Valorization of underutilized waste biomass from invasive species to produce biochar for energy and other value-added applications

2020 ◽  
Vol 186 ◽  
pp. 109596 ◽  
Author(s):  
Ashfaq Ahmed ◽  
Muhammad S. Abu Bakar ◽  
Rasyidah Hamdani ◽  
Young-Kwon Park ◽  
Su Shiung Lam ◽  
...  
Keyword(s):  
Invasive Species ◽  
Value Added ◽  
Waste Biomass

scholarly journals BIOBASED ECONOMY AVAILABLE BIOMASS RESOURCES IN THE CZECH REPUBLIC

2006 ◽  
Vol 7 (3) ◽  
pp. 155-162
Author(s):  
Zdenek Wegscheider ◽  
Mojmir Sabolovic
Keyword(s):  
Human Population ◽  
Crop Production ◽  
Building Materials ◽  
Agricultural Sector ◽  
Value Added ◽  
The United States ◽  
Scale Production ◽  
Waste Biomass ◽  
Biobased Materials ◽  
Biobased Economy

During the past two decades academia, industry and government have aimed more and more their attention to the phenomenon of a biobased economy providing society with non‐food biobased products. Now developing are biomass industries that make an array of commercial products, including fuels, electricity, chemicals, adhesives, lubricants and building materials, as well as new clothing fibers and plastics. Instead of fossil resources “green” biobased economy uses renewable grown or waste biomass. The lead supplying role to the biobased economy is held by a sector of agriculture, above all the crop production. In this manner an effective limitation of food surplus may occur in the EU market and enhance a value added to all vertical industry. Industrial‐scale production of biobased materials in time with consumers’ changing attitudes towards sustainable economic and social development may affect a wide array of consequences which nowadays can be tediously estimated. Food safety along with food security is one of the hottest issues especially in the United States, knowing that human population and biobased economy compete in using and processing a broad range of agricultural crops. An energy analysis aspect of this caloric relationship among agricultural sector on the supply side and human population and biobased economy on the other – demand side is assumed to represent the principal aim of this study. Consequently, there is the need to evaluate whether a quantity of Czech Crop Output Total is possible to nourish the Czech population and whether there is an available caloric surplus suitable as a biomass resource for biobased economy which is actually taking root.

scholarly journals Agroindustry Residues as a Source for Cellulose Nanofibers Production

2021 ◽  
Author(s):  
Mayra Mariño ◽  
Daniela Cypriano ◽  
Ljubica Tasic
Keyword(s):  
Crop Residues ◽  
Alkali Treatment ◽  
Cellulose Nanofibers ◽  
Value Added ◽  
Raw Material ◽  
Sodium Chlorite ◽  
Waste Biomass ◽  
Sugarcane Straw ◽  
Coffee Residues ◽  
Crop Waste

Our study was motivated by the large amount of crop residues produced in Brazil, which represent underutilized waste biomass and a serious threat to the environment because of the landfilling. For example, even though the corn crop is not popular in Brazil, it is produced in the area of around 18-20 million hectares with an average production of 5-6 t ha-1. That is the reason to seek for the crop residues value-added applications as proposed in the present study. Four Brazilian crop waste biomass: orange bagasse, corn husks, sugarcane straw and coffee residues were used for cellulose nanofibers (CNF) production. CNFs were prepared using alkali treatment, followed by bleaching with sodium chlorite and extraction with oxalic acid. All steps were applied under moderate conditions of temperature and pressure, such as temperature of 120 °C and below, water solutions with chemicals’ concentrations lower that 10% and short sonication pulses. CNFs with diameters in the range 50-70 nm were obtained and products from orange bagasse and corn husks presented high crystallinity indexes (CI), 0.72 and 0.75, respectively. The highest CNF yield was obtained from corn husks (38.5%) followed by sugarcane straw (24.0% with CI of 0.69). CNFs obtained from coffee residues showed a CI value of 0.65 after two bleaching steps. Different CNF morphologies were obtained according to the raw material. The four-crop waste biomass can be considered as excellent starting materials for CNF production in the four-steps process that adds new value to agro-industrial waste and might bring great economical valorization to Brazilian crops production.

scholarly journals Synthesis and characterization of rice husk biochar via hydrothermal carbonization for wastewater treatment and biofuel production

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Nazia Hossain ◽  
Sabzoi Nizamuddin ◽  
Gregory Griffin ◽  
Periasamy Selvakannan ◽  
Nabisab Mujawar Mubarak ◽  
...  
Keyword(s):  
Rice Husk ◽  
Agricultural Waste ◽  
Value Added ◽  
Hydrothermal Carbonization ◽  
Catalytic Performance ◽  
Biofuel Production ◽  
Suspension Stability ◽  
Waste Biomass ◽  
Suitable Material ◽  
Rice Husk Biochar

Abstract The recent implication of circular economy in Australia spurred the demand for waste material utilization for value-added product generations on a commercial scale. Therefore, this experimental study emphasized on agricultural waste biomass, rice husk (RH) as potential feedstock to produce valuable products. Rice husk biochar (RB) was obtained at temperature: 180 °C, pressure: 70 bar, reaction time: 20 min with water via hydrothermal carbonization (HTC), and the obtained biochar yield was 57.9%. Enhancement of zeta potential value from − 30.1 to − 10.6 mV in RB presented the higher suspension stability, and improvement of surface area and porosity in RB demonstrated the wastewater adsorption capacity. Along with that, an increase of crystallinity in RB, 60.5%, also indicates the enhancement of the catalytic performance of the material significantly more favorable to improve the adsorption efficiency of transitional compounds. In contrast, an increase of the atomic O/C ratio in RB, 0.51 delineated high breakdown of the cellulosic component, which is favorable for biofuel purpose. 13.98% SiO2 reduction in RB confirmed ash content minimization and better quality of fuel properties. Therefore, the rice husk biochar through HTC can be considered a suitable material for further application to treat wastewater and generate bioenergy.

Waste Biomass Utilization for Value-added Green Products

2019 ◽  
Vol 23 (14) ◽  
pp. 1497-1498 ◽  
Author(s):  
Umer Rashid ◽  
Abdul-Sattar Nizami ◽  
Mohammad Rehan
Keyword(s):  
Value Added ◽  
Waste Biomass ◽  
Green Products ◽  
Biomass Utilization

scholarly journals Successive Saccharification of Waste Paper as a Resource for Bio-product Development

2021 ◽  
Vol 20 (3) ◽  
Author(s):  
K.M.P. Mokatse ◽  
J.P.H. van Wyk
Keyword(s):  
Environmental Pollution ◽  
Incubation Period ◽  
Filter Paper ◽  
Fossil Fuels ◽  
Trichoderma Viride ◽  
Value Added ◽  
Sugar Concentration ◽  
Waste Paper ◽  
Waste Biomass ◽  
Incubation Periods

Environmental pollution and the exploitation of fossil-based products are topical issues that should be a matter of concern to the global population. The production of bio-based substances from waste biomass is a way to reduce the consumption of fossil fuels and limit environmental pollution. Enzymatic catalysed saccharification of cellulose is an important step for the bio-conversion of biomass such as waste paper into glucose that could be utilized as a feedstock for the production of value added bioproducts and this process can also be considered as an alternative route of waste management. During this study, fresh cellulase enzyme from Trichoderma viride was incubated separately with seven different waste paper materials during twelve successive incubation periods of 2 h each. The amount of sugar released from each paper material during each incubation period was determined. The highest sugar concentration released from each paper materials was produced during the first incubation period except the filter paper for which the highest amount of sugar was produced during the 9th period of incubation. During these optimum sugar producing incubation periods the highest total sugar concentration was released from brown envelope paper (3.3 mg.mL-1 followed by foolscap paper (3.0 mg.mL-1) and office paper (2.8 mg.mL-1) while the lowest amount of sugar was released from Pick ’n Pay paper (0.6 mg.mL-1). The relative saccharification percentage was also calculated which showed that filter paper produced the highest amounts of sugar followed by newspaper, and foolscap paper with advertising paper from a retailer. Pick ’n Pay offered the highest resistance towards cellulase catalysed bio-conversion into sugar.

scholarly journals Clean and Efficient Synthesis of High-Quality Silica From Rice Husk Ash

2021 ◽  
Author(s):  
Tang Baoyu ◽  
Zhang Long ◽  
Yu Zaiqian
Keyword(s):  
Rice Husk ◽  
Production Cost ◽  
Rice Husk Ash ◽  
Value Added ◽  
Industrial Effluents ◽  
Product Yield ◽  
Complex Salt ◽  
Chemical Precipitation ◽  
Process Efficiency ◽  
Waste Biomass

Abstract Rice husk ash derived from the rice husk, a renewable waste biomass resource from rice production can be used to produce high value-added silica materials with various applications. But present technologies suffer the shortages of using inorganic acid as the precipitating agent, complex salt-containing wastewater post-treatment, higher production cost, lower product quality, and without the recycling of process additives. In this paper, improved clean chemical precipitation characterizing of recycling the by-product and surfactant used is developed with the highest silica product yield of 99.3%, pore size (21-35 nm), and specific surface area (196-462 m2/g). After the by-product solution is reused 5 times, the yield of silica can still reach 99.1%. The recovery yield of surfactant is 95.3%. The properties of the prepared silica meet the standard of silica for specific applications. The process characterized the recycling of the by-product and surfactant in the process, greener CO2 precipitant, ensuring the greenness, process efficiency, and low production cost. This opens up a new industrialization practical way for up-grading utilization of waste biomass and CO2 containing industrial effluents.

Current advances on waste biomass transformation into value-added products

2020 ◽  
Vol 104 (11) ◽  
pp. 4757-4770 ◽  
Author(s):  
Wubliker Dessie ◽  
Xiaofang Luo ◽  
Meifeng Wang ◽  
Luya Feng ◽  
Yunhui Liao ◽  
...  
Keyword(s):  
Value Added ◽  
Waste Biomass ◽  
Biomass Transformation ◽  
Value Added Products
Sign in / Sign up

Export Citation Format

Share Document