Review on carbon dioxide fixation coupled with nutrients removal from wastewater by microalgae

Kong, Wenwen; Shen, Boxiong; Lyu, Honghong; Kong, Jia; Ma, Jun; Wang, Zhuozhi; Feng, Shuo

doi:10.1016/j.jclepro.2021.125975

Cited by 87 publications

(32 citation statements)

References 198 publications

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Section: Introductionmentioning

confidence: 99%

“…In recent years, climate problems and global warming, mainly caused by a large amount of CO 2 emissions from fossil fuel combustion, have become more and more serious, and it is urgent to reduce CO 2 emissions. , As known, it is an effective way to reduce CO 2 emissions by capturing CO 2 from fossil fuel combustion. At present, CO 2 capture is mainly achieved by alkaline chemical absorption liquids in industry. , However, this method is energy-intensive, corrosive to equipment, and difficult to regenerate and has poor reliability. − There is an urgent need for adsorbents with low cost, excellent adsorption and regeneration performance, and no corrosiveness to equipment.…”

Section: Introductionmentioning

confidence: 99%

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CO₂ Adsorption on N-Doped Porous Biocarbon Synthesized from Biomass Corncobs in Simulated Flue Gas

et al. 2023

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This study was to develop a low-cost N-doped porous biocarbon adsorbent that can directly adsorb CO2 in high-temperature flue gas from fossil fuel combustion. The porous biocarbon was prepared by nitrogen doping and nitrogen–oxygen codoping through K2CO3 activation. Results showed that these samples exhibited a high specific surface area of 1209–2307 m2/g with a pore volume of 0.492–0.868 cm3/g and a nitrogen content of 0.41–3.3 wt %. The optimized sample CNNK-1 exhibited a high adsorption capacity of 1.30 and 0.27 mmol/g in the simulated flue gas (14.4 vol % CO2 + 85.6 vol % N2) and a high CO2/N2 selectivity of 80 and 20 at 25 and 100 °C and 1 bar, respectively. Studies revealed that too many microporous pores could hinder CO2 diffusion and adsorption due to the decrease of CO2 partial pressure and thermodynamic driving force in the simulated flue gas. The CO2 adsorption of the samples was mainly chemical adsorption at 100 °C, which depended on the surface nitrogen functional groups. Nitrogen functional groups (pyridinic-N and primary and secondary amines) reacted chemically with CO2 to produce graphitic-N, pyrrolic-like structures, and carboxyl functional groups (−N–COOH). Nitrogen and oxygen codoping increased the amount of nitrogen doping content in the sample, but acidic oxygen functional groups (carboxyl groups, lactones, and phenols) were introduced, which weakened the acid–base interactions between the sample and CO2 molecules. It was demonstrated that SO2 and water vapor had inhibition effects on CO2 adsorption, while NO nearly has no effect on the complex flue gas. Cyclic regenerative adsorption showed that CNNK-1 possessed excellent regeneration and stabilization ability in complex flue gases, indicating that corncob-derived biocarbon had excellent CO2 adsorption in high-temperature flue gas.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

CO₂ Adsorption on N-Doped Porous Biocarbon Synthesized from Biomass Corncobs in Simulated Flue Gas

et al. 2023

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“…Many studies have been conducted to assess carbon dioxide fixation with microalgae cultivation activities [9,10]. Some of them used photobioreactors [11,12].…”

Section: Introductionmentioning

confidence: 99%

Microalgae Photobioreactor for Carbon Dioxide Fixation and Production of Biofuel Feedstock

Admirasari¹,

Rifai

Prayitno³

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Microalgae cultivation is considered fit to the concept of green economy, in which greenhouse gases (GHG’s) mitigation and production of valuable substances is performed simultaneously. Carbon dioxide consumption by the algal cells reduces GHG’s emission to the atmosphere, while biomass conversion to biofuel feedstock supports the concept of circular economy of microalgae cultivation process. In this study, Chlorella sp. was cultivated in a Multi Tubular Airlift Photobioreactor (MTAP) system with a total volume of about 600 L. The result of a thirteen days batch culture showed the ability of the system to fix 1.57 g CO2 L-1 day-1. At the last day of experiment, 600 L MTAP showed biomass production of 0.35 g L-1 and 18% oil from cell dry weight was observed. This research showed the ability of 600 L MTAP to absorb 942 g CO2 and produce 37.8 g oil as biofuel feedstock. Compared to other experiments, percentage of oil in this experiment (18% from cell dry weight) was in the average range from other experiments (of about 10 – 40% from cell dry weight). However, this MTAP showed higher performance than other systems (mostly below 1 g CO2 L-1 day-1) in CO2 fixation rate.

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“…8,16 In this article, a more comprehensive review describing the current advances in the algal conversion technologies to produce liquid, gaseous, and solid biofuels is presented. In addition, algae were also used for bioremediation, 17−20 CO 2 capture, 18,21,22 and food and nutraceuticals. 23−25 Together, an algae biorefinery system for valueadded bioproducts by combining CO 2 capture and bioremediation is proposed, as depicted in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

“…To the best of our knowledge, few articles discuss gaseous and solid biofuels from algae, and most of the conversion technologies discussed are conventional methods such as combustion, pyrolysis, and gasification. , In this article, a more comprehensive review describing the current advances in the algal conversion technologies to produce liquid, gaseous, and solid biofuels is presented. In addition, algae were also used for bioremediation, − CO 2 capture, ,, and food and nutraceuticals. − Together, an algae biorefinery system for value-added bioproducts by combining CO 2 capture and bioremediation is proposed, as depicted in Figure . Besides, it is well accepted that LCA is a robust approach to evaluate the associated impacts of each step involved in the algal processing on the environment.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Algae-Derived Biofuels and Bioactive Compounds

Feng

Kang

Salaudeen

et al. 2022

Ind. Eng. Chem. Res.

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Owing to the declining reserve of fossil resources as well as more concerns on climate change, and essential energy security, and especially the broad consensus on carbon neutralization, it is significantly critical to develop renewable and sustainable energy and chemicals. Algae as alternative resources can be applied to produce biofuels and biochemicals. Among them, algae-derived natural pigments exhibit high market value due to their uses in pharmaceutical and food industries. As a result of the developments of engineering tools, it is feasible to scale up algal processing and applications. Prior to the industrial implementation, life cycle assessment is required to ensure the environmental feasibility of algae-based biofuels and biochemicals. In this article, recent advances in processing algae for liquid, gas, and solid fuels are reviewed. New approaches for enhancing the natural pigment accumulation are also discussed. Recent studies on life cycle assessment of algae-based biofuels and biochemicals, as well as the main challenges faced by the algal biorefinery, are discussed in this manuscript.

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Review on carbon dioxide fixation coupled with nutrients removal from wastewater by microalgae

Cited by 87 publications

References 198 publications

CO₂ Adsorption on N-Doped Porous Biocarbon Synthesized from Biomass Corncobs in Simulated Flue Gas

CO₂ Adsorption on N-Doped Porous Biocarbon Synthesized from Biomass Corncobs in Simulated Flue Gas

Microalgae Photobioreactor for Carbon Dioxide Fixation and Production of Biofuel Feedstock

Recent Advances in Algae-Derived Biofuels and Bioactive Compounds

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Review on carbon dioxide fixation coupled with nutrients removal from wastewater by microalgae

Cited by 87 publications

References 198 publications

CO2 Adsorption on N-Doped Porous Biocarbon Synthesized from Biomass Corncobs in Simulated Flue Gas

CO2 Adsorption on N-Doped Porous Biocarbon Synthesized from Biomass Corncobs in Simulated Flue Gas

Microalgae Photobioreactor for Carbon Dioxide Fixation and Production of Biofuel Feedstock

Recent Advances in Algae-Derived Biofuels and Bioactive Compounds

Contact Info

Product

Resources

About

CO₂ Adsorption on N-Doped Porous Biocarbon Synthesized from Biomass Corncobs in Simulated Flue Gas

CO₂ Adsorption on N-Doped Porous Biocarbon Synthesized from Biomass Corncobs in Simulated Flue Gas