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Arsenic removal in groundwater by UV based photocatalysis with immobilized ZnO-nanoparticle on ceramic plate
Adnan A.a, Notodarmodjo S.a, Helmy Q.a
a Environmental Engineering Department, Faculty of Civil and Environmental Engineering, Institute of Technology Bandung, Bandung, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© Published under licence by IOP Publishing Ltd.Arsenic (As) is naturally present in the lithosphere (earth crusts, soil, rock and sediment) and hydrosphere (surface water, aquifers, deep wells, and oceans). It can exist in the groundwater from the weathering process of rocks which caused a high concentration of As in groundwater and increased risk of health when consuming the contaminated water. To reduce this risk, As standard in drinking water was set by WHO and Indonesia’s drinking water standard of 0,01 mg/L. In this study, arsenic contaminated water treatment is carried out using advanced oxidation process ZnO/UV photocatalytic. The immobilized ZnO nanoparticle catalyst coated onto a ceramic plate by dip coating method. Kinetic study was performed in a batch reactor with artificial ground water using sodium arsenite (NaAsO2) at pH 4, 7, and 10 with initial concentration of arsenic set aside at 1 mg/L, 3 mg/L, and 5 mg/L. ZnO was irradiated by UV-C light (λ = 265 nm) for photocatalysis of arsenite As (III) oxidation into arsenate As(V) for 2 hours. Removal efficiency using ZnO/UV photocatalysis for arsenic total (99,99% of 1 mg/L, 83,25% of 3 mg/L, and 51,82% of 5 mg/L) and for As (III) (99,99% of 1 mg/L, 96,34% of 3 mg/L, and 77,73% of 5 mg/L) in acidic condition. Data analysis in the study used the AAS method to calculate the value of the total arsenic concentration tested and the colorimetric spectrophotometer method to calculate the value of As (III) and to determine the absorb of ceramic plate coated ZnO. The characteristics of ceramic plate immobilized ZnO nanoparticles is analyzed by SEM-EDS. ZnO nanoparticles coated onto ceramic plate surfaces is 80,65% (5,5 mg/cm2). This study was conducted to determine the optimum dose of catalyst used to oxidize As (III) to As (V) and the capacity of the immobilized ceramic plate catalyst in adsorbing arsenic compounds in solution which was then presented in the final research report.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Advanced Oxidation Processes,Contaminated water,Dipcoating methods,Drinking water standards,Initial concentration,Nanoparticle catalysts,Removal efficiencies,Weathering process[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]The study was performed within the ITB-P3MI research scheme; a research programs on community service, and innovation of ITB research group which is co-funded by the Indonesia Ministry of Research, Technology and Higher Education (Ristek-Dikti).This study was also supported by the Bandung Ceramic Research Center, the Indonesia Ministry of Industry (Kemenperin) in providing and developing methods for ceramic synthesis.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1088/1757-899X/536/1/012075[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]