Insights into the microalgae cultivation technology and harvesting process for biofuel production: A review

2019 ◽  
Vol 115 ◽  
pp. 109361 ◽  
Author(s):  
Uganeeswary Suparmaniam ◽  
Man Kee Lam ◽  
Yoshimitsu Uemura ◽  
Jun Wei Lim ◽  
Keat Teong Lee ◽  
...  
Keyword(s):  
Biofuel Production ◽  
Microalgae Cultivation ◽  
Cultivation Technology ◽  
Harvesting Process

scholarly journals Cultivation of Oily Microalgae for the Production of Third-Generation Biofuels

2019 ◽  
Vol 11 (19) ◽  
pp. 5424 ◽  
Author(s):  
Preeti Pal ◽  
Kit Wayne Chew ◽  
Hong-Wei Yen ◽  
Jun Wei Lim ◽  
Man Kee Lam ◽  
...  
Keyword(s):  
Fossil Fuels ◽  
Biofuel Production ◽  
Economic Sustainability ◽  
Microalgae Cultivation ◽  
Promising Alternative ◽  
New Methods ◽  
Oleaginous Microalgae ◽  
Accumulation Capacity ◽  
Metabolic Properties ◽  
Harvesting Process

Biofuel production by oleaginous microalgae is a promising alternative to the conventional fossil fuels. Many microalgae species have been investigated and deemed as potential renewable sources for the production of biofuel, biogas, food supplements and other products. Oleaginous microalgae, named for their ability to produce oil, are reported to store 30–70% of lipid content due to its metabolic properties under nutrient starvation conditions. This review presents the assortment of the research studies focused on biofuel production from oleaginous microalgae. The new methods and technologies developed for oleaginous microalgae cultivation to improve their biomass content and lipid accumulation capacity were reviewed. The production of renewable, carbon neutral, bio-based or microalgae-based transport fuels are necessary for environmental protection and economic sustainability. Microalgae are a significant source of renewable biodiesel because of their ability to produce oils in the presence of sunlight more efficiently than that of crop oils. This review will provide the background to understanding the bottlenecks and the need for improvement in the cultivation or harvesting process for oleaginous microalgae.

scholarly journals Desain Kontrol PHOTOVOLTAIC BASED AUTOMATIC RICE THRESER MACHINE TO HELP FARMERS IN PANDEMI COVIC 19

2021 ◽  
Vol 3 (1) ◽  
pp. 1-4
Author(s):  
Ilmi Rizki Imaduddin Imaduddin
Keyword(s):  
Rice Fields ◽  
Solar Panel ◽  
Grain Weight ◽  
Average Value ◽  
Large Potential ◽  
Cultivation Technology ◽  
Average Current ◽  
Harvesting Process ◽  
A Current ◽  
Rice Processing

The rice thresher machine is an important part of the rice processing process. Before the harvesting process, the rice fields are drained for 7-10 days before the harvest period by using a sharp sickle to cut the base of the stems, then the harvest is stored in a container or lined place. The low application of cultivation technology can be seen from the large potential gap between production. With the creation of this system, the process of threshing rice from the stalks can be done automatically, so that this system is expected to be able to provide the process of threshing rice from the stalks to be faster, easier, more efficient and safe for workers. data from the presentation of rice tresher slender yields 223.17 S, at puly rpm the average value produced is 32.82 S, with an average voltage of 11 V and an average current of 0.18 A. 9.13 minutes, with initial grain weight of 15 kg with an average threshing yield of 6.6 kg, with a threshing capacity of 42.2 kg / hour. And the current and voltage data on the solar panel and the resulting charging, the highest voltage is 12 V with a current of 1.69 A which occurs at 12.30 Wib.

Prospect Analysis of the Coupling System of Low-Quality Biomass Treatment and Microalgae Biofuel Production

2011 ◽  
Vol 137 ◽  
pp. 269-274
Author(s):  
Xiao Dan Wu ◽  
Yu Huan Liu ◽  
Rong Sheng Ruan ◽  
Yi Qin Wan ◽  
Jin Sheng Zhang ◽  
...  
Keyword(s):  
Hot Spots ◽  
Animal Feed ◽  
Organic Fertilizer ◽  
Value Added ◽  
Calorific Value ◽  
Biofuel Production ◽  
Human Beings ◽  
Microalgae Cultivation ◽  
Coupling System ◽  
New Energy

Nowadays human beings face the crisis and challenge of environmental pollution and energy shortage. The green treatment of low-quality biomass (such as wastewater, waste gas and solid waste), and development of microalgae biofuel are hot spots of pollution treatment and new energy development respectively. Base on the coupling system of microalgae cultivation by slurry (the product of anaerobic digestion of low-quality biomass) and biofuel production by microalgae, it is most likely to achieve an organic integration of the two hot spots, obtaining alternative liquid fuel and realizing slurry purification finally. In addition, there are added benefits can be obtained from the system, such as some high value-added products, animal feed, organic fertilizer, high-absorption materials, and so on. In this paper, combining the latest research advances of our research group, we made a brief analysis of the feasibility of microalgae cultivation by slurry, the characteristics of microalgae cultivation and lipid accumulation, the refining technologies of high calorific value fuel from microalgae, etc., and prospected the coupling system of low-quality biomass treatment and microalgae biofuel production.

scholarly journals A Review on Synchronous Microalgal Lipid Enhancement and Wastewater Treatment

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7687
Author(s):  
Visva Bharati Barua ◽  
Mariya Munir
Keyword(s):  
Wastewater Treatment ◽  
Efficient Solution ◽  
Culture Media ◽  
Lipid Production ◽  
Cost Effective ◽  
Biofuel Production ◽  
Microalgae Cultivation ◽  
Photosynthetic Eukaryotes ◽  
Biomass Enhancement ◽  
Microalgae Biomass

Microalgae are unicellular photosynthetic eukaryotes that can treat wastewater and provide us with biofuel. Microalgae cultivation utilizing wastewater is a promising approach for synchronous wastewater treatment and biofuel production. However, previous studies suggest that high microalgae biomass production reduces lipid production and vice versa. For cost-effective biofuel production from microalgae, synchronous lipid and biomass enhancement utilizing wastewater is necessary. Therefore, this study brings forth a comprehensive review of synchronous microalgal lipid and biomass enhancement strategies for biofuel production and wastewater treatment. The review emphasizes the appropriate synergy of the microalgae species, culture media, and synchronous lipid and biomass enhancement conditions as a sustainable, efficient solution.

scholarly journals Growth, Development And Productivity Of Giant Miscanthus

2019 ◽  
Author(s):  
U. Nedilska
Keyword(s):  
Plant Growth ◽  
Growth And Development ◽  
Raw Material ◽  
Biofuel Production ◽  
Planting Density ◽  
Forest Steppe ◽  
Plant Growth And Development ◽  
Maximum Value ◽  
Giant Miscanthus ◽  
Cultivation Technology

Miscanthus giant is one of the perspective crops for the soil and climatic zone of Ukraine, which is grown as raw material for processing into solid biofuels. However, for industrial use there is no cultivation technology adapted to the conditions of Ukraine. One of the promising directions is to study the conditions of giant miscanthus productivity increasing on the basis of determining the features of plant growth and development, improving the elements of cultivation technology in the conditions of the Western Forest Steppe. As a result of the observations and calculations, the peculiarities of plant growth and development in the first and subsequent years of vegetation and the formation of the above ground mass (biomass) of giant miscanthus were analyzed, depending on the soil and climatic conditions of cultivation. The regularities of growth conditions dependens, development and formation of miscanthus productivity due to influence of agrotechnical factors of planting density and mass of rhizomes are established in the study. Biometric indices of giant miscanthus plants in sprout height for October make a maximum value of 159 cm for planting density of 15 thousand plants / ha with mass of rhizomes 41-70 g. The maximum value of the biomass yield indicator was noted for planting density study of 15,000 units / ha with rhizomes of 41-70 g, which averaged 18.5 tons / ha during the years of analysis. Based on the results of the research, for providing a high productivity of miscanthus giant plants as raw material for Western Forest-Steppe biofuel production, the planting density of 15 thousand plants / ha with rhizomes 41-70 g is recommended. Improved technology for the cultivation of giant miscanthus for biofuel production is proposed

scholarly journals Harvesting of Chlorella sp. by Co-cultivation with Some Fil-amentous Fungi

2018 ◽  
Vol 28 (2) ◽  
pp. 35
Author(s):  
Rana H. Hameed Al-Shammari
Keyword(s):  
Aspergillus Terreus ◽  
Research Area ◽  
Economic Feasibility ◽  
Biofuel Production ◽  
Process Time ◽  
Microalgae Harvesting ◽  
Chlorella Sp ◽  
Lower Glucose ◽  
Harvesting Process ◽  
New Research

Algae are play a major role as straight producers of biofuels, so expansion of a new. harvesting-technology is important to achieve economic feasibility of biofuel production from algae.. Fungal pelletization-assisted.. Microalgal harvesting has Emerged as new research area for decreasing the harvesting cost and energy inputs in the algae-to-biofuel method. The present study tried to opti-mize process circumstances as (substrate inputs, process time and pH). Through choice of a ro-bust fungal strain. Four fungal strains (Aspergillus terreus, Trichoderma sp., Mucor sp. and Rhi-zopus sp.) were screened for their pelletizing efficiency in fresh/supplemented chu-10 with select-ed media nutrient (glucose, nitrogen and phosphorous). Results showed that Aspergillus terreus was the most efficient strain for pelletizing in the nutrient supplemented chu-10 with its neutral pH (7) and acidic pH (5). Stimulatingly, A. terreus was capable to harvest nearly 100 % of the Clorella sp. cells (1×106 spore/ml at optical density (OD) approximately 2.5 initial working algal concentration) within only 24 h. at supplementation of (10 g/l glucose, 2.5 mg/l aNH4NO3 and 0.5 mg/l mK2HPO4) also performed well at lower glucose level (5 g/l) can also results in similar har-vesting but its need relatively higher incubation time. The procedure kinetics in term of harvesting index (H. I) as well as the variation of residual glucose and pH with time was also studied. The mechanism of harvesting process was studied through microscopic, examination. A. terreus strain investigated in this study could emerge as an efficient, sustainable and economically viable tool in microalgae harvesting for biofuel production and time conservation

Sign in / Sign up

Export Citation Format

Share Document