Open AccessSTUDY OF STEEL SLAG MICROCOSMIC STRUCTURE THAT BEFORE POLLUTANTS ADSORPTION AND REMOVAL IN WATER
Author(s) -
Trần Thị Thu Trang
Publication year - 2018
Publication title -
tạp chí khoa học đại học quốc gia hà nội: nghiên cứu giáo dục (vnu journal of science: education research)/tạp chí khoa học đại học quốc gia hà nội: các khoa học trái đất và môi trường (vnu journal of science: earth and environmental sciences)
Language(s) - English
Resource type - Journals
eISSN - 2615-9279
pISSN - 2588-1094
DOI - 10.25073/2588-1094/vnuees.4245
Subject(s) - slag (welding) , leaching (pedology) , metallurgy , materials science , toxicity characteristic leaching procedure , calcium silicate , silicate , adsorption , environmental pollution , waste management , environmental science , metal , chemical engineering , chemistry , composite material , environmental protection , organic chemistry , soil science , soil water , engineering
"Waste treatment waste" – Waste reuse which brings beneficial environmental there were diminishing waste, beneficial economical of waste treatment technology whom were not treatment waste. Our research is wanted to put steel slag material for environmental pollution treatment. The steel slag volumetric density is 3.1 ~ 3.6 g/cm3, clinical standards is 0175 mm, weight of the powder density of about 0175 g/cm3, surface with about 0.32 m2/g, middle size average 5.3 nm, which will meet the standards for good filtration performance. Steel slag’s chemistry component is CaO which analyzed by XRF spectroscopy its 48.2% and 42.5% in steel slag and steel slag powder, respectively, followed by function of Fe2O3 and MgO content; metals content determined by TCLP (Toxicity Characteristic Leaching Procedure) that show Pb, Hg, Cd, Cr, As, Ni, Cu, Mn, Zn content is fewer than National Standard II (GB 3838-2002); steel slag’s structure analyzed by SEM (Scanning Electron Spectroscopy) that show form of them and analyzed by XRD (X-Ray diffraction) that show component of them such as magnetite, tri-calcium silicate (Ca3S), di-calcium silicate (Ca2S), iron in tin (FeO). Steel slag adsorb toxic waste which make of simple and effective, that brought effect when applied in experimental and large-scale.