the potential of six economically cheap agricultural waste materials, viz. rice husk, betel nutpeels, sugarcane molasses, tea waste, mustard oil cake and saw dust, was investigated for copper and leadremoval from aqueous solutions under batch and continuous conditions. the effect of ph, contact time,sorbent dose and initial metal ion concentration on the uptake of copper and lead was first exam...

This proposal outlines a program of scientific research and educational development focused on mineral dust aerosol, atmospheric chemistry, and curricular use of satellite data. Mineral dust impacts the chemical composition of the atmosphere by providing a surface for heterogeneous chemistry, and for light scattering and absorption at photolytic wavelengths. We propose to assess the current and...

OBJECTIVES To document the prevalence of work related ocular (eyeWRI) and nasal (noseWRI) irritation in workers in spinning mills of cotton and synthetic textile fibres and to relate the prevalence of symptoms to atopy, byssinotic symptoms, work history, and measured dust concentrations in the personal breathing zone and work area. METHODS A cross sectional study of 1048 cotton workers and 40...

This paper describes the experimental results of removing arsenic from dust collected in electrostatic precipitators a fluidized bed roasting furnace (RP dust). The process generates 600 kilotons copper concentrate per year with 3 - 6 wt% concentration arsenic, producing roasted product low content below 0.3 wt%. 27 RP order 5 and around 20 Subsequently, is treated by hydrometallurgical methods...

Abstract A variety of dust control methods are often applied in coal mines, among which the application wet scrubbers has proven to be an efficient technology for removal airstreams, rather than diluting or confining dust. In this paper, a scrubber design was developed. Based on self-designed experimental test platform, total concentration, respirable air volume, and average pressure drops with...

Hydrogen energy attracts an amount of attention as environmentally friendly and sustainable source. However, hydrogen is also flammable. fires explosions might occur in wet-dust-removal systems if accumulated aluminum dust reacts with water. inhibition a safe method to address these issues. For this purpose, we used sodium citrate, renewable nontoxic raw material inhibit H2 formation. Specifica...