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In counties like South Africa, firstly, the waste PET stream has posed a serious problem to the environment, and the current recycling of waste PET remains as low as 30%. The waste PET recycling industries such as PETCO & Extrupet (South Africa) are struggling to implement innovative processes to make cooperate more profitable. Secondly, metal-organic frameworks (MOFs) as a new class of porous materials, the MOFs-based water treatment holds the promises to provide cost-effective solutions dealing with the polluted water. However, the high costs of MOFs production have raised a challenge for its effective implementations. Given that, cross-cutting advances in materials and engineering will help to solve those societal challenges. To maintain the world-class research and development associated with human capacity in South Africa, this multidisciplinary and transdisciplinary work has been strengthened along with the basic-applied research continuum under the frame of South Africa (NRF)/Poland (NCBR) Joint Science and Technology Research Collaboration.
Book Synopsis Waste PET-MOF-Cleanwater by : Jianwei Ren
Download or read book Waste PET-MOF-Cleanwater written by Jianwei Ren and published by UJ Press. This book was released on 2022-11-10 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: In counties like South Africa, firstly, the waste PET stream has posed a serious problem to the environment, and the current recycling of waste PET remains as low as 30%. The waste PET recycling industries such as PETCO & Extrupet (South Africa) are struggling to implement innovative processes to make cooperate more profitable. Secondly, metal-organic frameworks (MOFs) as a new class of porous materials, the MOFs-based water treatment holds the promises to provide cost-effective solutions dealing with the polluted water. However, the high costs of MOFs production have raised a challenge for its effective implementations. Given that, cross-cutting advances in materials and engineering will help to solve those societal challenges. To maintain the world-class research and development associated with human capacity in South Africa, this multidisciplinary and transdisciplinary work has been strengthened along with the basic-applied research continuum under the frame of South Africa (NRF)/Poland (NCBR) Joint Science and Technology Research Collaboration.
In countries like South Africa, firstly, the waste PET stream has posed a serious problem to the environment, and the current recycling of waste PET remains as low as 30%. The waste PET recycling industries such as PETCO & Extrupet (South Africa) are struggling to implement innovative processes to make cooperate more profitable. Secondly, metal-organic frameworks (MOFs) as a new class of porous materials, the MOFs-based water treatment holds the promises to provide cost-effective solutions dealing with the polluted water. However, the high costs of MOFs production have raised a challenge for its effective implementations. Given that, cross-cutting advances in materials and engineering will help to solve those societal challenges. To maintain the world-class research and development associated with human capacity in South Africa, this multidisciplinary and transdisciplinary work has been strengthened along with the basic-applied research continuum under the frame of South Africa (NRF)/Poland (NCBR) Joint Science and Technology Research Collaboration.
Book Synopsis Waste PET-MOF-Cleanwater: Waste PET-Derived Metal-Organic Framework (MOFs) as Cost-Effective Adsorbents for Removal of Hazardous Elements from Polluted Water by : Jianwei Ren
Download or read book Waste PET-MOF-Cleanwater: Waste PET-Derived Metal-Organic Framework (MOFs) as Cost-Effective Adsorbents for Removal of Hazardous Elements from Polluted Water written by Jianwei Ren and published by UJ Press. This book was released on 2022-11-10 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: In countries like South Africa, firstly, the waste PET stream has posed a serious problem to the environment, and the current recycling of waste PET remains as low as 30%. The waste PET recycling industries such as PETCO & Extrupet (South Africa) are struggling to implement innovative processes to make cooperate more profitable. Secondly, metal-organic frameworks (MOFs) as a new class of porous materials, the MOFs-based water treatment holds the promises to provide cost-effective solutions dealing with the polluted water. However, the high costs of MOFs production have raised a challenge for its effective implementations. Given that, cross-cutting advances in materials and engineering will help to solve those societal challenges. To maintain the world-class research and development associated with human capacity in South Africa, this multidisciplinary and transdisciplinary work has been strengthened along with the basic-applied research continuum under the frame of South Africa (NRF)/Poland (NCBR) Joint Science and Technology Research Collaboration.
This first volume of Metal-Organic Framework Composites focusses on pharmaceutical pollution as an issue of concern due to its effects on the environment and the application of MOFs for remediation. Metal-organic frameworks (MOFs) are advanced porous materials and are promising adsorbents with facile modifications, high specific surface area, controllable porosity, and tailored surface properties. This book discusses MOFs in the removal and comprehensively evaluates the role of MOFs for efficient removal of different pharmaceutical pollutants. The authors present techniques and approaches for removal of pharmaceuticals with suitable examples.
Book Synopsis ZIF-8 Based Materials for Pharmaceutical Waste by : Awais Ahmad
Download or read book ZIF-8 Based Materials for Pharmaceutical Waste written by Awais Ahmad and published by Walter de Gruyter GmbH & Co KG. This book was released on 2023-06-06 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first volume of Metal-Organic Framework Composites focusses on pharmaceutical pollution as an issue of concern due to its effects on the environment and the application of MOFs for remediation. Metal-organic frameworks (MOFs) are advanced porous materials and are promising adsorbents with facile modifications, high specific surface area, controllable porosity, and tailored surface properties. This book discusses MOFs in the removal and comprehensively evaluates the role of MOFs for efficient removal of different pharmaceutical pollutants. The authors present techniques and approaches for removal of pharmaceuticals with suitable examples.
Metal-Organic Frameworks for Environmental Applications examines this important topic, looking at potential materials and methods for the remediation of pressing pollution issues, such as heavy-metal contaminants in water streams, radioactive waste disposal, marine oil-spillage, the treatment of textile and dye industry effluents, the clean-up of trace amounts of explosives in land and water, and many other topics. This survey of the cutting-edge research and technology of MOFs is an invaluable resource for researchers working in inorganic chemistry and materials science, but it is also ideal for graduate students studying MOFs and their applications. Examines the applications of metal-organic frameworks for the remediation of environmental pollutants Features leading experts who research the applications of MOFs from around the world, including contributions from the United States, India and China Explores possible solutions to some of today’s most pressing environmental challenges, such as heavy-metal contamination in bodies of water, oil spills and clean-up of explosives hidden in land and water Provides an excellent reference for researchers and graduate students studying in the areas of inorganic chemistry, materials chemistry and environmental science
Book Synopsis Metal-Organic Frameworks (MOFs) for Environmental Applications by : Sujit K. Ghosh
Download or read book Metal-Organic Frameworks (MOFs) for Environmental Applications written by Sujit K. Ghosh and published by Elsevier. This book was released on 2019-06-07 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal-Organic Frameworks for Environmental Applications examines this important topic, looking at potential materials and methods for the remediation of pressing pollution issues, such as heavy-metal contaminants in water streams, radioactive waste disposal, marine oil-spillage, the treatment of textile and dye industry effluents, the clean-up of trace amounts of explosives in land and water, and many other topics. This survey of the cutting-edge research and technology of MOFs is an invaluable resource for researchers working in inorganic chemistry and materials science, but it is also ideal for graduate students studying MOFs and their applications. Examines the applications of metal-organic frameworks for the remediation of environmental pollutants Features leading experts who research the applications of MOFs from around the world, including contributions from the United States, India and China Explores possible solutions to some of today’s most pressing environmental challenges, such as heavy-metal contamination in bodies of water, oil spills and clean-up of explosives hidden in land and water Provides an excellent reference for researchers and graduate students studying in the areas of inorganic chemistry, materials chemistry and environmental science
This second volume of Metal-Organic Framework Composites focusses on water pollution as a major concern and endangerment to human health and the application of MOFs for remediation. Metal-organic frameworks (MOFs) are advanced porous materials and are promising adsorbents with facile modifications, high specific surface area, controllable porosity, and tailored surface properties. The authors systematically cover the synthesis of ZIF-8 base composites and discuss the role of ZIF-8 composites in water decontamination as an adsorbent and photocatalyst.
Book Synopsis ZIF-8 Based Materials for Water Decontamination by : Awais Ahmad
Download or read book ZIF-8 Based Materials for Water Decontamination written by Awais Ahmad and published by Walter de Gruyter GmbH & Co KG. This book was released on 2023-06-06 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second volume of Metal-Organic Framework Composites focusses on water pollution as a major concern and endangerment to human health and the application of MOFs for remediation. Metal-organic frameworks (MOFs) are advanced porous materials and are promising adsorbents with facile modifications, high specific surface area, controllable porosity, and tailored surface properties. The authors systematically cover the synthesis of ZIF-8 base composites and discuss the role of ZIF-8 composites in water decontamination as an adsorbent and photocatalyst.
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 adsorption abilities for these heavy metal ions. The major goal of this thesis is to develop efficient and cost-effective adsorbents for the extraction of heavy metals from wastewater. This dissertation will focus on the development of four chemically modified high surface area adsorbents with accessible chelating sites for capturing and retaining toxic metal ions from polluted water. The first adsorbent, Nitrogen Doped Carboxylated Activated Carbon (ND-CAC), is prepared by a polymerization reaction between melamine and formaldehyde to form the melamine formaldehyde resin (MF-R) followed by carbonization at 800 ̊ C under nitrogen atmosphere to form nitrogen doped carbon (ND-C), and finally oxidation to form the ND-CAC adsorbent. The ND-CAC adsorbent shows high adsorption capacities of 750.5, 250.5, 98.2 mg/g for the extraction of Pb(II), Hg(II), and Cr(VI), respectively from aqueous solutions with a high selectivity to Pb(II). The second adsorbent, Melamine Zirconium Phosphate (M-ZrP) is prepared by a precipitation reaction between Melamine Phosphate (MP) and ZrCl4 in an aqueous solution. The M-ZrP adsorbent is used for the removal of Pb(II), Hg(II), and Cd(II) with maximum adsorption capacities of 680.4, 119.0, and 60.0 mg/g, respectively with a high selectivity to Pb(II). The third adsorbent is chemically functionalized metal organic framework (UIO-66-IT) was prepared by post-synthetic modification using the chelating ligand 2-Imino-4-Thioburit. The adsorbent was used to extract Hg(II) and (HPO4)− ions from aqueous solutions and the results revealed exceptionally high adsorption capacities toward mercury and phosphate ions of 700 and 160 mg/g, placing it among the top functionalized MOF known for the high capacity of Hg(II) removal from aqueous solutions. The fourth adsorbent, Melamine Thiourea Partially Reduced Graphene Oxide (MT-PRGO) prepared by the amidation reaction between chemically modified graphene oxide and melamine thiourea, is used for the effective extraction of Hg(II), Co(II) and Cu(II) from polluted water. The MT-PRGO adsorbent shows exceptional selectivity for the extraction of Hg(II) with a capacity of 651 mg/g, placing it among the top of carbon-based materials known for the high capacity of Hg(II) removal from aqueous solutions. Desorption studies demonstrate that the new adsorbents ND-CAC, M-ZrP, UIO-66-IT, and MT-PRGO are easily regenerated with the desorption of the heavy metal ions Hg(II), Pb(II), Cd(II), and Cr(VI) reaching 99 % - 100 % recovery from their maximum sorption capacities using different eluents. Moreover, all prepared adsorbents showed tremendous abilities to clean contaminated water from toxic heavy metals at trace concentrations. That prove the ability of using them at water contamination level when the concentration of heavy metals is very low. The new adsorbents ND-CAC, M-ZrP, UIO-66-IT, and MT-PRGO are proposed as top performing remediation adsorbents for the extraction of the heavy metals Pb(II), Hg(II), Cd(II), Cr(VI), and (HPO4)− from waste and polluted water.
Book Synopsis Applications of Chemically Modified Nitrogen Doped Carbon, Zirconium Phosphate, Metal Organic Frameworks, and Functionalized Graphene Oxide Nanostructured Adsorbents in Water Treatment by : Ayyob Mohammed A. Bakry
Download or read book Applications of Chemically Modified Nitrogen Doped Carbon, Zirconium Phosphate, Metal Organic Frameworks, and Functionalized Graphene Oxide Nanostructured Adsorbents in Water Treatment written by Ayyob Mohammed A. Bakry and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 adsorption abilities for these heavy metal ions. The major goal of this thesis is to develop efficient and cost-effective adsorbents for the extraction of heavy metals from wastewater. This dissertation will focus on the development of four chemically modified high surface area adsorbents with accessible chelating sites for capturing and retaining toxic metal ions from polluted water. The first adsorbent, Nitrogen Doped Carboxylated Activated Carbon (ND-CAC), is prepared by a polymerization reaction between melamine and formaldehyde to form the melamine formaldehyde resin (MF-R) followed by carbonization at 800 ̊ C under nitrogen atmosphere to form nitrogen doped carbon (ND-C), and finally oxidation to form the ND-CAC adsorbent. The ND-CAC adsorbent shows high adsorption capacities of 750.5, 250.5, 98.2 mg/g for the extraction of Pb(II), Hg(II), and Cr(VI), respectively from aqueous solutions with a high selectivity to Pb(II). The second adsorbent, Melamine Zirconium Phosphate (M-ZrP) is prepared by a precipitation reaction between Melamine Phosphate (MP) and ZrCl4 in an aqueous solution. The M-ZrP adsorbent is used for the removal of Pb(II), Hg(II), and Cd(II) with maximum adsorption capacities of 680.4, 119.0, and 60.0 mg/g, respectively with a high selectivity to Pb(II). The third adsorbent is chemically functionalized metal organic framework (UIO-66-IT) was prepared by post-synthetic modification using the chelating ligand 2-Imino-4-Thioburit. The adsorbent was used to extract Hg(II) and (HPO4)− ions from aqueous solutions and the results revealed exceptionally high adsorption capacities toward mercury and phosphate ions of 700 and 160 mg/g, placing it among the top functionalized MOF known for the high capacity of Hg(II) removal from aqueous solutions. The fourth adsorbent, Melamine Thiourea Partially Reduced Graphene Oxide (MT-PRGO) prepared by the amidation reaction between chemically modified graphene oxide and melamine thiourea, is used for the effective extraction of Hg(II), Co(II) and Cu(II) from polluted water. The MT-PRGO adsorbent shows exceptional selectivity for the extraction of Hg(II) with a capacity of 651 mg/g, placing it among the top of carbon-based materials known for the high capacity of Hg(II) removal from aqueous solutions. Desorption studies demonstrate that the new adsorbents ND-CAC, M-ZrP, UIO-66-IT, and MT-PRGO are easily regenerated with the desorption of the heavy metal ions Hg(II), Pb(II), Cd(II), and Cr(VI) reaching 99 % - 100 % recovery from their maximum sorption capacities using different eluents. Moreover, all prepared adsorbents showed tremendous abilities to clean contaminated water from toxic heavy metals at trace concentrations. That prove the ability of using them at water contamination level when the concentration of heavy metals is very low. The new adsorbents ND-CAC, M-ZrP, UIO-66-IT, and MT-PRGO are proposed as top performing remediation adsorbents for the extraction of the heavy metals Pb(II), Hg(II), Cd(II), Cr(VI), and (HPO4)− from waste and polluted water.
This book reviews adsorption techniques to clean wastewater, with focus on pollution by dyes and heavy metals. Advanced adsorbents include carbon nanomaterials, biomass, cellulose, polymers, clay, composites and chelating materials.
Book Synopsis Green Adsorbents to Remove Metals, Dyes and Boron from Polluted Water by : Inamuddin
Download or read book Green Adsorbents to Remove Metals, Dyes and Boron from Polluted Water written by Inamuddin and published by Springer Nature. This book was released on 2020-08-31 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews adsorption techniques to clean wastewater, with focus on pollution by dyes and heavy metals. Advanced adsorbents include carbon nanomaterials, biomass, cellulose, polymers, clay, composites and chelating materials.
Metal-organic frameworks (MOFs) are a series of porous materials made of wellorganized inorganic metal nodes linked via organic ligands (linkers). MOFs have gained particular attention due to their applications in gas adsorption and separation, selective sorption of harmful chemicals, catalysis, energy, sensing, bioscience, and electronics. The thesis will focus on two different aspects of MOFs. Briefly, in the first portion of the thesis, a less-toxic solvent than N,N-dimethylformamide (DMF) can be used to make MOFs will be demonstrated. In the latter portion of the thesis, my efforts to incorporate organic moieties into MOFs for sulfur dioxide sequestration will be described. With regard to the use of less-toxic solvents, it should be noted that with notable exceptions (e.g., mechanochemical, water-based, and electrochemical), the synthesis of MOFs is often carried out at elevated temperature using DMF or N,Ndiethylformamide (DEF) as the solvent. However, the industrial-scale synthesis of MOFs from DMF/DEF may generate significant amounts of DMF waste, which can exhibit reprotoxicity and end-of-life issues associated with the formation of NOx upon incineration. With the introduction of the Registration, Evaluation and Authorization of Chemicals (REACH) legislation in the European Union, there is a growing trend towards safer production and use of chemicals by industry. As such, it is crucial to develop green/sustainable methods of synthesizing MOFs. Dihydrolevoglucosenone (Cyrene), a green bioderived solvent from waste cellulose, was applied to the synthesis of MOFs. The MOF, HKUST-1, exhibited a larger Brunauer-Emmett-Teller (BET) surface area than HKUST-1 synthesized with DMF. Four additional archetypal MOFs were also synthesized to verify the universal application of Cyrene in the synthesis of MOFs. However, their BET surface areas were lower than DMF-made MOFs. It was observed that an aldol-condensation product of two Cyrene molecules, in addition to Cyrene trapped within the pores, were responsible for the lower-than expected surface areas. The use of Cyrene has led to a series of design principles that eliminate the need for problematic solvents such as DMF and can be applied to the synthesis of a wide range of MOFs. With regard to sulfur dioxide sequestration, it should be noted that sulfur dioxide, a colorless gas belonging to SOx family, yields detrimental effects via inhalation or absorption. Since MOFs are ideal sorbents for toxic gases, in Chapter 3, I will continue along the theme of reprotoxicity and end-of-life issues by designing MOFs which have the potential to chemically react with sulfur dioxide. Unlike the de novo synthetic pathways in the Chapter 2, the Chapter 3 will demonstrate how solvent-assisted linker exchange (SALE) and solvent-assisted linker incorporation (SALI) can be used to make MOFs with the ideal functionalities for sulfur dioxide sequestration. In Chapter 3, the main focus of the work was to introduce the butadiene functional groups into different MOFs, namely UiO-66, UiO-66-MA (muconic-acid-functionalized UiO-66), MOF-808, MOF-808-BS (butadiene-sulfone-functionalized MOF-808) and MOF-808-BD (butadiene-functionalized MOF-808), the SALI method was vitalized to determine if the butadiene group could undergo a cheletropic reaction in the presence of sulfur dioxide inside the MOF. All MOFs were exposed to a constant flow of sulfur dioxide, the UiO-66-MA was observed to take up three times more sulfur dioxide than the unfunctionalized parent UiO-66. For the MOF-808 series, surprisingly, the unfuctionalized MOF-808 was able to absorb more than two times the sulfur dioxide than MOF-808-BD, and five times higher than MOF-808-BS, respectively. This suggests that the terminal waters and hydroxide groups are responsible for the enhanced uptake. Despite the improved uptake of sulfur dioxide in UiO-66-MA and MOF-808, nuclear magnetic resonance (NMR) and infrared (IR) data indicate that no chemical change occurred to the butadiene-functionalized group, which suggests that a cheletropic reaction did not occur.
Book Synopsis From Design to Application by : Jinfeng Zhang
Download or read book From Design to Application written by Jinfeng Zhang and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal-organic frameworks (MOFs) are a series of porous materials made of wellorganized inorganic metal nodes linked via organic ligands (linkers). MOFs have gained particular attention due to their applications in gas adsorption and separation, selective sorption of harmful chemicals, catalysis, energy, sensing, bioscience, and electronics. The thesis will focus on two different aspects of MOFs. Briefly, in the first portion of the thesis, a less-toxic solvent than N,N-dimethylformamide (DMF) can be used to make MOFs will be demonstrated. In the latter portion of the thesis, my efforts to incorporate organic moieties into MOFs for sulfur dioxide sequestration will be described. With regard to the use of less-toxic solvents, it should be noted that with notable exceptions (e.g., mechanochemical, water-based, and electrochemical), the synthesis of MOFs is often carried out at elevated temperature using DMF or N,Ndiethylformamide (DEF) as the solvent. However, the industrial-scale synthesis of MOFs from DMF/DEF may generate significant amounts of DMF waste, which can exhibit reprotoxicity and end-of-life issues associated with the formation of NOx upon incineration. With the introduction of the Registration, Evaluation and Authorization of Chemicals (REACH) legislation in the European Union, there is a growing trend towards safer production and use of chemicals by industry. As such, it is crucial to develop green/sustainable methods of synthesizing MOFs. Dihydrolevoglucosenone (Cyrene), a green bioderived solvent from waste cellulose, was applied to the synthesis of MOFs. The MOF, HKUST-1, exhibited a larger Brunauer-Emmett-Teller (BET) surface area than HKUST-1 synthesized with DMF. Four additional archetypal MOFs were also synthesized to verify the universal application of Cyrene in the synthesis of MOFs. However, their BET surface areas were lower than DMF-made MOFs. It was observed that an aldol-condensation product of two Cyrene molecules, in addition to Cyrene trapped within the pores, were responsible for the lower-than expected surface areas. The use of Cyrene has led to a series of design principles that eliminate the need for problematic solvents such as DMF and can be applied to the synthesis of a wide range of MOFs. With regard to sulfur dioxide sequestration, it should be noted that sulfur dioxide, a colorless gas belonging to SOx family, yields detrimental effects via inhalation or absorption. Since MOFs are ideal sorbents for toxic gases, in Chapter 3, I will continue along the theme of reprotoxicity and end-of-life issues by designing MOFs which have the potential to chemically react with sulfur dioxide. Unlike the de novo synthetic pathways in the Chapter 2, the Chapter 3 will demonstrate how solvent-assisted linker exchange (SALE) and solvent-assisted linker incorporation (SALI) can be used to make MOFs with the ideal functionalities for sulfur dioxide sequestration. In Chapter 3, the main focus of the work was to introduce the butadiene functional groups into different MOFs, namely UiO-66, UiO-66-MA (muconic-acid-functionalized UiO-66), MOF-808, MOF-808-BS (butadiene-sulfone-functionalized MOF-808) and MOF-808-BD (butadiene-functionalized MOF-808), the SALI method was vitalized to determine if the butadiene group could undergo a cheletropic reaction in the presence of sulfur dioxide inside the MOF. All MOFs were exposed to a constant flow of sulfur dioxide, the UiO-66-MA was observed to take up three times more sulfur dioxide than the unfunctionalized parent UiO-66. For the MOF-808 series, surprisingly, the unfuctionalized MOF-808 was able to absorb more than two times the sulfur dioxide than MOF-808-BD, and five times higher than MOF-808-BS, respectively. This suggests that the terminal waters and hydroxide groups are responsible for the enhanced uptake. Despite the improved uptake of sulfur dioxide in UiO-66-MA and MOF-808, nuclear magnetic resonance (NMR) and infrared (IR) data indicate that no chemical change occurred to the butadiene-functionalized group, which suggests that a cheletropic reaction did not occur.
The book reviews the state-of-the art methods developed and used to remove heavy metals. It presents both industrial waste and mineral based adsorbent as well as bio waste materials making the book absolutely a source of low cost methods available till date.
Book Synopsis Heavy Metals Adsorption by : Ajay Kumar Goswami
Download or read book Heavy Metals Adsorption written by Ajay Kumar Goswami and published by Walter de Gruyter GmbH & Co KG. This book was released on 2022-11-07 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book reviews the state-of-the art methods developed and used to remove heavy metals. It presents both industrial waste and mineral based adsorbent as well as bio waste materials making the book absolutely a source of low cost methods available till date.
Clean and pure water is one of the implicit requisites for a healthy human population. However the growing industrialization and extensive use of chemicals for various concerns, has increased the burden of unwanted pollutants in the drinking water of developing countries like India. The entry of potentially hazardous substances into the biota has been magnifying day by day. In the absence of a possible stoppage of these, otherwise, useful chemicals, the only way to maintain safer water bodies is to develop efficient purifying technologies. One such immensely beneficial procedure that has been in use is that of purification of water using 'adsorbents'. Indigenous minerals and natural plants products have potential for removing many pollutants viz. fluoride, arsenic, nitrate, heavy metals, pesticides as well as tri-halomethanes. Adsorbents which are derived from carbon, alumina, zeolite, clay minerals, iron ores, industrial by products, and natural products viz. parts of the plants, herbs and algal biomass offer promising potential of removal of these pollutants with greater adsorbing efficiencies.
Book Synopsis Design and Development of Low Cost Adsorbents by : Girdhar Joshi
Download or read book Design and Development of Low Cost Adsorbents written by Girdhar Joshi and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clean and pure water is one of the implicit requisites for a healthy human population. However the growing industrialization and extensive use of chemicals for various concerns, has increased the burden of unwanted pollutants in the drinking water of developing countries like India. The entry of potentially hazardous substances into the biota has been magnifying day by day. In the absence of a possible stoppage of these, otherwise, useful chemicals, the only way to maintain safer water bodies is to develop efficient purifying technologies. One such immensely beneficial procedure that has been in use is that of purification of water using 'adsorbents'. Indigenous minerals and natural plants products have potential for removing many pollutants viz. fluoride, arsenic, nitrate, heavy metals, pesticides as well as tri-halomethanes. Adsorbents which are derived from carbon, alumina, zeolite, clay minerals, iron ores, industrial by products, and natural products viz. parts of the plants, herbs and algal biomass offer promising potential of removal of these pollutants with greater adsorbing efficiencies.
