Pilot-scale continuous recycling of growth medium for the mass culture of a halotolerant Tetraselmis sp. in raceway ponds under increasing salinity: A novel protocol for commercial microalgal biomass production

Sing, Sophie Fon; Isdepsky, Andreas; Borowitzka, Michael A.; Lewis, David M.

doi:10.1016/j.biortech.2014.03.010

Cited by 125 publications

(33 citation statements)

References 32 publications

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“…Reference values for raceway ponds, sloped ponds and thin-layer cascades are 5-6 L m -2 day -1 [25,104]. In very dry climates such as Kuwait or Western Australia, raceway ponds and thin-layer cascades reached evaporation rates of up to 20 L m -2 day -1 [105,106]. A theoretical calculation of evaporation rates for given environmental conditions is possible [107].…”

Section: Influence Of Weathermentioning

confidence: 99%

“…To keep the cultivation volume constant, evaporated water needs to be replenished regularly or continuously. The concomitant increase of substance concentrations in the cultivation medium-especially salinity when cultivating with seawater or brackish water [105]-necessitates a total harvest followed by a culture restart using fresh medium when a critical concentration of a medium component has been reached. By sophisticated process design using blowdown and adapted nutrient feeding, the time until a necessary culture restart can be extended significantly [101,104,108,109].…”

Section: Influence Of Weathermentioning

confidence: 99%

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Engineering solutions for open microalgae mass cultivation and realistic indoor simulation of outdoor environments

Apel

Weuster‐Botz

2015

Bioprocess Biosyst Eng

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Microalgae could become an important renewable source for chemicals, food, and energy if process costs can be reduced. In the past 60 years, relevant factors in open outdoor mass cultivation of microalgae were identified and elaborate solutions regarding bioprocesses and bioreactors were developed. An overview of these solutions is presented. Since the cost of most microalgal products from current mass cultivation systems is still prohibitively high, further development is required. The application of complex computational techniques for cost-effective process and reactor development will become more important if experimental validation of simulation results can easily be achieved. Due to difficulties inherent to outdoor experimentation, it can be useful to conduct validation experiments indoors. Considerations and approaches for realistic indoor reproduction of the most important environmental conditions in microalgae cultivation experiments-light, temperature, and substance concentrations, are discussed.

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Section: Influence Of Weathermentioning

confidence: 99%

Section: Influence Of Weathermentioning

confidence: 99%

Engineering solutions for open microalgae mass cultivation and realistic indoor simulation of outdoor environments

Apel

Weuster‐Botz

2015

Bioprocess Biosyst Eng

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“…Some potential halophilic microalgae (e.g., Tetraselmis sp., Dunaliella sp.) have the ability to adapt to incremental salinity in culture and therefore the evaporative water loss can be balanced by adding seawater [85,101,102]. Coastal areas are an ideal place for the cultivation of microalgae as the collection and pumping of seawater would require minimal energy.…”

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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“…It can affect the growth and cell composition of microalgae by osmotic changes, ion (salt) stress, and changes of the cellular ionic ratios due to the membrane selective ion permeability (Fon Sing et al, 2014). The simplest way to solve the problem is to add extra freshwater or salt as necessary.…”

Section: Salinitymentioning

confidence: 99%

Challenges and Perspectives on Carbon Fixation and Utilization Technologies: An Overview

Ping

Pan

Pei

et al. 2016

Aerosol Air Qual. Res.

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This paper provides an overview of state-of-the-art carbon fixation and utilization technologies. Several carbon capture processes, such as chemical absorption and chemical looping, are reviewed and illustrated. In addition, various types of chemicals and fuels that can be produced using concentrated CO 2 (or other forms) through physical, chemical, or enhanced biological methods are presented. Among those carbon conversion methods, two promising approaches, i.e., microalgae ponds and accelerated carbonation using alkaline solid wastes, are reviewed in detail. Microalgae are fast-growing and ubiquitous photosynthetic organisms, which are rich in protein and can be converted to biodiesel fuel. They have been recognized as an alternative feedstock not only because they use CO 2 from the atmosphere but also due to their high lipid content per biomass compared to other plants. In this study, for the microalgae technologies, the principles and applications of open pond systems are discussed in terms of both technological and economic considerations. The important operation parameters affecting productivity of microalgae, including light intensity, temperature, mixing, CO 2 delivery, accumulation of dissolved oxygen, and salinity are summarized. On the other hand, accelerated carbonation technologies are an attractive and feasible approach to integrating alkaline solid waste treatment with CO 2 fixation and utilization. In this study, the performance of various carbonation processes is critically reviewed from the perspectives of process design, energy consumption, and environmental benefits. The carbonated solid product can also be used as supplementary cementitious materials in a blended cement or concrete block. Accordingly, the performance of cement pastes with carbonated product, in terms of workability and strength development, are evaluated from the cement chemistry point of view. Cement manufacturing is an energy and material intensive process, with high annual production. It is noted that, through the accelerated carbonation process, significant indirect environmental benefits can be realized.

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Pilot-scale continuous recycling of growth medium for the mass culture of a halotolerant Tetraselmis sp. in raceway ponds under increasing salinity: A novel protocol for commercial microalgal biomass production

Cited by 125 publications

References 32 publications

Engineering solutions for open microalgae mass cultivation and realistic indoor simulation of outdoor environments

Engineering solutions for open microalgae mass cultivation and realistic indoor simulation of outdoor environments

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

Challenges and Perspectives on Carbon Fixation and Utilization Technologies: An Overview

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