Exploring the Possibility of Biofuel Production from By-Products and Wastes Generated from Date Industry

Dates ◽  
2012 ◽  
pp. 284-295
Keyword(s):  
Biofuel Production ◽  
By Products

scholarly journals Monomers, Materials and Energy from Coffee By-Products: A Review

2021 ◽  
Vol 13 (12) ◽  
pp. 6921
Author(s):  
Laura Sisti ◽  
Annamaria Celli ◽  
Grazia Totaro ◽  
Patrizia Cinelli ◽  
Francesca Signori ◽  
...  
Keyword(s):  
Circular Economy ◽  
Food Industry ◽  
Food Packaging ◽  
Low Cost ◽  
Biofuel Production ◽  
Material Technology ◽  
Coffee Production ◽  
Coffee Pulp ◽  
Coffee Waste ◽  
By Products

In recent years, the circular economy and sustainability have gained attention in the food industry aimed at recycling food industrial waste and residues. For example, several plant-based materials are nowadays used in packaging and biofuel production. Among them, by-products and waste from coffee processing constitute a largely available, low cost, good quality resource. Coffee production includes many steps, in which by-products are generated including coffee pulp, coffee husks, silver skin and spent coffee. This review aims to analyze the reasons why coffee waste can be considered as a valuable source in recycling strategies for the sustainable production of bio-based chemicals, materials and fuels. It addresses the most recent advances in monomer, polymer and plastic filler productions and applications based on the development of viable biorefinery technologies. The exploration of strategies to unlock the potential of this biomass for fuel productions is also revised. Coffee by-products valorization is a clear example of waste biorefinery. Future applications in areas such as biomedicine, food packaging and material technology should be taken into consideration. However, further efforts in techno-economic analysis and the assessment of the feasibility of valorization processes on an industrial scale are needed.

scholarly journals Critical Issues and Opportunities for Producing Biomethane in Italy

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2431
Author(s):  
Roberto Murano ◽  
Natascia Maisano ◽  
Roberta Selvaggi ◽  
Gioacchino Pappalardo ◽  
Biagio Pecorino
Keyword(s):  
Anaerobic Digestion ◽  
Case Studies ◽  
Regulatory Framework ◽  
Biofuel Production ◽  
Political Incentives ◽  
Critical Issues ◽  
Biogas Plants ◽  
High Level ◽  
By Products ◽  
Lack Of Knowledge

Nowadays, most Italian biogas produces electricity even though recent political incentives are promoting biomethane from biogas by “upgrading” it. The aim of this paper is to focus on the regulatory framework for producing biomethane from new or already-existent anaerobic digestion plants. The complexity and lack of knowledge of the regulations on biofuel production and of anaerobic digested biomethane from waste and by-products create difficulties of both interpretation and application. Consequently, the aim of this paper is to analyze the regulations for producing biomethane, underline the critical issues and opportunities, and evaluate whether an electrical plant built in the last 10 years in Italy can really be converted to a biomethane plant, thereby lengthening its lifespan. Three case studies were considered to look more closely into applying Italian biomethane incentives and to simulate the types of incentivization in agriculture with examples based on certain fuel types typical of a standard biomethane plant of 500 standard cubic meter per hour. All the considered cases put in evidence that biomethane is a further opportunity for development with a high level of efficiency for all biogas producers, especially for many biogas plants whose incentivization period is about to finish.

Effects of by-products from biofuel production on the performance of growing fattening bulls

2010 ◽  
Vol 161 (3-4) ◽  
pp. 132-139 ◽  
Author(s):  
Ulrich Meyer ◽  
Annett Schwabe ◽  
Sven Dänicke ◽  
Gerhard Flachowsky
Keyword(s):  
Biofuel Production ◽  
By Products

Biochar Decreases Atrazine and Pendimethalin Preemergence Herbicidal Activity

2015 ◽  
Vol 29 (3) ◽  
pp. 359-366 ◽  
Author(s):  
Neeta Soni ◽  
Ramon G. Leon ◽  
John E. Erickson ◽  
Jason A. Ferrell ◽  
Maria L. Silveira
Keyword(s):  
Weed Control ◽  
Linear Regression Analysis ◽  
Cropping System ◽  
Herbicidal Activity ◽  
Field Conditions ◽  
Biofuel Production ◽  
Sorption Experiment ◽  
Herbicide Activity ◽  
By Products

Biochar and vinasse are by-products of biofuel production that can be used as soil amendments. However, their addition to the soil might affect PRE herbicide activity. Although studies have shown that biochar has a high herbicide adsorption capacity, there is little information available about biochar effect on weed control especially under field conditions. Therefore, the objective of this study was to determine the influence of biochar and vinasse application on atrazine and pendimethalin availability and herbicide activity underin vitroand field conditions.In vitroatrazine and pendimethalin herbicidal activities were not influenced by vinasse addition, but biochar application reduced atrazine and pendimethalin injury for all evaluated species. A sorption experiment confirmed high affinity of biochar for atrazine and pendimethalin. Linear regression analysis showed that the slope for atrazine and pendimethalin adsorption was 16 and 4 times higher in soil with biochar than in soil alone. Under field conditions, biochar at 0.5 kg m−2reduced atrazine and pendimethalin weed control 75% and 60%, respectively. These results suggested that the use of biochar as a soil amendment in cropping system could decrease PRE herbicide efficacy. Therefore, mitigating practices such as the use of higher rates or reliance on POST herbicides and cultivation might be necessary to ensure proper weed control.

Vinasse and Biochar Effects on Germination and Growth of Palmer Amaranth (Amaranthus palmeri), Sicklepod (Senna obtusifolia), and Southern Crabgrass (Digitaria ciliaris)

2014 ◽  
Vol 28 (4) ◽  
pp. 694-702 ◽  
Author(s):  
Neeta Soni ◽  
Ramon G. Leon ◽  
John E. Erickson ◽  
Jason A. Ferrell ◽  
Maria L. Silveira ◽  
...  
Keyword(s):  
Sandy Loam ◽  
Soil Amendments ◽  
Palmer Amaranth ◽  
Biofuel Production ◽  
Weed Species ◽  
Weed Communities ◽  
Loam Soil ◽  
Four Levels ◽  
Germination And Growth ◽  
By Products

Vinasse and biochar are by-products of biofuel production that can be used as sources of nutrients to crops or soil amendments to improve soil quality. Despite the recent interest in biochar and vinasse effects on soil properties, little is known about their effect on weed communities. We hypothesized that the addition of biochar and vinasse to the soil could affect weed seed germination and growth, and that different weed species would show different responses to these soil amendments. Therefore, the objectives of this study were to determine the effects of vinasse and biochar on the germination and growth of Palmer amaranth, sicklepod, and southern crabgrass. The study was conducted under laboratory and growth chamber conditions. Treatments consisted of four levels of vinasse (0, 10, 20, and 40 L m−2) and biochar (0, 0.5, 2.5, and 12.5 kg m−2) applied to a sandy loam soil. Biochar at 0.5 and 2.5 kg m−2increased germination of Palmer amaranth but had no effect on sicklepod and southern crabgrass. Vinasse reduced germination of all species. However, sicklepod germination was less affected by vinasse at 10 and 20 L m−2than the other two species. Vinasse at 40 L m−2decreased Palmer amaranth, southern crabgrass and sicklepod germination 57, 26 and 87%, respectively. Biochar had no consistent effect on the vegetative growth of the species studied. Vinasse at 10 L m−2stimulated growth of sicklepod and southern crabgrass compared to the nontreated control. Our results suggested that vinasse used as a soil amendment could affect weed community structure by decreasing germination of susceptible species, but plants and weed species that can get established in vinasse amended soils might show higher growth rates.

scholarly journals Biofuel Production by Fermentation of Water Plants and Agricultural Lignocellulosic by-Products

2016 ◽  
Vol 70 ◽  
pp. 12005 ◽  
Author(s):  
Yaakov Anker ◽  
Faina Nakonechny ◽  
Betty Niazov ◽  
Svetlana Lugovskoy ◽  
Marina Nisnevitch
Keyword(s):  
Biofuel Production ◽  
Water Plants ◽  
By Products

scholarly journals Organic waste as a sustainable feedstock for platform chemicals

2017 ◽  
Vol 202 ◽  
pp. 175-195 ◽  
Author(s):  
M. Coma ◽  
E. Martinez-Hernandez ◽  
F. Abeln ◽  
S. Raikova ◽  
J. Donnelly ◽  
...  
Keyword(s):  
Algal Blooms ◽  
Organic Waste ◽  
Anaerobic Fermentation ◽  
Biofuel Production ◽  
High Complexity ◽  
Waste Streams ◽  
Platform Chemicals ◽  
Hydrothermal Processes ◽  
By Products ◽  
Substrate Types

Biorefineries have been established since the 1980s for biofuel production, and there has been a switch lately from first to second generation feedstocks in order to avoid the food versus fuel dilemma. To a lesser extent, many opportunities have been investigated for producing chemicals from biomass using by-products of the present biorefineries, simple waste streams. Current facilities apply intensive pre-treatments to deal with single substrate types such as carbohydrates. However, most organic streams such as municipal solid waste or algal blooms present a high complexity and variable mixture of molecules, which makes specific compound production and separation difficult. Here we focus on flexible anaerobic fermentation and hydrothermal processes that can treat complex biomass as a whole to obtain a range of products within an integrated biorefinery concept.

scholarly journals Surface tension and wetting properties of rapeseed oil to biofuel conversion by-products

2018 ◽  
Vol 32 (2) ◽  
pp. 247-252 ◽  
Author(s):  
Siemowit Muszyński ◽  
Agnieszka Sujak ◽  
Andrzej Stępniewski ◽  
Krzysztof Kornarzyński ◽  
Marta Ejtel ◽  
...  
Keyword(s):  
Surface Tension ◽  
Physical Properties ◽  
Rapeseed Oil ◽  
Contact Angles ◽  
Biofuel Production ◽  
Technical Grade ◽  
Accurate Analysis ◽  
Wetting Properties ◽  
Fuel Blends ◽  
By Products

AbstractThis work presents a study on the surface tension, density and wetting behaviour of distilled glycerol, technical grade glycerol and the matter organic non-glycerin fraction. The research was conducted to expand the knowledge about the physical properties of wastes from the rapeseed oil biofuel production. The results show that the densities of technical grade glycerol (1.300 g cm-3) and distilled glycerol (1.267 g cm-3) did not differ and were significantly lower than the density of the matter organic non-glycerin fraction (1.579 g cm-3). Furthermore, the surface tension of distilled glycerol (49.6 mN m-1) was significantly higher than the matter organic non-glycerin fraction (32.7 mN m-1) and technical grade glycerol (29.5 mN m-1). As a result, both technical grade glycerol and the matter organic non-glycerin fraction had lower contact angles than distilled glycerol. The examined physical properties of distilled glycerol were found to be very close to that of the commercially available pure glycerol. The results suggest that technical grade glycerol may have potential application in the production of glycerol/fuel blends or biosurfactants. The presented results indicate that surface tension measurements are more useful when examining the quality of biofuel wastes than is density determination, as they allow for a more accurate analysis of the effects of impurities on the physical properties of the biofuel by-products.

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