Survey of trace elements in coals and coal-related materials by neutron activation analysis

Ruch, R.R.; Cahill, Richard A.; Frost, J.K.; Camp, L.R.; Gluskoter, H.J.

doi:10.1007/bf02520217

Cited by 22 publications

(3 citation statements)

References 2 publications

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“…19 While their ash content is substantially lower, the average *6 oil contains higher concentrations of the observed elements than Eastern coal. 20 It is interesting to note that the sole OFPP located in an urban area (OFPP-3) consistently burned "cleaner" # 4 grade oils.…”

Section: Fuel Oilsmentioning

confidence: 99%

Trace-Element Patterns in Fuel Oils and Gasolines for Use in Source Apportionment

Kitto

1993

Air & Waste

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Over 30 fuel oils used for power generation in 1980 and 1988 were analyzed for 30 elements by instrumental neutron activation analysis to determine concentration patterns useful in source apportionment. The generally more viscous #6 oils contained higher concentrations of most elements than the more refined #4 and #2 fuel oils for both years. Results indicate that, while many elements in the fuel oils have decreased in concentration during this time, the rare-earth elements (REEs) have remained steady, apparently owing to the continued use of REE-containing catalysts for petroleum refining. Because the fuel oils contained similar REE enrichments and ratios as observed in cracking catalysts and emissions from refineries and oil combustion, their REE signatures are applicable to receptor modeling. Much lower trace-element concentrations were observed in current unleaded gasolines and the REEs appear depleted. So 4 0.22 1.08 0.35 ' 0,75 0.88 0.44 109 0,98 108 0.22 0.16 0.2S 10 U 4.2 2.4 17 16 0,839 O03S Cr 3 29 98 75 93 88 §7 152 138 141 67 49 78 41 102 129 01 89 89 31 U Fe a 1700 7880 3650 4800 5710 5240 9720 mm 9090 1710 1380 1390 1380 4000 4290 2070 3130 3340 308 88

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Section: Fuel Oilsmentioning

confidence: 99%

Trace-Element Patterns in Fuel Oils and Gasolines for Use in Source Apportionment

Kitto

1993

Air & Waste

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“…A thorough literature review was conducted in order to determine which were the optimum isotopes to count, potential irradiation times, and a preparation method for irradiation standards. Several researchers have reported using neutron activation for coal analysis (20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30). Much of this work was for coals only; slag and fly ash samples have a much higher level of many elements.…”

Section: Resultsmentioning

confidence: 99%

Analysis for trace elements in magnetohydrodynamic (MHD) pilot power plant effluents

Te¹,

Ej²,

Da³

et al. 1984

Environ. Sci. Technol.

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“…The combustion processes, including the burning of coal and petroleum‐based fuels, mobilize HMs, exacerbating their release into the atmosphere. Coal contains around fifty diverse elements, while crude oil and gasoline house thirty‐five and twenty different elements, respectively [16–21] . Particulate emissions, influenced by fuel type and combustion processes, not only pose health risks but also catalysed the transformation of primary air pollutants into secondary pollutants, corroding and abrading metal surfaces.…”

Section: Introductionmentioning

confidence: 99%

Review on Agrobiowaste‐mediated Nanohybrids for Removal of Toxic Heavy Metals from Wastewater

Chaudhary,

Singh,

Daddemal‐Chaudhary

et al. 2024

ChemistrySelect

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Because of the growing population and the industrial revolution, a significant number of toxic materials including heavy metals (HMs) are being released into the environment, posing harm to humans, the environment, and other living organisms. When these HMs find their way into water sources, they cause water pollution and pose a threat to the ecosystem. As a result, there is an imperative need to eliminate these HMs from the water. Numerous techniques are being employed for water purification, but adsorption is the most economical and efficient method. The present article critically discussed the applications of different adsorbents including agricultural wastes, industrial wastes, biochar, chitosan, aerogel‐based adsorbents, geopolymer cement/concrete, carbon‐based nanomaterials (NMs), and polymer‐supported nanocomposites (NCs) for removal of HMs from wastewater. Removal capacity of some of the adsorbents are tabulated. Effects of dose of adsorbent, contact time, pH, temperature, initial ion concentration and ionic strength on the removal of HMs from water have been explored. Various adsorption isotherm and kinetic models have also been discussed, including the modeling using artificial neural networks.

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Survey of trace elements in coals and coal-related materials by neutron activation analysis

Cited by 22 publications

References 2 publications

Trace-Element Patterns in Fuel Oils and Gasolines for Use in Source Apportionment

Trace-Element Patterns in Fuel Oils and Gasolines for Use in Source Apportionment

Analysis for trace elements in magnetohydrodynamic (MHD) pilot power plant effluents

Review on Agrobiowaste‐mediated Nanohybrids for Removal of Toxic Heavy Metals from Wastewater

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