Due to the weak hydrophobicity of styrene phosphoric acid (SPA), amount used as a collector for rutile flotation is too large, resulting in high beneficiation costs. In this study, SPA was modified by nanobubbles enhance its hydrophobicity. paper, modification and adsorption mechanism on surface before after were studied means nanoparticle tracking analysis, micro-bubble test, contact angle zet...

Flotation constitutes a gravity separation process, which originated from the minerals processing field. However, it has, nowadays, found several other applications, as for example in the wastewater treatment field. Concerning the necessary bubble generation method, typically dispersed-air or dissolved-air flotation was mainly used. Various types of biological materials were tested and floated ...

We compared two larvae extraction methods involving sugar-flotation and an adapted Berlese funnel-extraction with emergence traps. This was done in order to analyse the colonisation of cowpats by Culicoides chiopterus (Meigen 1830) and Culicoides dewulfi (Goetghebuer 1936) (Diptera: Ceratopogonidae) and to gain information on the comparability and efficacy of these three methods. With all three...

Flotation wastewater treatment is widely used in various systems. The choice of aeration system plays a considerable role the development highly efficient flotation tanks. objective this work to point out factors that influence flotator type, and offer recommendations based on literature review data analysis. In paper, types systems tanks are considered: mechanical, pneumatic, pneumohydraulic e...

The evaluation of flotation reagents performs an important role in the selection and green application reagents. indexes effect collectors were selected by data literature method, system analysis mathematical model qualitative quantitative collectors, system, comprehensive established. normalization method expert methods adopted to obtain grade classification indicators, respectively. analytic ...

In this research, cerium recycling was studied by Adsorbing Colloid Flotation (ACF). Ten important parameters including collector type and dosage, cerium and colloid concentrations, frother type, activator type, preparation and frothing time, air flowrate and pH, each in two levels, were investigated. Statistical design of experiment was implemented for process modelling and analysis of var...

An attempt has been made in this paper to investigate the effect of particle size distribution on coal flotation kinetics. The effect of particle size (Ps) on kinetics constant (k) and maximum theoretical flotation recovery (RI) was investigated while other operational parameters were kept constant. The relationship between flotation kinetics constant and theoretical flotation recovery with par...

several laundry houses throughout tehran consume a large amount of water each day and discharge the resulting wastewater into septic tanks or municipal sewage system without any suitable pretreatment. this would result in severe contamination and other serious environmental issues. in the present study, performance of electrocoagulation/flotation process with aluminum and iron electrodes is com...