Carbonized Biomass as a bonding agent for Non-Load Bearing CHB Production

One‌ ‌of‌ ‌the‌ ‌most‌ ‌prominent‌ ‌construction‌ ‌materials‌ ‌for‌ ‌walls‌ ‌in‌ ‌the‌ ‌Philippines‌ ‌is‌ ‌the‌ ‌concrete‌ ‌hollow‌ ‌blocks‌ ‌or‌ ‌CHB‌ ‌due‌ ‌to‌‌ their lower cost‌ ‌than‌ ‌other‌ ‌available‌ ‌materials‌ ‌and‌ ‌the‌ ‌ease‌ ‌of‌ ‌production‌ ‌and‌ ‌installation.‌ To manage our energy and resources, including waste, carbonized‌ ‌biomass‌ ‌as‌ ‌a‌ ‌bonding‌ ‌agent‌ ‌for‌ ‌CHB‌ ‌production was studied to ‌aid‌ ‌in‌ ‌the‌ ‌country's growing‌ ‌need‌ ‌for‌‌construction materials‌ ‌. On-site fabricated CHB with several percent of carbonized biomass (CB) as substitutes for sand (0%, 20%, and 50% CB), including commercial CHB, are subjected to volume, weight, density determination, and ultimate compressive strength test. The gathered data undergo analysis through one-way ANOVA to determine the difference among the gathered compressive strength of CHB produced with different percentages of carbonized biomass. Cost analysis was also done to determine the costs and profitability of the CHB. As a result, the CHB with carbonized biomass as bonding agent produced CHB with low density, ultimate compressive strength better than commercially available CHB (with proper curing applied), and can be more profitable with increasing the carbonized biomass content.

The Effect of Grain Size on Microwave Interaction of Magnetite Concentrate Mixed with Carbonized Biomass Waste

Aims: In this study, microwave interaction of magnetite ore concentrate which was mixed with carbonized biomass waste and divided into different grain sizes, was studied. Materials and Methods: The mixture consisting of magnetite concentrate and carbonized product was pelletized by the addition of molasses and jelly as binders. The pellets prepared with various particle size powders were subjected to microwave treatment at different times. Results: emperature of the pellet produced with powders between -212 +150 μm grain sizes and -45 μm were measured as 837.5°C at 304th second and 945.9°C at 210th second respectively. Conclusion: Although there was a large temperature difference between the core and the surface of the pellet, a high degree of metallization was observed in these samples.

Adsorption properties of natural biomass tube clusters for dyes

In this research, the adsorption properties of biomass tube clusters (dandelion pappi) and carbonized biomass tube clusters toward dyes were investigated, respectively. The results showed that both biomass tube clusters and carbonized biomass tube clusters exhibited excellent adsorption properties for cationic dyes (alkaline orange and methyl violet). The adsorption properties of biomass tube clusters are better than that of carbonized biomass tube clusters. The adsorption capacity of biomass tube clusters to alkaline orange and methyl violet are 162.25[Formula: see text]mg[Formula: see text][Formula: see text] and 258.34[Formula: see text]mg[Formula: see text][Formula: see text], respectively, and carbonized biomass tube clusters are 158.50[Formula: see text]mg[Formula: see text][Formula: see text] and 136.95[Formula: see text]mg[Formula: see text][Formula: see text], respectively. Moreover, these materials display the excellent performance in terms of adsorption kinetics, and can reach adsorption equilibrium within 40[Formula: see text]min due to the characteristic of tubular structure. Simulation results demonstrated that the adsorption isotherm and the adsorption kinetics of the two materials were well matched with the Langmuir model and the pseudo first-order kinetic model, respectively. Besides the excellent adsorption property, many other advantages such as wide sources, environmental friendliness and low-cost make the present tube clusters potential application value in the field of dye wastewater treatment.

Hydrothermal Carbonization of Peat Moss and Herbaceous Biomass (Miscanthus): A Potential Route for Bioenergy

Peat moss and miscanthus were hydrothermally carbonized (HTC) either individually or co-processed in a different ratio to produce hydrochar. The hydrochar and pelletized hydrochar were then characterized to determine if hydrochar can be used as an alternative to coal to produce bioenergy from existing coal-fired power plants in Ontario that have already been shut down. The properties of carbonized biomass (either hydrochar or pellets) reveal that fuel grade hydrochar can be produced from peat moss or from the blend of peat moss and miscanthus (agricultural biomass/energy crops). Hydrochar either produced from peat moss or from the blend of peat moss and miscanthus was observed to be hydrophobic and porous compared to raw peat moss or raw miscanthus. The combustion indices of carbonized biomass confirmed that it can be combusted or co-combusted to produce bioenergy and can avoid slagging, fouling, and agglomeration problems of the bioenergy industry. The results of this study revealed that HTC is a promising option for producing solid biofuel from undervalued biomass, especially from high moisture biomass. Co-processing of peat moss with rural biomass, a relatively novel idea which can be a potential solution to heat and power for the rural communities/agri-industry that are not connected with national grids and alleviate their waste management problems. In addition, the hydrochar can also be used to run some of the existing coal-fired power plants that have already been shut down in Ontario without interrupting investment and employment.