Effects of nitrogen source heterogeneity on nutrient removal and biodiesel production of mono- and mix-cultured microalgae

Zhu, Linna; Li, Shuangxi; Hu, Tianyi; Nugroho, Yohanes Kristianto; Yin, Zhaoyi; Hu, Dan; Chu, Ruoyu; Mo, Fan; Liu, Chenchen; Hiltunen, Erkki

doi:10.1016/j.enconman.2019.112144

Cited by 111 publications

(36 citation statements)

References 47 publications

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“…[16], while nitrogen is used to synthesize various biological substances such as peptides, proteins, enzymes, chlorophyll, energy transfer molecules, genetic materials, etc. [15,27]. These results effectively met the discharge standard of these pollutants for piggery wastewater (GB18596-2001, NH 4…”

Section: Growth Of C Vulgaris In the Reactorsupporting

confidence: 51%

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Cultivation of Chlorella vulgaris in a Light-Receiving-Plate (LRP)-Enhanced Raceway Pond for Ammonium and Phosphorus Removal from Pretreated Pig Urine

et al. 2020

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Fresh pig urine is unsuitable for microalgae cultivation due to its high concentrations of NH4+-N, high pH and insufficient magnesium. In this study, fresh pig urine was pretreated by dilution, pH adjustment, and magnesium addition in order to polish wastewater and produce microalgae biomass. Chlorella vulgaris was cultured in an in-house-designed light-receiving-plate (LRP)-enhanced raceway pond to treat the pretreated pig urine in both batch and continuous mode under outdoor conditions. NH4+-N and TP in wastewater were detected, and the growth of C. vulgaris was evaluated by chlorophyll fluorescence activity as well as biomass production. Results indicated that an 8-fold dilution, pH adjusted to 6.0 and MgSO4·7H2O dosage of 0.1 mg·L−1 would be optimal for the pig urine pretreatment. C. vulgaris could stably accumulate biomass in the LRP-enhanced raceway pond when cultured by both BG11 medium and the pretreated pig urine. About 1.72 g·m−2·day−1 of microalgal biomass could be produced and 98.20% of NH4+-N and 68.48% of TP could be removed during batch treatment. Hydraulic retention time of 7-9d would be optimal for both efficient nutrient removal and microalgal biomass production during continuous treatment.

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Section: Growth Of C Vulgaris In the Reactorsupporting

confidence: 51%

“…[16], while nitrogen 353 is used to synthesize various biological substances such as peptides, proteins, enzymes, chlorophyll, 354 energy transfer molecules, genetic materials, etc. [15,27].…”

mentioning

confidence: 99%

Cultivation of Chlorella vulgaris in a Light-Receiving-Plate (LRP)-Enhanced Raceway Pond for Ammonium and Phosphorus Removal from Pretreated Pig Urine

et al. 2020

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“…1). A part of cellulose in RHs gets hydrolyzed and transferred into the solution during acid treatment [1,[37][38][39][40][41], resulting in breaking down of the crosslinked structure between organic mass and SiO 2 in RHs. Hydrolysis of cellulose also contributes to increased SiO 2 /C molar ratio in acidtreated RHs (A-RHs).…”

Section: Introductionmentioning

confidence: 99%

Controllable conversion of rice husks to Si/C and SiC/C composites in molten salts

Pang

Weng

Zhou

et al. 2021

Journal of Energy Chemistry

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“…Biodiesel is a mixture of fatty acid alkyl esters (FAAE), most commonly methacrylate (FAME) or ethyl ester (FAEE), obtaining by alcoholysis of triacylglycerol (TAG) from microalgae oil (Halim et al, 2012). Studies are concentrated on the selection of oil-producing algae species (Nwokoagbara et al, 2015;Yu et al, 2015;Arroussi et al, 2017;Sadvakasova et al, 2019), fatty acid composition and fuel characteristics (Islam et al, 2017;Piloto-Rodríguez et al, 2017), upstream cultivation of microalgae for biodiesel production and downstream processing (Wang et al, 2016;Zhu et al, 2017Zhu et al, , 2019Kadir et al, 2018;Mathimani and Mallick, 2018;Tan et al, 2018;Goh et al, 2019;Yew et al, 2019;Yin et al, 2020), and analysis of economic feasibility and energy potential (Shin et al, 2018;Arcigni et al, 2019;Sun J. et al, 2019). Though there are few researches and evaluations on the production of microalgae edible oil.…”

Section: Introductionmentioning

confidence: 99%

Development Prospect and Preparation Technology of Edible Oil From Microalgae

Xue

et al. 2020

Front. Mar. Sci.

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Microalgae are a valuable and rich source of oil. By the means of using microalgae oil as raw materials or additives for edible oil will improve the nutritional and edible value of the latter. This paper compares the lipid content and fatty acid composition of microalgae and traditional oil crops, elaborates the lipid synthesis mechanism of microalgae cells and the strategies of promoting lipid accumulation both from environmental pressure and from molecular pressure, summarizes the methods of breaking microalgae cell walls and extracting oil, analyzes the nutritional value, toxicity, antioxidant, and economic feasibility issues to be considered in microalgae edible oil. It is hoped that this study could provide theoretical basis for the actual production of microalgae edible oil, and provide inspiration for the research on the synthesis, accumulation, extraction and preparation of microalgae oils.

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Effects of nitrogen source heterogeneity on nutrient removal and biodiesel production of mono- and mix-cultured microalgae

Cited by 111 publications

References 47 publications

Cultivation of Chlorella vulgaris in a Light-Receiving-Plate (LRP)-Enhanced Raceway Pond for Ammonium and Phosphorus Removal from Pretreated Pig Urine

Cultivation of Chlorella vulgaris in a Light-Receiving-Plate (LRP)-Enhanced Raceway Pond for Ammonium and Phosphorus Removal from Pretreated Pig Urine

Controllable conversion of rice husks to Si/C and SiC/C composites in molten salts

Development Prospect and Preparation Technology of Edible Oil From Microalgae

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