China
Africa
Explore chapters and articles related to this topic
The Other Energy Markets
Published in Anco S. Blazev, Global Energy Market Trends, 2021
Sawdust, or wood dust, is a by-product of commercial wood processes: cutting, grinding, drilling, sanding, or otherwise pulverizing wood. It is therefore composed of fine particles of wood. It is also the byproduct of certain animals, birds and insects which live in wood, such as the woodpecker and carpenter ant. It can present a hazard in manufacturing industries, especially in terms of its flammability. Sawdust is also the main component of particleboard materials, which are used in great quantities around the world.
Golf Course Construction and Renovation
Published in L.B. (Bert) McCarty, Golf Turf Management, 2018
Sawdust is sometimes used as an organic amendment. Fresh sawdust, however, can have adverse effects by causing severe N deficiencies. The C-to-N ratio of sawdust can be as high as 400. Carbon-to-nitrogen ratios above ~20 cause a nutrient imbalance that results in soil microorganisms rapidly using up most or all of the available N. Some sawdusts also contain excessive salts. If used, sawdust should be well composted, be free of toxic materials, and have some N fertilizer added for plant use.
The Other Energy Sources
Published in Anco S. Blazev, Power Generation and the Environment, 2021
Sawdust, or wood dust, is a byproduct of cutting, grinding, drilling, sanding, or otherwise pulverizing wood, and is therefore composed of fine particles of wood. It is also a byproduct of certain animals, birds and insects which invade wood, such as the woodpecker and carpenter ant. It can present a hazard in manufacturing industries, especially in terms of its flammability. Sawdust is the main component of particleboard.
Property analysis of thermal insulating materials made from Ghanaian anthill clay deposits
Published in Cogent Engineering, 2020
The zero percent sawdust/rice husk bricks were light brownish in colour (control). The brown colour of the control samples was due to their low iron oxide content (Figure 5(a)). When mixed with sawdust or rice husk, the colour changed to dark-brown as shown in Figure 5(a). On firing the green bricks containing the additives, colour initially changed to black (Figure 5(b)) and eventually to a red-hot brick at 1200 ºC (Figure 5(c)). The initial black colour was due to burning of the sawdust and rice husk admixtures. Drying and firing of the anthill clay brick samples removed water and collapsed the hydrated crystal structures within it. The biomass also burnt off to create pores within the structure. Sawdust burns at relatively low firing temperatures (between 200°C and 650°C) as reported by Guo et al. (2015). This process of firing induces a thermally activated, irreversible phase changes in the constituents of the anthill clay (Edomwonyi-Otu et al., 2010). The final-fired brick was reddish in colour.
Adapted hyacinth briquetting machine for mass production of briquettes
Published in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2018
Modestus O. Okwu, Olusegun D. Samuel
A wide variety of briquette feedstock has been adopted to produce briquette fuels. The very common ones are sawdust (Adekoya 2007; Križan et al. 2015), groundnut shell (GNS) (Ajobo 2014; Oyelaran et al. 2015), grass (Mani, Tabil, and Sokhansanj 2009), and water hyacinth (Aina et al. 2009). Corn cob and sawdust are reported (Grover and Mishra 2011) to be the suitable feedstock for briquetting production, followed by coconut shell. Rice husk, jute dust, and de-oiled bran are highlighted to be the worst for solid due to their high MC. Sawdust is usually obtained from wood materials. They are available at sawmills where cutting of wood is constantly performed. They are often characterized by bulk density, wetness content, and residue content (Križan et al. 2015). Sawdust may be cheaper than agro-residues (Adekoya 2007). However, another waste is GNS, which is obtained from the groundnut plant. The production of briquettes from the combination of sawdust and GNS has not been adequately explored. Research work exist on the combustion properties of briquette fuels from sawdust-GNS using traditional machines. However, few studies are documented on the optimal production of multiple briquettes using a standard machine with hopper solution.
Survey on kinetic decomposition of organic matter and bio-fertilizer synthesis by composting sawdust, vegetable waste and sewage sludge
Published in Journal of the Chinese Advanced Materials Society, 2018
Christian O. Asadu, S. O. Egbuna, P. C. N. Ejikeme
Mixtures of sawdust, vegetable waste, and sewage sludge has shown to be a good biofertilizer considering the rate of nutrient release and microbial growth during composing. Also, the research has shown that composting sawdust alone will not produce an acceptable soil conditioner needed for soil amendment since it was observed that sawdust ties up nutrient as it decomposes. Experimental data and predicted values had a very good relationship as described by Xi et al. model.