In this study, the integrated iron and steel plant mill scales prepared to concentrate in different ratios by blending with hematite character ore. CMC was used as binder coke will be reductant. The calcite added such a way that basicity ratio is 0.7. pelletizing machine pellet blends containing at then drying temperature of 150 °C. 28 kg / compressive strength obtained pellets from 100% scales...

This article presents the study of significant factors influence on pelletizing process soybean chaff. The aim research was to determine operating modes screw providing chaff pellets output with a crumbling not more than 12% at optimum temperature 70 — 80°C. To - such as flight step, rotation speed, moisture pelletizing, well optimal values variation these factors, search experiments were condu...

The maize very important role in the Brazilian economy because it has a high commercial value, having great production due to its ability adapt different edaphoclimatic conditions. Family farming produces seeds from local varieties, called creole seeds. This type of seed is resistant keeps relevant characteristics left as an inheritance ancestors, who, free charge, performed environmental servi...

The recycling of polypropylene recovered from waste discarded by a composting plant was investigated. recovery involved sorting step carried out means an optical infrared separator and subsequent washing treatment. This method processing allowed us to obtain that only slightly contaminated other polymeric inorganic materials. As many tens tons could be every year in this plant, convenient the e...

This paper concerns the process of production and properties of pellets based on biomass wastes. Co-pelletization was performed for sewage sludge from municipal wastewater treatment plant and other biomass material such as animal and olive wastes. The aim of the present study was to identify the key factors affecting on the sewage sludge and agricultural residues co-pelletization processes cond...

In this article we present the findings from an extensive case study of the use of Virtual Reality (VR) models in large construction projects. The study includes two parts: The first part presents a quantitative questionnaire designed to investigate how VR models are experienced and assessed by the workforce at a building site. The second part includes a qualitative field survey of how VR model...

OBJECTIVES The application of multiwall carbon nanotubes (MWCNTs) currently extends to various fields. However, it has been reported that exposure to CNT causes hazardous effects on animals and cells. The purpose of this study was to quantify the exposure to MWCNT in MWCNT/polymer composites for exposure assessment. We focused on catalytic metals included in the MWCNT and the diameter of dust r...