نتایج جستجو برای: residual oil fly ash

تعداد نتایج: 276621  

2003
X. Huang

Fly ash generated from low NOx burners at American Electric Power's Glen Lyn facility was beneficiated to remove residual carbon, magnetic particles, and cenospheres. The clean fly ash had a mean particle size of about 30 microns, which is coarser than typical commercial fillers used in plastics. To obtain a finer sized fly ash, air classification was used to separate the clean fly ash into its...

Journal: :Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA 2009
Sumrerng Rukzon Prinya Chindaprasirt

In this study, waste ash was utilized as a pozzolanic material in blended Portland cement in order to reduce negative environmental effects and landfill volume required to dispose of waste ash. The influence of waste ash, namely palm oil fuel ash, rice husk ash and fly ash on compressive strength and sulfate resistance in mortar were studied and evaluated by some accelerated short-term techniqu...

2018
Numan Salah Ahmed Alshahrie Najlaa D. Alharbi Zishan H. Khan

Lubricant oils in cars engines are essential components for reducing friction and fuel consumption. The lubrication process can be improved by including effective additives. Carbon nanostructures have been recognized as excellent additives in lubricant oils. Amongst them carbon nanotubes (CNTs) produced from carbon rich fly ash, are found to have excellent tribological properties in the sunflow...

2013
Zhenhua Tang Shuhua Ma Jian Ding Yuejiao Wang Shili Zheng Guanjie Zhai

: About 500 million tons (Mt) fly ash produces from coal-fired power stations every year in China, which causes severe economic and environmental problems. In this paper, current status and prospect of fly ash utilization in China was introduced in detail. China is a huge country which has many different geographical environments and various level of economic development. So, the level and meth...

2010
J. ADAMSON N. IRHA K. ADAMSON E. STEINNES U. KIRSO

Oil shale ash contains mineral ingredients of agricultural importance and could be used for treatment of soils. However, the ash contains several hazardous ingredients, i.e. toxic trace metals which could be mobile and create environmental concerns. Beneficial use of the oil shale ash in agriculture and forestry requires better knowledge of leaching characteristics of soil-ash systems. In this ...

Abstract Background: Photocatalytic process is used as a suitable method for o-chlorophenol removal. In this study, the efficiency of a mixture of modified fly ash and TiO2 nanoparticles in photocatalytic removal of o-chlorophenol was evaluated. Methods: After acid washing of fly ash, the absorbent was oxidized with potassium permanganate. ...

2012
Chintan Pathak V. K. Srivastava

The increasing requirements for the environmental protection have resulted in the search for more effective, inexpensive and ecologically safe solutions. Zeolite is one of the alternatives, which due to their peculiar structure are widely used for various environmental processes. The demand for an easily accessible and inexpensive source of zeolite has raised interest in synthesis of these mine...

Journal: :Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2005
Jee Young Kim Stephen S Hecht Sutapa Mukherjee Steven G Carmella Ema G Rodrigues David C Christiani

Residual oil fly ash is a chemically complex combustion product containing a significant component of potentially carcinogenic transition metals and polycyclic aromatic hydrocarbons (PAH). Various biomarkers of PAH exposure have been investigated previously, most notably 1-hydroxypyrene (1-OHP), in urine. In this study, we assessed the utility of r-1,t-2,3,c-4-tetrahydroxy-1,2,3,4-tetrahydrophe...

2014
Muhammad S. Vohra

Extended Abstract The electric power plants all over world using heavy oil as an energy source produce huge amounts of heavy oil fly ash (OFA) as a waste material. As the OFA waste poses a serious challenge in terms of handling and disposal, a sound and professional solution, other than a simple disposal practice, is urgently needed. In this regard, the conversion of OFA into activated carbon (...

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