Growth and anaerobic digestion characteristics of microalgae cultivated using various types of sewage

Hidaka, Taira; Inoue, Kenichi; Suzuki, Yutaka; Tsumori, Jun

doi:10.1016/j.biortech.2014.07.061

Cited by 25 publications

(11 citation statements)

References 25 publications

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“…Methane yield of Chlorella sp. microalgae anaerobic digestion ranged from 123 mL CH 4 /g VS to 369 mL CH 4 /g VS [7,12,30,31]. In turn, methane yield of 317.31 mL CH 4 /g VS was obtained with Chroococcus sp.…”

Section: Composition Of Chlorella Sp Microalgae Cultivated On Adesmentioning

confidence: 94%

“…A long HRT during AD of microalgae biomass can increase nitrogen release [12]. The relationship between the substrate C/N ratio and apparent released ammonia was investigated by Hikada et al [31]. They found that microalgae biomass consisting mainly of Chlorella sp.…”

Section: Composition Of Chlorella Sp Microalgae Cultivated On Adesmentioning

confidence: 99%

“…In most cases, microalgae biomass usually contains high amounts of proteins, which is reflected by low C/N of 10 or below. Hidaka et al [31] reported C/N ratio ranged 2.5-5.3 for Chlorella sp. cultivated on filtrate from dewatering of anaerobically digested sludge.…”

Section: Composition Of Chlorella Sp Microalgae Cultivated On Adesmentioning

confidence: 99%

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The Influence of Anaerobic Digestion Effluents (ADEs) Used as the Nutrient Sources for Chlorella sp. Cultivation on Fermentative Biogas Production

Dębowski

Szwaja

Zieliński

et al. 2016

Waste Biomass Valor

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Purpose This study investigated the chemical characteristics and anaerobic digestion of Chlorella sp. microalgae cultivated on various anaerobic digestion effluents (ADEs) as a nutrient medium. Chlorella sp. was grown in anaerobically digested effluent of dairy wastewater (DW), municipal wastewater sludge (WS), maize silage and swine slurry, and cattle manure (CM). Methods To evaluate the anaerobic biodegradability of harvested biomass, 20-days batch anaerobic digestion experiments were used. Results It was found that a nutrient medium directly affected nitrogen concentration in the cultivated biomass, as well as the C/N ratio value which ranged 7.2-12.9. Higher C/N ratio of the Chlorella sp. cultivated on DW and WS significantly enhanced the methane production, which was 241 ± 5.5 mL CH 4 /g VS and 267 ± 10.9 mL CH 4 /g VS, respectively. The highest biogas production rate of 61.28 ± 2.7 mL/g VSÁd and methane concentration in biogas of 69.7 ± 4.1 % were obtained during the digestion of Chlorella sp. biomass cultivated on WS.Conclusions These results proved the applicability of ADEs as a nutrient medium for Chlorella sp. cultivation and the impact of a nutrient source on C/N ratio in harvested biomass, which subsequently affected the biogas/ methane yield.

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Section: Composition Of Chlorella Sp Microalgae Cultivated On Adesmentioning

confidence: 94%

Section: Composition Of Chlorella Sp Microalgae Cultivated On Adesmentioning

confidence: 99%

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The Influence of Anaerobic Digestion Effluents (ADEs) Used as the Nutrient Sources for Chlorella sp. Cultivation on Fermentative Biogas Production

Dębowski

Szwaja

Zieliński

et al. 2016

Waste Biomass Valor

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“…Scenario 3 indicates that this system can be economical by getting mature technology for this system. 0.039 x10 6 7.33 x10 6 Internal rate of return (%) -6.14 26…”

Section: Economic Analysis and Evaluationmentioning

confidence: 99%

Mi̇kroalg Beslemeli̇ Bi̇yogaz Kojenerasyon Si̇stemi̇ni̇n Ekonomi̇k Anali̇zi̇

Akkaya¹

2016

Mugla Journal of Science and Technology

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“…However, inoculated specific microalgae species in treated effluent showed retarded growth [8], and microorganisms and suspended solids (SS) in wastewater may have a negative impact on the growth [9]. Therefore, the cultivation of specific microalgae species in actual WWTPs is difficult [10]. Sturm and Lamer [11] succeeded in outdoor indigenous microalgae cultivation with treated effluent for 7 months.…”

Section: Introductionmentioning

confidence: 99%

Effects of CO<sub>2</sub> Addition on Energy Production by Indigenous Microalgae Cultivation with Treated Effluent in Wastewater Treatment Plants

Takabe

Hidaka

Tsumori

et al. 2016

J. of Wat. & Envir. Tech.

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Carbon dioxide (CO 2 ) emitted from facilities such as incinerators in wastewater treatment plants (WWTPs) is an essential carbon source for indigenous microalgae, and cultivation with the CO 2 is a promising energy production system for the WWTPs. In this study, CO 2 addition was controlled by pH in cultures, and indoor experiments, including three reactors with the addition (pH at 7, 8, 9) and one reactor without the addition (at 10.8), were conducted to reveal suitable additional conditions for the cultivation with treated effluent. Six-month outdoor experiments were performed to investigate its effectiveness. The indoor experiments verified that not only an increase of suspended solids concentrations but also that of higher heating values to which high carbon and hydrogen content contributed were achieved by CO 2 addition, represented as 170 mg/L and 21.0 kJ/g at pH 8 and 50 mg/L and 11.6 kJ/g at 10.8. The suitability of the addition at pH 8 is suggested. The outdoor experiment revealed that Scenedesmaceae and Dictyosphaeriaceae dominated with the addition at pH 8 and without the addition, respectively. Addition of CO 2 at pH 8 enhanced energy production efficiency approximately from 110 to 150 kJ/(m 2 ·d), and its effectiveness on the outdoor cultivation was verified.

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Growth and anaerobic digestion characteristics of microalgae cultivated using various types of sewage

Cited by 25 publications

References 25 publications

The Influence of Anaerobic Digestion Effluents (ADEs) Used as the Nutrient Sources for Chlorella sp. Cultivation on Fermentative Biogas Production

The Influence of Anaerobic Digestion Effluents (ADEs) Used as the Nutrient Sources for Chlorella sp. Cultivation on Fermentative Biogas Production

Mi̇kroalg Beslemeli̇ Bi̇yogaz Kojenerasyon Si̇stemi̇ni̇n Ekonomi̇k Anali̇zi̇

Effects of CO<sub>2</sub> Addition on Energy Production by Indigenous Microalgae Cultivation with Treated Effluent in Wastewater Treatment Plants

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