Synergy of biofuel production with waste remediation along with value-added co-products recovery through microalgae cultivation: A review of membrane-integrated green approach

2020 ◽  
Vol 698 ◽  
pp. 134169 ◽  
Author(s):  
Ramesh Kumar ◽  
Alak Kumar Ghosh ◽  
Parimal Pal
Keyword(s):  
Value Added ◽  
Biofuel Production ◽  
Microalgae Cultivation ◽  
Waste Remediation ◽  
Green Approach

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.

Biohydrogen production from used diapers: Evaluation of effect of temperature and substrate conditioning

2017 ◽  
Vol 35 (3) ◽  
pp. 267-275 ◽  
Author(s):  
PX Sotelo-Navarro ◽  
HM Poggi-Varaldo ◽  
SJ Turpin-Marion ◽  
A Vázquez-Morillas ◽  
M Beltrán-Villavicencio ◽  
...  
Keyword(s):  
Value Added ◽  
Clean Energy ◽  
Solid Substrate ◽  
Biofuel Production ◽  
Biohydrogen Production ◽  
Effect Of Temperature ◽  
Batch Reactors ◽  
Disposable Diapers ◽  
Batch Bioreactors ◽  
H2 Yield

This research assessed the viability to use disposable diapers as a substrate for the production of biohydrogen, a valuable clean-energy source. The important content of cellulose of disposable diapers indicates that this waste could be an attractive substrate for biofuel production. Two incubation temperatures (35 °C and 55 °C) and three diaper conditioning methods (whole diapers with faeces, urine, and plastics, WD; diapers without plastic components, with urine and faeces, DWP; diapers with urine but without faeces and plastic, MSD) were tested in batch bioreactors. The bioreactors were operated in the solid substrate anaerobic hydrogenogenic fermentation with intermittent venting mode (SSAHF-IV). The batch reactors were loaded with the substrate at ca. 25% of total solids and 10% w/w inoculum. The average cumulative bioH2 production followed the order WD > MSD > DWP. The bio-H2 production using MSD was unexpectedly higher than DWP; the presence of plastics in the first was expected to be associated to lower degradability and H2 yield. BioH2 production at 55 °C was superior to that of 35 °C, probably owing to a more rapid microbial metabolism in the thermophilic regime. The results of this work showed low yields in the production of H2 at both temperatures compared with those reported in the literature for municipal and agricultural organic waste. The studied process could improve the ability to dispose of this residue with H2 generation as the value-added product. Research is ongoing to increase the yield of biohydrogen production from waste disposable diapers.

scholarly journals Enhancing Microalgae Cultivation using Biowastes as Growth Media for High Added-Value Co-Products Generation

2021 ◽  
Author(s):  
Mohammed Amouri ◽  
Fayrouz Kaidi ◽  
Amel Ounnar ◽  
Majda Aziza
Keyword(s):  
Cheese Whey ◽  
Pollution Abatement ◽  
Value Added ◽  
Drainage Water ◽  
Pigment Content ◽  
Added Value ◽  
Carotenoid Content ◽  
Growth Media ◽  
Microalgae Cultivation ◽  
Ph Variation

Abstract This paper aims to study a new growth media using cheese whey and drainage water from agriculture for indigenous microalgae cultivation for value-added product generation. In this context, four combinations are studied beside the BG11 as reference, where BG11/Cheese whey (60/40, %v/v), drainage water 100%, drainage water/Cheese whey (60/40, % v/v), and Cheese whey 100 % have been used. Moreover, investigated parameters are biomass dry weight, pH variation, total chlorophyll and carotenoid content. Results showed that used growth media have a significant impact on microaglae culture, particularly in terms of cells growth, pigment content and pH variation. Moreover, the mixture BG11/Cheese whey (60/40, %v/v) shows the best impact for total chlorophylls and carotenoids content. Likewise, the mixture cheese whey/drainage water (60/40, %v/v) presents a positive effect on pigments content. The use of cheese whey and drainage water lead to enhance the biomass and pigment production. This study showed that using agro-industrial C-rich wastes and drainage water enhanced microalgae biomass and pigment content, thus contributing to pollution abatement. This will contribute to both reducing the cost of production and resources recycling.

A green approach to the fabrication of a TiO2/NiAl-LDH core–shell hybrid photocatalyst for efficient and selective solar-powered reduction of CO2 into value-added fuels

2020 ◽  
Vol 8 (16) ◽  
pp. 8020-8032 ◽  
Author(s):  
Wan-Kuen Jo ◽  
Satyanarayana Moru ◽  
Surendar Tonda
Keyword(s):  
High Activity ◽  
Value Added ◽  
Solar Fuels ◽  
Core Shell ◽  
Green Approach ◽  
Solar Powered ◽  
Reduction Of Co2 ◽  
Hybrid Photocatalyst

A green approach is proposed to fabricate a TiO2/LDH core–shell hybrid as a potential catalyst for photoreduction of CO2 to solar fuels with high activity and selectivity.

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.

scholarly journals Solvent-induced membrane stress in biofuel production: molecular insights from small-angle scattering and all-atom molecular dynamics simulations

2020 ◽  
Vol 22 (23) ◽  
pp. 8278-8288 ◽  
Author(s):  
Micholas Dean Smith ◽  
Sai Venkatesh Pingali ◽  
James G. Elkins ◽  
Dima Bolmatov ◽  
Robert F. Standaert ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Small Angle ◽  
Value Added ◽  
Small Angle Scattering ◽  
Biofuel Production ◽  
Membrane Stress ◽  
Induced Membrane ◽  
Angle Scattering ◽  
Green Fuels ◽  
Dynamics Simulations

Small-angle-scattering and molecular simulation reveal the disruptive impact of organic solvents on model microbial membranes limiting the economical production of green fuels and value-added chemicals from lignocellulose (Image by: Jill Hemman, ORNL).

scholarly journals Design of a combined ionosolv-organosolv biomass fractionation process for biofuel production and high value-added lignin valorisation

2020 ◽  
Vol 22 (15) ◽  
pp. 5161-5178
Author(s):  
Meng Chen ◽  
Francisco Malaret ◽  
Anton E. J. Firth ◽  
Pedro Verdía ◽  
Aida R. Abouelela ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Value Added ◽  
Biofuel Production ◽  
Protic Ionic Liquids ◽  
Fractionation Process ◽  
Biomass Fractionation

IonoSolv pretreatment using protic ionic liquids has shown impressive biomass fractionation performance and ionic liquid recyclability.

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