tailieunhanh - Summary of Geography doctoral thesis: Study on denaturation of Laterite ores by La2O3 and CeO2 to treat arsenic and phosphate in water

Synthesization and structural characterization of nano La2O3, nano CeO2, nano La2O3- CeO2 on laterite by sol - gel combustion method using gelatin precursor; investigation the adsorption and desorption capacity of arsenic, phosphate on La2O3 nanomaterials, CeO2 nanomaterial, mixed oxides La2O3-CeO2 nanomaterial and La2O3-CeO2 nanomaterials on laterite. | MINISTRY OF EDUCATION VIETNAM ACADEMY OF AND TRAINING SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY OF SCIENCE AND TECHNOLOGY DAO HONG DUC STUDY ON DENATURATION OF LATERITE ORES BY LA2O3 AND CEO2 TO TREAT ARSENIC AND PHOSPHATE IN WATER Major Enviromental engineering Major code 92 5. SUMMARY OF GEOGRAPHY DOCTORAL THESIS Ha Noi - 2020 The thesis was completed in Inorganic material room Institute of materials science Vietnam Academy of Science and Technology Science instructor 1 Assoc. Prof. PhD. Do Quang Trung Science instructor 2 Assoc. Prof. PhD. Dao Ngoc Nhiem Reviewer 1 Reviewer 2 Reviewer 3 The thesis will be defended at the university s doctoral thesis evaluation council meeting in the Graduate University of Science and Technology Vietnam Academy of Science and Technology at hour date month year 2020. - Thesis can be found in - The Library of Graduate University of Science and Technology - Vietnam s National Library Introduction 1. The urgency of the thesis Water potable resources contamination significantly affects on human health especially underground water one of the main water sources for Vietnamese people. To our knowledge groundwater can be polluted by various contaminants like arsenic ammonium fluorine nitrate and phosphate. Regarding to arsenic pollution in groundwater in Vietnam it has been studied by many national and international scientists. The results showed that there are many provinces and cities across the country with arsenic concentrations in excess of the regulation standards such as Hanoi Vinh Phuc Ha Nam. However phosphate contamination and its accumulation in groundwater over time have not been much investigated in Vietnam. It is necessary to understand the presence of phosphate in water because it affects the quality of water sources and as much to human health. The sources for phosphate presence in groundwater can be explained by human activities such as using chemical fertilizers in agriculture domestic wastewater leachates and .

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