Zinc smelter

Water Groundwater can be treated in anaerobic bioreactors that encourage the growth of sulfate reducing bacteria, where the metals are reduced to insoluble sulfides, and concentrated in the sludge. For example, such a system is in use to decontaminate a zinc smelter site in the Netherlands (95). [Pg.37]

The exploration, evaluation, and development of zinc and lead ore bodies in North and Central America are discussed in Ref. 12. A survey of world zinc production in Ref. 13 gives all operating mines and mills, and their methods, production, and chemical analysis of the products zinc smelters are included. [Pg.397]

Zinc smelters use x-ray fluorescence spectrometry to analyze for zinc and many other metals in concentrates, calcines, residues, and trace elements precipitated from solution, such as arsenic, antimony, selenium, tellurium, and tin. X-ray analysis is also used for quaUtative and semiquantitative analysis. Electrolytic smelters rely heavily on AAS and polarography for solutions, residues, and environmental samples. [Pg.410]

Secondary Emissions from Basic Oxygen Process Steelmaking Facilities for Which Construction Commenced after January 20, 1983 Sewage Treatment Plants Primary Copper Smelters Primary Zinc Smelters... [Pg.2156]

Coal-cleaning plants (with thermal dryers) Kraft-pulp mills Portland-cement plants Primary zinc smelters Iron and steel mill plants Primary aluminum-ore-reduction plants Primary copper smelters ... [Pg.2157]

Primary lead smelters Primary zinc smelters... [Pg.413]

Mining and metallurgical Zinc roaster Zinc smelter Copper roaster Copper reverberatory furnace Copper converter Aluminum-Hall process Aluminum-Soderberg process Ilmenite dryer Titanium dioxide process Molybdenum roaster Ore beneficiation... [Pg.419]

Zink-harz, n. zinc blende, sphalerite, -hutte,/. zinc works, zinc smeltery, -hiittearauch, m. zinc (smelter) fume. [Pg.530]

One such process was developed by the Outokumpu Company in Finland and used in the company s zinc smelter at Kokkola. The gases are scrubbed with concentrated sulfuric acid, whereby mercury is dissolved as mercuric sulfate. After several recycling operations, the mercury concentration reaches saturation level such that crystals of mercuric sulfate form and can be removed. [Pg.772]

In this process EAF dust, other zinc-bearing wastes, recycled materials, coke or coal, lime, and silica are mixed and fed to a rotary furnace. The zinc and other volatile nonferrous metals in the feed are entrained in the furnace off-gas and are carried from the furnace to an external dust collection system. The resulting oxide (zinc calcine) is a crude zinc-bearing product that is further refined at zinc smelters. A byproduct of the process is a nonhazardous, iron-rich slag that can be used in road construction. Solidification technologies change the physical form of the waste to produce a solid structure in which the contaminant is mechanically trapped. [Pg.56]

The zinc industry employs 2200 workers at mines and mills and 1400 at primary smelters.14 The four primary zinc smelters in the U.S. are located in Illinois, Oklahoma, Tennessee, and Pennsylvania. There are ten secondary zinc recovery plants in the U.S.17... [Pg.91]

Electrolytic zinc smelters contain up to several hundred cells. A portion of the electrical energy is converted into heat, which increases the temperature of the electrolyte. Electrolytic cells operate at temperature ranges from 30 to 35°C (86 to 95°F) at atmospheric pressure. During electrowinning a portion of the electrolyte passes through cooling towers to decrease its temperature and to evaporate the water it collects during the process. [Pg.92]

Source From Hughes, M.L. and Haliburton, T.A., Use of zinc smelter waste as highway construction material, Highway Research Record, 430, 16-25, 1973. Das, B.M., Tarquin A.J., and Jones, A.Q., Geotechnical properties of copper slag, Transportation Research Record, 941, National Research Board, Washington, DC, 1993. [Pg.174]

Hughes, M.L. and Haliburton, T.A., Use of zinc smelter waste as highway construction material, Highway Research Record, 430, 16-25, 1973. [Pg.195]

Baker EL, Hayes CG, Landrigan PH, et al. 1977. A nationwide survey of heavy metal absorption in children living near primary copper, lead, and zinc smelters. Am J Epidemiol 106(4) 261-273. [Pg.490]

Table 1. Concentration of total (T) and available (A) Cu, Zn and Cd in soils sampled at various distances from the copper and zinc smelter in China (from Li et al. 2006)... [Pg.305]

Kelly JJ, Tate RL (1998) Effects of heavy metal contamination and remediation on soil microbial communities in the vicinity of a zinc smelter. J Environ Qual 27 609-617... [Pg.314]

Cadmium residues, in mg/kg dry weight (ppm) in soil, flora, and fauna collected near two zinc smelters in Palmerton, Pennsylvania... [Pg.24]

Modified from Beyer, W.N., O.H. Pattee, L. Sileo, D.J. Hoffman, and B.M. Mulhern. 1985. Metal contamination in wildlife living near two zinc smelters. Environ. Pollut. 38 A 63-86. [Pg.59]

Shrews, Sorex spp England 3 km from lead-zinc smelter vs. 23 km Carcass Immature Mature Kidney Immature Mature Liver Immature Mature... [Pg.161]

United States Pennsylvania Palmerton zinc smelter 1986 (6 years after smelter was closed) near smelter vs. distant sites ... [Pg.164]

Storm, G.L., G.J. Fosmire, and E.D. Beilis. 1994. Persistence of metals in soil and selected vertebrates in the vicinity of the Palmerton zinc smelters. Jour. Environ. Qual. 23 508-514. [Pg.231]

Proximity to the smokestacks of metal smelters is positively associated with increased levels of lead in the hair (manes) of horses and in tissues of small mammals, and is consistent with the results of soil and vegetation analyses (USEPA 1972). Lead concentrations were comparatively high in the hair of older or chronically impaired horses (USEPA 1972). However, tissues of white-tailed deer (Odocoileus virginianus) collected near a zinc smelter did not contain elevated levels of lead (Sileo and Beyer 1985). Among small mammals near a metal smelter, blood ALAD activity was reduced in the white-footed mouse but normal in others, e.g., the short-tailed shrew (Beyer et al. 1985). The interaction effects of lead components in smelter emissions with other components, such as zinc, cadmium, and arsenic, are unresolved (USEPA 1972) and warrant additional research. [Pg.257]

White-tailed deer, Odocoileus virginianus Near zinc smelter, Pennsylvania Feces Bone Teeth Kidney Liver... [Pg.279]

Starlings from pristine area in Poland were exposed in cages for 8 days near a zinc smelter Tissue lead concentrations were 3 to 12 times higher after 8 days stomach content lead levels increased from 2 mg/kg DW to 532, and feces increased from 0.4 to 154 mg Pb/kg DW 56... [Pg.307]

Diters, R.W. and S.W. Nielsen. 1978. Lead poisoning of raccoons in Connecticut. Jour. Wildl. Dis. 14 187-192. Dmowski, K. 1993. Lead and cadmium contamination of passerine birds (starlings) during their migration through a zinc smelter area. Acta Omithol. 28 1-9. [Pg.329]

Sileo, L. and W.N. Beyer. 1985. Heavy metals in white-tailed deer living near a zinc smelter in Pennsylvania. Jour Wildl. Dis. 21 289-296. [Pg.341]

Whole-body zinc content of terrestrial isopods seems to reflect soil zinc levels and may be a useful indicator of soil contamination (Hopkin et al. 1989). Porcellio scaber, a terrestrial isopod known as a woodlouse, is recommended as a biological indicator of zinc contamination because of the positive correlation between zinc content in soil or leaf litter and woodlouse hepatopancreas. Zinc content in Porcellio, litter, and soil near a zinc smelter, in mg/kg DW, was >1000 in whole isopod, >9000 in hepatopancreas, >10,000 in titter, and >50,000 in soil (Hopkin et al. 1986). [Pg.651]

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