Incorporation of salinity, nitrogen, and shading stress factors into the Huesemann Algae Biomass Growth model

Gao, Song; Waller, Peter; Khawam, George; Attalah, Said; Huesemann, Michael H.; Ogden, Kimberly L.

doi:10.1016/j.algal.2018.09.021

Cited by 17 publications

(19 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The algae's doubling time is affected by various parameters, such as temperature, pH, sunlight, and CO 2 concentration. The shorter period of doubling time indicates that the species is fast-growing algae and can utilize higher CO 2 as reflects its higher cell density [25][26][27] .…”

Section: Screening Of Carbon Fixation Abilitiesmentioning

confidence: 99%

Screening of native microalgae species for carbon fixation at the vicinity of Malaysian coal-fired power plant

Yahya

Harun

Abdullah

2020

Sci Rep

View full text Add to dashboard Cite

Global warming has become a serious issue nowadays as the trend of CO2 emission is increasing by years. In Malaysia, the electricity and energy sector contributed a significant amount to the nation’s CO2 emission due to fossil fuel use. Many research works have been carried out to mitigate this issue, including carbon capture and utilization (CCUS) technology and biological carbon fixation by microalgae. This study makes a preliminary effort to screen native microalgae species in the Malaysian coal-fired power plant’s surrounding towards carbon fixation ability. Three dominant species, including Nannochloropsis sp., Tetraselmis sp., and Isochrysis sp. were identified and tested in the laboratory under ambient and pure CO2 condition to assess their growth and CO2 fixation ability. The results indicate Isochrysis sp. as the superior carbon fixer against other species. In continuation, the optimization study using Response Surface Methodology (RSM) was carried out to optimize the operating conditions of Isochrysis sp. using a customized lab-scale photobioreactor under simulated flue gas exposure. This species was further acclimatized and tested under actual flue gas generated by the power plant. Isochrysis sp. had shown its capability as a carbon fixer with CO2 fixation rate of 0.35 gCO2/L day under actual coal-fired flue gas exposure after cycles of acclimatization phase. This work is the first to demonstrate indigenous microalgae species' ability as a carbon fixer under Malaysian coal-fired flue gas exposure. Thus, the findings shall be useful in exploring the microalgae potential as a biological agent for carbon emission mitigation from power plants more sustainably.

show abstract

Section: Screening Of Carbon Fixation Abilitiesmentioning

confidence: 99%

Screening of native microalgae species for carbon fixation at the vicinity of Malaysian coal-fired power plant

Yahya

Harun

Abdullah

2020

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The model simulates the growth during the day by setting the initial AFDW to AFDW m at morning sampling time. Using the measured solar radiation and water temperature as inputs, by incorporating growth limiting factors (Gao et al ., 2018; Khawam et al ., 2019), the model yields the AFDW for the evening sampling time, AFDW e ʹ. The modelled growth rate, μ model , is calculated following Equation (1) by replacing AFDW e with AFDW e ʹ .…”

Section: Methodsmentioning

confidence: 99%

Association between algal productivity and phycosphere composition in an outdoor Chlorella sorokiniana reactor based on multiple longitudinal analyses

Steichen

Gao

Waller

et al. 2020

Microbial Biotechnology

Self Cite

View full text Add to dashboard Cite

Microalgae as a biofuel source are of great interest. Bacterial phycosphere inhabitants of algal cultures are hypothesized to contribute to productivity. In this study, the bacterial composition of the Chlorella sorokiniana phycosphere was determined over several production cycles in different growing seasons by 16S rRNA gene sequencing and identification. The diversity of the phycosphere increased with time during each individual reactor run, based on Faith's phylogenetic diversity metric versus days post-inoculation (R = 0.66, P < 0.001). During summer months, Vampirovibrio chlorellavorus, an obligate predatory bacterium, was prevalent. Bacterial sequences assigned to the Rhizobiales, Betaproteobacteriales and Chitinophagales were positively associated with algal biomass productivity. Applications of the general biocide, benzalkonium chloride, to a subset of experiments intended to abate V. chlorellavorus appeared to temporarily suppress phycosphere bacterial growth, however, there was no relationship between those bacterial taxa suppressed by benzalkonium chloride and their association with algal productivity, based on multinomial model correlations. Algal health was approximated using a model-based metric, or the 'Health Index' that indicated a robust, positive relationship between C. sorokiniana fitness and presence of members belonging to the Burholderiaceae and Allorhizobium-Neorhizobium-Pararhizobium-Rhizobium clade. Bacterial community composition was linked to the efficiency of microalgal biomass production and algal health.

show abstract

“…El porcentaje promedio de reducción de la conductividad eléctrica (CE) fue: 4.22% en T3, 20.65% en T4, 20.32% en T5, y 43.76% en T6; en general, las bacterias consumen más iones que las algas durante la respiración celular, lo que explica el rápido descenso en T6 y T5 (19). Como se observa en el gráfico 3, la CE tiende a disminuir en todos los tratamientos, lo que supondría también una reducción de los niveles de cloruros, nitratos, sulfatos, fosfatos, sodio, magnesio y calcio, principalmente (20).…”

Section: Degradación De La Materia Orgánicaunclassified

“…El estado de este elemento en el cultivo es importante para la productividad de biomasa (20); la diferencia en los porcentajes de reducción con respecto a otros estudios se debería a que algunas formas de nitrógeno no pudieron ser asimiladas por las algas, debido a las condiciones de cultivo y a la variedad de especies presentes (17,23,24).…”

Section: Gráfico 3 Comportamiento De La Conductividad En Cada Tratamientounclassified

Evaluación De La Capacidad De Algas Chlorophyta Para Remover Materia Orgánica en Aguas Residuales Del Camal Municipal De Shushufindi, Ecuador.

Mejía

Pacurucu

Heredia

2021

Perf

View full text Add to dashboard Cite

Se evaluó la capacidad de algas Chlorophyta aisladas de la laguna Limoncocha para remover materia orgánica en aguas residuales del camal municipal del cantón Shushufindi, Provincia de Sucumbíos – Ecuador. Se utilizó un fotobiorreactor tubular para aplicar seis tratamientos de 1.8 L, con cinco repeticiones cada uno. Los tratamientos dirigidos a evaluar el crecimiento de las algas consistieron en el uso del medio de cultivo Nitrofoska foliar, con y sin aireación; para las pruebas de reducción de materia orgánica se aplicaron cuatro tratamientos con dilución de 1:3 del agua residual: dos unidades experimentales inoculadas con algas Chlorophyta, con y sin aireación; y dos unidades experimentales sin inoculación de algas, con y sin aireación. El fotoperiodo fue de 12 horas a 22.38°C y un pH de 8.45. El tratamiento más eficiente para la remoción de DBO5 (83.1%), fosfatos (58.9%), nitrógeno total Kjeldahl (63.1%), corresponde al cultivo aireado de algas Chlorophyta en agua residual diluida, presentando además mayor productividad celular (41944 células/L/día) en comparación al crecimiento en el medio de cultivo. La remoción más eficiente de sulfatos (58.9%) se obtuvo mediante el cultivo de algas Chlorophyta en agua residual diluida sin aireación.

show abstract

Incorporation of salinity, nitrogen, and shading stress factors into the Huesemann Algae Biomass Growth model

Cited by 17 publications

References 29 publications

Screening of native microalgae species for carbon fixation at the vicinity of Malaysian coal-fired power plant

Screening of native microalgae species for carbon fixation at the vicinity of Malaysian coal-fired power plant

Association between algal productivity and phycosphere composition in an outdoor Chlorella sorokiniana reactor based on multiple longitudinal analyses

Evaluación De La Capacidad De Algas Chlorophyta Para Remover Materia Orgánica en Aguas Residuales Del Camal Municipal De Shushufindi, Ecuador.

Contact Info

Product

Resources

About