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Obtaining complete mixing using hydrodynamic analysis on batch reactor
Hadisoebroto R.a, Notodarmojo S.b, Kamil I.M.b, Bindar Y.b, Santosa R.b
a Environmental Engineering Department, Faculty of Landscape Architecture and Environmental Engineering, Trisakti University, Indonesia
b Environmental Engineering Program, Faculty of Civil and Environmental Engineering, Institut Teknologi 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]© 2107 Int. J. of GEOMATE.This research aims to find the best possible mixing conditions in a multi-phase reactor consist of wastewater, activated sludge and aeration. This has been done by analyzing flow profiles in the system using experimental and computational work. Hydrodynamic characteristics, such as influent flow rate, aerator configuration, baffle installment, play important role for wastewater treatment process. Determination of influent flow rate and the reactor configuration have done by analyzing flow profile in laboratory scale single-phase reactor with the dimension of 16 L. Velocity profile was developed from tracer study. There were 2 influent flow rate variations of 0,0095 L/s and 0,02 L/s, in 3 variations of reactor configuration. The first variation was without modification (control), the second was baffled reactor and the third was porous reactor. From the experimental work, it was obtained that the influent flow rate of 0,0095 L/s gave longer Residence Time Detention (RTD) and longer time to reach the outlet than flow rate of 0,02 L/s. The baffled configuration gave longer RTD and longer time to reach the outlet as well than other configuration. This two results was reasonable since the first influent flow rate and the baffled reactor have higher effective volume than other variations. In multi-phase system, experimental work was done in batch system to observe the contact between air-bubble and sludge in reactor, which then calibrated using CFD (Computational Fluid Dynamic) model. The result showed that the model of mixture in k-ε equation was considerable to use in future simulation work. The using of diffuser could increase mixing condition inside the reactor due to its higher effective volume.[/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][/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]Batch reactor,CFD model,Hydrodynamic,Multi-phase system[/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][/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][/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]