Microalgae biomass harvesting by bioflocculation-interpretation by classical DLVO theory

Ndikubwimana, Theoneste; Zeng, Xianhai; He, Ning; Xiao, Zongyuan; Xie, Youping; Chang, Jo Shu; Lin, Lu; Lu, Yinghua

doi:10.1016/j.bej.2015.05.010

Cited by 72 publications

(32 citation statements)

References 42 publications

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“…; Ndikubwimana et al . ). According to the XDLVO theory, the total energy of interaction of two surfaces is comprised of three forces: (i) Lifshitz–Van de Waals (LVW), (ii) acid–base (AB) and (iii) electrostatic (EL).…”

Section: Chemical and Physical–chemical Methodsmentioning

confidence: 97%

“…When a flocculant acts as a bridge between cells, the mechanism is called ‘bridging,’ but if the entire cell surface is covered, then it is named ‘patching’ (Ndikubwimana et al . ). ‘Netting’ stands for the process of entrapment in a floccule.…”

Section: Chemical and Physical–chemical Methodsmentioning

confidence: 97%

“…; Li & Pan ; Ndikubwimana et al . ; Wang et al . ), although different terminology has been used so far.…”

Section: Chemical and Physical–chemical Methodsmentioning

confidence: 99%

See 2 more Smart Citations

A critical review on control methods for harmful algal blooms

Gallardo

Astuya-Villalón

Llanos-Rivera

et al. 2018

Reviews in Aquaculture

103

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The impacts of harmful algal blooms on human health, tourism, fisheries and ecosystems have increased in recent decades. Eutrophication and the feared climate change are believed to further challenge authorities and those whose activity depends on coastal resources. While in most of the affected countries, regulatory steps have been taken to protect consumers of contaminated food, there has been an unequal focus on management systems. Some countries such as EEUU and Canada have focused on monitoring and prediction programs, whereas others (e.g. Korea, China) have relied on direct control of blooms in the sea. Here, we review current control methods for HABs including their fundamentals and the last scientific advances. A thorough revision of all considered approaches so far has been included. Ecological studies of the impact of the countermeasures were also considered.

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Section: Chemical and Physical–chemical Methodsmentioning

confidence: 97%

Section: Chemical and Physical–chemical Methodsmentioning

confidence: 97%

See 1 more Smart Citation

A critical review on control methods for harmful algal blooms

Gallardo

Astuya-Villalón

Llanos-Rivera

et al. 2018

Reviews in Aquaculture

103

View full text Add to dashboard Cite

show abstract

“…The most common biological separation approach is bioflocculation because the microalga dewatering costs under this technique can be reduced, no chemical costs are involved, and the process requires lower energy consumption. For example, microbial flocculants can be used for this purpose due to their high harvesting efficiency and biodegradability …”

Section: Main Steps That Should Be Considered To Develop Cleaner Techmentioning

confidence: 99%

Microalgae and Clean Technologies: A Review

Souza

Hoeltz

Benitez

et al. 2019

CLEAN Soil Air Water

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The search for clean technologies needs to be continued to offer alternatives for achieving sustainable energy production and a sustainable economy. This concern is particularly related to the demands of both producing enough renewable energy to meet future needs and reducing greenhouse gas (GHG) emissions. Microalgae are recognized for several benefits they offer, and in recent years, the use of life cycle assessment (LCA) to evaluate the benefits resulting from microalgae cultivation, harvesting/dewatering, biomass drying, extraction, and byproduct development has stimulated research in this area. Considering the importance of microalgae and clean technologies and the increasing number of publications on these subjects, this review aims to perform bibliometric mapping of such studies from 2008 to 2018. Web of Science and Scopus databases are used to identify leading trends. Visualization of similarities viewer (VOSviewer) software is applied to analyze the interactions among keywords. The results of this study indicate an association of microalgae and clean technologies and demonstrate that LCA is one of the most common tools used for such analyses. Bibliometric mapping provides relevant data to reinforce this association and understand the main bottlenecks that must be overcome in this field for future progress to be made.

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“…Coagulation-flocculation could also be used to harvest some microalgae. Bio-based coagulants (e.g., chitosan, poly γ-glutamic acid and rice starch) have been found effective in harvesting freshwater microalgae [104][105][106]. Since the marine microalgae cultures usually have much higher ionic strength compared to that of freshwater cultures, these organic coagulants are often less effective for harvesting marine microalgae; polyvalent metal coagulants (e.g., alum, ferric chloride) are often used to harvest marine microalgae.…”

Section: Challenges In Large-scale Cultivation Of Microalgaementioning

confidence: 99%

Sustainable Agriculture in the Arabian/Persian Gulf Region Utilizing Marginal Water Resources: Making the Best of a Bad Situation

2018

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One way to encourage agricultural self-sufficiency in arid regions is to increase the productivity of conventional freshwater agriculture. Another way is to develop and implement novel strategies and technologies that do not deplete scarce freshwater. Here we describe several options for countries in the Gulf region to increase their agricultural production by taking advantage of a lesser used resource-marginal water. Marginal water can be treated sewage effluent, produced oilfield water, brackish groundwater or seawater. We describe how this resource can be used to grow salt-tolerant forage crops, microalgae and aquaculture crops. Policies needed to implement and/or scale-up such practices are also outlined.

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Microalgae biomass harvesting by bioflocculation-interpretation by classical DLVO theory

Cited by 72 publications

References 42 publications

A critical review on control methods for harmful algal blooms

A critical review on control methods for harmful algal blooms

Microalgae and Clean Technologies: A Review

Sustainable Agriculture in the Arabian/Persian Gulf Region Utilizing Marginal Water Resources: Making the Best of a Bad Situation

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