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Influence of Different Culture Selection Methods on Polyhydroxyalkanoate Production At Shortterm Biomass Enrichment
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نویسنده
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Ahmadi F. ,Zinatizadeh A. A. ,Asadi A. ,Younesi H.
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منبع
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International Journal Of Engineering - 2019 - دوره : 32 - شماره : 2 - صفحه:184 -192
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چکیده
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In this study, the potential of four different culture selection methods under shortterm enrichment time (ste) to accumulate phaproducing bacteria in mixed activated sludge was compared and the most efficient culture selection method was introduced. this means, phaproducing microbial community was firstly enriched in a sequencing batch bioreactor (sbr) with four different selection methods including an anaerobicaerobic process (sbr1), a fully aerobic batch process (sbr2), an uncoupled carbon and nitrogen feeding regime (sbr3) and aerobic/anoxic process (sbr4). in the next step, cellular pha content was maximized in a fedbatch accumulator. from the obtained results, pha could be accumulated up to 13.2, 10.8, 22.36, and 6 % (mgpha/mgtss) in sbr1, sbr2, sbr3, and sbr4, respectively. uncoupled carbon and nitrogen feeding regime (sbr3) showed the best pha accumulating ability when acetate was used as feed. also, the sbr3 was fed by softdrink industrial wastewater to evaluate the capability of the selected strategy for treating real wastewater, which 13.75% of mgpha/mgtss was achieved.
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کلیدواژه
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Polyhydroxyalkanoate ,Shortterm Enrichment Time (Ste) ,Acetate ,Softdrink Industrial Wastewater
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آدرس
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Razi University, Environmental Research Center (Erc), Faculty Of Chemistry, Department Of Applied Chemistry, Iran, Razi University, Environmental Research Center (Erc), Faculty Of Chemistry, Department Of Applied Chemistry, Iran, Yasouj University, Department Of Gas And Petroleum, Iran, Tarbiat Modares University, Faculty Of Natural Resources And Marine Science, Department Of Environmental Science, Iran
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پست الکترونیکی
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hunesi@yahoo.com
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Authors
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