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Polyhydroxyalkanoate (PHA) production from tapioca industrial wastewater treatment: Influence of operating conditions on PHA content
Setyawaty R.a, Setiadi T.b, Katayama-Hirayama K.a, Kaneko H.a, Hirayama K.a
a Interdiciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Kofu, 400-8511, Japan
b Department of Chemical Engineering, Bandung Institute of Technology (ITB), Bandung, 40132, 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]© 2012, Chinese Institute of Environmental Engineering. All rights reserved.The experiments found that the average of PHA contents in Experiment 1, 2, 3, and 4 were 0.102, 0.043, 0.04, and 0.031 g PHA g-1 MLSS (mixed liquor suspended solids), respectively. The maximum value in Experiment 1 was 0.3 g PHA g-1 MLSS. The average COD removal of experiment 1, 2, 3, and 4 was 26, 37, 23, and 18%, respectively.The aims of these experiments were treating tapioca processing waste water to produce polyhydroxyalkanoates (PHAs) and removal of chemical oxygen demand (COD). The experiments were conducted in a sequencing batch reactor with a volume of 6 L. The entire experimental condition was anaerobic-aerobic-anaerobic. Experiment 1, 2 and 3 had the first 2 h for feeding time while Experiment 4 had 3 h. The 4 h between feeding time and settling time were variation of aeration time and without aeration. Experiment 1 had 2 h aeration time and 2 h without aeration. Experiment 2 has 1 h aeration and 3 h without aeration. Experiment 3 had 1 h interval alternating between aeration time and no aeration. Experiment 4 had 2 h aeration and 1 h no aeration. The first 6 h was mixing, the last 3 h was settling and draining time with total operating time 9 h.[/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]Aerobic-anaerobic,Experimental conditions,Industrial wastewater treatment,Industrial wastewaters,Mixed liquor suspended solids,Operating condition,Polyhydroxyalkanoates,Sequencing batch reactors[/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]Chemical oxygen demand (COD),Polyhydroxyalkanoates (PHA),Sequencing batch reactor (SBR),Tapioca industrial wastewater[/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]