Selection of a separation method used for harvesting of microalgae from aqueous solutions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F21%3A00350192" target="_blank" >RIV/68407700:21220/21:00350192 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.3303/CET2186027" target="_blank" >https://doi.org/10.3303/CET2186027</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3303/CET2186027" target="_blank" >10.3303/CET2186027</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Selection of a separation method used for harvesting of microalgae from aqueous solutions

Popis výsledku v původním jazyce

Harvesting of microalgae from aqueous solutions is still a bottleneck for biotechnologies using microalgae as a source of metabolites. The aim of the article is to provide an overview of four microalgae separation methods and highlight their core advantages, disadvantages, efficiencies and energy and economy requirements for various concentrations of microalgae suspensions and different microalgae strains. These four separation methods are centrifugation, coagulation/flocculation, flotation and membrane technologies. Possible optimizations of the separation methods inducing more effective harvesting are proposed as well. Based on the data included in the article, final conclusions are presented and the separation methods are compared. Flotation harvesting efficiency is more than 75 % when chemicals enhancing the process are applied. Harvesting efficiency of coagulation and flocculation achieves more than 80 %. Harvesting efficiency of membrane technologies and centrifugation is more than 90 %. The energy requirements are in the range of 0.07 to 11.1 kWh m-3 of the permeate or microalgal suspension volume and 0.09 to 9.5 kWh kg-1 of the dry weight of harvested biomass, depending on the separation method.

Název v anglickém jazyce

Selection of a separation method used for harvesting of microalgae from aqueous solutions

Popis výsledku anglicky

Harvesting of microalgae from aqueous solutions is still a bottleneck for biotechnologies using microalgae as a source of metabolites. The aim of the article is to provide an overview of four microalgae separation methods and highlight their core advantages, disadvantages, efficiencies and energy and economy requirements for various concentrations of microalgae suspensions and different microalgae strains. These four separation methods are centrifugation, coagulation/flocculation, flotation and membrane technologies. Possible optimizations of the separation methods inducing more effective harvesting are proposed as well. Based on the data included in the article, final conclusions are presented and the separation methods are compared. Flotation harvesting efficiency is more than 75 % when chemicals enhancing the process are applied. Harvesting efficiency of coagulation and flocculation achieves more than 80 %. Harvesting efficiency of membrane technologies and centrifugation is more than 90 %. The energy requirements are in the range of 0.07 to 11.1 kWh m-3 of the permeate or microalgal suspension volume and 0.09 to 9.5 kWh kg-1 of the dry weight of harvested biomass, depending on the separation method.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

<a href="/cs/project/EF16_019%2F0000753" target="_blank" >EF16_019/0000753: Centrum výzkumu nízkouhlíkových energetických technologií</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

CHEMICAL ENGINEERING TRANSACTIONS

ISSN

2283-9216

e-ISSN

2283-9216

Svazek periodika

86

Číslo periodika v rámci svazku

027

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

6

Strana od-do

157-162

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85109505173