Utilization of Slag Fibers as Ecomaterial. I. Characterization, Dissolution and Interfacial Properties in Aqueous Media.

Utilization of slag fibers as ecomaterial. II. Collection of Ultrafine Silica and Oil-Water Emulsion.

“…The SF surface is formed by both positive and negative sites as shown figure 12 ; thus, when the SF is placed in acidic condition its positive sites makers (Mg, Al, Ca, and Fe) quickly pass to the solution phase and negative sites maker (Si) mainly remain on the surface due to their different dissolution ratios, as was demonstrated in our previous work (13). To maintain the electroneutrality condition protons are adsorbed on the SF surface, forming a static plane, surrounding fibers.…”

“…A full physical and chemical characterization of this ecomaterial is available on reference (13). All chemicals were analytical reagent grade obtained from Wako Pure Chemicals Ind., which were employed without further treatment.…”

Rapid Recovery of Bacterial Cells from a Stable Dispersion by Heterocoagulation to a Fibrous Collector

“…The chemical composition examined using a fluorescence X-ray analyzer (X'UNIQUE, PHILIPS, U.S.) is listed in Table 1. It was confirmed that dissolution of ions from fiber was negligible in the pH range from 4 to 10 at ambient temperature (10). The specific surface area of fibrous slag was 0.17 m 2 /g determined by the BET method using a surface area measurement apparatus (ASAP2010, Micromeritics, U.S.).…”

“…On the other hand, pH had little effect on the mobility of P. aeruginosa, which was nearly zero, indicating that this strain was almost electrically neutral. Slag also had a negative charge within the pH range of 3 to 10 because its main component was SiO 2 , retaining the net negatively charged surface (10). The isoelectric point of aluminum hydroxide was at pH 8.7, suggesting that the surface treatment of fibrous slag could provide its surface with a net positive charge under pH 8.7.…”

Rapid Separation of Oil Particles from Low-Concentrated O/W Emulsions in the Presence of Anionic Surfactants Using Fibrous Slag

“…The collector medium employed was FS from a ferro-nickel electrosmelting process. Although FS is an industrial solid waste, we attempt to utilize it as a collector medium for ultrafine particles for an environment-friendly material (8). FS is effective for oil separation because of the following reasons.…”