Growth of the microalga Botryococcus braunii in secondarily treated sewage

Órpez, Rafael; Martínez, Manuel Villanueva; Hodaifa, Gassan; Yousfi, Farida El; Jbari, Nohman; Sánchez, Sebastián

doi:10.1016/j.desal.2008.07.016

Cited by 113 publications

(29 citation statements)

References 10 publications

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“…Botryococcus sp. consumes nitrogen quickly in ammonium form [22].The conclusion is both of these nutrients had been removed after treatment using microalgae (Botryococcus sp.). Figure 1.…”

Section: Removal Of Physiochemical Propertiesmentioning

confidence: 98%

Physiochemicals and Heavy Metal Removal from Domestic Wastewater via Phycoremediation

Razak

Sunar

Alias

et al. 2016

MATEC Web of Conferences

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Abstract. The common sources of water pollution in Malaysia are domestic sewage and industrial waste. Therefore, domestic wastewater quality effluent should be improved before discharged through the outlets. The alternative method of treatment uses microalgae for water remediation which is known as phycoremediation was applied. This technique is to remove or reduce nutrients and harmful pollutants in domestic wastewater. Thus, objective of the present study is to bioremediate the physiochemical and heavy metal from domestic wastewater using freshwater green microalgae Botryococcus sp. A photobioreactor is used to treat the wastewater by employing the microalgae Botryococcus sp. as a vital part of the treatment system. The results show that several nutrients have been reduced successfully such as phosphate and total phosphorus of 100% removal, inorganic carbon of 99% removal, total carbon of 42% removal, and nitrate of 10%. The most prominent heavy metal content that has been removed is Aluminium of 41%. At the same time, the growth of microalgae Botryococcus sp. in this wastewater has achieved the maximum value at Day 4 with 2.58 x 10 5 cell/ml only. These results show the potential of Botryococcus sp. cultivation as an alternative method to treat domestic wastewater and any other biotechnology works in the future.

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“…Botryococcus sp. consumes nitrogen quickly in ammonium form [22].The conclusion is both of these nutrients had been removed after treatment using microalgae (Botryococcus sp.). Figure 1.…”

Section: Removal Of Physiochemical Propertiesmentioning

confidence: 98%

Physiochemicals and Heavy Metal Removal from Domestic Wastewater via Phycoremediation

Razak

Sunar

Alias

et al. 2016

MATEC Web of Conferences

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“…in dairy manure wastewater had very high biomass as well as fatty acid yield. Orpez, R. et al [34] found that Botryococcus braunii cultivated in sewage (secondarily treated) as tertiary treatment unit can acquire good performance with 17% lipid accumulation. There were also other researches suggested that the industrial wastewater can be subjected to dilution or mixing with organic compounds will promote the growth of microalgae [35,36].…”

Section: Applications Of Microalgae In Wastewatermentioning

confidence: 99%

Cultivation of microalgae in wastewater: A review

Zhu¹,

Pei²,

Qin³

et al. 2017

Proceedings of the 2016 4th International Conference on Renewable Energy and Environmental Technology (ICREET 2016)

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Abstract. Microalgae have great potential as the feedstock of renewable energy. Nevertheless, the high cost of microalgae cultivation hinders its development economically, so inexpensive cultural mediums are supposed to be found for the large-scale application of microalgae. Wastewater contains large amount of organic and inorganic compounds, which provides nutrition for the cell growth and lipid accumulation of microalgae. Here we will review the systems of microalgae cultivation and utilize wastewater as a feedstock for biodiesel production. It illustrates that the integration of microalgae cultivation and wastewater treatment could improve water quality and accumulate lipid simultaneously.

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“…At present, there has therefore once again been a revival in research conducted investigating the benefits of algae with wastewater treatment. Many different wastewater types have been investigated, most common are domestic sewage [25][26][27][28], agricultural wastewater (swine and cattle) [27,[29][30][31][32] and several industrial wastewaters, e.g., carpet manufacturing [33] and distillation [34]. Previous research suggests that cultivation in tertiary treatment steps may provide the ideal conditions for good algae growth due to high residual nutrient loading and prior removal of organic contaminants [26].…”

Section: Algae and Wastewater Treatmentmentioning

confidence: 99%

Achieving a Green Solution: Limitations and Focus Points for Sustainable Algal Fuels

Aitken

Antízar-Ladislao

2012

Energies

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Abstract:Research investigating the potential of producing biofuels from algae has been enjoying a recent revival due to heightened oil prices, uncertain fossil fuel sources and legislative targets aimed at reducing our contribution to climate change. If the concept is to become a reality however, many obstacles need to be overcome. Recent studies have suggested that open ponds provide the most sustainable means of cultivation infrastructure due to their low energy inputs compared to more energy intensive photobioreactors. Most studies have focused on strains of algae which are capable of yielding high oil concentrations combined with high productivity. Yet it is very difficult to cultivate such strains in open ponds as a result of microbial competition and limited radiation-use efficiency. To improve viability, the use of wastewater has been considered by many researchers as a potential source of nutrients with the added benefit of tertiary water treatment however productivity rates are affected and optimal conditions can be difficult to maintain year round. This paper investigates the process streams which are likely to provide the most viable methods of energy recovery from cultivating and processing algal biomass. The key findings are the importance of a flexible approach which depends upon location of the cultivation ponds and the industry targeted. Additionally this study recommends moving towards technologies producing higher energy recoveries such as pyrolysis or anaerobic digestion as opposed to other studies which focused upon biodiesel production.

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Growth of the microalga Botryococcus braunii in secondarily treated sewage

Cited by 113 publications

References 10 publications

Physiochemicals and Heavy Metal Removal from Domestic Wastewater via Phycoremediation

Physiochemicals and Heavy Metal Removal from Domestic Wastewater via Phycoremediation

Cultivation of microalgae in wastewater: A review

Achieving a Green Solution: Limitations and Focus Points for Sustainable Algal Fuels

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