نتایج جستجو برای: residual oil fly ash

تعداد نتایج: 276621  

Journal: :international journal of environmental research 2015
s. salehin a. s. aburizaiza m. a. barakat

in this study, the recycling possibility of residual oil fly ash (rofa) towards preparing activated carbon and its application in environmental remediation through adsorbing cu (ii) and pb (ii) ions from aqueous solutions were investigated. activated carbons were prepared using two different physical activation methods such as under steam flow at 950 0c, and combined steam and co2 flow at 850 0...

Journal: :Environmental Health Perspectives 1988
S A Persson M Ahlberg L Berghem E Könberg G F Nordberg F Bergman

Male Syrian golden hamsters were given 15 weekly intratracheal instillations with suspensions of coal fly ash or oil fly ash. Controls were instilled with saline containing gelatine (0.5 g/100 mL) or to check particle effects with suspensions of hematite (Fe2O3). The common weekly dose was 4.5 mg/hamster. In addition, one subgroup of hamsters was treated with oil fly ash at a weekly dose of 3.0...

Journal: :Environmental Health Perspectives 1983
G L Fisher K L McNeill B A Prentice A R McFarland

Studies were performed to compare the physical and chemical characteristics and the in vitro macrophage cytotoxicity of oil and coal fly ash. Sampling methodology was developed to collect size-fractionated particulate matter from the smokestack of either a coal-fired or an oil-fired power plant. Morphological studies demonstrated particle heterogeneity, although most coal fly ash particles appe...

Journal: :international journal of environmental research 0
m.h. al-malack king fahd university of petroleum & minerals, dhahran, saudi arabia a.a. bukhari king fahd university of petroleum & minerals, dhahran, saudi arabia o.s. al-amoudi king fahd university of petroleum & minerals, dhahran, saudi arabia h.h. al-muhanna king fahd university of petroleum & minerals, dhahran, saudi arabia t.h. zaidi king fahd university of petroleum & minerals, dhahran, saudi arabia

plants firing fuel oil produce huge quantities of fly ash as solid waste, which needs to becharacterized prior to its proper management. it is worth mentioning that the published literature lackcomprehensive information on the characteristics of such fly ash. characteristics of fuel oil fly ash producedat selected power (pp) and water desalination (dp) plants were determined. the results showed...

Journal: :international journal of environmental research 2013
m.h. al-malack a.a. bukhari o.s. al-amoudi h.h. al-muhanna t.h. zaidi

plants firing fuel oil produce huge quantities of fly ash as solid waste, which needs to becharacterized prior to its proper management. it is worth mentioning that the published literature lackcomprehensive information on the characteristics of such fly ash. characteristics of fuel oil fly ash producedat selected power (pp) and water desalination (dp) plants were determined. the results showed...

Journal: :The American journal of physiology 1998
Andrew J Ghio Jacqueline D Carter James M Samet William Reed Jacqueline Quay Lisa A Dailey Judy H Richards Robert B Devlin

Increased availability of catalytically active metal has been associated with an oxidative injury. The sequestration of transition metals within intracellular ferritin confers an antioxidant function to this protein. Such storage by ferritin requires that the metal be transported across a cell membrane. We tested the hypothesis that, in response to in vitro exposures to catalytically active met...

2015

Fly ash is one of coal ashes resulted from power plants using coal to generate electricity. As a result of large utilization of coal, large volumes of coal ash produced as waste material. Direct use of these materials in construction projects, not only provides a promising solution to the disposal problem, but also as an alternative for structural fills material. High shear strength, low compre...

Journal: :Environmental Health Perspectives 2002
Andrew J Ghio Robert Silbajoris Johnny L Carson James M Samet

Epidemiologic studies have demonstrated increased human morbidity and mortality with elevations in the concentration of ambient air particulate matter (PM). Fugitive fly ash from the combustion of oil and residual fuel oil significantly contributes to the ambient air particle burden. Residual oil fly ash (ROFA) is remarkable in the capacity to provoke injury in experimental systems. The unique ...

Although the Indian population is largely vegetarian, not much attention has been given to the cultivation of vegetables, as compared to other crops like cereals, pulses and oil seeds. Therefore, the present study was conducted on two leafy vegetables, spinach (Spanacia oleracea L.) and methi (Trigonella foenum graecum L.) commonly grown in Aligarh, as the two popular vegetables of Indian diet....

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