Cultivation of microalgae on liquid anaerobic digestate for depollution, biofuels and cosmetics: a review

Ahmed  Tawfik; Mohamed  Eraky; Nawaf S.  Alhajeri; Ahmed I. Osman; David W. Rooney

doi:10.1007/s10311-022-01481-2

Cultivation of microalgae on liquid anaerobic digestate for depollution, biofuels and cosmetics: a review

Ahmed Tawfik^*
, Mohamed Eraky
, Nawaf S. Alhajeri
, Ahmed I. Osman ^*
, David W. Rooney^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

109 Citations (Scopus)

475 Downloads (Pure)

Abstract

Solid wastes from domestic, industrial and agricultural sectors cause acute economic and environmental problems. These issues can be partly solved by anaerobic digestion of wastes, yet this process is incomplete and generates abundant byproducts as digestate. Therefore, cultivating mixotrophic algae on anaerobic digestate appears as a promising solution for nutrient recovery, pollutant removal and biofuel production. Here we review mixotrophic algal cultivation on anaerobic waste digestate with focus on digestate types and characterization, issues of recycling digestate in agriculture, removal of contaminants, and production of biofuels such as biogas, bioethanol, biodiesel and dihydrogen. We also discuss applications in cosmetics and economical aspects. Mixotrophic algal cultivation completely removes ammonium, phosphorus, 17β-estradiol from diluted digestate, and removes 62% of zinc, 84% of manganese, 74% of cadmium and 99% of copper.

Original language	English
Pages (from-to)	3631–3656
Number of pages	26
Journal	Environmental Chemistry Letters
Volume	20
Issue number	6
Early online date	26 Jul 2022
DOIs	https://doi.org/10.1007/s10311-022-01481-2
Publication status	Published - Dec 2022

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 8 Decent Work and Economic Growth
SDG 12 Responsible Consumption and Production
SDG 13 Climate Action

Keywords

Climate Change
Algae
anaerobic digestion
anaerobic digestate
Heavy metal
Pollutants
circular economy
Circular bioeconomy
net zero
algae cultivation

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10.1007/s10311-022-01481-2Licence: CC BY

Cultivation of microalgae on liquid anaerobic digestate for depollution, biofuels and cosmetics: a review
Copyright 2022 the authors. This is an open access article published under a Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
Final published version, 1.49 MBLicence: CC BY

Cite this

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title = "Cultivation of microalgae on liquid anaerobic digestate for depollution, biofuels and cosmetics: a review",

abstract = "Solid wastes from domestic, industrial and agricultural sectors cause acute economic and environmental problems. These issues can be partly solved by anaerobic digestion of wastes, yet this process is incomplete and generates abundant byproducts as digestate. Therefore, cultivating mixotrophic algae on anaerobic digestate appears as a promising solution for nutrient recovery, pollutant removal and biofuel production. Here we review mixotrophic algal cultivation on anaerobic waste digestate with focus on digestate types and characterization, issues of recycling digestate in agriculture, removal of contaminants, and production of biofuels such as biogas, bioethanol, biodiesel and dihydrogen. We also discuss applications in cosmetics and economical aspects. Mixotrophic algal cultivation completely removes ammonium, phosphorus, 17β-estradiol from diluted digestate, and removes 62\% of zinc, 84\% of manganese, 74\% of cadmium and 99\% of copper. ",

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author = "Ahmed Tawfik and Mohamed Eraky and Alhajeri, \{Nawaf S.\} and Osman, \{Ahmed I.\} and Rooney, \{David W.\}",

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T1 - Cultivation of microalgae on liquid anaerobic digestate for depollution, biofuels and cosmetics: a review

AU - Tawfik, Ahmed

AU - Eraky, Mohamed

AU - Alhajeri, Nawaf S.

AU - Osman , Ahmed I.

AU - Rooney, David W.

PY - 2022/12

Y1 - 2022/12

N2 - Solid wastes from domestic, industrial and agricultural sectors cause acute economic and environmental problems. These issues can be partly solved by anaerobic digestion of wastes, yet this process is incomplete and generates abundant byproducts as digestate. Therefore, cultivating mixotrophic algae on anaerobic digestate appears as a promising solution for nutrient recovery, pollutant removal and biofuel production. Here we review mixotrophic algal cultivation on anaerobic waste digestate with focus on digestate types and characterization, issues of recycling digestate in agriculture, removal of contaminants, and production of biofuels such as biogas, bioethanol, biodiesel and dihydrogen. We also discuss applications in cosmetics and economical aspects. Mixotrophic algal cultivation completely removes ammonium, phosphorus, 17β-estradiol from diluted digestate, and removes 62% of zinc, 84% of manganese, 74% of cadmium and 99% of copper.

AB - Solid wastes from domestic, industrial and agricultural sectors cause acute economic and environmental problems. These issues can be partly solved by anaerobic digestion of wastes, yet this process is incomplete and generates abundant byproducts as digestate. Therefore, cultivating mixotrophic algae on anaerobic digestate appears as a promising solution for nutrient recovery, pollutant removal and biofuel production. Here we review mixotrophic algal cultivation on anaerobic waste digestate with focus on digestate types and characterization, issues of recycling digestate in agriculture, removal of contaminants, and production of biofuels such as biogas, bioethanol, biodiesel and dihydrogen. We also discuss applications in cosmetics and economical aspects. Mixotrophic algal cultivation completely removes ammonium, phosphorus, 17β-estradiol from diluted digestate, and removes 62% of zinc, 84% of manganese, 74% of cadmium and 99% of copper.

KW - Climate Change

KW - Algae

KW - anaerobic digestion

KW - anaerobic digestate

KW - Heavy metal

KW - Pollutants

KW - circular economy

KW - Circular bioeconomy

KW - net zero

KW - algae cultivation

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DO - 10.1007/s10311-022-01481-2

M3 - Article

SN - 1610-3661

VL - 20

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EP - 3656

JO - Environmental Chemistry Letters

JF - Environmental Chemistry Letters

IS - 6

ER -

Cultivation of microalgae on liquid anaerobic digestate for depollution, biofuels and cosmetics: a review

Abstract

UN SDGs

Keywords

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