnetite- immobilized cells of Enterobacter sp4-2 --- p.87 / Chapter 4.7.1 --- Multiple adsorption-desorption of Ni2+ --- p.89 / Chapter 4.7.2 --- Effect of acidic treatment on the nickel removal capacity and recovery --- p.91 / Chapter 4.8 --- Removal and recovery of Ni2+ from the electroplating effluent --- p.93 / Chapter 5. --- Conclusion --- p.96 / Chapter 6. --- Summary --- p.99 / Chapter 7. --- References --- p.102

Identiferoai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_318074
Date January 1994
ContributorsFung, King-yuen Debera., Chinese University of Hong Kong Graduate School. Division of Biology.
PublisherChinese University of Hong Kong
Source SetsThe Chinese University of Hong Kong
LanguageEnglish
Detected LanguageEnglish
TypeText, bibliography
Formatprint, xi, 112 leaves : ill. ; 30 cm.
RightsUse of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/)

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