Sustainable microalgal biomass valorization to bioenergy: Key challenges and future perspectives

Tawfik Ahmed; Ismail Sherif; Elsayed MahdyQyyum Muhammad AbdulRehan Mohammad

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Sustainable microalgal biomass valorization to bioenergy: Key challenges and future perspectives

机译：Sustainable microalgal biomass valorization to bioenergy: Key challenges and future perspectives

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The global trend is shifting toward circular economy systems. It is a sustainable environmental approach that sustains economic growth from the use of resources while minimizing environmental impacts. The multiple industrial use of microalgal biomass has received great attention due to its high content of essential nutrients and elements. Nevertheless, low biomass productivity, unbalanced carbon to nitrogen (C/N) ratio, resistant cellular constituents, and the high cost of microalgal harvesting represent the major obstacles for valorization of algal biomass. In recent years, microalgae biomass has been a candidate as a potential feedstock for different bioenergy generation processes with simultaneous treating wastewater and CO2 capture. An overview of the appealing features and needed advancements is urgently essential for microalgae-derived bioenergy generation. The present review provides a timely outlook and evaluation of biomethane production from microalgal biomass and related challenges. Moreover, the biogas recovery potential from microalgal biomass through different pretreatments and synergistic anaerobic co-digestion (AcoD) with other biowastes are evaluated. In addition, the removal of micropollutants and heavy metals by microalgal cells via adsorption and bioaccumulation in their biomass is discussed. Herein, a comprehensive review is presented about a successive high-throughput for anaerobic digestion (AD) of the microalgal biomass in order to achieve for sustainable energy source. Lastly, the valorization of the digestate from AD of microalgae for agricultural reuse is highlighted.

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《Chemosphere》 |2022年第6期|133812.1-133812.16|共16页
作者
Tawfik Ahmed; Ismail Sherif; Elsayed MahdyQyyum Muhammad AbdulRehan Mohammad;
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作者单位

Natl Res Ctr, Water Pollut Res Dept, Giza 12622, Egypt;

Zagazig Univ, Environm Engn Dept, Zagazig 44519, Egypt;

Cairo Univ, Fac Agr, Agr Engn Dept, Giza 12613, EgyptSultan Qaboos Univ, Dept Petr & Chem Engn, Muscat, OmanKing Abdulaziz Univ, Ctr Excellence Environm Studies CEES, Jeddah, Saudi Arabia;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
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Biomethane production; Microalgal biomass; Valorization; Anaerobic digestion;

Sustainable microalgal biomass valorization to bioenergy: Key challenges and future perspectives

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