Microalgal capture of carbon dioxide: A carbon sink or source?

被引：14

作者：

Zhang, Xiaoyuan ^{[1
,2
]}

An, Lei ^{[1
]}

Tian, Junli ^{[1
]}

Ji, Bin ^{[3
]}

Lu, Jinfeng ^{[1
,2
]}

Liu, Yu ^{[1
,2
]}

机构：

[1] Nankai Univ, Coll Environm Sci & Engn, Engn Lab Low Carbon Unconvent Water Resources Util, Tianjin 300350, Peoples R China

[2] Nankai Univ, Minist Educ, Key Lab Pollut Proc & Environm Criteria, Tianjin 300350, Peoples R China

[3] Wuhan Univ Sci & Technol, Sch Urban Construct, Dept Water & Wastewater Engn, Wuhan 430065, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2023年 / 390卷

基金：

中国国家自然科学基金;

关键词：

Microalgae; Carbon capture; Carbon dioxide emission; Ammonia; Biofertilizer; ANAEROBIC-DIGESTION; BIOREFINERY; ENERGY; CULTIVATION; BIOMASS; COMMERCIALIZATION; CONSTRAINTS; YIELDS;

D O I：

10.1016/j.biortech.2023.129824

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The rapidly evolving global warming is triggering all levels of actions to reduce industrial carbon emissions, while capturing carbon dioxide of industrial origin via microalgae has attracted increasing attention. This article attempted to offer preliminary analysis on the carbon capture potential of microalgal cultivation. It was shown that the energy consumption-associated with operation and nutrient input could significantly contribute to indirect carbon emissions, making the microalgal capture of carbon dioxide much less effective. In fact, the current microalgae processes may not be environmentally sustainable and economically viable in the scenario where the carbon footprints of both upstream and downstream processing are considered. To address these challenging issues, renewable energy (e.g., solar energy) and cheap nutrient source (e.g., municipal wastewater) should be explored to cut off the indirect carbon emissions of microalgae cultivation, meanwhile produced microalgae, without further processing, should be ideally used as biofertilizer or aquafeeds for realizing complete nutrients recycling.

引用

页数：9