Liquid fraction of digestate pretreated with membrane filtration for cultivation of Chlorella vulgaris

Copyright © 2022 The Authors. Published by Elsevier Ltd.. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Waste management (New York, N.Y.). - 1999. - 146(2022) vom: 01. Juni, Seite 1-10
1. Verfasser: Zielińska, Magdalena (VerfasserIn)
Weitere Verfasser: Rusanowska, Paulina, Zieliński, Marcin, Dudek, Magda, Kazimierowicz, Joanna, Quattrocelli, Piera, Dębowski, Marcin
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Waste management (New York, N.Y.)
Schlagworte:Journal Article Ceramic membranes Liquid fraction of digestate Microalgae pH changes Ammonium Compounds Waste Water Ammonia 7664-41-7
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520 |a Copyright © 2022 The Authors. Published by Elsevier Ltd.. All rights reserved. 
520 |a To make microalgae cultivation economically feasible, different waste streams that may serve as cultivation media are being searched for. The aim of this study was membrane filtration of the liquid fraction of digestate (LFD) to produce permeate that will be an effective medium for the cultivation of Chlorella vulgaris. Microfiltration (MF) and ultrafiltration (UF) with ceramic membranes were used in one- and two-stage systems at transmembrane pressures (TMP) of 0.2, 0.3, and 0.4 MPa. The hydraulic capacities of the membrane modules allowed MF at 0.2 MPa to be selected as the most feasible variant of the one-stage variants. The use of MF permeates for microalgae cultivation resulted in the highest biomass yield, due to optimum pH (about 8.8), low color, and high nutrient concentration (about 290 mg/dm3 of ammonium and about 22 mg/dm3 of orthophosphates). The high pH (about 9.7) of the UF permeates, which increased the concentration of free ammonia, reduced microalgae growth by 50% compared to the growth noted with the MF permeates. Due to the low nutrient concentration, the use of permeates from the two-stage systems resulted in microalgae growth more than two times lower than the use of MF permeates. Mathematical modeling indicated that the component of the cultivation medium that most significantly affected microalgae growth was the initial ammonium concentration 
650 4 |a Journal Article 
650 4 |a Ceramic membranes 
650 4 |a Liquid fraction of digestate 
650 4 |a Microalgae 
650 4 |a pH changes 
650 7 |a Ammonium Compounds  |2 NLM 
650 7 |a Waste Water  |2 NLM 
650 7 |a Ammonia  |2 NLM 
650 7 |a 7664-41-7  |2 NLM 
700 1 |a Rusanowska, Paulina  |e verfasserin  |4 aut 
700 1 |a Zieliński, Marcin  |e verfasserin  |4 aut 
700 1 |a Dudek, Magda  |e verfasserin  |4 aut 
700 1 |a Kazimierowicz, Joanna  |e verfasserin  |4 aut 
700 1 |a Quattrocelli, Piera  |e verfasserin  |4 aut 
700 1 |a Dębowski, Marcin  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Waste management (New York, N.Y.)  |d 1999  |g 146(2022) vom: 01. Juni, Seite 1-10  |w (DE-627)NLM098197061  |x 1879-2456  |7 nnns 
773 1 8 |g volume:146  |g year:2022  |g day:01  |g month:06  |g pages:1-10 
856 4 0 |u http://dx.doi.org/10.1016/j.wasman.2022.04.043  |3 Volltext 
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