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Evaluation and Development of Metal ...

Jacobson, Andrew Thomas.

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Evaluation and Development of Metal Oxyhydroxides for Water Remediation.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Evaluation and Development of Metal Oxyhydroxides for Water Remediation./
作者:	Jacobson, Andrew Thomas.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
面頁冊數:	107 p.
附註:	Source: Dissertations Abstracts International, Volume: 81-02, Section: B.
Contained By:	Dissertations Abstracts International81-02B.
標題:	Chemical engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13880836
ISBN:	9781085599474

Evaluation and Development of Metal Oxyhydroxides for Water Remediation.
Jacobson, Andrew Thomas.

Evaluation and Development of Metal Oxyhydroxides for Water Remediation. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 107 p.

Source: Dissertations Abstracts International, Volume: 81-02, Section: B.

Thesis (Ph.D.)--University of Wyoming, 2019.

This item must not be sold to any third party vendors.

Clean water for drinking and irrigation is an essential resource that is becoming increasingly more difficult to obtain. Water resources around the world are being depleted and contaminated with a variety of pollutants. This project aims to mitigate these issues through remediation of water using iron and titanium oxyhydroxides. Arsenic and selenium are micropollutants found in waters worldwide due to natural and anthropogenic activities. These pollutants cause major health issues to humans and wildlife when consumed, and therefore development of efficient cost-effective methods in their removal is essential. Due to its ubiquity and low cost, the use of natural goethite (α-FeOOH) for adsorption of ions from solution is a promising method to remove arsenic and selenium from water. Natural goethite was characterized and studied at varying conditions for the removal of arsenate and selenite anions from water. Isotherm and kinetic models were applied, resulting in maximum adsorption capacities of 6.204 and 7.740 mg/g for arsenate and selenite, respectively. Desorption, for potential regenerability and disposal of goethite, was also studied.Carbonate anions are the chief contributor to alkalinity in natural aqueous systems, inland and at sea. Alkalinity is an essential component of healthy aquatic environments; nonetheless, in elevated concentrations alkalinity can cause issues, especially in irrigation systems. Irrigation of soils high in alkalinity can result in major problems to the soil health. Therefore, waters high in alkalinity are conventionally treated to harmless levels through the addition of strong acids. However, the addition of acids can add undesirable anions, solubilize toxic trace elements, corrode irrigation equipment, and are hazardous to the users. The use of solid titanium oxyhydroxide, TiO(OH)2, has the potential to remove alkalinity without the issues associated with acid injection. In this project, TiO(OH)2 is synthesized, characterized and evaluated in its use for alkalinity remediation. Data from open and closed reaction systems in combination with attenuated total reflectance Fourier-transform infrared (ATR-FTIR) analysis of aqueous interfacial species were used to propose a reaction mechanism.

ISBN: 9781085599474Subjects--Topical Terms:

560457
Chemical engineering.

Evaluation and Development of Metal Oxyhydroxides for Water Remediation.
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