Life-cycle assessment and geospatial analysis of integrating microalgae cultivation into a regional economy

Bussa, Maresa; Zollfrank, Cordt; Röder, Hubert

doi:10.1016/j.jclepro.2019.118630

Cited by 28 publications

(8 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…After considering different proposals from the literature, the main sustainability aspects of integrated microalgae and AD technologies can be highlighted (Figure 8.5). The beneficial use of digestate and residual biomass after AD as a nutrient source in microalgae cultivation and a valuable by-product is essential (Bussa et al, 2020). Otherwise, it will be considered an emission to the environment, causing pollution.…”

Section: Insights For Improving the Sustainability Performance Of Int...mentioning

confidence: 99%

“…Thus, pH control in the HRAP and CO 2 supplementation may be an alternative to minimize the negative impacts of ammonia volatilization (Tua et al, 2021). The CO 2 source for C supplementation during microalgae growth is also critical (Bussa et al, 2020). In that way, the biogas upgrading through CO 2 bio-assimilation in the cultivation reactor may represent an environmental and economic benefit (see Section 8.4).…”

Section: Insights For Improving the Sustainability Performance Of Int...mentioning

confidence: 99%

“…So, there will not be an optimal biorefinery system applicable to any case, and the various local factors involved should be considered. For example, Bussa et al (2020) concluded the high potential of integrated microalgal cultivation with AD in rural regions with cattle farming and in areas with a higher degree of urbanization where large municipal WWTPs were in operation. By doing a geospatial analysis, the authors stated that low potential areas require larger transportation distances for substrates or digestates, reducing the environmental benefits while increasing the economic burden.…”

Section: Insights For Improving the Sustainability Performance Of Int...mentioning

confidence: 99%

See 2 more Smart Citations

Integrated anaerobic digestion and algae cultivation

Calijuri,

Assemany,

Lorentz

et al. 2023

Algal Systems for Resource Recovery From Waste and Wastewater

View full text Add to dashboard Cite

Anaerobic digestion is considered a versatile process that for years has been used to treat various types of waste. Besides being a low-cost technology applicable in rural and urban locations, anaerobic digestion produces multiple by-products that can be integrated into a biorefinery scenario. Similarly, microalgae biotechnology can adequately complement anaerobic digestion by improving resource recovery through a closed-loop process and contributing to a biobased green circular economy model. Therefore, this chapter aims to address current perspectives on the topic. It covers algae cultivation from anaerobic digestion residues as a post-treatment option and digestate as a potential medium for microalgae growth. Moreover, anaerobic digestion is presented as an energetic valorization route of algae biomass, including strategies to overcome main challenges, such as pre-treatment of microalgae biomass and anaerobic co-digestion. Biogas upgrading during algae cultivation is also discussed. Finally, it presents biorefinery models based on integrated microalgae and anaerobic digestion, reporting the technologies’ sustainability and environmental impacts. Future perspectives on the subject are highlighted, encouraging further studies to improve microalgae biomass production, nutrient recovery, wastewater treatment, and biogas upgrading.

show abstract

Section: Insights For Improving the Sustainability Performance Of Int...mentioning

confidence: 99%

Section: Insights For Improving the Sustainability Performance Of Int...mentioning

confidence: 99%

Section: Insights For Improving the Sustainability Performance Of Int...mentioning

confidence: 99%

See 1 more Smart Citation

Integrated anaerobic digestion and algae cultivation

Calijuri,

Assemany,

Lorentz

et al. 2023

Algal Systems for Resource Recovery From Waste and Wastewater

View full text Add to dashboard Cite

show abstract

“…However, research on this field has only increased in the last decade [20,21], also responding to an increasing global demand for microalgae, from 10.51 million tons in 2000 to 30.45 million tons in 2015. In 2016, the microalgae sector generated an added value of EUR 1.69 billion, and 14,000 workers were employed in the microalgae sector and associated production chain [22]. The major producers of algal biomass were Asian countries, which produced 97% of the total production in 2015.…”

Section: State Of the Artmentioning

confidence: 99%

A Review about Microalgae Wastewater Treatment for Bioremediation and Biomass Production—A New Challenge for Europe

et al. 2021

View full text Add to dashboard Cite

Microalgae have received much attention in the last few years. Their use is being extended to different fields of application and technologies, such as food, animal feed, and production of valuable polymers. Additionally, there is interest in using microalgae for removal of nutrients from wastewater. Wastewater treatment with microalgae allows for a reduction in the main chemicals responsible for eutrophication (nitrogen and phosphate), the reduction of organic substrates (by decreasing parameters such as BOD and COD) and the removal of other substances such as heavy metals and pharmaceuticals. By selecting and reviewing 202 articles published in Scopus between 1992 and 2020, some aspects such as the feasibility of microalgae cultivation on wastewater and potential bioremediation have been investigated and evaluated. In this review, particular emphasis was placed on the different types of wastewaters on which the growth of microalgae is possible, the achievable bioremediation and the factors that make large-scale microalgae treatment feasible. The results indicated that the microalgae are able to grow on wastewater and carry out effective bioremediation. Furthermore, single-step treatment with mixotrophic microalgae could represent a valid alternative to conventional processes. The main bottlenecks are the large-scale feasibility and costs associated with biomass harvesting.

show abstract

“…Some of the LCA studies are quite optimistic about the future applicability and convenience of microalgae cultivation for commodities purposes, e.g. energy (Hossain et al, 2019;Pegallapati and Frank, 2016) and feedstock (Bussa et al, 2020), while others are more cautious in delineating and delimiting the role that microalgae production may have in the production systems of the future (Branco-Vieira et al, 2020;Pérez-López et al, 2017;Schneider et al, 2018a;Yadav et al, 2020).…”

Section: Introductionmentioning

confidence: 99%