Papers by Keyword: Bagasse Ash

Abstract: In order to improve the mechanical performance and sustainability of road rehabilitation operations, this research sought to examine the effects of adding sugarcane bagasse ash and polyester fibers to Babylon soil on certain geotechnical parameters. Throughout the course of the experiment, soil was amended using ash alone, with and without polyester fibers, and finally with a mix of the two additives. Particularly, the results demonstrated a considerable improvement in the soil's surface bearing capacity, unconfined compressive strength, and ideal moisture content. The maximum dry density dropped even more, as one would anticipate when dealing with less dense materials than thick soil particles. The study indicates that a 20% polyester to 15% ash ratio is the optimal ash to polyester ratio. This study adds to the growing body of information suggesting that using recycled materials might enhance soil behavior. If this holds, it may reduce environmental damage by allowing newly constructed infrastructure in areas with poor soil to be replaced with recycled materials.

Abstract: Removal of Au(III) on a purified bagasse ash (BA) has been examined. The purified BA adsorbent was prepared through purification of a crude BA obtained from Madukismo sugarcane industry, Yogyakarta, Indonesia, using a mixed solution of HCl 0.1 M and HF 0.3 M and followed by HNO₃ 3 M. The HCl-HF-HNO₃ purified BA contained quartz with silanol (Si-OH) and siloxane (Si-O-Si) functional groups and aromatic component. Removal of Au(III) on the HCl-HF-HNO₃ purified BA was maximum at pH 4.2 with siloxane and silanol functional groups, but not aromatic component, took important role on the removal. At this optimum pH, the removal of Au(III) on the HCl-HF-HNO₃ purified BA fitter to the second order removal kinetics model than the pseudo-first and pseudo-second order kinetics models indicating that adsorption was not the only mechanism for the Au(III) removal. The second order removal rate constants (k₂) of Au(III) by HCl-HF-HNO₃ purified BA was 3.32 x 10² L/mol min. In fact, reduction of Au(III) to Au metal also occurred as an addition to adsorption for the removal of Au(III) from aqueous solution.

Abstract: The first stage to prepare bagasse ash to be synthesized. Furthermore, it will be in a furnace at a temperature of 600°C for 4 hours, then analyzed by SEM, BET, EDX, XRF to determine the morphology, surface area, elements and compounds contained in bagasse ash. The second stage is calcined using H₂ gas stream, then TGA analysis. The third stage results from calcination, then hydrothermal with the addition of a molar variation of 10Na₂O:xAl₂O₃ 15SiO₂: 300H₂O namely mixing 3.06 grams of Al₂O₃, 3.168 grams of NaOH, 1.908 grams of silica from bagasse ash and 20.87 grams of H₂O (pH=7). Then the sample will be analyzed using XRD and SEM. The next step will be to test zeolite Y which is synthesized into a metal solution medium, namely Pb²⁺ 25 ppm. The results of the XRF of bagasse ash contained a SiO₂ content of 54% which can be used as a synthetic zeolite with a surface area of 291,761 m2/g, after being synthesized, the surface area of ​​zeolite Y is 648,178 m²/g and % adsorption 97.43% for Pb metal. While commercial zeolite has a surface area of ​​133.122 m²/g with adsorption % 98.84%.

Abstract: This paper deals with the use of bagasse debris for sugarcane in concrete cement. The bagasse ash for sugarcane waste product. The bagasse ash is the waste material of the combustion of bagasse for energy in sugar plants. The bagasse debris is normally arranged in landfills and is presently effecting on a natural environment. Experimental work included pouring a concrete of C30 grade were and testing to investigate the concrete mechanical properties, slump test, elevated temperatures test and bond strength test. The bagasse ash was partially replaced with cement in percentages of (0, 3, 5, 7 and 10) % by of cement weight. The results of tests indicated that the best quantity was 7% by weight of cement gives the best compressive and tensile strength.

Abstract: The precipitated silica prepared by reaction of sodium silicate and gas CO₂ on fixed bed column have been production successfully. In this study, silica from bagasse was extraction by sodium hydroxide 2N solution to produce sodium silicate solution. The sodium silicate solution was dilute by demineralize water to produce some concentration in the range of 0.33-0.98 %SiO₂. Fixed bed column has a diameter of 7.5 cm with a height of 50 cm and a pH control apparatus. CO₂ gas and sodium silicate liquid are both flowed from under of the column with a specified flow rate. The precipitate process was carried out on a fixed bed column with high of bed in the range of 10-30 cm. The effect of silica concentration and the high of the bed on the characterize of the precipitated silica product have been studied. The precipitated silica product characterized by XRF, XRD, SEM-EDX and BET. The quality of precipitated silica produced in the range concentration of 95-98 w% SiO₂, surface area (BET) in the range of 46.1 – 58.8 m²/g.

Abstract: Sugarcane bagasse is an agricultural waste that is potentially used as natural silica resources. Natural silica claimed to be safe in handing, cheap and can be generate from cheap resource. In the objectives of this study were to prepared silica from Sugarcane bagasse. The preparation of Sugarcane bagasse ash by burning at 700 °C for 4 and 6 h, respectively in atmosphere. The result of X-ray florescent: XRF, silica content which was obtained after heat treatment at 700 °C for 6 h was 80.814 wt%. Bagasse ash was purified by alkaline extraction method with 1.5, 2 and 2.5 N sodium hydroxide (NaOH), respectively. And refluxed by using concentrated 2 N sulfuric acid. From X-ray diffraction pattern showed that the obtained products were amorphous silica, 2.5 N sodium hydroxide. The morphology was observed by SEM, sphere and average particles dimension of synthesis silica with 1.5, 2 and 2.5 N NaOH are 120, 100 and 80 nm respectively. The SEM micrographs showed that the Concentration of NaOH was increased, the particles dimension decreased

Abstract: This research was aimed to a present the physical and thermal properties of geopolymer pastes made of fly ash (FA) and bagasse ash (BA) with rice husk ash (RHA) containing at the doses of 0%, 2%, 4%, 6%, 8% and 10% by weight. The sodium hydroxide concentration of 15 molars, sodium silicate per sodium hydroxide by weight ratio of 2.0, the alkaline liquid per binder at the ratio of 0.60 and curing at ambient temperature were used at the to mix all mixtures to gether for 7 and 28 days. The properties analysis of the geopolymer pastes such as compressive strength, bulk density, water absorption, thermal conductivity, thermal diffusivity and thermal capacity were tested. The results were indicated that geopolymer pastes that containing rice husk ash 2% by weight for 28 days of curing gave the maximum compressive strength of 84.42 kg/cm², low water absorption of 1.16 %, low bulk density of 2,065.71 kg/cm³, lower thermal conductivity of 1.1173 W/m.K, lower thermal diffusion of 6.643 µm²/s and lower thermal capacity of 1.6819 MJ/m³K, respectively. The utilization of waste from agriculture industry via geopolymer pastes for green building materials can be achieved. For this research, physical properties and thermal insulation of geopolymer pastes were siqnificantly improved.

Abstract: Silica has been used as reinforcing filler in natural rubber for a period of time as it results in excellent properties for NR vulcanizes. Rice husk ash (RHA), bagasse ash (BA), and oil palm ash (OPA) obtained from agricultural wastes are mainly composed of silica in the percentage of 80.00%, 57.33%, and 40.20% by weight, respectively. The effect of these fillers on cure characteristics and mechanical properties of natural rubber materials at fixed silica content at 35 parts per hundred of rubber (phr) were investigated. The results indicated that ashes showed greater cure time compared to that of the silica. The incorporation of ashes into natural rubber gradually improved compression set but significantly decreased tensile strength, elongation at break, and resilience. Moreover, young's modulus increased, while hardness showed no significant change with the addition of ashes. Overall results indicated that ashes could be used as cheaper fillers for natural rubber materials where improved mechanical properties were not critical.

Abstract: Compressive strength of soft soil improvement using cement only and cement partial replacement with bagasse ash were studied. The strength characteristic of stabilized soil was investigated with various curing times of 7, 14 and 28 days. Tested result reveal the stabilized soil strength have trend to increase with time. Using 20% of bagasse ash by dry weight was suggested as optimum content for cement replacement to obtain highest strength. Comparing with cement improved soil, the stabilized soil strength of 20% BA replacement had higher over 25% and modulus of elasticity (E₅₀) was increased up to 37% at 28 days of curing. Change on stabilized soil structure was observed by scanning electron microscopy (SEM) reveal that the formation of hydration reaction product, CSH fabric and rod-like ettringite, have transformed stabilized soil structure denser and harder consequence increase in soil strength with time.

Abstract: Cement is currently the most versatile and widely used material in construction. However, the high carbon emissions and energy consumption associated with the manufacture of cement remains a serious concern. bagasse ash (BA) is a secondary waste product of bagasse-fired power generation. This study investigated the use of BA as a replacement for cement as a means of reducing the environmental impact of concrete-based construction. At 28 days, we measured the water absorption of cement mortar specimens as well as the compressive strength at room-temperature and after heating. Experiments were conducted involving the replacement of various proportions of cement using BA and fly ash (FA), followed by a comparison of the physical properties. Our test results demonstrate the applicability of BA in the production of cement mortar mixtures with high water-binder ratios. It was found that the water-binder ratio determines the optimal proportion of BA when used as a replacement for cement, wherein a higher water-binder ratio means that more of the cement can be replaced with BA. In compressive strength respect, the optimal cement replacement with BA was 15 % to 25 %, whereas the optimal cement replacement with FA was 20 %. BA was shown to have a more pronounced effect in reducing water absorption in cement mortar specimens with high water-binder ratios (0.55 to 0.65). The compactness of specimens with lower water absorption enables them to retain more of their initial compressive strength following exposure to high temperatures.