Effects of photoperiod on nutrient removal, biomass production, and algal-bacterial population dynamics in lab-scale photobioreactors treating municipal wastewater

Lee, Chang‐Soo; Lee, Sang Ah; Ko, So Ra; Oh, Hee‐Mock; Ahn, Chi‐Yong

doi:10.1016/j.watres.2014.10.029

Cited by 269 publications

(55 citation statements)

References 62 publications

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“…On the basis of microalgal composition, the quantity of N required as fertilizer is estimated to be 8–16 tonnes N/ha . Recently, most kinds of wastewater – including agricultural wastewater, industrial wastewater, and domestic wastewater – have been employed to cultivate microalgae for biofuel production …”

Section: Microalgal Cultivation Technologymentioning

confidence: 99%

Microalgal culture strategies for biofuel production: a review

Zhu

2015

Biofuels Bioprod Bioref

154

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In response to the energy crisis, global warming and climate change, microalgae have received a lot of attention as a promising feedstock for the production of biofuels. However, microalgal biofuels are still unaffordable due to low productivity and their substantial requirements in capital investment and operation costs. Much original research regarding the various microalgal cultivation strategies has been reported, in an attempt to promote microalgal biofuel production. However, current literature indicates the fragmented nature of information available regarding the strategies for the improvement of microalgal production for biofuel conversion. From a systematic perspective, this review highlights the main microalgal cultivation strategies for the achievement of improved biomass and biofuel productivity. It first discloses the current state of microalgal production as a biofuel feedstock, giving general introduction to the topic. Subsequently, it summarizes the current microalgae cultivation technology. Microalgal cultivation strategies are then discussed systematically, including integration with wastewater treatment and CO2 mitigation, batch vs. semi‐continuous vs. continuous culture, two‐stage continuous cultivation, co‐culture, stress culture, and microalgal cultivation with harvest water recycling. Finally, concluding remarks are put forward. © 2015 Society of Chemical Industry and John Wiley & Sons, Ltd

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Section: Microalgal Cultivation Technologymentioning

confidence: 99%

Microalgal culture strategies for biofuel production: a review

Zhu

2015

Biofuels Bioprod Bioref

154

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“…Another different phenomenon was observed in a heterotrophic bacteria and eukaryotic green algal population culturing system (Lee et al, 2015). In Lee's study, the chlorophyll production decreased with an increase in light/dark cycle ranging from 1.0 to 5.0.…”

Section: Effects Of Light/dark Cycle On Carotenoid and Bacteriochloromentioning

confidence: 86%

“…According to previous studies, the light/dark cycle frequency had great effects on the growth of microalgae (Lee et al, 2015;Wahidin et al, 2013). PSB as a similar photosynthetic microorganism might also be affected by the light/dark cycle frequency.…”

Section: Effects Of Light/dark Cycle Frequencymentioning

confidence: 89%

“…Microalgae is an equally important photosynthetic microorganism that utilizes pigments for photosynthesis, and the related studies on microalgae can be used as references. Studies showed that different light/dark cycles and different light/dark cycle frequencies impacted the growth of microalgae (Lee et al, 2015;Wahidin et al, 2013). The biomass of microalgae under intermittent illumination was higher than under continuous illumination (Janssen et al, 2000;Liao et al, 2014;Xue et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Biomass and pigments production in photosynthetic bacteria wastewater treatment: Effects of photoperiod

Zhou

Zhang

et al. 2015

Bioresource Technology

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“…MLSS and switch virtual interface (SVI) were determined via standard methods [25]. In this study, the chlorophyll a (Chl-a) concentration was used to indicate the biomass of mixed algae [26]. The specific steps for determining the chlorophyll a concentration was as follows: First, the sample was centrifuged for 10 min in a centrifuge rotating at 4000 rpm.…”

Section: Microbial Activity Analysis and Algal Biomass Estimationmentioning

confidence: 99%

Algal-Bacterial Symbiosis System Treating High-Load Printing and Dyeing Wastewater in Continuous-Flow Reactors under Natural Light

Lin

Cao

et al. 2019

Water

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This study investigated the symbiotic structure relationship between mixed algae andactivated sludge while treating high-load printing and dyeing wastewater under natural light. Theeffects of hydraulic retention time (HRT) (12 h, 16 h and 20 h) and aeration rate (0.1–0.15, 0.4–0.5and 0.7–0.8 L/min) on algal–bacterial symbiosis (ABS) and conventional activated sludge (CAS)systems. Experimental results showed that the ABS system exhibited the best removal performancefor chemical oxygen demand (COD), ammonia nitrogen (NH4+-N) and total phosphorus (TP),which was increased by 12.5%, 23.1% and 10.5%, respectively, and reduced colour 80 timescompared with the printing and dyeing wastewater treatment plant. Algae growth could bepromoted under lower dissolved oxygen (DO), and the addition of algae could provide more DO tothe ABS system. The particle size distribution of sludge in the ABS system was stable, whichguaranteed a stable treatment effect. In addition, the COD and colour could be further degradedunder the conditions of no external carbon source and longer HRT. It is expected that the presentstudy will provide a foundation for the practical application of the ABS system, and new insightsfor the treatment of printing and dyeing wastewater.

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Effects of photoperiod on nutrient removal, biomass production, and algal-bacterial population dynamics in lab-scale photobioreactors treating municipal wastewater

Cited by 269 publications

References 62 publications

Microalgal culture strategies for biofuel production: a review

Microalgal culture strategies for biofuel production: a review

Biomass and pigments production in photosynthetic bacteria wastewater treatment: Effects of photoperiod

Algal-Bacterial Symbiosis System Treating High-Load Printing and Dyeing Wastewater in Continuous-Flow Reactors under Natural Light

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