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铁/铁氧化物改性复合吸附材料的制备及其除砷性能和机理研究

Acknowledgements第9-11页
Abbreviations第11-20页
Abstract第20-24页
Abstract(中文)第25-29页
Chapter 1 General Introduction第29-38页
    1.1. Background第29-35页
    1.2. Objectives of the study第35-36页
    1.3. Thesis framework第36-38页
Chapter 2 Literature review第38-63页
    2.1. Arsenic and arsenic species第38-40页
    2.2. Geochemistry of arsenic第40-41页
    2.3. Sources and mobilization of arsenic第41-43页
    2.4. Arsenic toxicity第43-44页
    2.5. Arsenic remediation technologies第44-54页
        2.5.1. Oxidation第45-46页
        2.5.2. Ion exchange第46-47页
        2.5.3. Precipitation第47-48页
        2.5.4. Separation第48-49页
        2.5.5. Adsorption第49-54页
        2.5.6. Other remediation processes第54页
    2.6. Iron-oxides-amended adsorbents in batch and column experiments第54-59页
        2.6.1. Honeycomb briquette cinders(HBC)-a cost-effective adsorbent第57-58页
        2.6.2. Biochar-a sustainable source for environment clean-up第58-59页
    2.7. Strategies to enhance arsenic remediation in batch and column studies第59-60页
    2.8. Field scale arsenic remediation-review of the progress第60-63页
Chapter 3 Evaluation of HBC and Fe-HBC for the adsorptive removal of As(V)from aqueoussolutions第63-80页
    3.1. Graphical abstract第63页
    3.2. Introduction第63-65页
    3.3. Materials and methods第65-68页
        3.3.1. Reagents第65页
        3.3.2. Preparation of adsorbent第65-66页
        3.3.3. Adsorption experiments第66-67页
        3.3.4. Adsorbents characterization第67页
        3.3.5. Analytical methods第67-68页
    3.4. Results and discussion第68-79页
        3.4.1. Characterizations of HBC and Fe-HBC第68-71页
        3.4.2. Effect of adsorbent dose on As(Ⅴ)removal第71-72页
        3.4.3. Effect of solution pH on As(Ⅴ)removal第72-73页
        3.4.4. Adsorption isotherms第73-77页
        3.4.5. Adsorption kinetics第77页
        3.4.6. Effect of competing ions第77-79页
    3.5. Conclusions第79-80页
Chapter 4 Adsorptive removal of As(Ⅴ)and As(Ⅲ)in saturated sand filter containing amended adsorbents第80-96页
    4.1. Graphical abstract第80页
    4.2. Introduction第80-82页
    4.3. Materials and methods第82-85页
        4.3.1. Reagents第82页
        4.3.2. Filter design and specification第82页
        4.3.3. Preparation of adsorbent第82页
        4.3.4. Analytical parameters and methods第82-84页
        4.3.5. Influent water第84页
        4.3.6. Intermittent operations and analysis of samples第84页
        4.3.7. Recycling of spent adsorbents第84-85页
    4.4. Results and discussion第85-95页
        4.4.1. Removal of arsenic第85-88页
        4.4.2. Variations of pH第88-90页
        4.4.3. Influences of co-occurring ions on arsenic removal第90-92页
        4.4.4. Desorption and regeneration of the adsorbent第92页
        4.4.5. Arsenic removal using regenerated adsorbent第92-93页
        4.4.6. Adsorption mechanisms第93-95页
    4.5. Conclusions第95-96页
Chapter 5 As(Ⅲ,Ⅴ)removal from aqueous solutions using magnetic honeycomb briquette cinders(MHBC):effect of calcination on adsorbents performance第96-111页
    5.1. Graphical abstract第96页
    5.2. Introduction第96-97页
    5.3. Materials and methods第97-99页
        5.3.1. Reagents第97页
        5.3.2. Preparation of MHBC and calcined MHBC第97-126页
        5.3.3. Batch adsorption experiments第126-99页
        5.3.4. Adsorbents characterization第99页
        5.3.5. Analytical methods第99页
    5.4. Results and discussion第99-110页
        5.4.1. Characterization results第99-103页
        5.4.2. Effect of solution pH第103-104页
        5.4.3. Effect of contact time and adsorption kinetics第104-108页
        5.4.4. Effect of temperature第108页
        5.4.5. Effect of phosphate anion on arsenic removal第108-110页
    5.5. Conclusions第110-111页
Chapter 6 Influence of calcination on magnetic honeycomb briquette cinders composite for theadsorptive removal of As(Ⅲ)in fixed-bed column第111-124页
    6.1. Graphical abstract第111页
    6.2. Introduction第111-112页
    6.3. Materials and methods第112-114页
        6.3.1. Reagents第112-113页
        6.3.2. Preparation of MHBC and calcined MHBC第113页
        6.3.3. Fixed-bed column studies第113-114页
        6.3.4. Adsorbents characterization第114页
        6.3.5. Analytical methods第114页
    6.4. Results and discussion第114-122页
        6.4.1. XRD analyses第114-115页
        6.4.2. Column studies第115-119页
        6.4.3. Desorption study第119-120页
        6.4.4. As(Ⅲ)removal mechanisms第120-122页
    6.5. Conclusions第122-124页
Chapter 7 Effect of synthesis methods on magnetic Kans grass biochar for enhanced As(Ⅲ,Ⅴ)adsorption from aqueous solutions第124-144页
    7.1. Graphical abstract第124页
    7.2. Introduction第124-125页
    7.3. Materials and methods第125-128页
        7.3.1. Reagents第125页
        7.3.2. Preparation of MKGB第125-126页
        7.3.3. Adsorption experiments第126-128页
        7.3.4. Adsorbents characterization第128页
        7.3.5. Analytical methods第128页
    7.4. Results and discussion第128-142页
        7.4.1. Characterization results第128-133页
        7.4.2. Adsorption studies第133-137页
        7.4.3. Adsorption isotherms第137-139页
        7.4.4. Adsorption kinetics第139-140页
        7.4.5. Effect of co-existing ions第140-141页
        7.4.6. Desorption and regeneration第141-142页
    7.5. Conclusions第142-144页
Chapter 8 Conclusions and future perspectives第144-148页
    8.1. Major findings第144-145页
    8.2. Innovation第145-146页
    8.3. Challenges and future perspectives第146-148页
References第148-169页
Publications第169-171页

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