Cultivation of microalgae for lipid production using municipal wastewater

2021 ◽  
Vol 155 ◽  
pp. 155-165
Author(s):  
Wei Han ◽  
Wenbiao Jin ◽  
Ze Li ◽  
Yubin Wei ◽  
Zhongqi He ◽  
...  
Keyword(s):  
Municipal Wastewater ◽  
Lipid Production

scholarly journals TESTING OF CHLORELLA/SCENEDESMUS MICROALGAE CONSORTIA FOR REMEDIATION OF WASTEWATER, CO₂ MITIGATION AND ALGAE BIOMASS FEASIBILITY FOR LIPID PRODUCTION

2014 ◽  
Vol 22 (2) ◽  
pp. 105-114 ◽  
Author(s):  
Judita Koreivienė ◽  
Robertas Valčiukas ◽  
Jūratė Karosienė ◽  
Pranas Baltrėnas
Keyword(s):  
Municipal Wastewater ◽  
Global Climate ◽  
Inorganic Nitrogen ◽  
Lipid Production ◽  
Single Species ◽  
Inorganic Phosphorus ◽  
Climatic Conditions ◽  
Biofuel Production ◽  
Treated Wastewater ◽  
Algae Biomass

Industry, transport and unsustainable agriculture result in the increased quantity of wastewater, release of nutrients and emission of carbon dioxide that promotes eutrophication of water bodies and global climate change. the application of microalgae for phycoremediation, their biomass use for human needs may increase sustainability and have a positive effect on the regional development. The experiments were carried out in order to establish the feasibility of treating the local municipal wastewater with microalgae consortia and their biomass potential for biofuel production. The results revealed that Chlorella/Scenedesmus consortium eliminated up to 99.7–99.9% of inorganic phosphorus and up to 88.6–96.4% of inorganic nitrogen from the wastewater within three weeks. The ammonium removal was more efficient than that of nitrate. Chlorella algae grew better in diluted, while Scenedesmus – in the concentrated wastewater. The consortium treated wastewater more efficiently than a single species. The maximum biomass (3.04 g/L) of algal consortium was estimated in concentrated wastewater. Algae accumulated 0.65–1.37 g of CO2/L per day in their biomass. Tus, Chlorella/Scenedesmus consortium is a promising tool for nutrients elimination from the local wastewater under the climatic conditions specific to Lithuania. However, none of the two species were able to accumulate lipids under the nitrogen starvation conditions.

Selection and characterization of microalgae with potential for nutrient removal from municipal wastewater and simultaneous lipid production

2020 ◽  
Vol 129 (5) ◽  
pp. 565-572 ◽  
Author(s):  
Tsuyoshi Aketo ◽  
Yumiko Hoshikawa ◽  
Daisuke Nojima ◽  
Yusuke Yabu ◽  
Yoshiaki Maeda ◽  
...  
Keyword(s):  
Nutrient Removal ◽  
Municipal Wastewater ◽  
Lipid Production

Municipal Wastewater Enriched with Trace Metals for Enhanced Lipid Production of the Biodiesel-Promising Microalga Scenedesmus obliquus

2019 ◽  
Vol 12 (4) ◽  
pp. 1127-1133 ◽  
Author(s):  
Song-Fang Han ◽  
Wenbiao Jin ◽  
Abd El-Fatah Abomohra ◽  
Renjie Tu ◽  
Xu Zhou ◽  
...  
Keyword(s):  
Trace Metals ◽  
Municipal Wastewater ◽  
Lipid Production ◽  
Scenedesmus Obliquus

Enhancement of Lipid Production of Chlorella Pyrenoidosa Cultivated in Municipal Wastewater by Magnetic Treatment

2016 ◽  
Vol 180 (6) ◽  
pp. 1043-1055 ◽  
Author(s):  
Songfang Han ◽  
Wenbiao Jin ◽  
Yangguang Chen ◽  
Renjie Tu ◽  
Abd El-Fatah Abomohra
Keyword(s):  
Municipal Wastewater ◽  
Lipid Production ◽  
Chlorella Pyrenoidosa ◽  
Magnetic Treatment

scholarly journals Comparative Performances of Microalgal-Bacterial Co-Cultivation to Bioremediate Synthetic and Municipal Wastewaters Whilst Producing Biodiesel Sustainably

Processes ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 1427
Author(s):  
Wai Hong Leong ◽  
Kunlanan Kiatkittipong ◽  
Worapon Kiatkittipong ◽  
Yoke Wang Cheng ◽  
Man Kee Lam ◽  
...  
Keyword(s):  
Nitrogen Removal ◽  
Municipal Wastewater ◽  
Methyl Esters ◽  
Lipid Production ◽  
Bacterial Consortium ◽  
Biodiesel Production ◽  
Synthetic Wastewater ◽  
Microbial Culture ◽  
Combustion Properties ◽  
Municipal Wastewaters

The potentiality of a microalgal-bacterial culture system was explored in bioremediating wastewater while generating biomass for biodiesel production. A pre-determined optimal activated sludge and microalgal ratio was adopted and cultivation performance was evaluated in both synthetic and municipal wastewater media for nitrogen removal along with biomass and lipid generation for biodiesel production. The microalgal-bacterial consortium grown in the municipal wastewater medium produced higher biomass and lipid yields than those in the synthetic wastewater medium. The presence of trace elements in the municipal wastewater medium, e.g., iron and copper, contributed to the upsurge of biomass, thereby leading to higher lipid productivity. Both the microbial cultures in the synthetic and municipal wastewater media demonstrated similar total nitrogen removal efficiencies above 97%. However, the nitrification and assimilation rates were relatively higher for the microbial culture in the municipal wastewater medium, corresponding to the higher microbial biomass growth. Accordingly, the feasibility of the microalgal-bacterial consortium for bioremediating real municipal wastewaters was attested in this study by virtue of higher biomass and lipid production. The assessment of fatty acid methyl esters (FAME) composition showed the mixed microbial biomasses comprised 80–93% C16 to C18 FAME species, signifying efficient fuel combustion properties for quality biodiesel requirements.

scholarly journals Evaluation of Scenedesmus rubescens for Lipid Production from Swine Wastewater Blended with Municipal Wastewater

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4895
Author(s):  
Joseph Christian Utomo ◽  
Young Mo Kim ◽  
Hyun Uk Cho ◽  
Jong Moon Park
Keyword(s):  
Nutrient Removal ◽  
Municipal Wastewater ◽  
Lipid Production ◽  
Lipid Productivity ◽  
Swine Wastewater ◽  
Practical Feasibility ◽  
Scenedesmus Rubescens

This study examined the feasibility of using non-sterilized swine wastewater for lipid production by an isolated microalga, Scenedesmus rubescens. Different dilution ratios using municipal wastewater as a diluent were tested to determine the suitable levels of microalgal growth in the wastewaters, its nutrient removal, and its lipid production. The highest lipid productivity (8.37 mg/L/d) and NH4+ removal (76.49%) were achieved in swine wastewater that had been diluted to 30 times using municipal wastewater. Various bacteria coexisted in the wastewaters during the cultivation of S. rubescens. These results suggest the practical feasibility of a system to produce lipids from swine wastewater by using microalgae.

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