Influence of sequential HTC pre-treatment and pyrolysis on wet food-industry wastes: Optimisation toward nitrogen-rich hierarchical carbonaceous materials intended for use in energy storage solutions

2021 ◽  
pp. 151648
Author(s):  
P.J. Arauzo ◽  
P.A. Maziarka ◽  
K.A. Schoder ◽  
J. Pfersich ◽  
F. Ronsse ◽  
...  
Keyword(s):  
Energy Storage ◽  
Food Industry ◽  
Carbonaceous Materials ◽  
Storage Solutions ◽  
Pre Treatment

scholarly journals Optimisation of Protein Recovery from Arthrospira platensis by Ultrasound-Assisted Isoelectric Solubilisation/Precipitation

Processes ◽  
2020 ◽  
Vol 8 (12) ◽  
pp. 1586
Author(s):  
Ana Sánchez-Zurano ◽  
Ainoa Morillas-España ◽  
Cynthia Victoria González-López ◽  
Tomás Lafarga
Keyword(s):  
Food Industry ◽  
Functional Foods ◽  
Osmotic Shock ◽  
Arthrospira Platensis ◽  
Extraction Time ◽  
Protein Recovery ◽  
Solvent Ratio ◽  
Total Proteins ◽  
Cell Wall Disruption ◽  
Pre Treatment

A response surface methodology was used to optimise the solubilisation and precipitation of proteins from the cyanobacterium Arthrospira platensis. Two separate experiments were designed and conducted in a sequential manner. Protein solubilisation was affected by pH, extraction time, and biomass to solvent ratio (p < 0.001). Although spray-drying and the osmotic shock suffered when resuspending the dried biomass into distilled water led to a certain degree of cell wall disruption, the amount of protein that could be solubilised without an additional disruption step was in the range 30–60%. Sequential extractions improved protein solubilisation by less than 5%. For this reason, a pre-treatment based on sonication (400 W, 24 kHz, 2 min) had to be used, allowing the solubilisation of 96.2% of total proteins. Protein precipitation was affected by both pH and extraction time (p < 0.001). The optimised precipitation conditions, which were pH 3.89 over 45 min, led to a protein recovery of 75.2%. The protein content of the extract was close to 80%, which could be further increased by using different purification steps. The proteins extracted could be used in the food industry as technofunctional ingredients or as a source of bioactive hydrolysates and peptides for functional foods and nutraceuticals.

Alkaline pre-treatment of waste chestnut shell from a food industry to enhance cadmium, copper, lead and zinc ions removal

2012 ◽  
Vol 184 ◽  
pp. 147-155 ◽  
Author(s):  
Gonzalo Vázquez ◽  
Olga Mosquera ◽  
M. Sonia Freire ◽  
Gervasio Antorrena ◽  
Julia González-Álvarez
Keyword(s):  
Food Industry ◽  
Zinc Ions ◽  
Lead And Zinc ◽  
Chestnut Shell ◽  
Pre Treatment ◽  
Copper Lead

scholarly journals IoT Energy Storage - A Forecast

2018 ◽  
Vol 5 (3-4) ◽  
pp. 43-51 ◽  
Author(s):  
Fredrik Häggström ◽  
Jerker Delsing
Keyword(s):  
Energy Storage ◽  
Wireless Communication ◽  
Storage Efficiency ◽  
Power Devices ◽  
Energy Harvesters ◽  
Current Trends ◽  
Storage Solutions ◽  
Iot Devices ◽  
Energy Storage Efficiency ◽  
Current Paradigm

Abstract Exponential growth in computing, wireless communication, and energy storage efficiency is key to allowing smaller and scalable IoT solutions. These advancements have made it possible to power devices from energy harvesters (EH) and explore other energy storage solutions that can increase the lifetime and robustness of IoT devices. We summarize current trends and limits for the current paradigm as the basis of our forecast. The trend shows that conventional ceramic capacitors are sufficient for energy storage for today’s EH powered wireless IoT devices and that in the future, IoT devices can either perform more advanced tasks with their current volume or be shrunk in size.

scholarly journals The Impacts of High V2G Participation in a 100% Renewable Åland Energy System

Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2206 ◽  
Author(s):  
Michael Child ◽  
Alexander Nordling ◽  
Christian Breyer
Keyword(s):  
Energy Storage ◽  
Energy System ◽  
Geographic Area ◽  
Offshore Wind ◽  
Sustainable Mobility ◽  
Vehicle To Grid ◽  
Storage Solutions ◽  
Hourly Data ◽  
High Participation ◽  
End Use

A 100% renewable energy (RE) scenario featuring high participation in vehicle-to-grid (V2G) services was developed for the Åland islands for 2030 using the EnergyPLAN modelling tool. Hourly data was analysed to determine the roles of various energy storage solutions, notably V2G connections that extended into electric boat batteries. Two weeks of interest (max/min RE) generation were studied in detail to determine the roles of energy storage solutions. Participation in V2G connections facilitated high shares of variable RE on a daily and weekly basis. In a Sustainable Mobility scenario, high participation in V2G (2750 MWhe) resulted in less gas storage (1200 MWhth), electrolyser capacity (6.1 MWe), methanation capacity (3.9 MWhgas), and offshore wind power capacity (55 MWe) than other scenarios that featured lower V2G participation. Consequently, total annualised costs were lower (225 M€/a). The influence of V2G connections on seasonal storage is an interesting result for a relatively cold, northern geographic area. A key point is that stored electricity need not only be considered as storage for future use by the grid, but V2G batteries can provide a buffer between generation of intermittent RE and its end-use. Direct consumption of intermittent RE further reduces the need for storage and generation capacities.

BODIPY-based Carbonaceous Materials for High Performance Electrical Capacitive Energy Storage

2018 ◽  
Vol 13 (20) ◽  
pp. 3051-3056 ◽  
Author(s):  
De-Gao Wang ◽  
Huan Wang ◽  
Min Song ◽  
Guipeng Yu ◽  
Gui-Chao Kuang
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Carbonaceous Materials ◽  
Capacitive Energy Storage

scholarly journals Net-Metering Compared to Battery-Based Electricity Storage in a Single-Case PV Application Study Considering the Lithuanian Context

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2286
Author(s):  
Joanna Aleksiejuk-Gawron ◽  
Saulė Milčiuvienė ◽  
Julija Kiršienė ◽  
Enrique Doheijo ◽  
Diego Garzon ◽  
...  
Keyword(s):  
Energy Storage ◽  
Net Present Value ◽  
Residential Buildings ◽  
Single Case ◽  
Attractive Alternative ◽  
Net Metering ◽  
Self Sufficiency ◽  
Payback Time ◽  
Storage Solutions ◽  
National Networks

Further increases in the number of photovoltaic installations in industry and residential buildings will require technologically and economically flexible energy storage solutions. Some countries utilize net-metering strategies, which use national networks as “virtual batteries.” Despite the financial attractiveness, net-metering faces many technological and economical challenges. It could also lead to the negative tendencies in prosumer behavior, such as a decrease in motivation for the self-consumption of photovoltaic (PV)-generated electricity. Batteries, which are installed on the prosumer’s premises, could be a solution in a particular case. However, the price for battery-based storage solutions is currently sufficiently unattractive for the average prosumer. This paper aimed to present a comparison of the economic and energy related aspects between net-metering and batteries for a single case study by considering the Lithuanian context. The net present value, degree of self-sufficiency, internal rate of return, payback time, and quantified reduction of carbon emission were calculated using a specially developed Prosumer solution simulation tool (Version 1.1, Delloite, Madrid, Spain) for both the PV and net-metering and PV and batteries cases. The received results highlight that the battery-based energy storage systems are currently not an attractive alternative in terms of price where net-metering is available; a rather radical decrease in the installation price for batteries is required.

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