Integration of wastewater treatment and flocculation for harvesting biomass for lipid production by a newly isolated self-flocculating microalga Scenedesmus rubescens SX

Lv, Junping; Guo, Baowen; Feng, Jia; Liu, Qi; Nan, Fangru; Li, Xudong; Xie, Shulian

doi:10.1016/j.jclepro.2019.118211

Cited by 30 publications

(21 citation statements)

References 58 publications

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“…Studies have reported that autoflocculating microalgae like, Scenedesmus obliquus AS-6−1 , Scenedesmus rubescens SX, Ankistrodesmus falcatus, Tetraselmis suecica, have considerable potential to flocculate the non-flocculating microalgae and therefore could be employed as bioflocculant [ 52 , 53 , 49 ]. The bioflocculation potential of microalgal strain Scenedesmus sp.…”

Section: Resultsmentioning

confidence: 99%

Identification, characterization, and lipid profiling of microalgae Scenedesmus sp. NC1, isolated from coal mine effluent with potential for biofuel production

Kumar

Banerjee

Jagadevan

2021

Biotechnology Reports

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Section: Resultsmentioning

confidence: 99%

Identification, characterization, and lipid profiling of microalgae Scenedesmus sp. NC1, isolated from coal mine effluent with potential for biofuel production

Kumar

Banerjee

Jagadevan

2021

Biotechnology Reports

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“…These cells secrete synthetic glycosides or polysaccharides and other active substances to their surface. The interaction among the surrounding microalgae cells leads to the auto-aggregation and auto-flocculation of microalgae cells [72]. For these microalgae cells, the chemical additive is needless in the harvesting process.…”

Section: Flocculationmentioning

confidence: 99%

A Review of Energy Consumption in the Acquisition of Bio-Feedstock for Microalgae Biofuel Production

Chen

Zhang

2021

Sustainability

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Microalgae biofuel is expected to be an ideal alternative to fossil fuels to mitigate the effects of climate change and the energy crisis. However, the production process of microalgae biofuel is sometimes considered to be energy intensive and uneconomical, which limits its large-scale production. Several cultivation systems are used to acquire feedstock for microalgal biofuels production. The energy consumption of different cultivation systems is different, and the concentration of culture medium (microalgae cells contained in the unit volume of medium) and other properties of microalgae vary with the culture methods, which affects the energy consumption of subsequent processes. This review compared the energy consumption of different cultivation systems, including the open pond system, four types of closed photobioreactor (PBR) systems, and the hybrid cultivation system, and the energy consumption of the subsequent harvesting process. The biomass concentration and areal biomass production of every cultivation system were also analyzed. The results show that the flat-panel PBRs and the column PBRs are both preferred for large-scale biofuel production for high biomass productivity.

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“…The harvesting efficiency of self-flocculating microalgae will change with different flocculating conditions. For example, nutrient composition (N, P, Ca 2+ content) in the culture medium will have a certain influence on the self-flocculation of microalgae cells [15]. Table 1 lists the harvesting efficiency of some self-flocculating algae species.…”

Section: Self-flocculation Harvesting Efficiencymentioning

confidence: 99%

Self-Flocculation as an Efficient Method to Harvest Microalgae: A Mini-Review

Zhu

2021

Water

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The development of clean and renewable biofuels has been of wide concern on the topic of energy and environmental issues. As a kind of biomass energy with great application prospects, microalgae have many advantages and are used in the fields of environmental protection and biofuels as well as food or feed production for humans and animals. However, the high cost of microalgae harvesting is the main bottleneck of industrial production on a large scale. Self-flocculation is a cost-efficient and promising method for harvesting microalgal biomass. This article briefly describes the current commonly used technology for microalgae harvesting, focusing on the research progress of self-flocculation. This article explores the relative mechanisms and influencing factors of self-flocculation and discusses a proposal for the integration of algae cultivation and harvesting as well as the co-cultivation of algae and bacteria in an effort to provide a reference for microalgae harvesting with high efficiency and low cost.

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Integration of wastewater treatment and flocculation for harvesting biomass for lipid production by a newly isolated self-flocculating microalga Scenedesmus rubescens SX

Cited by 30 publications

References 58 publications

Identification, characterization, and lipid profiling of microalgae Scenedesmus sp. NC1, isolated from coal mine effluent with potential for biofuel production

Identification, characterization, and lipid profiling of microalgae Scenedesmus sp. NC1, isolated from coal mine effluent with potential for biofuel production

A Review of Energy Consumption in the Acquisition of Bio-Feedstock for Microalgae Biofuel Production

Self-Flocculation as an Efficient Method to Harvest Microalgae: A Mini-Review

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