Termik Santral Kömür Emisyonlarına Dirençli Leptolyngbya sp. Biyokütle Optimizasyonu ve Kömür Emisyonlarından CO2 Fiksasyonu

Burcu ERTİT TAŞTAN
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Çalışmada termik santral kömür emisyonlarına dirençli Leptolyngbya sp. siyanobakterisinin bu emisyonların çeşitli konsantrasyonlarında biyokütle üretiminde ve CO2 fiksasyon oranında artış sağlayabilmek için farklı parametrelerin optimizasyonu sağlanmıştır. Leptolyngbya sp.’nin artan kömür emisyonlarına direnç sağlaması için biyokütle 3-Indoleacetic acid (IAA) ve Viburnum opulus (VO) büyüme uyarıcıları ile uyarılmıştır. En yüksek biyokütle konsantrasyonu kontrol kültürden 1.3 kat daha fazla olarak 3.788 g L-1 ile BG11 + %5 Termik Santral Soğutma Suyu + 0.5 g L-1 IAA + 2.5 g L-1 VO besi yeri bileşiminde, pH 8’de, 35 ± 2 °C sıcaklıkta, 0.1 g L-1  başlangıç biyokütle konsantrasyonunda, 25 µmol m-2 s-1 (24:0, aydınlık:karanlık fotoperiyodu) ışık şiddetinde ve 14 günlük inkübasyon periyodunda elde edilmiştir. En yüksek maksimum biyokütle üretimi (Pmax) 0.263 g L-1 gün-1,  spesifik büyüme oranı 0.26 gün-1, CO2 fiksasyon miktarı 48.2 mg CO2 gün-1 olarak bulunmuştur. Çalışmada Leptolyngbya sp.’nin artan kömür emisyonlarında IAA ve VO büyüme faktörlerinin yardımıyla yüksek biyokütle üretebildiği ve kontrol kültüre göre çok daha fazla CO2’yi fiske edebildiği belirlenmiştir.

Anahtar kelimeler: 3-Indoleacetic acid, büyüme uyarıcıları, CO2 fiksasyonu, Leptolyngbya sp., Viburnum opulus

 

Biomass Optimisation of Thermal Power Plant Coal Emissions Resistant Leptolyngbya sp. and CO2 Fixation in Coal Emissions

 

ABSTRACT: In this study, different parameters were optimized in order to increase the CO2 fixation rate and biomass production of Leptolyngbya sp., which is a new flue gas resistant cyanobacteria. Leptolyngbya sp. was stimulated with 3-Indoleacetic acid (IAA) and Viburnum opulus (VO) growth stimulators to provide resistant against increasing flue gas concentrations. The maximum biomass was obtained 1.3 times higher than of control culture with 3.788 g L-1 in BG11 + 5% Thermal Power Plant Cooling Water + 0.5 g L-1 IAA + 2.5 g L-1 VO culture media, at pH 8, at 35 ± 2 °C, at 0.1 g L-1 initial biomass concentrations, with 25 µmol m-2 s-1 (24:0, light:dark photoperiod) in 14 days of incubation period. The maximum productivity (Pmax) was 0.263 g L-1 d-1, the maximum specific growth rate was 0.26 d-1 and the maximum CO2 fixation rate was 48.2 mgCO2 d-1. It was determined that compared to control culture, Leptolyngbya sp., could provide more biomass and capable of fixing more CO2 rates with the help of IAA and VO growth stimulators at increasing flue gas emissions.

Keywords: 3-Indoleacetic acid, growth stimulators, CO2 fixation, Leptolyngbya sp., Viburnum opulus


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