Topic
Sawdust
About: Sawdust is a research topic. Over the lifetime, 5526 publications have been published within this topic receiving 86499 citations. The topic is also known as: wood dust & hard wood dust.
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TL;DR: In this article, the effects of the reaction temperature, reaction time, and sawdust concentration on the biomass conversion, the product yields and product properties during the hydrothermal liquefaction of pine sawdust were investigated.
35 citations
TL;DR: In this article, two different byproducts, pecan shells and sawdust obtained from the region of Chania, Crete, Greece, were subjected to slow pyrolysis over a temperature range of 250-550°C, for the production of biochar.
Abstract: In the present study, two different by-products, pecan shells, and sawdust obtained from the region of Chania, Crete, Greece, were subjected to slow pyrolysis over a temperature range of 250–550°C, for the production of biochar. The quality of the produced biochars was assessed by evaluating their main properties, namely pyrolysis yield, pH, volatile matter and char content, surface area, and C, H, S, N content. Thermogravimetric analysis, Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy were used for the identification of the morphology and structure of the produced biochars. The potential of selected pecan shells and sawdust biochars to adsorb Pb and Cu from synthetic solutions was also assessed.
35 citations
Journal Article•
TL;DR: In this paper, the authors investigated the adaption of Direct Red 81 (DR81) dye using Bamboo Sawdust (BSD) and Treated Bamboo sawdust (TBSD) in a batch system with respect to initial dye concentration, adsorbent dose, pH, temperature and contact time.
Abstract: Adsorption of Direct Red 81 (DR81) dye was investigated using Bamboo Sawdust (BSD) and Treated Bamboo Sawdust (TBSD) in a batch system with respect to initial dye concentration, adsorbent dose, pH, temperature and contact time. Maximum adsorption capacity ( q m ) obtained from the Langmuir isotherm plots were 6.43 mg/g (89%) (DR81-BSD) and 13.83 mg/g (92%) (DR81-TBSD) at 303 K. Freundlich and Halsey models described the data more appropriately as compared to Langmuir, Dubinin-Kaganer-Radushkevich (DKR), Harkin-Jura and Temkin models. The adsorption dynamics conformed well to pseudo-second order kinetic equation. The adsorption process was controlled by both liquid-film and intra-particle diffusions. Thermodynamic parameters ( Δ G o , Δ H o and Δ S o ) suggested the adsorption process to be spontaneous, endothermic with increase in randomness at solid-solution interface. Keywords : Treated Bamboo Sawdust, adsorption, isotherm, kinetic, intra-particle diffusion
35 citations
TL;DR: The removal of structural barriers to the enzyme attack was the dominant factor affecting enzyme accessibility to the substrate and the characteristics of the pretreated solids according to the pretreatment severity were strongly related with the glucose yield.
35 citations
Patent•
12 Feb 2014
TL;DR: In this article, a high-adsorptivity modified activated carbon which is prepared from the following raw materials in parts by weight: 30-40 parts of grape vine, 40-50 parts of sawdust, 100-120 parts of activated carbon, 30- 40 parts of corn cob, 6-9 parts of potassium hydroxide, 7-10 parts of sodium lauryl sulfate or polyethylene glycol.
Abstract: The invention relates to high-adsorptivity modified activated carbon which is prepared from the following raw materials in parts by weight: 30-40 parts of grape vine, 40-50 parts of sawdust, 100-120 parts of activated carbon, 30-40 parts of corn cob, 6-9 parts of potassium hydroxide, 7-10 parts of sodium lauryl sulfate or polyethylene glycol, 7-10 parts of urea, 2-5 parts of zinc nitrate, 2-5 parts of nickel nitrate, 10-14 parts of Arabic gum or sodium alginate, 7-10 parts of modified attapulgite and a right amount of water. According to the invention, the grape vine, sawdust and corn cob are subjected to high-temperature heat treatment, and the prepared activated carbon has large specific surface area, realizes new application of wastes and achieves the effects of convenient carbonization activation process and less pollutant discharge; and by using the potassium hydroxide, urea, zinc nitrate and nickel nitrate substances for modification, the activated carbon increases the gap and enhances the adsorption capacity. Besides, the high-adsorptivity modified activated carbon is accessible in raw materials, simple in process, low in cost and suitable for industrial production, causes no generation of harmful substances and has favorable application prospects.
35 citations