Sequential cultivation of microalgae in raw and recycled dairy wastewater: Microalgal growth, wastewater treatment and biochemical composition

Daneshvar, Ehsan; Zarrinmehr, Mohammad Javad; Koutra, Eleni; Kornaros, Michael; Farhadian, Omidvar; Bhatnagar, Amit

doi:10.1016/j.biortech.2018.11.059

Cited by 156 publications

(32 citation statements)

References 41 publications

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“…Souza Andrade (2014) states that the average generation per day for this microalgae species Chlorella vulgaris can reach between 0.02 to 0.20 g L -1 . In the research by Daneshvar et al (2019) state that microalgae grown in urban wastewater can increase from 0.04 g L -1 initial amount of strain to 0.43 g L final amount of strain after 12 days of cultivation. Criterion such as the choice of species, concentration of nutrients, cultivation conditions such as luminosity, pH and temperature, increase the generation of microalgal biomass for the generation of clean energy such as biodiesel (Cheah et al, 2016).…”

Section: Microalgae Growth and Biomass Productionmentioning

confidence: 99%

Bioremediation of urban river wastewater using Chlorella vulgaris microalgae to generate biomass with potential for biodiesel production

Marques

Melo

Oliveira

et al. 2020

RSD

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The production of biofuels through microalgae biomass represents a new generation of raw materials from renewable sources to meet society’s clamors and growing insertion in the market of fuels from products that could grant the planet a sustainable future. The present study assesses the biomass obtained from microalgae Chlorella vulgaris when grown in urban wastewater, extracting the lipids from the biomass and performing Gas Chromatography analysis of fatty acid methyl esters (FAME) composition after submitting the lipids through the transesterification process. The microalgae cultivation was monitored through chlorophyll (a) analysis and the highest cell growth was 845.8 µg L-1 using urban wastewater as growth medium. The nutrients of interest were monitored for primary concentration of 8.06 ± 0.06 mg L-1 of ammoniacal nitrogen, 12.27 ± 0.27 mg L-1 of nitrate and 21.22 ± 0.85 mg L-1 of phosphate, reducing about 99% of ammoniacal nitrogen and nitrate, along with reducing 87% of phosphate. The lipid constitution extracted from 3.7 g of dry biomass of Chlorella vulgaris after cultivation using urban wastewater, was 7.7%. The lipids extracted from the Chlorella vulgaris biomass are suitable biodiesel production regarding the amounts of FAMEs identified, after the analysis carried out, the comparison of the results obtained with other studies and the hypotheses evaluation.

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Section: Microalgae Growth and Biomass Productionmentioning

confidence: 99%

Bioremediation of urban river wastewater using Chlorella vulgaris microalgae to generate biomass with potential for biodiesel production

Marques

Melo

Oliveira

et al. 2020

RSD

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“…Wastewaters from milk processing (dairy wastewaters -DWs) and derived products are composed of wasted milk residues, lactose, fats, nutrients and residues of detergents and disinfectants. Depending on the season and the production system, the characterization of DWs varies considerably (Chandra et al, 2018;Daneshvar et al, 2019).…”

Section: Mota Et Al (2009)mentioning

confidence: 99%

Study on Brazilian agribusiness wastewaters: composition, physical‑chemical characterization, volumetric production and resource recovery

Morais

Coelho

Silva

et al. 2021

Rev. Bras. Ciênc. Ambient. (Online)

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Brazil is a significant producer of agricultural and agro-industrial waste, which can be used to recover valuable resources, such as struvite, hydroxyapatite, methane gas, hydrogen gas, and carboxylic acids, to mitigate the environmental impacts of the agro-industrial sector, add economic value to organic waste, and promote the sustainability of natural resources. Thus, this work's objective was to compile and analyze data on the composition, physical-chemical characterization, and volumetric production of six agricultural and agro-industrial wastewaters (AWWs) from activities of paramount importance in Brazilian agribusiness and to report studies on resource recovery from those liquid wastes. The literature review was carried out by analyzing scientific works obtained by searching for keywords in different databases. It was concluded that swine wastewaters (SWs), slaughterhouse wastewaters (SHWs), and dairy wastewaters (DWs) are the most promising for struvite recovery. DWs also stand out for the recovery of hydroxyapatite. SWs and brewery wastewaters (BWs) are commonly used for prospecting for algae or bacterial biomass and their derivative products. All AWWs analyzed are considered promising for biogas, methane and hydrogen, while the most soluble AWWs are more valuable for carboxylic acid production.

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“…Among different nutrients, nitrogen is the main source for microalgae growth (Daneshvar et al, 2019). Different forms of nitrogen in wastewater includes ammonium (NH4 + ), ammonia (NH3), nitrate (NO3 -), nitrite (NO2 -).…”

Section: Nutrient Removal Efficiency Of C Sorokiniana Pa91 In the Pmentioning

confidence: 99%

Optimization of Cultivation Condition of Newly Isolated Strain Chlorella Sorokiniana pa.91 for CO2 Bio-Fixation and Nutrients Removal From Real Municipal Wastewater: Impact of Temperature and Light Intensity

Yaqoubnejad

Rad

Taghavijeloudar

2021

Preprint

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The cultivation conditions of a newly isolated strain Chlorella sorokiniana pa.91 were optimized for the first time by performing sixty batch cultivation experiments at various temperatures (20, 25, 30 and 35 °C) and light intensities (1000, 3000, 4000, 5000 and 7000 Lux) in three different culture mediums of BG-11, real settled municipal wastewater (RMWW) and synthetic wastewater (SWW). Additionally, to evaluate the capability of C. sorokiniana pa.91 in CO2 bio-fixation and wastewater treatment, the microalgae was cultivated in a flat-plate photobioreactor (CO2 = 16% and 0.6 vvm aeration) under the optimal condition. The optimization results suggested that at the culture conditions of 30 °C, 4000 Lux and RMWW (COD 211 mgL-1) microalgae had the best performance in growth and biomass productivity. Maximum biomass concentration and productivity of 3.21 gL-1 and 0.31 gL-1d-1were achieved, respectively, by cultivation of C. sorokiniana pa.91 in the photobioreactor under the optimized condition. Experimental results showed that C. sorokiniana pa.91 has a high capacity of CO2 bio-fixation (0.59 mgL-1d-1) and CO2 removal rate (35.6 %). Moreover, using C. sorokiniana pa.91 could efficiently remove 74% of NH3, 93% of NO3-, 83% of PO4-3 and 76% of COD from real municipal wastewater after eight days of cultivation in the photobioreactor.

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Sequential cultivation of microalgae in raw and recycled dairy wastewater: Microalgal growth, wastewater treatment and biochemical composition

Cited by 156 publications

References 41 publications

Bioremediation of urban river wastewater using Chlorella vulgaris microalgae to generate biomass with potential for biodiesel production

Bioremediation of urban river wastewater using Chlorella vulgaris microalgae to generate biomass with potential for biodiesel production

Study on Brazilian agribusiness wastewaters: composition, physical‑chemical characterization, volumetric production and resource recovery

Optimization of Cultivation Condition of Newly Isolated Strain Chlorella Sorokiniana pa.91 for CO2 Bio-Fixation and Nutrients Removal From Real Municipal Wastewater: Impact of Temperature and Light Intensity

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Sequential cultivation of microalgae in raw and recycled dairy wastewater: Microalgal growth, wastewater treatment and biochemical composition

Cited by 156 publications

References 41 publications

Bioremediation of urban river wastewater using Chlorella vulgaris microalgae to generate biomass with potential for biodiesel production

Bioremediation of urban river wastewater using Chlorella vulgaris microalgae to generate biomass with potential for biodiesel production

Study on Brazilian agribusiness wastewaters: composition, physical‑chemical characterization, volumetric production and resource recovery

Optimization of Cultivation Condition of Newly Isolated Strain Chlorella Sorokiniana pa.91 for&nbsp;CO2 Bio-Fixation and Nutrients Removal From Real Municipal Wastewater: Impact of Temperature and Light Intensity

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Optimization of Cultivation Condition of Newly Isolated Strain Chlorella Sorokiniana pa.91 for CO2 Bio-Fixation and Nutrients Removal From Real Municipal Wastewater: Impact of Temperature and Light Intensity