Removal of pesticides from drinking water remains a challenge for treatment suppliers throughout the world. A combined dissolved air flotation (DAF) and powdered activated carbon (PAC) was investigated as process removal recalcitrant pesticide metaldehyde. The PAC dosing position relative to coagulant studied regarding its impact on NOM pesticide, floc formation clarification efficiency. Four d...

The flotation circuit in Sungun copper plant consists of two column flotation cells as cleaner, having fixed-spargers system. To achieve the expected aims in flotation step, there are serious operational challenges such as: fast choking of the static mixers, boiling problem, burping phenomena and pulp overflow to concentrate lander, maintenance and control problems. An attempt was exerted by im...

In this study, the responses of Dissolved Air Flotation (DAF), sedimentation, and sand filtration treatment processes on feed water with varied algal concentrations were investigated, based a technical–economic analysis using data collected from drinking plant (DWTP) in Guangxi, China. Cost-effective for sources algae proposed. The results showed that DAF was able to achieve almost 95% removal ...

Abstract In this work, a commercially available water treatment polymer poly(N,N-diallyl-N,N-dimethylammonium chloride) (PDADMAC) and hydrophobically modified (HMP) designed to adhere bubble surfaces were applied for the first time in novel Posi-dissolved air flotation process (PosiDAF) that uses polymer-modified bubbles, at pilot-scale of waste stabilisation pond samples rich algae. It was fou...

In the flotation of semi-soluble minerals such as calcite and fluorite, Ca2+ is one common dissolved components influencing collector adsorption behaviors on mineral surfaces. However, there very limited research focusing how affects separation fluorite calcite. study, with sodium oleate (NaOL) a tannic acid (TA) depressant, test, zeta potential measurement, experiment in presence were conducte...

Telah dilakukan penelitian tentang pengaruh wadah penyimpanan air terhadap nilai DO dan TDS pada aliran sungai Metro di Kota Malang. Tujuan dari ini adalah untuk mengetahui perubahan kadar tercemar setelah dalam waktu 24 jam tertentu. Sampel yang diambil berasal berlokasi Malang terindikasi cemaran limbah pasar. Air empat titik yaitu titik1 berjarak 250 meter sebelum pintu pembuangan pasar, 2 m...

Abstract Deinked pulp flotation column has been applied in wastepaper recycling. Bubble size in deinked pulp flotation column is very important during the flotation process. In this paper, bubble images of deinked pulp flotation column were first caught by digital camera, and then the bubbles were detected by using a detection algorithm based on sparse and redundant image processing. The result...

The mid-low grade of phosphate ore, rich by the silicate and carbonate gangue minerals needs a special treatment using flotation process. Where collectors play pivotal role. This study was conducted to enrich an untreated ore (without washing, desliming, hydrocycling, etc.), with eco-friendly economic collector based on soybean oil. Different analytical techniques such as UV-Visible, ATR-FTIR s...

It is possible to obtain good performance from a flotation plant but it has proved difficult to maintain such performance. Recovery rates on a flotation plant can be around 90% and often lower, making flotation one of the least efficient processes in the concentration path. Hence, over the last few decades much research and development has gone into the stabilization and optimization of flotati...