Coke-oven workers are exposed to high concentrations of coke-oven emissions, which are comprised mainly of polycyclic aromatic hydrocarbons. We conducted a pilot study to determine the time changes in urinary 1-hydroxypyrene (1-OHP) concentrations, as a metabolite of pyrene, in coke-oven workers after exposure to a benzene-soluble fraction (BSF) of total particulates. Thirteen subjects, includi...

EAF plants normally consume coal and coke as reactants, alloying elements, or fuel. The price of these materials varies from € 0.20-0.35/kg. This is while nearly 10 million pieces of tires are annually discarded in Iran. The present study shows that scrap tires can be used as a substitute for coal and coke in EAF plants. Thirteen grades of steel including low, medium, and high carbon steels as ...

The state of deadman in hearth is important for the long campaign life blast furnace (BF). In order to clarify influence on sidewall erosion, corresponding relationship between shape and erosion was studied, fundamental reason difference analyzed, mechanism slag-coke interface iron-coke coke explored based phase distribution deadman. results show that: circumferential bulge at root a common fea...

This case deals with the inbound logistics of raw material coming to Coke Plant of a Steel Plant located in eastern India. The said plant was having problem of payment of huge demurrage charges to railways due to higher cycle time of wagon unloading which further affected the downstream process and raw material inventory. A study was initiated to solve these problems using TOC and simulation to...

Coke production is still of great economic importance due to its crucial role in the steel process. The reliability operation coke oven batteries depends on maintenance good technical condition their ceramic massif, which turn requires ensuring proper heating system and maintaining temperature stability flues. Regularly performed measurements flues size battery dynamics accompanying processes d...

OBJECTIVES Characterisation of the airborne concentration of 13 polycyclic aromatic hydrocarbons (PAHs) at various workplaces in a graphite electrode and a coke production plant. Validation of the urinary excretion of 1-hydroxypyrene (hydroxypyrene) as a biological marker of exposure to PAH. DESIGN Cross sectional study of workers exposed to PAHs (106 in the graphite electrode producing plant...

Thermal treatment of CCA impregnated waste wood is a way to utilize the energy resource of the wood and at the same time to reduce the volume of the waste. An issue of concern in relation to the thermal treatment is As emission to the air. Meanwhile there is still a matter to cope with when methods to avoid As emission are implemented; the residues with increased concentrations of Cu, Cr and As...

Two factor analysis (FA)-based receptor modeling methods were applied to a polycyclic aromatic hydrocarbon (PAH) dataset from extracts of 75 PM(10) air particulate samples collected concurrently at 4 sampling sites proximate to the urban-industrial area in Hamilton, Ontario, Canada. The total PAH concentrations of 48 target compounds ranged from 0.23 to 172 ng m(-3). Principal component analysi...

BACKGROUND Coke oven workers are regularly exposed to coke oven emissions (COE) and may be at risk of developing lung diseases. There is limited evidence for the link between exposure to COE and chronic obstructive pulmonary diseases (COPD). The aim of this study was to explore the dose-response relationship between COE exposure and COPD and to assess the interaction with cigarette smoking. M...