Cultivation in wastewaters for energy: A microalgae platform

Cheah, Wai Yan; Ling, Tau Chuan; Show, Pau Loke; Juan, Joon Ching; Chang, Jo Shu; Lee, Dong Hoon

doi:10.1016/j.apenergy.2016.07.015

Cited by 169 publications

(55 citation statements)

References 116 publications

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“…An attractive process solution for municipal waste water treatment plants is 30 to utilize algae for cleaning the water and in the same time produce biomass that can be 31 used for energy utilization [2][3][4]. Theoretical calculations based on stoichiometric 32 balancing show a potential of almost 20% higher methane production per reduced N for 33 a microalgae based waste water treatment plant compared to the traditional activated 34 sludge process [2] when utilizing the microalgae biomass for biogas production by 35 anaerobic digestion.…”

Section: Introductionmentioning

confidence: 99%

Co-digestion of sewage sludge and microalgae – Biogas production investigations

et al. 2018

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Section: Introductionmentioning

confidence: 99%

Co-digestion of sewage sludge and microalgae – Biogas production investigations

et al. 2018

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“…Their carbohydrate content may be used to produce fermentative bioethanol and biobutanol, whereas their lipid content has a potential for biodiesel production. Gaseous biofuels like biomethane and biohydrogen can also be derived from microalgae or even their residues, after lipid extraction and ethanol fermentation (Cheah et al, 2016a). Microalgae species like Chlamydomonas sp., Chlorella sp., Spirulina sp., Spirogyra sp., and Dunaliella sp.…”

Section: Microalgaementioning

confidence: 99%

“…The increasing global demands for fossil fuels and their widespread consumption, leading to environmental degradation, have been of major concerns. More specifically, the world-wide energy consumption is estimated to increase by 49% from 2007 to 2035, alongside the growth in economy, expanding population, and social pressure (Cheah et al, 2016a;Prasad et al, 2016). India and China account for a major proportion of this drastic increase .…”

Section: Introductionmentioning

confidence: 99%

Pretreatment methods for lignocellulosic biofuels production: current advances, challenges and future prospects

et al. 2020

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Keywords:Lignocellulosic biomass has been recognized as promising feedstock for biofuels production. However, the high cost of pretreatment is one of the major challenges hindering large-scale production of biofuels from these abundant, indigenouslyavailable, and economic feedstock. In addition to high capital and operation cost, high water consumption is also regarded as a challenge unfavorably affecting the pretreatment performance. In the present review, advances in lignocellulose pretreatment technologies for biofuels production are reviewed and critically discussed. Moreover, the challenges faced and future research needs are addressed especially in optimization of operating parameters and assessment of total cost of biofuel production from lignocellulose biomass at large scale by using different pretreatment methods. Such information would pave the way for industrial-scale lignocellulosic biofuels production. Overall, it is important to ensure that throughout lignocellulosic bioethanol production processes, favorable features such as maximal energy saving, waste recycling, wastewater recycling, recovery of materials, and biorefinery approach are considered.

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“…A number of previous studies have demonstrated the potential for algal assimilation of inorganic nitrogen to decrease TN concentrations in wastewater, although rates of removal can vary widely by algae species/waste stream. There is also a significant lack of knowledge regarding the nutrient removal capabilities of algae species best suited for biodiesel production (Cai et al 2013;Cheah et al 2016). Based on results reported in Cho et al (2011), it is assumed that algae production reduces the TN concentration of wastewater by 1.25 mg=L-day in a 4-day batch treatment.…”

Section: Lca/tea Modelmentioning

confidence: 99%

Multiobjective Optimal Siting of Algal Biofuel Production with Municipal Wastewater Treatment in Watersheds with Nutrient Trading Markets

Kern

Gorelick²,

Characklis

et al. 2019

J. Water Resour. Plann. Manage.

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Using municipal wastewater effluent as a feedstock in algae cultivation is a promising approach for increasing the commercial viability of algal biofuel production. However, differences in site-specific characteristics at municipal wastewater treatment plants (WWTPs) could drive tradeoffs between maximizing the profitability of algae production and minimizing the cost of meeting water quality standards. A complicating factor is how water quality regulations are enforced, namely the potential presence of nutrient trading markets that would monetize removal of nutrients from wastewater effluent. This study develops an analytical framework for optimizing the siting of an algal biofuel production facility within a network of WWTPs. A combined life cycle assessment (LCA) and techno-economic analysis (TEA) model of an algal biofuel production facility is integrated with a simplified watershed model. An evolutionary algorithm is used to identify optimal sites for algal biofuel production and explore financial tradeoffs for algae biofuel producers and wastewater treatment plants. This analytical framework is then applied to a high-priority, impaired watershed in North Carolina, the Neuse River Basin.

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Cultivation in wastewaters for energy: A microalgae platform

Cited by 169 publications

References 116 publications

Co-digestion of sewage sludge and microalgae – Biogas production investigations

Co-digestion of sewage sludge and microalgae – Biogas production investigations

Pretreatment methods for lignocellulosic biofuels production: current advances, challenges and future prospects

Multiobjective Optimal Siting of Algal Biofuel Production with Municipal Wastewater Treatment in Watersheds with Nutrient Trading Markets

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