Tanjung Bin Coal Bottom Ash: From Waste to Concrete Material

2013 ◽  
Vol 705 ◽  
pp. 163-168 ◽  
Author(s):  
Abdulhameed Umar Abubakar ◽  
Khairul Salleh Baharudin
Keyword(s):  
Power Plant ◽  
Economic Value ◽  
Bottom Ash ◽  
Chemical Properties ◽  
Strength Development ◽  
Concrete Material ◽  
Coal Bottom Ash ◽  
Physical And Chemical ◽  
Ash Pond ◽  
And Chemical Properties

Coal Bottom Ash (CBA) is a by-product from the generation of electricity using pulverized coal; Tanjung Bin power plant in Malaysia is a coal-based power plant that generates tonnes of bottom ash daily without known economic value that ends up in the ash pond. Due to the problems associated with the disposal ash pond in terms of cost and environmental impact, attention has now been focused on how best to utilize this waste. This paper present the recent development achieved on the utilization of bottom ash from Tanjung Bin power plant Malaysia in concrete development; physical and chemical properties, workability and fresh concrete properties as well as the strength development of Tanjung Bin bottom ash.

scholarly journals Evaluation of the properties of coal bottom ash, as regards the possibilities of using it in biological land reclamation

2018 ◽  
Vol 46 ◽  
pp. 00019
Author(s):  
Małgorzata Śliwka ◽  
Waldemar Kępys ◽  
Małgorzata Pawul
Keyword(s):  
Land Reclamation ◽  
Bottom Ash ◽  
Chemical Properties ◽  
Waste Recycling ◽  
Physical And Chemical Properties ◽  
Fluidised Bed ◽  
Coal Bottom Ash ◽  
Power Stations ◽  
Physical And Chemical ◽  
And Chemical Properties

The use of waste in land reclamation projects or road works is a generally applied method of waste recycling since coal bottom ash can be used in plant substrate. This paper presents the results of research on the physical and chemical properties and the toxicity of waste originating from power stations, in the form of coal bottom ash collected from pulverisedfuel and fluidised-bed boilers. To evaluate the eco-toxicological properties of waste, a series of plant growing tests were conducted, with the use of selected plant species, as well as germination tests in water extracts of waste. The latter were intended to determine whether coal bottom ash displayed cytostatic activity, while, in the case of pot experiments, the purpose was to determine the germination rates and growths of both above-ground and underground parts of plants. The test results indicated that the influence of the tested coal bottom ash on the plant development and growth depended on physical and chemical properties of that waste. The reactions of plants were also changing depending on the proportion of waste in soil.

scholarly journals PRODUCTION OF 'SAMANTHA' GREENHOUSE ROSES IN ROOT MEDIA AMENDED WITH COAL BOTTOM ASH AND COMPOSTED HARDWOOD BARK

HortScience ◽  
1993 ◽  
Vol 28 (4) ◽  
pp. 255E-255
Author(s):  
Susan H. Butler ◽  
Bradford Bearce
Keyword(s):  
Cover Crop ◽  
Bottom Ash ◽  
Chemical Properties ◽  
Stem Length ◽  
Retention Data ◽  
Flower Bud ◽  
Coal Bottom Ash ◽  
Root Media ◽  
Physical And Chemical ◽  
And Chemical Properties

Rosa × hybrida 'Samantha' plants were planted in pots of three soilless and two soil-containing media. Soilless media consisted of coal bottom ash and composted hardwood bark in 1:1, 2:1, and 3:1 ratios. Soil-containing media were equal parts soil, peat, and coal bottom ash; and a control of equal parts soil, peat, and sand. Half the pots of each media were treated with a cover crop of Hordeum vulgare L. 'Barsoy' to simulate weathering and incorporate additional organic matter prior to planting the roses. Physical and chemical properties of all five original media were examined, and production indices of two harvests were measured; including stem length, flower bud diameter, fresh weight, days to harvest and average number of blooms per plant. Results to date indicate satisfactory growth in all treatments. The three soilless treatments have produced more stems with larger flower bud diameters and shorter days-to-harvest than the soil-containing treatments. However, the fertilization, and electrical conductivity of all treatments remains below normal. Moisture retention data also show the soil-containing treatments to have higher container capacity and easily available water. Cover-cropped plants also had shorter days-to-harvest, but in one of two harvests produced flower buds of smaller diameter.

scholarly journals Study of the Incorporation of Biomass Bottom Ash as a Filler for Discontinuous Grading Bituminous Mixtures with Bitumen Emulsion

2021 ◽  
Vol 11 (8) ◽  
pp. 3334
Author(s):  
Jorge Suárez-Macías ◽  
Juan María Terrones-Saeta ◽  
Francisco Javier Iglesias-Godino ◽  
Francisco Antonio Corpas-Iglesias
Keyword(s):  
Raw Materials ◽  
Bottom Ash ◽  
Chemical Properties ◽  
Physical And Mechanical Properties ◽  
Waste Biomass ◽  
Bituminous Mixtures ◽  
Bitumen Emulsion ◽  
Main Disadvantage ◽  
Physical And Chemical ◽  
And Chemical Properties

Energy consumption, because of population development, is progressively increasing. For this reason, new sources of energy are being developed, such as that produced from the combustion of biomass. However, this type of renewable energy has one main disadvantage, the production of waste. Biomass bottom ash is a residue of this industry that currently has not much use. For this reason, this research evaluates its use as a filler in bituminous mixtures, since this sector also has a significant impact on the environment, as it requires large quantities of raw materials. With this objective, first, the physical and chemical properties of biomass bottom ashes were evaluated, verifying their characteristics for their use as filler. Subsequently, bituminous mixtures were conformed with biomass bottom ash as filler, and their physical and mechanical properties were analyzed through particle loss and Marshall tests. The results of these tests were compared with those obtained with the same type of mixture but with conventional and ophite aggregates. This study confirmed that biomass bottom ash was viable for use as a filler, creating mixtures with a higher percentage of bitumen, better mechanical behavior, and similar physical properties. In short, more sustainable material for roads was obtained with waste currently condemned to landfill.

Fire-Resistant Fluids for General Hydraulic and Steam Turbine Systems

1967 ◽  
Vol 182 (1) ◽  
pp. 109-134 ◽  
Author(s):  
A. C. M. Wilson
Keyword(s):  
Power Plant ◽  
Physical Properties ◽  
Chemical Stability ◽  
Chemical Properties ◽  
Phosphate Esters ◽  
Physical And Chemical Properties ◽  
Corrosion Properties ◽  
Physical And Chemical ◽  
Better Than ◽  
And Chemical Properties

Major items of C.E.G.B. power plant are now being designed to operate at high steam temperatures and hydraulic pressures. In consequence, the risk of fires due to leaking petroleum lubricants is increasing. Suitable fire-resistant (f.r.) fluids are therefore desirable. Some of these have, however, given rise to difficulties in service due to changes in their physical and chemical properties. The physical properties of non-aqueous synthetic f.r. fluids (i.e. phosphate esters and chlorinated diphenyls) have been surveyed, and their chemical stability and anti-corrosion properties determined. Whilst the physical properties of the phosphate esters are better than those of the chlorinated diphenyls the chemical stability and corrosion properties are much worse.

scholarly journals Study on Physical and Chemical Properties of Industrial Silicon Slag

2021 ◽  
Author(s):  
Dan Qiao ◽  
Shuai Liang ◽  
Jian Guo Zhao ◽  
Xiu Jing Peng ◽  
Yong Nie ◽  
...  
Keyword(s):  
Theoretical Basis ◽  
Surface Composition ◽  
Economic Value ◽  
Chemical Properties ◽  
Interfacial Structure ◽  
Physical And Chemical Properties ◽  
Two Phase ◽  
Physical And Chemical ◽  
Silicon Particles ◽  
And Chemical Properties

Abstract Silicon slag is a secondary refining byproduct from industrial silicon. The content of industrial silicon in silicon slag is about 20% , which has extremely high economic value. To better achieve the recovery and reuse of industrial silicon slag, the morphology of industrial silicon slag, the occurrence state of elements and especially the interfacial structure between silicon and slag were deeply studied in this paper. The macro and micro morphology and surface composition distribution of the silicon slag were observed by microscope, SEM-EDS and Raman spectroscopy. The phase and composition of the silicon slag were analyzed by XRF and XRD. The results showed that the purity of silicon particles in silicon slag is high up to 99% . The size and shape of silicon in silicon slag were quite different. The interface between silicon and slag is clear and there is no obvious two-phase transition zone, which is conducive to the recycling of silicon. The crushing behavior of silicon slag under different pressure was investigated. These results provide a theoretical basis for further crushing silicon slag and recovering silicon particles. When silicon slag was crushed under certain pressure, the fracture surface of large-size silicon was mostly silicon-silicon interface. Therefore, in order to realize the complete dissociation of slag and silicon, the size of the crushing particle needs to be small enough. In this paper, the physical and chemical properties of industrial silicon slag were studied, which provides a theoretical basis for the efficient separation and recovery of silicon in the slag.

Resources Utilization of Municipal Solid Waste Incineration Ash

2012 ◽  
Vol 518-523 ◽  
pp. 3463-3469
Author(s):  
Heng Lin Xiao ◽  
Jing Zhu ◽  
Jun He ◽  
Hong Wang
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Bottom Ash ◽  
Chemical Properties ◽  
Waste Incineration ◽  
Simple Analysis ◽  
Environmental Requirements ◽  
Physical And Chemical ◽  
The City ◽  
And Chemical Properties

Incineration is an effective way for amega-city to dispose of its substantial Municipal Solid Waste(MSW) in China. But more than 20% of the waste (by weight) will retain in combustor ash, producing a great amount of ash. How to deal with the incineration ash has become a critical problem to the city developing. By the simple analysis of the physical and chemical properties of the ash, and to basis of the beneficial use of municipal waste combustion ash in some countries, the ways of the resource utilization of the bottom ash mainly are discussed in the paper. In addition, engineering and environmental requirements for ash utilization are also analyzed.

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