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Cultivation of Scenedesmus acuminatus in different liquid digestates from anaerobic digestion of pulp and paper industry biosludge

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Cultivation of Scenedesmus acuminatus in different liquid digestates from anaerobic digestion of pulp and paper industry biosludge. / Tao, Ran; Lakaniemi, Aino-Maija; Rintala, Jukka A.

julkaisussa: Bioresource Technology, Vuosikerta 245, Nro A, 2017, s. 706-713.

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@article{a54f9107177748479b0f316e99d7eeb7,
title = "Cultivation of Scenedesmus acuminatus in different liquid digestates from anaerobic digestion of pulp and paper industry biosludge",
abstract = "Different undiluted liquid digestates from mesophilic and thermophilic anaerobic digesters of pulp and paper industry biosludge with and without thermal pretreatment were characterized and utilized for cultivating Scenedesmus acuminatus. Higher S. acuminatus biomass yields were obtained in thermophilic digestates (without and with pretreatment prior to anaerobic digestion (AD): 10.2 ± 2.2 and 10.8 ± 1.2 g L−1, respectively) than in pretreated mesophilic digestates (7.8 ± 0.3 g L−1), likely due to differences in concentration of sulfate, iron, and/or other minor nutrients. S. acuminatus removed over 97.4{\%} of ammonium and 99.9{\%} of phosphate and sulfate from the digestates. Color (74–80{\%}) and soluble COD (29–39{\%}) of the digestates were partially removed. Different AD processes resulted in different methane yields (18–126 L CH4 kg−1 VS), digestate compositions, and microalgal yields. These findings emphasize the importance of optimizing each processing step in wood-based biorefineries and provide information for pulp and paper industry development for enhancing value generation.",
keywords = "Digestate characteristics, Microalgal growth, Nutrient recovery, Pulp and paper industry, Wastewater treatment",
author = "Ran Tao and Aino-Maija Lakaniemi and Rintala, {Jukka A.}",
year = "2017",
doi = "10.1016/j.biortech.2017.08.218",
language = "English",
volume = "245",
pages = "706--713",
journal = "Bioresource Technology",
issn = "0960-8524",
publisher = "ELSEVIER SCI LTD",
number = "A",

}

RIS (suitable for import to EndNote) - Lataa

TY - JOUR

T1 - Cultivation of Scenedesmus acuminatus in different liquid digestates from anaerobic digestion of pulp and paper industry biosludge

AU - Tao, Ran

AU - Lakaniemi, Aino-Maija

AU - Rintala, Jukka A.

PY - 2017

Y1 - 2017

N2 - Different undiluted liquid digestates from mesophilic and thermophilic anaerobic digesters of pulp and paper industry biosludge with and without thermal pretreatment were characterized and utilized for cultivating Scenedesmus acuminatus. Higher S. acuminatus biomass yields were obtained in thermophilic digestates (without and with pretreatment prior to anaerobic digestion (AD): 10.2 ± 2.2 and 10.8 ± 1.2 g L−1, respectively) than in pretreated mesophilic digestates (7.8 ± 0.3 g L−1), likely due to differences in concentration of sulfate, iron, and/or other minor nutrients. S. acuminatus removed over 97.4% of ammonium and 99.9% of phosphate and sulfate from the digestates. Color (74–80%) and soluble COD (29–39%) of the digestates were partially removed. Different AD processes resulted in different methane yields (18–126 L CH4 kg−1 VS), digestate compositions, and microalgal yields. These findings emphasize the importance of optimizing each processing step in wood-based biorefineries and provide information for pulp and paper industry development for enhancing value generation.

AB - Different undiluted liquid digestates from mesophilic and thermophilic anaerobic digesters of pulp and paper industry biosludge with and without thermal pretreatment were characterized and utilized for cultivating Scenedesmus acuminatus. Higher S. acuminatus biomass yields were obtained in thermophilic digestates (without and with pretreatment prior to anaerobic digestion (AD): 10.2 ± 2.2 and 10.8 ± 1.2 g L−1, respectively) than in pretreated mesophilic digestates (7.8 ± 0.3 g L−1), likely due to differences in concentration of sulfate, iron, and/or other minor nutrients. S. acuminatus removed over 97.4% of ammonium and 99.9% of phosphate and sulfate from the digestates. Color (74–80%) and soluble COD (29–39%) of the digestates were partially removed. Different AD processes resulted in different methane yields (18–126 L CH4 kg−1 VS), digestate compositions, and microalgal yields. These findings emphasize the importance of optimizing each processing step in wood-based biorefineries and provide information for pulp and paper industry development for enhancing value generation.

KW - Digestate characteristics

KW - Microalgal growth

KW - Nutrient recovery

KW - Pulp and paper industry

KW - Wastewater treatment

U2 - 10.1016/j.biortech.2017.08.218

DO - 10.1016/j.biortech.2017.08.218

M3 - Article

VL - 245

SP - 706

EP - 713

JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

IS - A

ER -